./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 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_bc734661-3cf9-412c-8a94-976cb2f71a15/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc734661-3cf9-412c-8a94-976cb2f71a15/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc734661-3cf9-412c-8a94-976cb2f71a15/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc734661-3cf9-412c-8a94-976cb2f71a15/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc734661-3cf9-412c-8a94-976cb2f71a15/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc734661-3cf9-412c-8a94-976cb2f71a15/bin/uautomizer-uyxdKDjOR8 --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 a5340faf3ec1f0e0bc66d280fc3b45c510e704ff1d108d74101ee8606e665888 --- 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-2329fc7 [2022-12-13 13:11:10,646 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:11:10,648 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:11:10,667 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:11:10,668 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:11:10,669 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:11:10,670 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:11:10,672 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:11:10,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:11:10,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:11:10,675 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:11:10,676 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:11:10,677 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:11:10,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:11:10,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:11:10,680 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:11:10,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:11:10,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:11:10,683 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:11:10,685 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:11:10,686 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:11:10,688 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:11:10,689 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:11:10,690 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:11:10,693 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:11:10,693 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:11:10,694 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:11:10,694 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:11:10,695 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:11:10,696 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:11:10,696 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:11:10,697 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:11:10,698 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:11:10,698 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:11:10,699 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:11:10,699 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:11:10,700 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:11:10,700 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:11:10,700 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:11:10,701 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:11:10,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:11:10,703 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc734661-3cf9-412c-8a94-976cb2f71a15/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-12-13 13:11:10,726 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:11:10,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:11:10,726 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:11:10,726 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:11:10,727 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:11:10,728 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:11:10,728 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:11:10,728 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 13:11:10,728 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 13:11:10,728 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 13:11:10,729 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 13:11:10,729 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 13:11:10,729 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 13:11:10,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:11:10,729 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:11:10,730 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 13:11:10,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:11:10,730 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:11:10,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:11:10,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 13:11:10,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 13:11:10,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 13:11:10,731 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:11:10,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:11:10,731 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 13:11:10,731 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:11:10,732 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 13:11:10,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:11:10,732 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:11:10,732 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:11:10,732 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:11:10,733 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 13:11:10,734 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_bc734661-3cf9-412c-8a94-976cb2f71a15/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc734661-3cf9-412c-8a94-976cb2f71a15/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5340faf3ec1f0e0bc66d280fc3b45c510e704ff1d108d74101ee8606e665888 [2022-12-13 13:11:10,919 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:11:10,938 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:11:10,940 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:11:10,941 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:11:10,942 