./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef568b9-cd13-4ead-a3c1-38a7f9d61e75/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef568b9-cd13-4ead-a3c1-38a7f9d61e75/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef568b9-cd13-4ead-a3c1-38a7f9d61e75/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef568b9-cd13-4ead-a3c1-38a7f9d61e75/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef568b9-cd13-4ead-a3c1-38a7f9d61e75/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef568b9-cd13-4ead-a3c1-38a7f9d61e75/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 59d05b45c2855b02eb92cf6428285b3e4820a09d46d6a6d0a0748347de3adbb6 --- 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 [2022-12-14 05:26:25,903 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:26:25,905 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:26:25,918 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:26:25,919 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:26:25,919 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:26:25,920 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:26:25,921 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:26:25,922 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:26:25,923 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:26:25,924 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:26:25,925 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:26:25,925 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:26:25,925 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:26:25,926 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:26:25,927 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:26:25,928 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:26:25,928 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:26:25,929 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:26:25,932 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:26:25,934 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:26:25,935 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:26:25,936 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:26:25,936 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:26:25,938 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:26:25,939 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:26:25,939 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:26:25,940 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:26:25,940 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:26:25,941 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:26:25,942 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:26:25,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:26:25,943 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:26:25,944 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:26:25,945 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:26:25,945 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:26:25,945 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:26:25,945 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:26:25,945 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:26:25,946 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:26:25,946 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:26:25,947 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef568b9-cd13-4ead-a3c1-38a7f9d61e75/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 05:26:25,962 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:26:25,962 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:26:25,962 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:26:25,963 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:26:25,963 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:26:25,963 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:26:25,963 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:26:25,964 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:26:25,964 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:26:25,964 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 05:26:25,964 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:26:25,964 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:26:25,964 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 05:26:25,964 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 05:26:25,964 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:26:25,964 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 05:26:25,965 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 05:26:25,965 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 05:26:25,965 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:26:25,965 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 05:26:25,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 05:26:25,966 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 05:26:25,966 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:26:25,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 05:26:25,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:26:25,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 05:26:25,966 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 05:26:25,966 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 05:26:25,966 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:26:25,966 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 05:26:25,967 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:26:25,967 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:26:25,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:26:25,967 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:26:25,967 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 05:26:25,967 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:26:25,967 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 05:26:25,967 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 05:26:25,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 05:26:25,968 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 05:26:25,968 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:26:25,968 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_8ef568b9-cd13-4ead-a3c1-38a7f9d61e75/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef568b9-cd13-4ead-a3c1-38a7f9d61e75/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59d05b45c2855b02eb92cf6428285b3e4820a09d46d6a6d0a0748347de3adbb6 [2022-12-14 05:26:26,154 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:26:26,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:26:26,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:26:26,177 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:26:26,178 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:26:26,179 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef568b9-cd13-4ead-a3c1-38a7f9d61e75/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c [2022-12-14 05:26:28,744 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:26:28,925 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:26:28,925 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef568b9-cd13-4ead-a3c1-38a7f9d61e75/sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c [2022-12-14 05:26:28,935 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef568b9-cd13-4ead-a3c1-38a7f9d61e75/bin/utaipan-gh47qXpMRh/data/c9231064e/6441be296c6d4c01aaffe7e76120d68e/FLAG658ae36d5 [2022-12-14 05:26:28,945 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef568b9-cd13-4ead-a3c1-38a7f9d61e75/bin/utaipan-gh47qXpMRh/data/c9231064e/6441be296c6d4c01aaffe7e76120d68e [2022-12-14 05:26:28,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:26:28,948 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:26:28,949 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:26:28,949 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:26:28,952 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:26:28,953 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:26:28" (1/1) ... [2022-12-14 05:26:28,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48644f3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:26:28, skipping insertion in model container [2022-12-14 05:26:28,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:26:28" (1/1) ... [2022-12-14 05:26:28,959 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:26:28,996 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:26:29,154 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_8ef568b9-cd13-4ead-a3c1-38a7f9d61e75/sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c[6823,6836] [2022-12-14 05:26:29,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:26:29,206 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 05:26:29,223 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_8ef568b9-cd13-4ead-a3c1-38a7f9d61e75/sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c[6823,6836] [2022-12-14 05:26:29,248 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:26:29,260 INFO L208 MainTranslator]: Completed translation [2022-12-14 05:26:29,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:26:29 WrapperNode [2022-12-14 05:26:29,260 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:26:29,261 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 05:26:29,261 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 05:26:29,261 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 05:26:29,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:26:29" (1/1) ... [2022-12-14 05:26:29,275 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:26:29" (1/1) ... [2022-12-14 05:26:29,291 INFO L138 Inliner]: procedures = 60, calls = 108, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 228 [2022-12-14 05:26:29,291 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 05:26:29,292 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 05:26:29,292 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 05:26:29,292 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 05:26:29,299 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:26:29" (1/1) ... [2022-12-14 05:26:29,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:26:29" (1/1) ... [2022-12-14 05:26:29,301 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:26:29" (1/1) ... [2022-12-14 05:26:29,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:26:29" (1/1) ... [2022-12-14 05:26:29,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:26:29" (1/1) ... [2022-12-14 05:26:29,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:26:29" (1/1) ... [2022-12-14 05:26:29,312 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:26:29" (1/1) ... [2022-12-14 05:26:29,313 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:26:29" (1/1) ... [2022-12-14 05:26:29,316 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 05:26:29,317 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 05:26:29,317 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 05:26:29,317 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 05:26:29,318 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:26:29" (1/1) ... [2022-12-14 05:26:29,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:26:29,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef568b9-cd13-4ead-a3c1-38a7f9d61e75/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:26:29,345 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef568b9-cd13-4ead-a3c1-38a7f9d61e75/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 05:26:29,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef568b9-cd13-4ead-a3c1-38a7f9d61e75/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 05:26:29,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 05:26:29,374 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-12-14 05:26:29,374 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-12-14 05:26:29,374 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-12-14 05:26:29,375 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-12-14 05:26:29,375 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-12-14 05:26:29,375 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-12-14 05:26:29,375 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-12-14 05:26:29,375 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-12-14 05:26:29,375 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-12-14 05:26:29,375 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-12-14 05:26:29,375 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-12-14 05:26:29,375 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-12-14 05:26:29,375 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-12-14 05:26:29,375 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-12-14 05:26:29,375 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-12-14 05:26:29,376 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-12-14 05:26:29,376 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-12-14 05:26:29,376 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-12-14 05:26:29,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 05:26:29,376 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-12-14 05:26:29,376 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-12-14 05:26:29,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 05:26:29,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 05:26:29,442 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 05:26:29,444 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 05:26:29,679 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 05:26:29,746 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 05:26:29,746 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 05:26:29,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:26:29 BoogieIcfgContainer [2022-12-14 05:26:29,748 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 05:26:29,750 