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:11:10,943 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc734661-3cf9-412c-8a94-976cb2f71a15/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c [2022-12-13 13:11:13,477 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:11:13,688 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:11:13,688 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc734661-3cf9-412c-8a94-976cb2f71a15/sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c [2022-12-13 13:11:13,699 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc734661-3cf9-412c-8a94-976cb2f71a15/bin/uautomizer-uyxdKDjOR8/data/0a97cd6bf/c22db00db46f4a229e69aed34950d325/FLAGff771d2d8 [2022-12-13 13:11:13,709 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc734661-3cf9-412c-8a94-976cb2f71a15/bin/uautomizer-uyxdKDjOR8/data/0a97cd6bf/c22db00db46f4a229e69aed34950d325 [2022-12-13 13:11:13,712 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:11:13,713 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:11:13,714 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:11:13,714 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:11:13,717 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:11:13,717 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:11:13" (1/1) ... [2022-12-13 13:11:13,718 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d12e043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:11:13, skipping insertion in model container [2022-12-13 13:11:13,718 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:11:13" (1/1) ... [2022-12-13 13:11:13,724 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:11:13,752 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:11:13,859 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_bc734661-3cf9-412c-8a94-976cb2f71a15/sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c[1605,1618] [2022-12-13 13:11:13,937 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:11:13,948 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:11:13,958 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_bc734661-3cf9-412c-8a94-976cb2f71a15/sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c[1605,1618] [2022-12-13 13:11:13,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:11:14,010 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:11:14,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:11:14 WrapperNode [2022-12-13 13:11:14,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:11:14,012 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:11:14,012 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:11:14,012 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:11:14,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:11:14" (1/1) ... [2022-12-13 13:11:14,027 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:11:14" (1/1) ... [2022-12-13 13:11:14,058 INFO L138 Inliner]: procedures = 57, calls = 104, calls flagged for inlining = 57, calls inlined = 173, statements flattened = 1197 [2022-12-13 13:11:14,058 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:11:14,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:11:14,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:11:14,059 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:11:14,067 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:11:14" (1/1) ... [2022-12-13 13:11:14,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:11:14" (1/1) ... [2022-12-13 13:11:14,070 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:11:14" (1/1) ... [2022-12-13 13:11:14,070 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:11:14" (1/1) ... [2022-12-13 13:11:14,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:11:14" (1/1) ... [2022-12-13 13:11:14,085 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:11:14" (1/1) ... [2022-12-13 13:11:14,087 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:11:14" (1/1) ... [2022-12-13 13:11:14,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:11:14" (1/1) ... [2022-12-13 13:11:14,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:11:14,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:11:14,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:11:14,093 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:11:14,094 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:11:14" (1/1) ... [2022-12-13 13:11:14,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:11:14,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc734661-3cf9-412c-8a94-976cb2f71a15/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:11:14,123 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc734661-3cf9-412c-8a94-976cb2f71a15/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:11:14,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc734661-3cf9-412c-8a94-976cb2f71a15/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 13:11:14,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:11:14,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 13:11:14,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:11:14,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:11:14,217 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:11:14,219 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:11:14,719 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:11:14,727 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:11:14,727 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 13:11:14,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:11:14 BoogieIcfgContainer [2022-12-13 13:11:14,729 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:11:14,730 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 13:11:14,730 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 13:11:14,733 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 13:11:14,734 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 13:11:14,734 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 01:11:13" (1/3) ... [2022-12-13 13:11:14,734 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@49d4bb11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 