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 05:26:29,750 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 05:26:29,752 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 05:26:29,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:26:28" (1/3) ... [2022-12-14 05:26:29,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c97e8d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:26:29, skipping insertion in model container [2022-12-14 05:26:29,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:26:29" (2/3) ... [2022-12-14 05:26:29,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c97e8d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:26:29, skipping insertion in model container [2022-12-14 05:26:29,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:26:29" (3/3) ... [2022-12-14 05:26:29,755 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product64.cil.c [2022-12-14 05:26:29,768 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 05:26:29,769 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 05:26:29,804 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 05:26:29,809 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6687cb5f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 05:26:29,809 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 05:26:29,812 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 60 states have internal predecessors, (70), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) [2022-12-14 05:26:29,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 05:26:29,819 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:26:29,820 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:26:29,820 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:26:29,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:26:29,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1325563684, now seen corresponding path program 1 times [2022-12-14 05:26:29,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:26:29,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237419391] [2022-12-14 05:26:29,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:26:29,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:26:29,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:26:29,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:26:29,963 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:26:29,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237419391] [2022-12-14 05:26:29,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237419391] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:26:29,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:26:29,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:26:29,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492196583] [2022-12-14 05:26:29,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:26:29,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 05:26:29,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:26:29,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 05:26:29,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 05:26:29,992 INFO L87 Difference]: Start difference. First operand has 80 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 60 states have internal predecessors, (70), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 05:26:30,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:26:30,054 INFO L93 Difference]: Finished difference Result 158 states and 217 transitions. [2022-12-14 05:26:30,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 05:26:30,056 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-12-14 05:26:30,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:26:30,064 INFO L225 Difference]: With dead ends: 158 [2022-12-14 05:26:30,065 INFO L226 Difference]: Without dead ends: 75 [2022-12-14 05:26:30,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 05:26:30,070 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:26:30,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 86 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:26:30,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-12-14 05:26:30,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2022-12-14 05:26:30,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 46 states have (on average 1.3478260869565217) internal successors, (62), 56 states have internal predecessors, (62), 19 states have call successors, (19), 10 states have call predecessors, (19), 9 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2022-12-14 05:26:30,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 99 transitions. [2022-12-14 05:26:30,100 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 99 transitions. Word has length 17 [2022-12-14 05:26:30,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:26:30,100 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 99 transitions. [2022-12-14 05:26:30,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 05:26:30,101 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 99 transitions. [2022-12-14 05:26:30,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 05:26:30,102 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:26:30,102 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:26:30,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 05:26:30,103 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:26:30,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:26:30,103 INFO L85 PathProgramCache]: Analyzing trace with hash -204364323, now seen corresponding path program 1 times [2022-12-14 05:26:30,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:26:30,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248280657] [2022-12-14 05:26:30,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:26:30,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:26:30,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:26:30,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:26:30,193 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:26:30,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248280657] [2022-12-14 05:26:30,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248280657] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:26:30,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:26:30,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:26:30,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194773393] [2022-12-14 05:26:30,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:26:30,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:26:30,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:26:30,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:26:30,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:26:30,197 INFO L87 Difference]: Start difference. First operand 75 states and 99 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 05:26:30,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:26:30,239 INFO L93 Difference]: Finished difference Result 122 states and 160 transitions. [2022-12-14 05:26:30,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:26:30,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-12-14 05:26:30,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:26:30,241 INFO L225 Difference]: With dead ends: 122 [2022-12-14 05:26:30,241 INFO L226 Difference]: Without dead ends: 67 [2022-12-14 05:26:30,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:26:30,243 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 14 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:26:30,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 128 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:26:30,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-12-14 05:26:30,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-12-14 05:26:30,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 41 states have (on average 1.3658536585365855) internal successors, (56), 51 states have internal predecessors, (56), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 05:26:30,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 88 transitions. [2022-12-14 05:26:30,253 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 88 transitions. Word has length 18 [2022-12-14 05:26:30,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:26:30,254 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 88 transitions. [2022-12-14 05:26:30,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 05:26:30,254 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 88 transitions. [2022-12-14 05:26:30,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 05:26:30,255 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:26:30,255 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:26:30,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 05:26:30,256 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:26:30,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:26:30,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1022746079, now seen corresponding path program 1 times [2022-12-14 05:26:30,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:26:30,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178850988] [2022-12-14 05:26:30,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:26:30,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:26:30,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:26:30,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:26:30,356 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:26:30,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178850988] [2022-12-14 05:26:30,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178850988] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:26:30,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:26:30,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 05:26:30,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175913103] [2022-12-14 05:26:30,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:26:30,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 05:26:30,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:26:30,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 05:26:30,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 05:26:30,359 INFO L87 Difference]: Start difference. First operand 67 states and 88 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 05:26:30,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:26:30,436 INFO L93 Difference]: Finished difference Result 166 states and 218 transitions. [2022-12-14 05:26:30,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 05:26:30,437 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-12-14 05:26:30,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:26:30,438 INFO L225 Difference]: With dead ends: 166 [2022-12-14 05:26:30,438 INFO L226 Difference]: Without dead ends: 101 [2022-12-14 05:26:30,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:26:30,439 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 111 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:26:30,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 177 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:26:30,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-12-14 05:26:30,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 98. [2022-12-14 05:26:30,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 62 states have (on average 1.3709677419354838) internal successors, (85), 75 states have internal predecessors, (85), 21 states have call successors, (21), 14 states have call predecessors, (21), 14 states have return successors, (22), 15 states have call predecessors, (22), 21 states have call successors, (22) [2022-12-14 05:26:30,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 128 transitions. [2022-12-14 05:26:30,451 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 128 transitions. Word has length 21 [2022-12-14 05:26:30,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:26:30,451 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 128 transitions. [2022-12-14 05:26:30,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 05:26:30,452 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 128 transitions. [2022-12-14 05:26:30,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 05:26:30,452 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:26:30,453 INFO L195 NwaCegarLoop]: trace 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] [2022-12-14 05:26:30,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 05:26:30,453 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:26:30,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:26:30,453 INFO L85 PathProgramCache]: Analyzing trace with hash 937032683, now seen corresponding path program 1 times [2022-12-14 05:26:30,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:26:30,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191397582] [2022-12-14 05:26:30,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:26:30,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:26:30,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:26:30,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:26:30,547 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:26:30,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191397582] [2022-12-14 05:26:30,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191397582] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:26:30,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:26:30,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 05:26:30,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075498041] [2022-12-14 05:26:30,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:26:30,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 05:26:30,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:26:30,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 05:26:30,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 05:26:30,549 INFO L87 Difference]: Start difference. First operand 98 states and 128 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 05:26:30,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:26:30,692 INFO L93 Difference]: Finished difference Result 286 states and 379 transitions. [2022-12-14 05:26:30,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 05:26:30,693 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2022-12-14 05:26:30,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:26:30,695 INFO L225 Difference]: With dead ends: 286 [2022-12-14 05:26:30,696 INFO L226 Difference]: Without dead ends: 190 [2022-12-14 05:26:30,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-14 05:26:30,698 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 64 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:26:30,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 378 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:26:30,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-12-14 05:26:30,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 182. [2022-12-14 05:26:30,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 115 states have (on average 1.3478260869565217) internal successors, (155), 138 states have internal predecessors, (155), 40 states have call successors, (40), 26 states have call predecessors, (40), 26 states have return successors, (42), 28 states have call predecessors, (42), 40 states have call successors, (42) [2022-12-14 05:26:30,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 237 transitions. [2022-12-14 05:26:30,719 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 237 transitions. Word has length 24 [2022-12-14 05:26:30,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:26:30,727 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 237 transitions. [2022-12-14 05:26:30,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 05:26:30,728 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 237 transitions. [2022-12-14 05:26:30,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 05:26:30,729 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:26:30,729 INFO L195 NwaCegarLoop]: trace 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] [2022-12-14 05:26:30,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 05:26:30,729 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:26:30,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:26:30,730 INFO L85 PathProgramCache]: Analyzing trace with hash -776952694, now seen corresponding path program 1 times [2022-12-14 05:26:30,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:26:30,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755553475] [2022-12-14 05:26:30,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:26:30,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:26:30,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:26:30,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:26:30,767 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:26:30,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755553475] [2022-12-14 05:26:30,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755553475] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:26:30,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:26:30,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:26:30,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759536727] [2022-12-14 05:26:30,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:26:30,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:26:30,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:26:30,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:26:30,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:26:30,769 INFO L87 Difference]: Start difference. First operand 182 states and 237 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 05:26:30,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:26:30,833 INFO L93 Difference]: Finished difference Result 278 states and 369 transitions. [2022-12-14 05:26:30,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:26:30,833 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2022-12-14 05:26:30,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:26:30,837 INFO L225 Difference]: With dead ends: 278 [2022-12-14 05:26:30,837 INFO L226 Difference]: Without dead ends: 276 [2022-12-14 05:26:30,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:26:30,838 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 63 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:26:30,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 156 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:26:30,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2022-12-14 05:26:30,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2022-12-14 05:26:30,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 174 states have (on average 1.3505747126436782) internal successors, (235), 209 states have internal predecessors, (235), 61 states have call successors, (61), 40 states have call predecessors, (61), 40 states have return successors, (70), 43 states have call predecessors, (70), 61 states have call successors, (70) [2022-12-14 05:26:30,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 366 transitions. [2022-12-14 05:26:30,862 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 366 transitions. Word has length 27 [2022-12-14 05:26:30,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:26:30,862 INFO L495 AbstractCegarLoop]: Abstraction has 276 states and 366 transitions. [2022-12-14 05:26:30,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 05:26:30,863 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 366 transitions. [2022-12-14 05:26:30,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-12-14 05:26:30,865 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:26:30,865 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:26:30,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 05:26:30,865 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:26:30,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:26:30,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1577838211, now seen corresponding path program 1 times [2022-12-14 05:26:30,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:26:30,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561409613] [2022-12-14 05:26:30,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:26:30,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:26:30,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:26:30,979 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 05:26:30,980 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:26:30,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561409613] [2022-12-14 05:26:30,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561409613] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:26:30,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:26:30,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 05:26:30,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662476667] [2022-12-14 05:26:30,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:26:30,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 05:26:30,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:26:30,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 05:26:30,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-14 05:26:30,982 INFO L87 Difference]: Start difference. First operand 276 states and 366 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-12-14 05:26:31,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:26:31,249 INFO L93 Difference]: Finished difference Result 735 states and 991 transitions. [2022-12-14 05:26:31,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 05:26:31,250 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 48 [2022-12-14 05:26:31,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:26:31,252 INFO L225 Difference]: With dead ends: 735 [2022-12-14 05:26:31,252 INFO L226 Difference]: Without dead ends: 461 [2022-12-14 05:26:31,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-14 05:26:31,254 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 161 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 05:26:31,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 189 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 05:26:31,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2022-12-14 05:26:31,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 439. [2022-12-14 05:26:31,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 287 states have (on average 1.2334494773519165) internal successors, (354), 313 states have internal predecessors, (354), 75 states have call successors, (75), 63 states have call predecessors, (75), 76 states have return successors, (112), 79 states have call predecessors, (112), 75 states have call successors, (112) [2022-12-14 05:26:31,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 541 transitions. [2022-12-14 05:26:31,301 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 541 transitions. Word has length 48 [2022-12-14 05:26:31,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:26:31,302 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 541 transitions. [2022-12-14 05:26:31,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-12-14 05:26:31,302 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 541 transitions. [2022-12-14 05:26:31,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-14 05:26:31,304 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:26:31,305 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2022-12-14 05:26:31,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 05:26:31,305 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:26:31,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:26:31,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1474558910, now seen corresponding path program 1 times [2022-12-14 05:26:31,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:26:31,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077419102] [2022-12-14 05:26:31,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:26:31,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:26:31,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:26:31,627 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 16 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 05:26:31,627 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:26:31,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077419102] [2022-12-14 05:26:31,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077419102] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:26:31,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298122009] [2022-12-14 05:26:31,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:26:31,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:26:31,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef568b9-cd13-4ead-a3c1-38a7f9d61e75/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:26:31,629 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef568b9-cd13-4ead-a3c1-38a7f9d61e75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:26:31,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef568b9-cd13-4ead-a3c1-38a7f9d61e75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 05:26:31,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:26:31,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 31 conjunts are in the unsatisfiable core [2022-12-14 05:26:31,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:26:32,062 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 05:26:32,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:26:32,626 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 05:26:32,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1298122009] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:26:32,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1345353285] [2022-12-14 05:26:32,643 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2022-12-14 05:26:32,643 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:26:32,645 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:26:32,650 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:26:32,650 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:26:37,243 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 50 for LOIs [2022-12-14 05:26:37,457 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 44 for LOIs [2022-12-14 05:26:37,536 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 44 for LOIs [2022-12-14 05:26:37,658 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 43 for LOIs [2022-12-14 05:26:37,691 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 43 for LOIs [2022-12-14 05:26:37,695 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 46 for LOIs [2022-12-14 05:26:37,701 INFO L197 IcfgInterpreter]: Interpreting procedure deactivatePump with input of size 29 for LOIs [2022-12-14 05:26:37,702 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:26:44,264 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4988#(and (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~3#1|) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~7#1| ~methaneLevelCritical~0) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification2_spec__2_~tmp___0~3#1|) (<= 0 |old(~pumpRunning~0)|) (<= ~pumpRunning~0 1) (<= |old(~pumpRunning~0)| 1) (= ~head~0.offset 0) (= 1 ~systemActive~0) (<= 0 ~methAndRunningLastTime~0) (not (= |timeShift___utac_acc__Specification2_spec__2_~tmp~7#1| 0)) (<= |timeShift___utac_acc__Specification2_spec__2_~tmp~7#1| 