01:11:14, skipping insertion in model container [2022-12-13 13:11:14,735 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 13:11:14,735 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:11:14" (2/3) ... [2022-12-13 13:11:14,735 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@49d4bb11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 01:11:14, skipping insertion in model container [2022-12-13 13:11:14,735 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 13:11:14,736 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:11:14" (3/3) ... [2022-12-13 13:11:14,737 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product61.cil.c [2022-12-13 13:11:14,779 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 13:11:14,779 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 13:11:14,780 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 13:11:14,780 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 13:11:14,780 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 13:11:14,780 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 13:11:14,780 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 13:11:14,780 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 13:11:14,784 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) [2022-12-13 13:11:14,807 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 208 [2022-12-13 13:11:14,808 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 13:11:14,808 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 13:11:14,813 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:11:14,813 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:11:14,813 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 13:11:14,814 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) [2022-12-13 13:11:14,822 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 208 [2022-12-13 13:11:14,822 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 13:11:14,822 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 13:11:14,823 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:11:14,823 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:11:14,827 INFO L748 eck$LassoCheckResult]: Stem: 178#$Ultimate##0true 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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 193#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~11#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~11#1;assume { :begin_inline_select_helpers } true; 28#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 283#select_features_returnLabel#1true 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; 108#valid_product_returnLabel#1true main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~11#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 291#L994true assume 0 != main_~tmp~11#1;assume { :begin_inline_setup } true; 85#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 282#L361-2true [2022-12-13 13:11:14,828 INFO L750 eck$LassoCheckResult]: Loop: 282#L361-2true assume !false; 144#L362true assume test_~splverifierCounter~0#1 < 4; 150#L363true test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 228#L371true assume !(0 != test_~tmp~6#1); 199#L371-2true test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 82#L381true assume !(0 != test_~tmp___0~2#1); 99#L381-2true test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 102#L391true assume 0 != test_~tmp___2~0#1; 164#L397-2true assume { :begin_inline_timeShift } true; 71#L115true assume !(0 != ~pumpRunning~0); 219#L115-2true assume !(0 != ~systemActive~0); 45#L122-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_#t~ret30#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~7#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 224#getWaterLevel_returnLabel#1true __utac_acc__Specification4_spec__1_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~7#1 := __utac_acc__Specification4_spec__1_#t~ret29#1;havoc __utac_acc__Specification4_spec__1_#t~ret29#1; 196#L528true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7#1); 56#L528-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 225#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 282#L361-2true [2022-12-13 13:11:14,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:11:14,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-12-13 13:11:14,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:11:14,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806130889] [2022-12-13 13:11:14,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:11:14,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:11:14,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:11:14,907 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:11:14,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:11:14,933 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:11:14,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:11:14,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1828258692, now seen corresponding path program 1 times [2022-12-13 13:11:14,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:11:14,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377370680] [2022-12-13 13:11:14,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:11:14,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:11:14,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:11:14,942 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:11:14,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:11:14,949 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:11:14,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:11:14,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1111289528, now seen corresponding path program 1 times [2022-12-13 13:11:14,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:11:14,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653305089] [2022-12-13 13:11:14,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:11:14,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:11:14,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:11:15,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:11:15,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:11:15,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653305089] [2022-12-13 