1) (not (= |timeShift___utac_acc__Specification2_spec__2_~tmp___0~3#1| 0)) (<= 0 |old(~methAndRunningLastTime~0)|) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~3#1|) (<= |old(~methAndRunningLastTime~0)| 1) (<= 0 ~methaneLevelCritical~0) (<= 0 ~pumpRunning~0) (= ~head~0.base 0) (= |#NULL.offset| 0) (not (= ~methAndRunningLastTime~0 0)) (<= ~methAndRunningLastTime~0 1) (<= 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-12-14 05:26:44,264 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 05:26:44,265 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:26:44,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 11] total 30 [2022-12-14 05:26:44,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066349729] [2022-12-14 05:26:44,265 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 05:26:44,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-14 05:26:44,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:26:44,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-14 05:26:44,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=403, Invalid=3887, Unknown=0, NotChecked=0, Total=4290 [2022-12-14 05:26:44,268 INFO L87 Difference]: Start difference. First operand 439 states and 541 transitions. Second operand has 30 states, 21 states have (on average 4.857142857142857) internal successors, (102), 21 states have internal predecessors, (102), 9 states have call successors, (24), 6 states have call predecessors, (24), 16 states have return successors, (28), 15 states have call predecessors, (28), 9 states have call successors, (28) [2022-12-14 05:26:47,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:26:47,674 INFO L93 Difference]: Finished difference Result 1789 states and 2633 transitions. [2022-12-14 05:26:47,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-12-14 05:26:47,675 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 21 states have (on average 4.857142857142857) internal successors, (102), 21 states have internal predecessors, (102), 9 states have call successors, (24), 6 states have call predecessors, (24), 16 states have return successors, (28), 15 states have call predecessors, (28), 9 states have call successors, (28) Word has length 79 [2022-12-14 05:26:47,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:26:47,682 INFO L225 Difference]: With dead ends: 1789 [2022-12-14 05:26:47,682 INFO L226 Difference]: Without dead ends: 1297 [2022-12-14 05:26:47,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 197 SyntacticMatches, 9 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6397 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=1512, Invalid=15000, Unknown=0, NotChecked=0, Total=16512 [2022-12-14 05:26:47,686 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 1471 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 3360 mSolverCounterSat, 1187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1478 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 4547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1187 IncrementalHoareTripleChecker+Valid, 3360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-14 05:26:47,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1478 Valid, 860 Invalid, 4547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1187 Valid, 3360 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-14 05:26:47,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1297 states. [2022-12-14 05:26:47,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1297 to 861. [2022-12-14 05:26:47,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 567 states have (on average 1.2116402116402116) internal successors, (687), 613 states have internal predecessors, (687), 145 states have call successors, (145), 123 states have call predecessors, (145), 148 states have return successors, (223), 153 states have call predecessors, (223), 145 states have call successors, (223) [2022-12-14 05:26:47,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1055 transitions. [2022-12-14 05:26:47,754 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1055 transitions. Word has length 79 [2022-12-14 05:26:47,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:26:47,754 INFO L495 AbstractCegarLoop]: Abstraction has 861 states and 1055 transitions. [2022-12-14 05:26:47,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 21 states have (on average 4.857142857142857) internal successors, (102), 21 states have internal predecessors, (102), 9 states have call successors, (24), 6 states have call predecessors, (24), 16 states have return successors, (28), 15 states have call predecessors, (28), 9 states have call successors, (28) [2022-12-14 05:26:47,754 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1055 transitions. [2022-12-14 05:26:47,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-12-14 05:26:47,756 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:26:47,756 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:26:47,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef568b9-cd13-4ead-a3c1-38a7f9d61e75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 05:26:47,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef568b9-cd13-4ead-a3c1-38a7f9d61e75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-14 05:26:47,957 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:26:47,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:26:47,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1810613424, now seen corresponding path program 1 times [2022-12-14 05:26:47,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:26:47,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691160949] [2022-12-14 05:26:47,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:26:47,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:26:47,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:26:47,992 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-12-14 05:26:47,992 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:26:47,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691160949] [2022-12-14 05:26:47,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691160949] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:26:47,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:26:47,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:26:47,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675774638] [2022-12-14 05:26:47,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:26:47,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:26:47,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:26:47,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:26:47,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:26:47,994 INFO L87 Difference]: Start difference. First operand 861 states and 1055 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-14 05:26:48,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:26:48,106 INFO L93 Difference]: Finished difference Result 1730 states and 2118 transitions. [2022-12-14 05:26:48,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:26:48,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 89 [2022-12-14 05:26:48,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:26:48,109 INFO L225 Difference]: With dead ends: 1730 [2022-12-14 05:26:48,110 INFO L226 Difference]: Without dead ends: 871 [2022-12-14 05:26:48,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:26:48,112 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 29 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:26:48,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 159 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:26:48,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2022-12-14 05:26:48,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 842. [2022-12-14 05:26:48,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 553 states have (on average 1.2007233273056057) internal successors, (664), 598 states have internal predecessors, (664), 141 states have call successors, (141), 119 states have call predecessors, (141), 147 states have return successors, (197), 152 states have call predecessors, (197), 141 states have call successors, (197) [2022-12-14 05:26:48,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1002 transitions. [2022-12-14 05:26:48,159 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1002 transitions. Word has length 89 [2022-12-14 05:26:48,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:26:48,160 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1002 transitions. [2022-12-14 05:26:48,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-14 05:26:48,160 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1002 transitions. [2022-12-14 05:26:48,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-14 05:26:48,161 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:26:48,162 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:26:48,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 05:26:48,162 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:26:48,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:26:48,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1630691852, now seen corresponding path program 1 times [2022-12-14 05:26:48,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:26:48,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610226941] [2022-12-14 05:26:48,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:26:48,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:26:48,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:26:48,379 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-14 05:26:48,380 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:26:48,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610226941] [2022-12-14 05:26:48,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610226941] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:26:48,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858740003] [2022-12-14 05:26:48,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:26:48,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:26:48,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef568b9-cd13-4ead-a3c1-38a7f9d61e75/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:26:48,381 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef568b9-cd13-4ead-a3c1-38a7f9d61e75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:26:48,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef568b9-cd13-4ead-a3c1-38a7f9d61e75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 05:26:48,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:26:48,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 35 conjunts are in the unsatisfiable core [2022-12-14 05:26:48,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:26:48,607 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 40 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 05:26:48,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:26:48,927 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 27 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 05:26:48,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858740003] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:26:48,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1417054894] [2022-12-14 05:26:48,930 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2022-12-14 05:26:48,930 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:26:48,930 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:26:48,931 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:26:48,931 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:26:52,978 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 52 for LOIs [2022-12-14 05:26:53,105 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 30 for LOIs [2022-12-14 05:26:53,146 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 30 for LOIs [2022-12-14 05:26:53,217 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 29 for LOIs [2022-12-14 05:26:53,235 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 46 for LOIs [2022-12-14 05:26:53,239 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 53 for LOIs [2022-12-14 05:26:53,245 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:26:58,197 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '13446#(and (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~3#1|) (<= 0 |#NULL.base|) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~7#1| ~methaneLevelCritical~0) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification2_spec__2_~tmp___0~3#1|) (<= 0 |old(~pumpRunning~0)|) (<= ~pumpRunning~0 1) (= ~head~0.offset 0) (<= 1 ~systemActive~0) (<= 2 ~waterLevel~0) (<= |#NULL.offset| 0) (<= 0 ~methAndRunningLastTime~0) (<= |old(~pumpRunning~0)| 0) (not (= |timeShift___utac_acc__Specification2_spec__2_~tmp~7#1| 0)) (<= |timeShift___utac_acc__Specification2_spec__2_~tmp~7#1| 1) (not (= |timeShift___utac_acc__Specification2_spec__2_~tmp___0~3#1| 0)) (<= 2 |old(~waterLevel~0)|) (<= 0 |old(~methAndRunningLastTime~0)|) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~3#1|) (<= |old(~methAndRunningLastTime~0)| 1) (<= 0 ~head~0.base) (<= |#NULL.base| 0) (<= 0 ~methaneLevelCritical~0) (<= 0 ~pumpRunning~0) (<= ~head~0.base 0) (<= 0 |#NULL.offset|) (not (= ~methAndRunningLastTime~0 0)) (<= ~methAndRunningLastTime~0 1) (<= 0 |#StackHeapBarrier|) (<= ~systemActive~0 1) (= ~cleanupTimeShifts~0 4))' at error location [2022-12-14 05:26:58,197 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 05:26:58,197 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:26:58,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 13] total 28 [2022-12-14 05:26:58,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019351301] [2022-12-14 05:26:58,198 