13:11:15,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653305089] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:11:15,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:11:15,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 13:11:15,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058981166] [2022-12-13 13:11:15,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:11:15,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:11:15,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:11:15,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:11:15,212 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) [2022-12-13 13:11:15,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:11:15,319 INFO L93 Difference]: Finished difference Result 315 states and 415 transitions. [2022-12-13 13:11:15,321 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 315 states and 415 transitions. [2022-12-13 13:11:15,326 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 204 [2022-12-13 13:11:15,333 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 315 states to 305 states and 405 transitions. [2022-12-13 13:11:15,334 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 305 [2022-12-13 13:11:15,335 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 305 [2022-12-13 13:11:15,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 305 states and 405 transitions. [2022-12-13 13:11:15,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:11:15,338 INFO L218 hiAutomatonCegarLoop]: Abstraction has 305 states and 405 transitions. [2022-12-13 13:11:15,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states and 405 transitions. [2022-12-13 13:11:15,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2022-12-13 13:11:15,374 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) [2022-12-13 13:11:15,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 405 transitions. [2022-12-13 13:11:15,378 INFO L240 hiAutomatonCegarLoop]: Abstraction has 305 states and 405 transitions. [2022-12-13 13:11:15,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 13:11:15,382 INFO L428 stractBuchiCegarLoop]: Abstraction has 305 states and 405 transitions. [2022-12-13 13:11:15,382 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 13:11:15,383 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 305 states and 405 transitions. [2022-12-13 13:11:15,385 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 204 [2022-12-13 13:11:15,386 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 13:11:15,386 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 13:11:15,386 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:11:15,386 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] [2022-12-13 13:11:15,387 INFO L748 eck$LassoCheckResult]: Stem: 908#$Ultimate##0 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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 909#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~11#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~11#1;assume { :begin_inline_select_helpers } true; 705#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 706#select_features_returnLabel#1 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; 837#valid_product_returnLabel#1 main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~11#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 838#L994 assume 0 != main_~tmp~11#1;assume { :begin_inline_setup } true; 807#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 808#L361-2 [2022-12-13 13:11:15,387 INFO L750 eck$LassoCheckResult]: Loop: 808#L361-2 assume !false; 876#L362 assume test_~splverifierCounter~0#1 < 4; 877#L363 test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 885#L371 assume !(0 != test_~tmp~6#1); 918#L371-2 test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 803#L381 assume !(0 != test_~tmp___0~2#1); 805#L381-2 test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 824#L391 assume 0 != test_~tmp___2~0#1; 829#L397-2 assume { :begin_inline_timeShift } true; 784#L115 assume !(0 != ~pumpRunning~0); 785#L115-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 929#L199 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret9#1, isMethaneAlarm_~retValue_acc~2#1;havoc isMethaneAlarm_~retValue_acc~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 931#isMethaneLevelCritical_returnLabel#1 isMethaneAlarm_#t~ret9#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~2#1 := isMethaneAlarm_#t~ret9#1;havoc isMethaneAlarm_#t~ret9#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; 952#isMethaneAlarm_returnLabel#1 processEnvironment_#t~ret7#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret7#1;havoc processEnvironment_#t~ret7#1; 709#L203 assume 0 != processEnvironment_~tmp~2#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 710#deactivatePump_returnLabel#1 assume { :end_inline_deactivatePump } true; 864#L199-1 assume { :end_inline_processEnvironment } true; 740#L122-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_#t~ret30#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~7#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 741#getWaterLevel_returnLabel#1 __utac_acc__Specification4_spec__1_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~7#1 := __utac_acc__Specification4_spec__1_#t~ret29#1;havoc __utac_acc__Specification4_spec__1_#t~ret29#1; 923#L528 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7#1); 761#L528-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 762#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 808#L361-2 [2022-12-13 13:11:15,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:11:15,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-12-13 13:11:15,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:11:15,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712032065] [2022-12-13 13:11:15,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:11:15,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:11:15,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:11:15,398 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:11:15,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:11:15,408 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:11:15,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:11:15,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1370684173, now seen corresponding path program 1 times [2022-12-13 13:11:15,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:11:15,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316821069] [2022-12-13 13:11:15,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:11:15,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:11:15,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:11:15,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:11:15,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:11:15,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316821069] [2022-12-13 13:11:15,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316821069] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:11:15,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:11:15,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:11:15,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548219723] [2022-12-13 13:11:15,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:11:15,433 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 13:11:15,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:11:15,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:11:15,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:11:15,434 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) [2022-12-13 13:11:15,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:11:15,515 INFO L93 Difference]: Finished difference Result 312 states and 392 transitions. [2022-12-13 13:11:15,515 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 312 states and 392 transitions. [2022-12-13 13:11:15,518 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 214 [2022-12-13 13:11:15,519 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 312 states to 312 states and 392 transitions. [2022-12-13 13:11:15,520 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 312 [2022-12-13 13:11:15,520 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 312 [2022-12-13 13:11:15,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 312 states and 392 transitions. [2022-12-13 13:11:15,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:11:15,522 INFO L218 hiAutomatonCegarLoop]: Abstraction has 312 states and 392 transitions. [2022-12-13 13:11:15,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states and 392 transitions. [2022-12-13 13:11:15,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2022-12-13 13:11:15,531 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) [2022-12-13 13:11:15,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 392 transitions. [2022-12-13 13:11:15,533 INFO L240 hiAutomatonCegarLoop]: Abstraction has 312 states and 392 transitions. [2022-12-13 13:11:15,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:11:15,534 INFO L428 stractBuchiCegarLoop]: Abstraction has 312 states and 392 transitions. [2022-12-13 13:11:15,534 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 13:11:15,534 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 312 states and 392 transitions. [2022-12-13 13:11:15,536 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 214 [2022-12-13 13:11:15,536 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 13:11:15,536 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 13:11:15,537 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:11:15,537 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] [2022-12-13 13:11:15,537 INFO L748 eck$LassoCheckResult]: Stem: 1476#$Ultimate##0 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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 1477#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~11#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~11#1;assume { :begin_inline_select_helpers } true; 1305#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1306#select_features_returnLabel#1 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; 1418#valid_product_returnLabel#1 main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~11#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 1419#L994 assume 0 != main_~tmp~11#1;assume { :begin_inline_setup } true; 1391#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1392#L361-2 [2022-12-13 13:11:15,538 INFO L750 eck$LassoCheckResult]: Loop: 1392#L361-2 assume !false; 1445#L362 assume test_~splverifierCounter~0#1 < 4; 1446#L363 test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 1453#L371 assume !(0 != test_~tmp~6#1); 1485#L371-2 test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 1387#L381 assume !(0 != test_~tmp___0~2#1); 1389#L381-2 test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 1405#L391 assume 0 != test_~tmp___2~0#1; 1410#L397-2 assume { :begin_inline_timeShift } true; 1374#L115 assume !(0 != ~pumpRunning~0); 1375#L115-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1502#L199 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret6#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 1503#L173-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 1319#L147-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 1320#L500-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 1482#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret18#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret18#1;havoc isHighWaterLevel_#t~ret18#1; 1473#L318-9 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1454#L318-11 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 1455#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret5#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret5#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1; 1422#L151-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1424#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 1427#L147-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1487#L173-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1435#L199-1 