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 05:26:58,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-12-14 05:26:58,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:26:58,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-12-14 05:26:58,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=356, Invalid=3066, Unknown=0, NotChecked=0, Total=3422 [2022-12-14 05:26:58,199 INFO L87 Difference]: Start difference. First operand 842 states and 1002 transitions. Second operand has 28 states, 22 states have (on average 5.0) internal successors, (110), 21 states have internal predecessors, (110), 10 states have call successors, (24), 6 states have call predecessors, (24), 13 states have return successors, (26), 15 states have call predecessors, (26), 10 states have call successors, (26) [2022-12-14 05:27:03,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:27:03,917 INFO L93 Difference]: Finished difference Result 3194 states and 4091 transitions. [2022-12-14 05:27:03,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2022-12-14 05:27:03,918 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 22 states have (on average 5.0) internal successors, (110), 21 states have internal predecessors, (110), 10 states have call successors, (24), 6 states have call predecessors, (24), 13 states have return successors, (26), 15 states have call predecessors, (26), 10 states have call successors, (26) Word has length 86 [2022-12-14 05:27:03,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:27:03,924 INFO L225 Difference]: With dead ends: 3194 [2022-12-14 05:27:03,924 INFO L226 Difference]: Without dead ends: 2399 [2022-12-14 05:27:03,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 446 GetRequests, 243 SyntacticMatches, 8 SemanticMatches, 195 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15610 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=3098, Invalid=35514, Unknown=0, NotChecked=0, Total=38612 [2022-12-14 05:27:03,933 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 1432 mSDsluCounter, 1271 mSDsCounter, 0 mSdLazyCounter, 4442 mSolverCounterSat, 1027 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1435 SdHoareTripleChecker+Valid, 1412 SdHoareTripleChecker+Invalid, 5469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1027 IncrementalHoareTripleChecker+Valid, 4442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-14 05:27:03,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1435 Valid, 1412 Invalid, 5469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1027 Valid, 4442 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-14 05:27:03,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2399 states. [2022-12-14 05:27:04,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2399 to 1853. [2022-12-14 05:27:04,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1853 states, 1244 states have (on average 1.1945337620578778) internal successors, (1486), 1330 states have internal predecessors, (1486), 304 states have call successors, (304), 267 states have call predecessors, (304), 304 states have return successors, (407), 307 states have call predecessors, (407), 304 states have call successors, (407) [2022-12-14 05:27:04,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1853 states to 1853 states and 2197 transitions. [2022-12-14 05:27:04,069 INFO L78 Accepts]: Start accepts. Automaton has 1853 states and 2197 transitions. Word has length 86 [2022-12-14 05:27:04,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:27:04,070 INFO L495 AbstractCegarLoop]: Abstraction has 1853 states and 2197 transitions. [2022-12-14 05:27:04,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 22 states have (on average 5.0) internal successors, (110), 21 states have internal predecessors, (110), 10 states have call successors, (24), 6 states have call predecessors, (24), 13 states have return successors, (26), 15 states have call predecessors, (26), 10 states have call successors, (26) [2022-12-14 05:27:04,070 INFO L276 IsEmpty]: Start isEmpty. Operand 1853 states and 2197 transitions. [2022-12-14 05:27:04,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-12-14 05:27:04,074 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:27:04,074 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-14 05:27:04,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef568b9-cd13-4ead-a3c1-38a7f9d61e75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 05:27:04,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef568b9-cd13-4ead-a3c1-38a7f9d61e75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:27:04,274 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:27:04,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:27:04,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1220851928, now seen corresponding path program 1 times [2022-12-14 05:27:04,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:27:04,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761918456] [2022-12-14 05:27:04,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:27:04,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:27:04,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:27:04,419 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 49 proven. 6 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-12-14 05:27:04,420 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:27:04,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761918456] [2022-12-14 05:27:04,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761918456] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:27:04,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493890226] [2022-12-14 05:27:04,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:27:04,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:27:04,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef568b9-cd13-4ead-a3c1-38a7f9d61e75/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:27:04,421 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef568b9-cd13-4ead-a3c1-38a7f9d61e75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:27:04,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef568b9-cd13-4ead-a3c1-38a7f9d61e75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 05:27:04,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:27:04,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 29 conjunts are in the unsatisfiable core [2022-12-14 05:27:04,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:27:04,610 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-12-14 05:27:04,610 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:27:04,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493890226] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:27:04,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 05:27:04,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10] total 18 [2022-12-14 05:27:04,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070434225] [2022-12-14 05:27:04,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:27:04,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 05:27:04,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:27:04,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 05:27:04,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-12-14 05:27:04,612 INFO L87 Difference]: Start difference. First operand 1853 states and 2197 transitions. Second operand has 11 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 3 states have call successors, (19), 3 states have call predecessors, (19), 6 states have return successors, (20), 6 states have call predecessors, (20), 3 states have call successors, (20) [2022-12-14 05:27:05,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:27:05,080 INFO L93 Difference]: Finished difference Result 3263 states and 3900 transitions. [2022-12-14 05:27:05,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-14 05:27:05,081 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 3 states have call successors, (19), 3 states have call predecessors, (19), 6 states have return successors, (20), 6 states have call predecessors, (20), 3 states have call successors, (20) Word has length 136 [2022-12-14 05:27:05,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:27:05,081 INFO L225 Difference]: With dead ends: 3263 [2022-12-14 05:27:05,081 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 05:27:05,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=571, Unknown=0, NotChecked=0, Total=650 [2022-12-14 05:27:05,086 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 55 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 05:27:05,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 1022 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 05:27:05,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 05:27:05,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 05:27:05,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-12-14 05:27:05,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 05:27:05,087 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 136 [2022-12-14 05:27:05,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:27:05,087 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 05:27:05,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 3 states have call successors, (19), 3 states have call predecessors, (19), 6 states have return successors, (20), 6 states have call predecessors, (20), 3 states have call successors, (20) [2022-12-14 05:27:05,087 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 05:27:05,087 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 05:27:05,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 05:27:05,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef568b9-cd13-4ead-a3c1-38a7f9d61e75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 05:27:05,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef568b9-cd13-4ead-a3c1-38a7f9d61e75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:27:05,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 05:27:16,926 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 238 245) no Hoare annotation was computed. [2022-12-14 05:27:16,927 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 238 245) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 0 ~systemActive~0)) [2022-12-14 05:27:16,927 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 128 134) no Hoare annotation was computed. [2022-12-14 05:27:16,927 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 128 134) the Hoare annotation is: true [2022-12-14 05:27:16,927 INFO L895 garLoopResultBuilder]: At program point L176(line 176) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0) (or .cse1 (not (= ~methaneLevelCritical~0 0)) .cse0) (or .cse1 .cse0 (not (= ~methAndRunningLastTime~0 0))))) [2022-12-14 05:27:16,927 INFO L895 garLoopResultBuilder]: At program point L172(line 172) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0) (or .cse1 (not (= ~methaneLevelCritical~0 0)) .cse0) (or .cse1 .cse0 (not (= ~methAndRunningLastTime~0 0))))) [2022-12-14 05:27:16,927 INFO L899 garLoopResultBuilder]: For program point L170(lines 170 178) no Hoare annotation was computed. [2022-12-14 05:27:16,927 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 162 186) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0) (or .cse1 (not (= ~methaneLevelCritical~0 0)) .cse0) (or .cse1 .cse0 (not (= ~methAndRunningLastTime~0 0))))) [2022-12-14 05:27:16,928 INFO L895 garLoopResultBuilder]: At program point L166(lines 166 183) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0) (or .cse1 (not (= ~methaneLevelCritical~0 0)) .cse0) (or .cse1 .cse0 (not (= ~methAndRunningLastTime~0 0))))) [2022-12-14 05:27:16,928 INFO L895 garLoopResultBuilder]: At program point L181(line 181) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (not (= ~methAndRunningLastTime~0 0))) (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or (not .cse0) (= ~pumpRunning~0 0) .cse1))) [2022-12-14 05:27:16,928 INFO L899 garLoopResultBuilder]: For program point L181-1(lines 162 186) no Hoare annotation was computed. [2022-12-14 05:27:16,928 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 162 186) no Hoare annotation was computed. [2022-12-14 05:27:16,928 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 511 522) the Hoare annotation is: (let ((.cse0 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (.cse1 (= 0 ~systemActive~0)) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or (= |old(~methaneLevelCritical~0)| 0) .cse0 .cse1) (or (not (= ~pumpRunning~0 0)) .cse0 .cse2) (or .cse0 .cse1 .cse2))) [2022-12-14 05:27:16,928 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 511 522) no Hoare annotation was computed. [2022-12-14 05:27:16,928 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 589 618) no Hoare annotation was computed. [2022-12-14 05:27:16,928 INFO L899 garLoopResultBuilder]: For program point L603(lines 603 607) no Hoare annotation was computed. [2022-12-14 05:27:16,929 INFO L902 garLoopResultBuilder]: At program point L603-1(lines 603 607) the Hoare annotation is: true [2022-12-14 05:27:16,929 INFO L902 garLoopResultBuilder]: At program point L599-2(lines 599 613) the Hoare annotation is: true [2022-12-14 05:27:16,929 INFO L902 garLoopResultBuilder]: At program point L595(line 595) the Hoare annotation is: true [2022-12-14 05:27:16,929 INFO L899 garLoopResultBuilder]: For program point L595-1(line 595) no Hoare annotation was computed. [2022-12-14 05:27:16,929 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 589 618) the Hoare annotation is: true [2022-12-14 05:27:16,929 INFO L902 garLoopResultBuilder]: At program point L614(lines 589 618) the Hoare annotation is: true [2022-12-14 05:27:16,929 INFO L899 garLoopResultBuilder]: For program point L610(line 610) no Hoare annotation was computed. [2022-12-14 05:27:16,929 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 523 531) the Hoare annotation is: true [2022-12-14 05:27:16,929 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 523 531) no Hoare annotation was computed. [2022-12-14 05:27:16,929 INFO L899 garLoopResultBuilder]: For program point L192(lines 192 209) no Hoare annotation was computed. [2022-12-14 05:27:16,929 INFO L895 garLoopResultBuilder]: At program point L440(line 440) the Hoare annotation is: (and (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2022-12-14 05:27:16,930 INFO L899 garLoopResultBuilder]: For program point L115-1(lines 115 121) no Hoare annotation was computed. [2022-12-14 05:27:16,930 INFO L899 garLoopResultBuilder]: For program point L466(lines 466 476) no Hoare annotation was computed. [2022-12-14 05:27:16,930 INFO L895 garLoopResultBuilder]: At program point L462(lines 462 479) the Hoare annotation is: (let ((.cse15 (= ~methaneLevelCritical~0 0))) (let ((.cse12 (= ~pumpRunning~0 0)) (.cse3 (not .cse15))) (let ((.cse6 (= 0 ~systemActive~0)) (.cse17 (<= 2 ~waterLevel~0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (and .cse12 .cse3)) (.cse8 (and .cse15 (= ~pumpRunning~0 1))) (.cse13 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse11 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~7#1| ~methaneLevelCritical~0)) (.cse18 (not (= |old(~waterLevel~0)| 1)))) (let ((.cse2 (= ~methAndRunningLastTime~0 0)) (.cse5 (and .cse13 .cse11 .cse12 (or .cse18 (<= ~waterLevel~0 1)))) (.cse4 (and .cse11 .cse17 (or .cse0 .cse18) (or .cse13 .cse15) (or .cse7 .cse8))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse9 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse10 (= ~waterLevel~0 1)) (.cse16 (not .cse6)) (.cse14 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 .cse4 .cse5 .cse6) (or .cse1 .cse2 (not (= |old(~pumpRunning~0)| 1)) .cse6) (or .cse0 .cse1 .cse7 .cse8 .cse9 .cse10) (or (and .cse0 .cse11 .cse12) (and .cse13 .cse0 .cse11) .cse4 .cse5 .cse6) (or .cse0 .cse1 .cse4 .cse9 .cse14) (or .cse15 (and .cse13 .cse12) (and .cse12 (not (= |timeShift_processEnvironment_~tmp~2#1| 0))) .cse6) (or .cse0 .cse1 .cse15 .cse9 .cse10) (or .cse0 .cse16 (and .cse11 .cse12 (or .cse9 .cse10))) (or .cse0 .cse17 .cse16 .cse14)))))) [2022-12-14 05:27:16,931 INFO L895 garLoopResultBuilder]: At program point L462-1(lines 454 482) the Hoare annotation is: (let ((.cse10 (= 0 ~systemActive~0))) (let ((.cse13 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~7#1| ~methaneLevelCritical~0)) (.cse8 (= ~methAndRunningLastTime~0 0)) (.cse15 (<= 2 ~waterLevel~0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse14 (not (= |old(~waterLevel~0)| 1))) (.cse6 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse7 (= ~pumpRunning~0 0)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse9 (not .cse10))) (let ((.cse1 (and .cse13 .cse8 (or .cse5 (not (= |processEnvironment__wrappee__highWaterSensor_activatePump_#t~ret8#1| 0))) .cse15 (or .cse5 (not (= |isMethaneAlarm_#t~ret9| 0))) (or .cse5 (not (= |isMethaneAlarm_#res| 0))) (or .cse0 .cse14) (or .cse6 .cse5) (or (and .cse7 (not .cse5)) (and .cse5 (= ~pumpRunning~0 1))) (or .cse5 (not (= |isMethaneLevelCritical_#res| 0))) .cse9)) (.cse11 (= |timeShift___utac_acc__Specification2_spec__2_~tmp___0~3#1| 0)) (.cse2 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (= ~waterLevel~0 1)) (.cse12 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 (and .cse6 .cse7 .cse8 .cse9) .cse10 (and .cse7 (not (= |timeShift_processEnvironment_~tmp~2#1| 0)) .cse11)) (or .cse0 .cse1 .cse2 .cse3 .cse12) (or .cse0 (and .cse13 .cse7 .cse8 (or .cse3 .cse4)) .cse9) (or .cse1 (and .cse0 .cse13 .cse7 .cse8) (and .cse6 .cse0 .cse13 .cse8) (and .cse6 .cse13 .cse7 .cse8 (or .cse14 (<= ~waterLevel~0 1)) .cse9) .cse10) (or .cse0 .cse5 .cse11) (or .cse0 .cse2 .cse5 .cse3 .cse4) (or .cse0 .cse15 .cse9 .cse12))))) [2022-12-14 05:27:16,931 INFO L895 garLoopResultBuilder]: At program point L202(line 202) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) (not (= |old(~pumpRunning~0)| 0)) (or (= ~methaneLevelCritical~0 0) .cse0) (or (not (= |old(~methAndRunningLastTime~0)| 0)) (= ~methAndRunningLastTime~0 0) .cse0))) [2022-12-14 05:27:16,931 INFO L895 garLoopResultBuilder]: At program point L198(line 198) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (not (= |old(~pumpRunning~0)| 0)) (or (not (= |old(~methAndRunningLastTime~0)| 0)) (= ~methAndRunningLastTime~0 0) .cse0) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= |timeShift_processEnvironment_~tmp~2#1| 0))) .cse0))) [2022-12-14 05:27:16,931 INFO L895 garLoopResultBuilder]: At program point L194(line 194) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) (not (= |old(~pumpRunning~0)| 0)) (or (not (= |old(~methAndRunningLastTime~0)| 0)) (= ~methAndRunningLastTime~0 0) .cse0))) [2022-12-14 05:27:16,931 INFO L899 garLoopResultBuilder]: For program point L194-1(line 194) no Hoare annotation was computed. [2022-12-14 05:27:16,931 INFO L899 garLoopResultBuilder]: For program point L467(lines 467 473) no Hoare annotation was computed. [2022-12-14 05:27:16,931 INFO L895 garLoopResultBuilder]: At program point L207(line 207) the Hoare annotation is: (let ((.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (= 0 ~systemActive~0))) (and (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) (or (not (= |old(~waterLevel~0)| 1)) (<= ~waterLevel~0 1))) .cse0) (or .cse1 .cse2 .cse0 (not (<= 2 |old(~waterLevel~0)|))) (or .cse1 (and (= ~methAndRunningLastTime~0 0) (or .cse2 (= ~waterLevel~0 1))) .cse0) (or (not (= |old(~pumpRunning~0)| 0)) (not .cse0)))) [2022-12-14 05:27:16,932 INFO L895 garLoopResultBuilder]: At program point L207-1(lines 188 212) the Hoare annotation is: (let ((.cse9 (= ~methAndRunningLastTime~0 0)) (.cse0 (= ~pumpRunning~0 0)) (.cse11 (= ~methaneLevelCritical~0 0))) (let ((.cse5 (and .cse0 (not .cse11))) (.cse6 (and .cse11 (= ~pumpRunning~0 1))) (.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse10 (and .cse9 (or (= |old(~waterLevel~0)| ~waterLevel~0) (= ~waterLevel~0 1)))) (.cse8 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse4 (<= 2 ~waterLevel~0)) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (= 0 ~systemActive~0))) (and (let ((.cse2 (not (= |old(~waterLevel~0)| 1)))) (or (and .cse0 (or .cse1 .cse2 (<= ~waterLevel~0 1))) (and .cse3 .cse1) (and .cse4 (or .cse1 .cse2) (or .cse5 .cse6)) .cse7)) (or .cse8 .cse9 .cse7) (or .cse1 .cse8 .cse10 .cse5 .cse6) (or .cse11 (and .cse3 .cse0) (and .cse0 (not (= |timeShift_processEnvironment_~tmp~2#1| 0))) .cse7) (or .cse1 .cse8 .cse10 .cse11) (or .cse1 .cse8 .cse4 (not (<= 2 |old(~waterLevel~0)|))) (or .cse1 (not .cse7))))) [2022-12-14 05:27:16,932 INFO L899 garLoopResultBuilder]: For program point L108-1(lines 107 126) no Hoare annotation was computed. [2022-12-14 05:27:16,932 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 104 127) the Hoare annotation is: (let ((.cse3 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse5 (not (<= 2 |old(~waterLevel~0)|))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (= ~methAndRunningLastTime~0 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (or .cse3 (= ~waterLevel~0 1))) (.cse4 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse3 (not .cse4) .cse5) (or .cse1 .cse3 .cse4 .cse5) (or .cse1 .cse2 .cse4) (or .cse0 (and (= ~pumpRunning~0 0) .cse6)) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse6) .cse4)))) [2022-12-14 05:27:16,932 INFO L895 garLoopResultBuilder]: At program point L460(line 460) the Hoare annotation is: (let ((.cse8 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse13 (= ~methAndRunningLastTime~0 0)) (.cse11 (or .cse8 (= ~waterLevel~0 1))) (.cse0 (= ~pumpRunning~0 0)) (.cse15 (= ~methaneLevelCritical~0 0)) (.cse7 (= 0 ~systemActive~0))) (let ((.cse9 (not .cse7)) (.cse5 (and .cse0 (not .cse15))) (.cse6 (and .cse15 (= ~pumpRunning~0 1))) (.cse14 (and .cse13 .cse11)) (.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse12 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse4 (<= 2 ~waterLevel~0)) (.cse10 (not (<= 2 |old(~waterLevel~0)|)))) (and (let ((.cse2 (not (= |old(~waterLevel~0)| 1)))) (or (and .cse0 (or .cse1 .cse2 (<= ~waterLevel~0 1))) (and .cse3 .cse1) (and .cse4 (or .cse1 .cse2) (or .cse5 .cse6)) .cse7)) (or .cse1 .cse8 .cse9 .cse10) (or .cse1 .cse9 (and .cse0 .cse11)) (or .cse12 .cse13 .cse7) (or .cse1 .cse12 .cse14 .cse5 .cse6) (or .cse1 .cse12 .cse14 .cse15 .cse7) (or .cse15 (and .cse3 .cse0) (and .cse0 (not (= |timeShift_processEnvironment_~tmp~2#1| 0))) .cse7) (or .cse1 .cse12 .cse4 .cse10))))) [2022-12-14 05:27:16,932 INFO L899 garLoopResultBuilder]: For program point L460-1(line 460) no Hoare annotation was computed. [2022-12-14 05:27:16,933 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 104 127) no Hoare annotation was computed. [2022-12-14 05:27:16,933 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 440) no Hoare annotation was computed. [2022-12-14 05:27:16,933 INFO L899 garLoopResultBuilder]: For program point L196(lines 196 204) no Hoare annotation was computed. [2022-12-14 05:27:16,933 INFO L895 garLoopResultBuilder]: At program point L671(lines 671 678) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= |ULTIMATE.start_main_~tmp~8#1| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-12-14 05:27:16,933 INFO L899 garLoopResultBuilder]: For program point L415(lines 415 421) no Hoare annotation was computed. [2022-12-14 05:27:16,933 INFO L895 garLoopResultBuilder]: At program point L415-2(lines 407 422) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1) (and .cse0 .cse1 (not (= 0 ~systemActive~0))))) [2022-12-14 05:27:16,933 INFO L902 garLoopResultBuilder]: At program point L671-2(lines 671 678) the Hoare annotation is: true [2022-12-14 05:27:16,933 INFO L899 garLoopResultBuilder]: For program point L378(lines 377 426) no Hoare annotation was computed. [2022-12-14 05:27:16,933 INFO L895 garLoopResultBuilder]: At program point L407(lines 407 422) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (not (= 0 ~systemActive~0))) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) .cse0 .cse1))) [2022-12-14 05:27:16,934 INFO L895 garLoopResultBuilder]: At program point L399(line 399) the Hoare annotation is: (let ((.cse3 (not (= 0 ~systemActive~0))) (.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and (not (= ~methaneLevelCritical~0 0)) .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2))) [2022-12-14 05:27:16,934 INFO L895 garLoopResultBuilder]: At program point L424(lines 377 426) the Hoare annotation is: (let ((.cse3 (not (= 0 ~systemActive~0))) (.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and (not (= ~methaneLevelCritical~0 0)) .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2))) [2022-12-14 05:27:16,934 INFO L899 garLoopResultBuilder]: For program point L387(lines 387 393) no Hoare annotation was computed. [2022-12-14 05:27:16,934 INFO L899 garLoopResultBuilder]: For program point L387-1(lines 387 393) no Hoare annotation was computed. [2022-12-14 05:27:16,934 INFO L895 garLoopResultBuilder]: At program point L346(line 346) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (= ~methaneLevelCritical~0 0))) (and (or .cse0 .cse1 (not (= |isMethaneAlarm_#t~ret9| 0))) (or .cse0 .cse1 (not (= |isMethaneAlarm_#res| 0))) (= |ULTIMATE.start_main_~tmp~8#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (or .cse0 .cse1 (not (= |isMethaneLevelCritical_#res| 0))) (not (= 0 ~systemActive~0)))) [2022-12-14 05:27:16,934 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 05:27:16,934 INFO L902 garLoopResultBuilder]: At program point L430(lines 367 434) the Hoare annotation is: true [2022-12-14 05:27:16,934 INFO L899 garLoopResultBuilder]: For program point L397(lines 397 403) no Hoare annotation was computed. [2022-12-14 05:27:16,934 INFO L899 garLoopResultBuilder]: For program point L397-1(lines 397 403) no Hoare annotation was computed. [2022-12-14 05:27:16,934 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2022-12-14 05:27:16,934 INFO L895 garLoopResultBuilder]: At program point L389(line 389) the Hoare annotation is: (let ((.cse3 (not (= 0 ~systemActive~0))) (.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and (not (= ~methaneLevelCritical~0 0)) .