assume { :end_inline_processEnvironment } true; 1333#L122-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_#t~ret30#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~7#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 1334#getWaterLevel_returnLabel#1 __utac_acc__Specification4_spec__1_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~7#1 := __utac_acc__Specification4_spec__1_#t~ret29#1;havoc __utac_acc__Specification4_spec__1_#t~ret29#1; 1495#L528 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7#1); 1352#L528-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 1353#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1392#L361-2 [2022-12-13 13:11:15,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:11:15,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-12-13 13:11:15,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:11:15,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506708162] [2022-12-13 13:11:15,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:11:15,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:11:15,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:11:15,547 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:11:15,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:11:15,556 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:11:15,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:11:15,557 INFO L85 PathProgramCache]: Analyzing trace with hash -2054199498, now seen corresponding path program 1 times [2022-12-13 13:11:15,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:11:15,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296924784] [2022-12-13 13:11:15,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:11:15,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:11:15,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:11:15,567 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:11:15,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:11:15,577 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:11:15,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:11:15,577 INFO L85 PathProgramCache]: Analyzing trace with hash 2115033074, now seen corresponding path program 1 times [2022-12-13 13:11:15,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:11:15,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415112386] [2022-12-13 13:11:15,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:11:15,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:11:15,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:11:15,589 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:11:15,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:11:15,605 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:11:16,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:11:16,380 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:11:16,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:11:16,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 01:11:16 BoogieIcfgContainer [2022-12-13 13:11:16,425 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 13:11:16,426 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 13:11:16,426 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 13:11:16,426 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 13:11:16,427 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:11:14" (3/4) ... [2022-12-13 13:11:16,429 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-12-13 13:11:16,466 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc734661-3cf9-412c-8a94-976cb2f71a15/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 13:11:16,466 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 13:11:16,466 INFO L158 Benchmark]: Toolchain (without parser) took 2753.60ms. Allocated memory was 134.2MB in the beginning and 176.2MB in the end (delta: 41.9MB). Free memory was 101.5MB in the beginning and 101.6MB in the end (delta: -37.3kB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. [2022-12-13 13:11:16,467 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 134.2MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:11:16,467 INFO L158 Benchmark]: CACSL2BoogieTranslator took 297.50ms. Allocated memory is still 134.2MB. Free memory was 101.5MB in the beginning and 82.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 13:11:16,467 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.83ms. Allocated memory is still 134.2MB. Free memory was 82.7MB in the beginning and 78.0MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 13:11:16,467 INFO L158 Benchmark]: Boogie Preprocessor took 33.55ms. Allocated memory is still 134.2MB. Free memory was 78.0MB in the beginning and 74.3MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 13:11:16,468 INFO L158 Benchmark]: RCFGBuilder took 636.33ms. Allocated memory was 134.2MB in the beginning and 176.2MB in the end (delta: 41.9MB). Free memory was 74.3MB in the beginning and 124.8MB in the end (delta: -50.5MB). Peak memory consumption was 31.3MB. Max. memory is 16.1GB. [2022-12-13 13:11:16,468 INFO L158 Benchmark]: BuchiAutomizer took 1695.52ms. Allocated memory is still 176.2MB. Free memory was 124.8MB in the beginning and 104.7MB in the end (delta: 20.0MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2022-12-13 13:11:16,468 INFO L158 Benchmark]: Witness Printer took 39.96ms. Allocated memory is still 176.2MB. Free memory was 104.7MB in the beginning and 101.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:11:16,470 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 134.2MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 297.50ms. Allocated memory is still 134.2MB. Free memory was 101.5MB in the beginning and 82.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.83ms. Allocated memory is still 134.2MB. Free memory was 82.7MB in the beginning and 78.0MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.55ms. Allocated memory is still 134.2MB. Free memory was 78.0MB in the beginning and 74.3MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 636.33ms. Allocated memory was 134.2MB in the beginning and 176.2MB in the end (delta: 41.9MB). Free memory was 74.3MB in the beginning and 124.8MB in the end (delta: -50.5MB). Peak memory consumption was 31.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 1695.52ms. Allocated memory is still 176.2MB. Free memory was 124.8MB in the beginning and 104.7MB in the end (delta: 20.0MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. * Witness Printer took 39.96ms. Allocated memory is still 176.2MB. Free memory was 104.7MB in the beginning and 101.6MB in the end (delta: 3.1MB). 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 1.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. 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: 361]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L107] int pumpRunning = 0; [L108] int systemActive = 1; [L417] int waterLevel = 1; [L418] int methaneLevelCritical = 0; [L715] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L912] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L985] int retValue_acc ; [L986] int tmp ; [L990] FCALL select_helpers() [L991] FCALL select_features() [L992] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L992] RET, EXPR valid_product() [L992] tmp = valid_product() [L994] COND TRUE \read(tmp) [L996] FCALL setup() [L997] CALL runTest() [L979] CALL test() [L352] int splverifierCounter ; [L353] int tmp ; [L354] int tmp___0 ; [L355] int tmp___1 ; [L356] int tmp___2 ; [L359] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L361] COND TRUE 1 [L363] COND TRUE splverifierCounter < 4 [L369] tmp = __VERIFIER_nondet_int() [L371] COND FALSE !(\read(tmp)) [L379] tmp___0 = __VERIFIER_nondet_int() [L381] COND FALSE !(\read(tmp___0)) [L389] tmp___2 = __VERIFIER_nondet_int() [L391] COND TRUE \read(tmp___2) [L404] CALL timeShift() [L115] COND FALSE !(\read(pumpRunning)) [L122] COND TRUE \read(systemActive) [L124] CALL processEnvironment() [L196] int tmp ; [L199] COND FALSE !(\read(pumpRunning)) [L214] CALL processEnvironment__wrappee__methaneQuery() [L170] int tmp ; [L173] COND FALSE !(\read(pumpRunning)) [L188] CALL processEnvironment__wrappee__highWaterSensor() [L144] int tmp ; [L147] COND TRUE ! pumpRunning [L149] CALL, EXPR isHighWaterLevel() [L310] int retValue_acc ; [L311] int tmp ; [L312] int tmp___0 ; [L316] CALL, EXPR isHighWaterSensorDry() [L497] int retValue_acc ; [L500] COND TRUE waterLevel < 2 [L501] retValue_acc = 1 [L502] return (retValue_acc); [L316] RET, EXPR isHighWaterSensorDry() [L316] tmp = isHighWaterSensorDry() [L318] COND TRUE \read(tmp) [L319] tmp___0 = 0 [L323] retValue_acc = tmp___0 [L324] return (retValue_acc); [L149] RET, EXPR isHighWaterLevel() [L149] tmp = isHighWaterLevel() [L151] COND FALSE !(\read(tmp)) [L157] FCALL processEnvironment__wrappee__base() [L188] RET processEnvironment__wrappee__highWaterSensor() [L214] RET processEnvironment__wrappee__methaneQuery() [L124] RET processEnvironment() [L130] CALL __utac_acc__Specification4_spec__1() [L521] int tmp ; [L522] int tmp___0 ; [L526] CALL, EXPR getWaterLevel() [L488] int retValue_acc ; [L491] retValue_acc = waterLevel [L492] return (retValue_acc); [L526] RET, EXPR getWaterLevel() [L526] tmp = getWaterLevel() [L528] COND FALSE !(tmp == 0) [L130] RET __utac_acc__Specification4_spec__1() [L404] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 361]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L107] int pumpRunning = 0; [L108] int systemActive = 1; [L417] int waterLevel = 1; [L418] int methaneLevelCritical = 0; [L715] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L912] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L985] int retValue_acc ; [L986] int tmp ; [L990] FCALL select_helpers() [L991] FCALL select_features() [L992] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L992] RET, EXPR valid_product() [L992] tmp = valid_product() [L994] COND TRUE \read(tmp) [L996] FCALL setup() [L997] CALL runTest() [L979] CALL test() [L352] int splverifierCounter ; [L353] int tmp ; [L354] int tmp___0 ; [L355] int tmp___1 ; [L356] int tmp___2 ; [L359] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L361] COND TRUE 1 [L363] COND TRUE splverifierCounter < 4 [L369] tmp = __VERIFIER_nondet_int() [L371] COND FALSE !(\read(tmp)) [L379] tmp___0 = __VERIFIER_nondet_int() [L381] COND FALSE !(\read(tmp___0)) [L389] tmp___2 = __VERIFIER_nondet_int() [L391] COND TRUE \read(tmp___2) [L404] CALL timeShift() [L115] COND FALSE !(\read(pumpRunning)) [L122] COND TRUE \read(systemActive) [L124] CALL processEnvironment() [L196] int tmp ; [L199] COND FALSE !(\read(pumpRunning)) [L214] CALL processEnvironment__wrappee__methaneQuery() [L170] int tmp ; [L173] COND FALSE !(\read(pumpRunning)) [L188] CALL processEnvironment__wrappee__highWaterSensor() [L144] int tmp ; [L147] COND TRUE ! pumpRunning [L149] CALL, EXPR isHighWaterLevel() [L310] int retValue_acc ; [L311] int tmp ; [L312] int tmp___0 ; [L316] CALL, EXPR isHighWaterSensorDry() [L497] int retValue_acc ; [L500] COND TRUE waterLevel < 2 [L501] retValue_acc = 1 [L502] return (retValue_acc); [L316] RET, EXPR isHighWaterSensorDry() [L316] tmp = isHighWaterSensorDry() [L318] COND TRUE \read(tmp) [L319] tmp___0 = 0 [L323] retValue_acc = tmp___0 [L324] return (retValue_acc); [L149] RET, EXPR isHighWaterLevel() [L149] tmp = isHighWaterLevel() [L151] COND FALSE !(\read(tmp)) [L157] FCALL processEnvironment__wrappee__base() [L188] RET processEnvironment__wrappee__highWaterSensor() [L214] RET processEnvironment__wrappee__methaneQuery() [L124] RET processEnvironment() [L130] CALL __utac_acc__Specification4_spec__1() [L521] int tmp ; [L522] int tmp___0 ; [L526] CALL, EXPR getWaterLevel() [L488] int retValue_acc ; [L491] retValue_acc = waterLevel [L492] return (retValue_acc); [L526] RET, EXPR getWaterLevel() [L526] tmp = getWaterLevel() [L528] COND FALSE !(tmp == 0) [L130] RET __utac_acc__Specification4_spec__1() [L404] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-12-13 13:11:16,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc734661-3cf9-412c-8a94-976cb2f71a15/bin/uautomizer-uyxdKDjOR8/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)