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2))) [2022-12-14 05:27:16,934 INFO L899 garLoopResultBuilder]: For program point L344(lines 344 350) no Hoare annotation was computed. [2022-12-14 05:27:16,934 INFO L895 garLoopResultBuilder]: At program point L344-1(lines 344 350) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_main_~tmp~8#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-12-14 05:27:16,934 INFO L895 garLoopResultBuilder]: At program point L427(lines 376 428) the Hoare annotation is: false [2022-12-14 05:27:16,935 INFO L895 garLoopResultBuilder]: At program point L155(line 155) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0) (or .cse1 (not (= ~methaneLevelCritical~0 0)) .cse0) (or .cse1 .cse0 (not (= ~methAndRunningLastTime~0 0))))) [2022-12-14 05:27:16,935 INFO L899 garLoopResultBuilder]: For program point L155-1(lines 136 160) no Hoare annotation was computed. [2022-12-14 05:27:16,935 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 136 160) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0) (or .cse1 (not (= ~methaneLevelCritical~0 0)) .cse0) (or .cse1 .cse0 (not (= ~methAndRunningLastTime~0 0))))) [2022-12-14 05:27:16,935 INFO L895 garLoopResultBuilder]: At program point L226(line 226) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (not (= ~methAndRunningLastTime~0 0))) (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or (not .cse0) (and (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0)) .cse1))) [2022-12-14 05:27:16,935 INFO L895 garLoopResultBuilder]: At program point L226-1(line 226) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (not (= ~methAndRunningLastTime~0 0))) (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or (and (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0) (= |processEnvironment__wrappee__highWaterSensor_activatePump_#t~ret8#1| ~methaneLevelCritical~0)) (not .cse0) .cse1))) [2022-12-14 05:27:16,935 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 136 160) no Hoare annotation was computed. [2022-12-14 05:27:16,935 INFO L895 garLoopResultBuilder]: At program point L150(line 150) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (not (= ~methAndRunningLastTime~0 0))) (or (not .cse0) .cse1 (and (= ~pumpRunning~0 0) (or (<= 2 ~waterLevel~0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0)))) (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1))) [2022-12-14 05:27:16,935 INFO L899 garLoopResultBuilder]: For program point L144(lines 144 152) no Hoare annotation was computed. [2022-12-14 05:27:16,935 INFO L895 garLoopResultBuilder]: At program point L140(lines 140 157) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0) (or .cse1 (not (= ~methaneLevelCritical~0 0)) .cse0) (or .cse1 .cse0 (not (= ~methAndRunningLastTime~0 0))))) [2022-12-14 05:27:16,935 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 499 510) no Hoare annotation was computed. [2022-12-14 05:27:16,936 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 499 510) the Hoare annotation is: (let ((.cse4 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (= ~methaneLevelCritical~0 0)) (.cse2 (= 0 ~systemActive~0)) (.cse5 (not (= ~pumpRunning~0 0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse6 (= ~waterLevel~0 1)) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or (not .cse0) (not (= ~pumpRunning~0 1)) .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse1 .cse3 .cse4) (or .cse1 .cse2 .cse6 .cse3) (or .cse0 .cse1 .cse2 .cse6) (or .cse5 .cse1 .cse6 .cse3))) [2022-12-14 05:27:16,936 INFO L902 garLoopResultBuilder]: At program point L251(line 251) the Hoare annotation is: true [2022-12-14 05:27:16,936 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 246 256) no Hoare annotation was computed. [2022-12-14 05:27:16,936 INFO L899 garLoopResultBuilder]: For program point L251-1(line 251) no Hoare annotation was computed. [2022-12-14 05:27:16,936 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 246 256) the Hoare annotation is: true [2022-12-14 05:27:16,938 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:27:16,940 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 05:27:16,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 05:27:16 BoogieIcfgContainer [2022-12-14 05:27:16,965 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 05:27:16,966 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 05:27:16,966 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 05:27:16,966 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 05:27:16,966 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:26:29" (3/4) ... [2022-12-14 05:27:16,969 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 05:27:16,974 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-12-14 05:27:16,974 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-12-14 05:27:16,975 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-12-14 05:27:16,975 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-12-14 05:27:16,975 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-12-14 05:27:16,975 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-12-14 05:27:16,975 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-12-14 05:27:16,975 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-12-14 05:27:16,975 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-12-14 05:27:16,975 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-12-14 05:27:16,982 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 51 nodes and edges [2022-12-14 05:27:16,982 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-12-14 05:27:16,983 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-14 05:27:16,983 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 05:27:16,983 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 05:27:17,002 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && (((!(\old(methAndRunningLastTime) == 0) || \old(waterLevel) == waterLevel) || 0 == systemActive) || !(2 <= \old(waterLevel)))) && ((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || 0 == systemActive)) && (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && (\old(waterLevel) == waterLevel || waterLevel == 1)))) && ((pumpRunning == \old(pumpRunning) && (\old(waterLevel) == waterLevel || waterLevel == 1)) || 0 == systemActive) [2022-12-14 05:27:17,003 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((pumpRunning == 0 && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel <= 1)) || (pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0))) || ((2 <= waterLevel && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1))) && ((pumpRunning == 0 && !(methaneLevelCritical == 0)) || (methaneLevelCritical == 0 && pumpRunning == 1)))) || 0 == systemActive) && ((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || 0 == systemActive)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (methAndRunningLastTime == 0 && (\old(waterLevel) == waterLevel || waterLevel == 1))) || (pumpRunning == 0 && !(methaneLevelCritical == 0))) || (methaneLevelCritical == 0 && pumpRunning == 1))) && (((methaneLevelCritical == 0 || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || (pumpRunning == 0 && !(tmp == 0))) || 0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (methAndRunningLastTime == 0 && (\old(waterLevel) == waterLevel || waterLevel == 1))) || methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 2 <= waterLevel) || !(2 <= \old(waterLevel)))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2022-12-14 05:27:17,003 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive) && ((pumpRunning == \old(pumpRunning) || !(methaneLevelCritical == 0)) || 0 == systemActive)) && ((pumpRunning == \old(pumpRunning) || 0 == systemActive) || !(methAndRunningLastTime == 0)) [2022-12-14 05:27:17,004 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(methaneLevelCritical == 0)) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || ((((tmp == methaneLevelCritical && 2 <= waterLevel) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1))) && (pumpRunning == \old(pumpRunning) || methaneLevelCritical == 0)) && ((pumpRunning == 0 && !(methaneLevelCritical == 0)) || (methaneLevelCritical == 0 && pumpRunning == 1)))) || (((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && pumpRunning == 0) && (!(\old(waterLevel) == 1) || waterLevel <= 1))) || 0 == systemActive)) && (((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(\old(pumpRunning) == 1)) || 0 == systemActive)) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && !(methaneLevelCritical == 0))) || (methaneLevelCritical == 0 && pumpRunning == 1)) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && ((((((!(\old(pumpRunning) == 0) && tmp == methaneLevelCritical) && pumpRunning == 0) || ((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && tmp == methaneLevelCritical)) || ((((tmp == methaneLevelCritical && 2 <= waterLevel) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1))) && (pumpRunning == \old(pumpRunning) || methaneLevelCritical == 0)) && ((pumpRunning == 0 && !(methaneLevelCritical == 0)) || (methaneLevelCritical == 0 && pumpRunning == 1)))) || (((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && pumpRunning == 0) && (!(\old(waterLevel) == 1) || waterLevel <= 1))) || 0 == systemActive)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || ((((tmp == methaneLevelCritical && 2 <= waterLevel) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1))) && (pumpRunning == \old(pumpRunning) || methaneLevelCritical == 0)) && ((pumpRunning == 0 && !(methaneLevelCritical == 0)) || (methaneLevelCritical == 0 && pumpRunning == 1)))) || \old(waterLevel) == waterLevel) || !(2 <= \old(waterLevel)))) && (((methaneLevelCritical == 0 || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || (pumpRunning == 0 && !(tmp == 0))) || 0 == systemActive)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methaneLevelCritical == 0) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && ((!(\old(pumpRunning) == 0) || !(0 == systemActive)) || ((tmp == methaneLevelCritical && pumpRunning == 0) && (\old(waterLevel) == waterLevel || waterLevel == 1)))) && (((!(\old(pumpRunning) == 0) || 2 <= waterLevel) || !(0 == systemActive)) || !(2 <= \old(waterLevel))) [2022-12-14 05:27:17,004 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive) && ((pumpRunning == \old(pumpRunning) || !(methaneLevelCritical == 0)) || 0 == systemActive)) && ((pumpRunning == \old(pumpRunning) || 0 == systemActive) || !(methAndRunningLastTime == 0)) [2022-12-14 05:27:17,004 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((!(\old(pumpRunning) == 0) || ((((((((((tmp == methaneLevelCritical && methAndRunningLastTime == 0) && (methaneLevelCritical == 0 || !(aux-isMethaneAlarm()-aux == 0))) && 2 <= waterLevel) && (methaneLevelCritical == 0 || !(aux-isMethaneLevelCritical()-aux == 0))) && (methaneLevelCritical == 0 || !(\result == 0))) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1))) && (pumpRunning == \old(pumpRunning) || methaneLevelCritical == 0)) && ((pumpRunning == 0 && !(methaneLevelCritical == 0)) || (methaneLevelCritical == 0 && pumpRunning == 1))) && (methaneLevelCritical == 0 || !(\result == 0))) && !(0 == systemActive))) || !(\old(methAndRunningLastTime) == 0)) || \old(waterLevel) == waterLevel) || waterLevel == 1) && (((methaneLevelCritical == 0 || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0) && !(0 == systemActive))) || 0 == systemActive) || ((pumpRunning == 0 && !(tmp == 0)) && tmp___0 == 0))) && ((((!(\old(pumpRunning) == 0) || ((((((((((tmp == methaneLevelCritical && methAndRunningLastTime == 0) && (methaneLevelCritical == 0 || !(aux-isMethaneAlarm()-aux == 0))) && 2 <= waterLevel) && (methaneLevelCritical == 0 || !(aux-isMethaneLevelCritical()-aux == 0))) && (methaneLevelCritical == 0 || !(\result == 0))) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1))) && (pumpRunning == \old(pumpRunning) || methaneLevelCritical == 0)) && ((pumpRunning == 0 && !(methaneLevelCritical == 0)) || (methaneLevelCritical == 0 && pumpRunning == 1))) && (methaneLevelCritical == 0 || !(\result == 0))) && !(0 == systemActive))) || !(\old(methAndRunningLastTime) == 0)) || \old(waterLevel) == waterLevel) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || (((tmp == methaneLevelCritical && pumpRunning == 0) && methAndRunningLastTime == 0) && (\old(waterLevel) == waterLevel || waterLevel == 1))) || !(0 == systemActive))) && ((((((((((((((tmp == methaneLevelCritical && methAndRunningLastTime == 0) && (methaneLevelCritical == 0 || !(aux-isMethaneAlarm()-aux == 0))) && 2 <= waterLevel) && (methaneLevelCritical == 0 || !(aux-isMethaneLevelCritical()-aux == 0))) && (methaneLevelCritical == 0 || !(\result == 0))) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1))) && (pumpRunning == \old(pumpRunning) || methaneLevelCritical == 0)) && ((pumpRunning == 0 && !(methaneLevelCritical == 0)) || (methaneLevelCritical == 0 && pumpRunning == 1))) && (methaneLevelCritical == 0 || !(\result == 0))) && !(0 == systemActive)) || (((!(\old(pumpRunning) == 0) && tmp == methaneLevelCritical) && pumpRunning == 0) && methAndRunningLastTime == 0)) || (((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && tmp == methaneLevelCritical) && methAndRunningLastTime == 0)) || (((((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && pumpRunning == 0) && methAndRunningLastTime == 0) && (!(\old(waterLevel) == 1) || waterLevel <= 1)) && !(0 == systemActive))) || 0 == systemActive)) && ((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || tmp___0 == 0)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methaneLevelCritical == 0) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && (((!(\old(pumpRunning) == 0) || 2 <= waterLevel) || !(0 == systemActive)) || !(2 <= \old(waterLevel))) [2022-12-14 05:27:17,004 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\old(pumpRunning) == 0 || 0 == systemActive) || !(methAndRunningLastTime == 0)) && ((\old(pumpRunning) == 0 || !(methaneLevelCritical == 0)) || 0 == systemActive)) && ((((pumpRunning == 0 && 2 <= waterLevel) && aux-isMethaneAlarm()-aux == methaneLevelCritical) || !(\old(pumpRunning) == 0)) || 0 == systemActive) [2022-12-14 05:27:17,005 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) && 0 == systemActive [2022-12-14 05:27:17,028 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef568b9-cd13-4ead-a3c1-38a7f9d61e75/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 05:27:17,028 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 05:27:17,029 INFO L158 Benchmark]: Toolchain (without parser) took 48080.61ms. Allocated memory was 176.2MB in the beginning and 536.9MB in the end (delta: 360.7MB). Free memory was 139.4MB in the beginning and 418.5MB in the end (delta: -279.1MB). Peak memory consumption was 84.0MB. Max. memory is 16.1GB. [2022-12-14 05:27:17,029 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 176.2MB. Free memory is still 152.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 05:27:17,029 INFO L158 Benchmark]: CACSL2BoogieTranslator took 311.20ms. Allocated memory is still 176.2MB. Free memory was 139.2MB in the beginning and 120.2MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 05:27:17,030 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.69ms. Allocated memory is still 176.2MB. Free memory was 119.9MB in the beginning and 117.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 05:27:17,030 INFO L158 Benchmark]: Boogie Preprocessor took 24.26ms. Allocated memory is still 176.2MB. Free memory was 117.8MB in the beginning and 116.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 05:27:17,030 INFO L158 Benchmark]: RCFGBuilder took 431.03ms. Allocated memory is still 176.2MB. Free memory was 116.0MB in the beginning and 89.7MB in the end (delta: 26.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-14 05:27:17,031 INFO L158 Benchmark]: TraceAbstraction took 47215.23ms. Allocated memory was 176.2MB in the beginning and 536.9MB in the end (delta: 360.7MB). Free memory was 89.0MB in the beginning and 424.9MB in the end (delta: -335.8MB). Peak memory consumption was 291.6MB. Max. memory is 16.1GB. [2022-12-14 05:27:17,031 INFO L158 Benchmark]: Witness Printer took 62.88ms. Allocated memory is still 536.9MB. Free memory was 423.8MB in the beginning and 418.5MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-14 05:27:17,032 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 176.2MB. Free memory is still 152.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 311.20ms. Allocated memory is still 176.2MB. Free memory was 139.2MB in the beginning and 120.2MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.69ms. Allocated memory is still 176.2MB. Free memory was 119.9MB in the beginning and 117.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.26ms. Allocated memory is still 176.2MB. Free memory was 117.8MB in the beginning and 116.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 431.03ms. Allocated memory is still 176.2MB. Free memory was 116.0MB in the beginning and 89.7MB in the end (delta: 26.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 47215.23ms. Allocated memory was 176.2MB in the beginning and 536.9MB in the end (delta: 360.7MB). Free memory was 89.0MB in the beginning and 424.9MB in the end (delta: -335.8MB). Peak memory consumption was 291.6MB. Max. memory is 16.1GB. * Witness Printer took 62.88ms. Allocated memory is still 536.9MB. Free memory was 423.8MB in the beginning and 418.5MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 440]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 47.1s, OverallIterations: 10, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 10.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 11.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3427 SdHoareTripleChecker+Valid, 4.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3400 mSDsluCounter, 4567 SdHoareTripleChecker+Invalid, 3.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3628 mSDsCounter, 2334 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8848 IncrementalHoareTripleChecker+Invalid, 11182 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2334 mSolverCounterUnsat, 939 mSDtfsCounter, 8848 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 976 GetRequests, 592 SyntacticMatches, 17 SemanticMatches, 367 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22072 ImplicationChecksByTransitivity, 17.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1853occurred in iteration=9, InterpolantAutomatonStates: 271, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 1044 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 45 LocationsWithAnnotation, 3224 PreInvPairs, 3845 NumberOfFragments, 2166 HoareAnnotationTreeSize, 3224 FomulaSimplifications, 11449 FormulaSimplificationTreeSizeReduction, 3.2s HoareSimplificationTime, 45 FomulaSimplificationsInter, 116649 FormulaSimplificationTreeSizeReductionInter, 8.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 846 NumberOfCodeBlocks, 846 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 996 ConstructedInterpolants, 0 QuantifiedInterpolants, 2426 SizeOfPredicates, 25 NumberOfNonLiveVariables, 1204 ConjunctsInSsa, 95 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 513/563 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 226]: Loop Invariant Derived loop invariant: (((\old(pumpRunning) == 0 || 0 == systemActive) || !(methAndRunningLastTime == 0)) && ((\old(pumpRunning) == 0 || !(methaneLevelCritical == 0)) || 0 == systemActive)) && ((((pumpRunning == 0 && 2 <= waterLevel) && aux-isMethaneAlarm()-aux == methaneLevelCritical) || !(\old(pumpRunning) == 0)) || 0 == systemActive) - InvariantResult [Line: 671]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 376]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 589]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 344]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && tmp == 1) && splverifierCounter == 0 - InvariantResult [Line: 377]: Loop Invariant Derived loop invariant: ((((methAndRunningLastTime == 0 && tmp == 1) && splverifierCounter == 0) && !(0 == systemActive)) || (((!(methaneLevelCritical == 0) && tmp == 1) && splverifierCounter == 0) && !(0 == systemActive))) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == 1) && splverifierCounter == 0) - InvariantResult [Line: 166]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive) && ((pumpRunning == \old(pumpRunning) || !(methaneLevelCritical == 0)) || 0 == systemActive)) && ((pumpRunning == \old(pumpRunning) || 0 == systemActive) || !(methAndRunningLastTime == 0)) - InvariantResult [Line: 462]: Loop Invariant Derived loop invariant: (((((((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(methaneLevelCritical == 0)) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || ((((tmp == methaneLevelCritical && 2 <= waterLevel) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1))) && (pumpRunning == \old(pumpRunning) || methaneLevelCritical == 0)) && ((pumpRunning == 0 && !(methaneLevelCritical == 0)) || (methaneLevelCritical == 0 && pumpRunning == 1)))) || (((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && pumpRunning == 0) && (!(\old(waterLevel) == 1) || waterLevel <= 1))) || 0 == systemActive)) && (((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(\old(pumpRunning) == 1)) || 0 == systemActive)) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && !(methaneLevelCritical == 0))) || (methaneLevelCritical == 0 && pumpRunning == 1)) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && ((((((!(\old(pumpRunning) == 0) && tmp == methaneLevelCritical) && pumpRunning == 0) || ((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && tmp == methaneLevelCritical)) || ((((tmp == methaneLevelCritical && 2 <= waterLevel) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1))) && (pumpRunning == \old(pumpRunning) || methaneLevelCritical == 0)) && ((pumpRunning == 0 && !(methaneLevelCritical == 0)) || (methaneLevelCritical == 0 && pumpRunning == 1)))) || (((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && pumpRunning == 0) && (!(\old(waterLevel) == 1) || waterLevel <= 1))) || 0 == systemActive)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || ((((tmp == methaneLevelCritical && 2 <= waterLevel) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1))) && (pumpRunning == \old(pumpRunning) || methaneLevelCritical == 0)) && ((pumpRunning == 0 && !(methaneLevelCritical == 0)) || (methaneLevelCritical == 0 && pumpRunning == 1)))) || \old(waterLevel) == waterLevel) || !(2 <= \old(waterLevel)))) && (((methaneLevelCritical == 0 || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || (pumpRunning == 0 && !(tmp == 0))) || 0 == systemActive)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methaneLevelCritical == 0) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && ((!(\old(pumpRunning) == 0) || !(0 == systemActive)) || ((tmp == methaneLevelCritical && pumpRunning == 0) && (\old(waterLevel) == waterLevel || waterLevel == 1)))) && (((!(\old(pumpRunning) == 0) || 2 <= waterLevel) || !(0 == systemActive)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 454]: Loop Invariant Derived loop invariant: ((((((((((!(\old(pumpRunning) == 0) || ((((((((((tmp == methaneLevelCritical && methAndRunningLastTime == 0) && (methaneLevelCritical == 0 || !(aux-isMethaneAlarm()-aux == 0))) && 2 <= waterLevel) && (methaneLevelCritical == 0 || !(aux-isMethaneLevelCritical()-aux == 0))) && (methaneLevelCritical == 0 || !(\result == 0))) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1))) && (pumpRunning == \old(pumpRunning) || methaneLevelCritical == 0)) && ((pumpRunning == 0 && !(methaneLevelCritical == 0)) || (methaneLevelCritical == 0 && pumpRunning == 1))) && (methaneLevelCritical == 0 || !(\result == 0))) && !(0 == systemActive))) || !(\old(methAndRunningLastTime) == 0)) || \old(waterLevel) == waterLevel) || waterLevel == 1) && (((methaneLevelCritical == 0 || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0) && !(0 == systemActive))) || 0 == systemActive) || ((pumpRunning == 0 && !(tmp == 0)) && tmp___0 == 0))) && ((((!(\old(pumpRunning) == 0) || ((((((((((tmp == methaneLevelCritical && methAndRunningLastTime == 0) && (methaneLevelCritical == 0 || !(aux-isMethaneAlarm()-aux == 0))) && 2 <= waterLevel) && (methaneLevelCritical == 0 || !(aux-isMethaneLevelCritical()-aux == 0))) && (methaneLevelCritical == 0 || !(\result == 0))) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1))) && (pumpRunning == \old(pumpRunning) || methaneLevelCritical == 0)) && ((pumpRunning == 0 && !(methaneLevelCritical == 0)) || (methaneLevelCritical == 0 && pumpRunning == 1))) && (methaneLevelCritical == 0 || !(\result == 0))) && !(0 == systemActive))) || !(\old(methAndRunningLastTime) == 0)) || \old(waterLevel) == waterLevel) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || (((tmp == methaneLevelCritical && pumpRunning == 0) && methAndRunningLastTime == 0) && (\old(waterLevel) == waterLevel || waterLevel == 1))) || !(0 == systemActive))) && ((((((((((((((tmp == methaneLevelCritical && methAndRunningLastTime == 0) && (methaneLevelCritical == 0 || !(aux-isMethaneAlarm()-aux == 0))) && 2 <= waterLevel) && (methaneLevelCritical == 0 || !(aux-isMethaneLevelCritical()-aux == 0))) && (methaneLevelCritical == 0 || !(\result == 0))) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1))) && (pumpRunning == \old(pumpRunning) || methaneLevelCritical == 0)) && ((pumpRunning == 0 && !(methaneLevelCritical == 0)) || (methaneLevelCritical == 0 && pumpRunning == 1))) && (methaneLevelCritical == 0 || !(\result == 0))) && !(0 == systemActive)) || (((!(\old(pumpRunning) == 0) && tmp == methaneLevelCritical) && pumpRunning == 0) && methAndRunningLastTime == 0)) || (((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && tmp == methaneLevelCritical) && methAndRunningLastTime == 0)) || (((((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && pumpRunning == 0) && methAndRunningLastTime == 0) && (!(\old(waterLevel) == 1) || waterLevel <= 1)) && !(0 == systemActive))) || 0 == systemActive)) && ((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || tmp___0 == 0)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methaneLevelCritical == 0) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && (((!(\old(pumpRunning) == 0) || 2 <= waterLevel) || !(0 == systemActive)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 188]: Loop Invariant Derived loop invariant: (((((((((pumpRunning == 0 && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel <= 1)) || (pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0))) || ((2 <= waterLevel && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1))) && ((pumpRunning == 0 && !(methaneLevelCritical == 0)) || (methaneLevelCritical == 0 && pumpRunning == 1)))) || 0 == systemActive) && ((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || 0 == systemActive)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (methAndRunningLastTime == 0 && (\old(waterLevel) == waterLevel || waterLevel == 1))) || (pumpRunning == 0 && !(methaneLevelCritical == 0))) || (methaneLevelCritical == 0 && pumpRunning == 1))) && (((methaneLevelCritical == 0 || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || (pumpRunning == 0 && !(tmp == 0))) || 0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (methAndRunningLastTime == 0 && (\old(waterLevel) == waterLevel || waterLevel == 1))) || methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 2 <= waterLevel) || !(2 <= \old(waterLevel)))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 599]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 407]: Loop Invariant Derived loop invariant: ((tmp == 1 && splverifierCounter == 0) && !(0 == systemActive)) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == 1) && splverifierCounter == 0) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 440]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) && 0 == systemActive - InvariantResult [Line: 671]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && tmp == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 367]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && (((!(\old(methAndRunningLastTime) == 0) || \old(waterLevel) == waterLevel) || 0 == systemActive) || !(2 <= \old(waterLevel)))) && ((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || 0 == systemActive)) && (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && (\old(waterLevel) == waterLevel || waterLevel == 1)))) && ((pumpRunning == \old(pumpRunning) && (\old(waterLevel) == waterLevel || waterLevel == 1)) || 0 == systemActive) - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive) && ((pumpRunning == \old(pumpRunning) || !(methaneLevelCritical == 0)) || 0 == systemActive)) && ((pumpRunning == \old(pumpRunning) || 0 == systemActive) || !(methAndRunningLastTime == 0)) RESULT: Ultimate proved your program to be correct! [2022-12-14 05:27:17,058 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef568b9-cd13-4ead-a3c1-38a7f9d61e75/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE