./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545231b2-683f-4b77-b944-0c807987ee46/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545231b2-683f-4b77-b944-0c807987ee46/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_545231b2-683f-4b77-b944-0c807987ee46/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545231b2-683f-4b77-b944-0c807987ee46/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product27.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545231b2-683f-4b77-b944-0c807987ee46/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_545231b2-683f-4b77-b944-0c807987ee46/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 d2b18f8936761d8846ee25b456ed772fff798460a5a47e80881faf00ea0dfef9 --- 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 09:00:33,894 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:00:33,896 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:00:33,914 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:00:33,915 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:00:33,916 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:00:33,917 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:00:33,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:00:33,920 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:00:33,921 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:00:33,922 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:00:33,923 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:00:33,924 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:00:33,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:00:33,926 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:00:33,927 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:00:33,927 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:00:33,928 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:00:33,930 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:00:33,932 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:00:33,933 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:00:33,934 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:00:33,935 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:00:33,936 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:00:33,940 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:00:33,940 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:00:33,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:00:33,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:00:33,942 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:00:33,943 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:00:33,943 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:00:33,944 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:00:33,945 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:00:33,945 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:00:33,946 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:00:33,947 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:00:33,947 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:00:33,948 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:00:33,948 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:00:33,949 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:00:33,949 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:00:33,950 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545231b2-683f-4b77-b944-0c807987ee46/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 09:00:33,971 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:00:33,972 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:00:33,972 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:00:33,972 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:00:33,973 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:00:33,973 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:00:33,973 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:00:33,974 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:00:33,974 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:00:33,974 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:00:33,974 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:00:33,974 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:00:33,974 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:00:33,975 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:00:33,975 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:00:33,975 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:00:33,975 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:00:33,975 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:00:33,976 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:00:33,976 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 09:00:33,977 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:00:33,977 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 09:00:33,977 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:00:33,977 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:00:33,977 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:00:33,978 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:00:33,978 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 09:00:33,978 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:00:33,978 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:00:33,978 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:00:33,978 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:00:33,979 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:00:33,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:00:33,979 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:00:33,979 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:00:33,979 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:00:33,980 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:00:33,980 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:00:33,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:00:33,980 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:00:33,980 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:00:33,980 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_545231b2-683f-4b77-b944-0c807987ee46/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545231b2-683f-4b77-b944-0c807987ee46/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d2b18f8936761d8846ee25b456ed772fff798460a5a47e80881faf00ea0dfef9 [2022-12-14 09:00:34,190 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:00:34,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:00:34,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:00:34,213 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:00:34,213 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:00:34,214 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545231b2-683f-4b77-b944-0c807987ee46/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/minepump_spec2_product27.cil.c [2022-12-14 09:00:36,761 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:00:36,927 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:00:36,927 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545231b2-683f-4b77-b944-0c807987ee46/sv-benchmarks/c/product-lines/minepump_spec2_product27.cil.c [2022-12-14 09:00:36,935 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545231b2-683f-4b77-b944-0c807987ee46/bin/utaipan-gh47qXpMRh/data/79040b60e/f39dceb451fc4369816ceaf3b49f8715/FLAG492d5b560 [2022-12-14 09:00:36,946 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545231b2-683f-4b77-b944-0c807987ee46/bin/utaipan-gh47qXpMRh/data/79040b60e/f39dceb451fc4369816ceaf3b49f8715 [2022-12-14 09:00:36,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:00:36,950 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:00:36,952 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:00:36,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:00:36,955 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:00:36,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:00:36" (1/1) ... [2022-12-14 09:00:36,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@167bc1f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:00:36, skipping insertion in model container [2022-12-14 09:00:36,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:00:36" (1/1) ... [2022-12-14 09:00:36,962 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:00:36,994 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:00:37,189 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_545231b2-683f-4b77-b944-0c807987ee46/sv-benchmarks/c/product-lines/minepump_spec2_product27.cil.c[18283,18296] [2022-12-14 09:00:37,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:00:37,200 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:00:37,245 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_545231b2-683f-4b77-b944-0c807987ee46/sv-benchmarks/c/product-lines/minepump_spec2_product27.cil.c[18283,18296] [2022-12-14 09:00:37,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:00:37,257 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:00:37,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:00:37 WrapperNode [2022-12-14 09:00:37,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:00:37,259 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:00:37,259 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:00:37,259 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:00:37,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:00:37" (1/1) ... [2022-12-14 09:00:37,273 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:00:37" (1/1) ... [2022-12-14 09:00:37,289 INFO L138 Inliner]: procedures = 55, calls = 98, calls flagged for inlining = 22, calls inlined = 17, statements flattened = 168 [2022-12-14 09:00:37,289 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:00:37,290 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:00:37,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:00:37,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:00:37,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:00:37" (1/1) ... [2022-12-14 09:00:37,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:00:37" (1/1) ... [2022-12-14 09:00:37,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:00:37" (1/1) ... [2022-12-14 09:00:37,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:00:37" (1/1) ... [2022-12-14 09:00:37,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:00:37" (1/1) ... [2022-12-14 09:00:37,305 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:00:37" (1/1) ... [2022-12-14 09:00:37,306 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:00:37" (1/1) ... [2022-12-14 09:00:37,307 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:00:37" (1/1) ... [2022-12-14 09:00:37,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:00:37,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:00:37,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:00:37,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:00:37,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:00:37" (1/1) ... [2022-12-14 09:00:37,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:00:37,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545231b2-683f-4b77-b944-0c807987ee46/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:00:37,334 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545231b2-683f-4b77-b944-0c807987ee46/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:00:37,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545231b2-683f-4b77-b944-0c807987ee46/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:00:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:00:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-12-14 09:00:37,371 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-12-14 09:00:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-12-14 09:00:37,371 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-12-14 09:00:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-12-14 09:00:37,371 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-12-14 09:00:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-12-14 09:00:37,372 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-12-14 09:00:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-12-14 09:00:37,372 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-12-14 09:00:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-12-14 09:00:37,372 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-12-14 09:00:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:00:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-12-14 09:00:37,373 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-12-14 09:00:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:00:37,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:00:37,435 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:00:37,437 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:00:37,613 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:00:37,683 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:00:37,683 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 09:00:37,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:00:37 BoogieIcfgContainer [2022-12-14 09:00:37,685 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:00:37,687 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:00:37,687 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:00:37,689 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:00:37,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:00:36" (1/3) ... [2022-12-14 09:00:37,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55f11ba9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:00:37, skipping insertion in model container [2022-12-14 09:00:37,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:00:37" (2/3) ... [2022-12-14 09:00:37,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55f11ba9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:00:37, skipping insertion in model container [2022-12-14 09:00:37,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:00:37" (3/3) ... [2022-12-14 09:00:37,692 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product27.cil.c [2022-12-14 09:00:37,706 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:00:37,706 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 09:00:37,742 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:00:37,747 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;@8b6dbf5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:00:37,747 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 09:00:37,751 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 37 states have (on average 1.4594594594594594) internal successors, (54), 44 states have internal predecessors, (54), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 09:00:37,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 09:00:37,758 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:00:37,758 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 09:00:37,759 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:00:37,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:00:37,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1160012329, now seen corresponding path program 1 times [2022-12-14 09:00:37,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:00:37,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806658400] [2022-12-14 09:00:37,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:00:37,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:00:37,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:00:37,928 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 09:00:37,928 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:00:37,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806658400] [2022-12-14 09:00:37,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806658400] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:00:37,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:00:37,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:00:37,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574121920] [2022-12-14 09:00:37,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:00:37,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 09:00:37,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:00:37,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 09:00:37,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 09:00:37,969 INFO L87 Difference]: Start difference. First operand has 57 states, 37 states have (on average 1.4594594594594594) internal successors, (54), 44 states have internal predecessors, (54), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) 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 09:00:38,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:00:38,030 INFO L93 Difference]: Finished difference Result 112 states and 153 transitions. [2022-12-14 09:00:38,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 09:00:38,032 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 09:00:38,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:00:38,038 INFO L225 Difference]: With dead ends: 112 [2022-12-14 09:00:38,038 INFO L226 Difference]: Without dead ends: 52 [2022-12-14 09:00:38,040 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 09:00:38,043 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:00:38,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:00:38,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-12-14 09:00:38,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-12-14 09:00:38,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 40 states have internal predecessors, (46), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2022-12-14 09:00:38,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 67 transitions. [2022-12-14 09:00:38,070 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 67 transitions. Word has length 17 [2022-12-14 09:00:38,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:00:38,070 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 67 transitions. [2022-12-14 09:00:38,070 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 09:00:38,070 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 67 transitions. [2022-12-14 09:00:38,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 09:00:38,071 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:00:38,072 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 09:00:38,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:00:38,072 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:00:38,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:00:38,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1022461063, now seen corresponding path program 1 times [2022-12-14 09:00:38,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:00:38,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532015249] [2022-12-14 09:00:38,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:00:38,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:00:38,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:00:38,134 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 09:00:38,134 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:00:38,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532015249] [2022-12-14 09:00:38,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532015249] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:00:38,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:00:38,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:00:38,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694409916] [2022-12-14 09:00:38,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:00:38,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:00:38,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:00:38,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:00:38,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:00:38,136 INFO L87 Difference]: Start difference. First operand 52 states and 67 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 09:00:38,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:00:38,162 INFO L93 Difference]: Finished difference Result 76 states and 96 transitions. [2022-12-14 09:00:38,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:00:38,163 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 09:00:38,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:00:38,164 INFO L225 Difference]: With dead ends: 76 [2022-12-14 09:00:38,164 INFO L226 Difference]: Without dead ends: 44 [2022-12-14 09:00:38,165 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 09:00:38,166 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 14 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:00:38,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 71 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:00:38,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-12-14 09:00:38,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-12-14 09:00:38,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 35 states have internal predecessors, (40), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 09:00:38,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 56 transitions. [2022-12-14 09:00:38,174 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 56 transitions. Word has length 18 [2022-12-14 09:00:38,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:00:38,174 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 56 transitions. [2022-12-14 09:00:38,175 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 09:00:38,175 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions. [2022-12-14 09:00:38,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 09:00:38,175 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:00:38,176 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 09:00:38,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 09:00:38,176 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:00:38,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:00:38,177 INFO L85 PathProgramCache]: Analyzing trace with hash 609263628, now seen corresponding path program 1 times [2022-12-14 09:00:38,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:00:38,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062039094] [2022-12-14 09:00:38,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:00:38,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:00:38,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:00:38,259 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 09:00:38,260 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:00:38,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062039094] [2022-12-14 09:00:38,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062039094] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:00:38,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:00:38,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:00:38,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028880359] [2022-12-14 09:00:38,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:00:38,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:00:38,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:00:38,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:00:38,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:00:38,262 INFO L87 Difference]: Start difference. First operand 44 states and 56 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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 09:00:38,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:00:38,310 INFO L93 Difference]: Finished difference Result 128 states and 165 transitions. [2022-12-14 09:00:38,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:00:38,310 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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 09:00:38,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:00:38,312 INFO L225 Difference]: With dead ends: 128 [2022-12-14 09:00:38,312 INFO L226 Difference]: Without dead ends: 86 [2022-12-14 09:00:38,312 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 09:00:38,313 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 43 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 102 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 09:00:38,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 102 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:00:38,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-12-14 09:00:38,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 83. [2022-12-14 09:00:38,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 54 states have (on average 1.3888888888888888) internal successors, (75), 65 states have internal predecessors, (75), 16 states have call successors, (16), 12 states have call predecessors, (16), 12 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 09:00:38,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 107 transitions. [2022-12-14 09:00:38,328 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 107 transitions. Word has length 21 [2022-12-14 09:00:38,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:00:38,328 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 107 transitions. [2022-12-14 09:00:38,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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 09:00:38,328 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 107 transitions. [2022-12-14 09:00:38,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 09:00:38,329 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:00:38,329 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 09:00:38,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 09:00:38,329 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:00:38,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:00:38,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1313278024, now seen corresponding path program 1 times [2022-12-14 09:00:38,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:00:38,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300150913] [2022-12-14 09:00:38,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:00:38,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:00:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:00:38,421 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 09:00:38,421 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:00:38,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300150913] [2022-12-14 09:00:38,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300150913] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:00:38,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:00:38,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 09:00:38,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7224428] [2022-12-14 09:00:38,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:00:38,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 09:00:38,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:00:38,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 09:00:38,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:00:38,424 INFO L87 Difference]: Start difference. First operand 83 states and 107 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 09:00:38,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:00:38,523 INFO L93 Difference]: Finished difference Result 241 states and 314 transitions. [2022-12-14 09:00:38,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 09:00:38,524 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 09:00:38,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:00:38,525 INFO L225 Difference]: With dead ends: 241 [2022-12-14 09:00:38,525 INFO L226 Difference]: Without dead ends: 160 [2022-12-14 09:00:38,526 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 09:00:38,526 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 33 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:00:38,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 224 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:00:38,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-12-14 09:00:38,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 152. [2022-12-14 09:00:38,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 99 states have (on average 1.3636363636363635) internal successors, (135), 118 states have internal predecessors, (135), 30 states have call successors, (30), 22 states have call predecessors, (30), 22 states have return successors, (30), 20 states have call predecessors, (30), 30 states have call successors, (30) [2022-12-14 09:00:38,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 195 transitions. [2022-12-14 09:00:38,542 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 195 transitions. Word has length 24 [2022-12-14 09:00:38,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:00:38,542 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 195 transitions. [2022-12-14 09:00:38,543 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 09:00:38,543 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 195 transitions. [2022-12-14 09:00:38,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 09:00:38,544 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:00:38,544 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 09:00:38,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 09:00:38,544 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:00:38,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:00:38,544 INFO L85 PathProgramCache]: Analyzing trace with hash -74344638, now seen corresponding path program 1 times [2022-12-14 09:00:38,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:00:38,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537914306] [2022-12-14 09:00:38,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:00:38,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:00:38,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:00:38,591 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 09:00:38,591 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:00:38,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537914306] [2022-12-14 09:00:38,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537914306] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:00:38,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:00:38,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:00:38,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377896914] [2022-12-14 09:00:38,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:00:38,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:00:38,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:00:38,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:00:38,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:00:38,593 INFO L87 Difference]: Start difference. First operand 152 states and 195 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 09:00:38,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:00:38,641 INFO L93 Difference]: Finished difference Result 233 states and 304 transitions. [2022-12-14 09:00:38,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:00:38,641 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 09:00:38,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:00:38,643 INFO L225 Difference]: With dead ends: 233 [2022-12-14 09:00:38,643 INFO L226 Difference]: Without dead ends: 231 [2022-12-14 09:00:38,644 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 09:00:38,645 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 31 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:00:38,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 92 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:00:38,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-12-14 09:00:38,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2022-12-14 09:00:38,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 150 states have (on average 1.3666666666666667) internal successors, (205), 179 states have internal predecessors, (205), 46 states have call successors, (46), 34 states have call predecessors, (46), 34 states have return successors, (50), 31 states have call predecessors, (50), 46 states have call successors, (50) [2022-12-14 09:00:38,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 301 transitions. [2022-12-14 09:00:38,675 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 301 transitions. Word has length 27 [2022-12-14 09:00:38,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:00:38,676 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 301 transitions. [2022-12-14 09:00:38,676 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 09:00:38,676 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 301 transitions. [2022-12-14 09:00:38,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-12-14 09:00:38,678 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:00:38,678 INFO L195 NwaCegarLoop]: trace histogram [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 09:00:38,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 09:00:38,679 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:00:38,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:00:38,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1619739911, now seen corresponding path program 1 times [2022-12-14 09:00:38,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:00:38,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986469724] [2022-12-14 09:00:38,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:00:38,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:00:38,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:00:38,848 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:00:38,848 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:00:38,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986469724] [2022-12-14 09:00:38,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986469724] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:00:38,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:00:38,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 09:00:38,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499627682] [2022-12-14 09:00:38,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:00:38,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 09:00:38,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:00:38,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 09:00:38,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:00:38,849 INFO L87 Difference]: Start difference. First operand 231 states and 301 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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 09:00:38,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:00:38,930 INFO L93 Difference]: Finished difference Result 357 states and 463 transitions. [2022-12-14 09:00:38,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:00:38,930 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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 47 [2022-12-14 09:00:38,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:00:38,930 INFO L225 Difference]: With dead ends: 357 [2022-12-14 09:00:38,930 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 09:00:38,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:00:38,932 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 35 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:00:38,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 66 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:00:38,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 09:00:38,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 09:00:38,933 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 09:00:38,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 09:00:38,933 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 47 [2022-12-14 09:00:38,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:00:38,933 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 09:00:38,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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 09:00:38,934 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 09:00:38,934 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 09:00:38,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 09:00:38,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 09:00:38,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 09:00:39,376 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 847 854) no Hoare annotation was computed. [2022-12-14 09:00:39,376 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 847 854) the Hoare annotation is: true [2022-12-14 09:00:39,376 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 788 794) no Hoare annotation was computed. [2022-12-14 09:00:39,376 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 788 794) the Hoare annotation is: true [2022-12-14 09:00:39,377 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 490 501) the Hoare annotation is: true [2022-12-14 09:00:39,377 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 490 501) no Hoare annotation was computed. [2022-12-14 09:00:39,377 INFO L899 garLoopResultBuilder]: For program point L440(lines 440 450) no Hoare annotation was computed. [2022-12-14 09:00:39,377 INFO L895 garLoopResultBuilder]: At program point L436(lines 436 453) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (<= |old(~pumpRunning~0)| 0))) (.cse2 (not (<= 0 |old(~pumpRunning~0)|)))) (and (or (= |timeShift___utac_acc__Specification2_spec__2_~tmp~3#1| 0) .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2) (or .cse0 .cse1 .cse2 (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (<= 0 ~pumpRunning~0))))) [2022-12-14 09:00:39,377 INFO L895 garLoopResultBuilder]: At program point L436-1(lines 428 456) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (<= |old(~pumpRunning~0)| 0))) (.cse2 (not (<= 0 |old(~pumpRunning~0)|)))) (and (or (= |timeShift___utac_acc__Specification2_spec__2_~tmp~3#1| 0) .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2) (or .cse0 .cse1 .cse2 (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (<= 0 ~pumpRunning~0))))) [2022-12-14 09:00:39,377 INFO L899 garLoopResultBuilder]: For program point L775-1(lines 775 781) no Hoare annotation was computed. [2022-12-14 09:00:39,377 INFO L899 garLoopResultBuilder]: For program point L804(lines 804 812) no Hoare annotation was computed. [2022-12-14 09:00:39,377 INFO L895 garLoopResultBuilder]: At program point L800(lines 800 817) the Hoare annotation is: (or (not (= |old(~methAndRunningLastTime~0)| 0)) (not (<= |old(~pumpRunning~0)| 0)) (not (<= 0 |old(~pumpRunning~0)|)) (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (<= 0 ~pumpRunning~0))) [2022-12-14 09:00:39,377 INFO L899 garLoopResultBuilder]: For program point L441(lines 441 447) no Hoare annotation was computed. [2022-12-14 09:00:39,377 INFO L899 garLoopResultBuilder]: For program point L768-1(lines 767 786) no Hoare annotation was computed. [2022-12-14 09:00:39,378 INFO L895 garLoopResultBuilder]: At program point L950(line 950) the Hoare annotation is: (or (not (= |old(~methAndRunningLastTime~0)| 0)) (not (<= |old(~pumpRunning~0)| 0)) (not (<= 0 |old(~pumpRunning~0)|))) [2022-12-14 09:00:39,378 INFO L895 garLoopResultBuilder]: At program point L434(line 434) the Hoare annotation is: (or (not (= |old(~methAndRunningLastTime~0)| 0)) (not (<= |old(~pumpRunning~0)| 0)) (not (<= 0 |old(~pumpRunning~0)|)) (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (<= 0 ~pumpRunning~0))) [2022-12-14 09:00:39,378 INFO L899 garLoopResultBuilder]: For program point L434-1(line 434) no Hoare annotation was computed. [2022-12-14 09:00:39,378 INFO L895 garLoopResultBuilder]: At program point L810(line 810) the Hoare annotation is: (or (not (= |old(~methAndRunningLastTime~0)| 0)) (not (<= |old(~pumpRunning~0)| 0)) (not (<= 0 |old(~pumpRunning~0)|))) [2022-12-14 09:00:39,378 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 764 787) the Hoare annotation is: (or (not (= |old(~methAndRunningLastTime~0)| 0)) (not (<= |old(~pumpRunning~0)| 0)) (not (<= 0 |old(~pumpRunning~0)|)) (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (<= 0 ~pumpRunning~0))) [2022-12-14 09:00:39,378 INFO L895 garLoopResultBuilder]: At program point L806(line 806) the Hoare annotation is: (or (not (= |old(~methAndRunningLastTime~0)| 0)) (not (<= |old(~pumpRunning~0)| 0)) (not (<= 0 |old(~pumpRunning~0)|))) [2022-12-14 09:00:39,378 INFO L895 garLoopResultBuilder]: At program point L815(line 815) the Hoare annotation is: (or (not (= |old(~methAndRunningLastTime~0)| 0)) (not (<= |old(~pumpRunning~0)| 0)) (not (<= 0 |old(~pumpRunning~0)|)) (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (<= 0 ~pumpRunning~0))) [2022-12-14 09:00:39,378 INFO L895 garLoopResultBuilder]: At program point L815-1(lines 796 820) the Hoare annotation is: (or (not (= |old(~methAndRunningLastTime~0)| 0)) (not (<= |old(~pumpRunning~0)| 0)) (not (<= 0 |old(~pumpRunning~0)|)) (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (<= 0 ~pumpRunning~0))) [2022-12-14 09:00:39,378 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 764 787) no Hoare annotation was computed. [2022-12-14 09:00:39,378 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 950) no Hoare annotation was computed. [2022-12-14 09:00:39,379 INFO L899 garLoopResultBuilder]: For program point L576(line 576) no Hoare annotation was computed. [2022-12-14 09:00:39,379 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 555 584) no Hoare annotation was computed. [2022-12-14 09:00:39,379 INFO L899 garLoopResultBuilder]: For program point L569(lines 569 573) no Hoare annotation was computed. [2022-12-14 09:00:39,379 INFO L902 garLoopResultBuilder]: At program point L569-1(lines 569 573) the Hoare annotation is: true [2022-12-14 09:00:39,379 INFO L902 garLoopResultBuilder]: At program point L565-2(lines 565 579) the Hoare annotation is: true [2022-12-14 09:00:39,379 INFO L902 garLoopResultBuilder]: At program point L561(line 561) the Hoare annotation is: true [2022-12-14 09:00:39,379 INFO L899 garLoopResultBuilder]: For program point L561-1(line 561) no Hoare annotation was computed. [2022-12-14 09:00:39,379 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 555 584) the Hoare annotation is: true [2022-12-14 09:00:39,379 INFO L902 garLoopResultBuilder]: At program point L580(lines 555 584) the Hoare annotation is: true [2022-12-14 09:00:39,379 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 502 510) the Hoare annotation is: true [2022-12-14 09:00:39,379 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 502 510) no Hoare annotation was computed. [2022-12-14 09:00:39,379 INFO L902 garLoopResultBuilder]: At program point L642-2(lines 642 649) the Hoare annotation is: true [2022-12-14 09:00:39,379 INFO L895 garLoopResultBuilder]: At program point L936(line 936) the Hoare annotation is: false [2022-12-14 09:00:39,379 INFO L899 garLoopResultBuilder]: For program point L668(lines 667 714) no Hoare annotation was computed. [2022-12-14 09:00:39,379 INFO L899 garLoopResultBuilder]: For program point L697(lines 697 710) no Hoare annotation was computed. [2022-12-14 09:00:39,380 INFO L895 garLoopResultBuilder]: At program point L689(line 689) the Hoare annotation is: (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (<= 0 ~pumpRunning~0)) [2022-12-14 09:00:39,380 INFO L902 garLoopResultBuilder]: At program point L718(lines 657 722) the Hoare annotation is: true [2022-12-14 09:00:39,380 INFO L899 garLoopResultBuilder]: For program point L677(lines 677 683) no Hoare annotation was computed. [2022-12-14 09:00:39,380 INFO L899 garLoopResultBuilder]: For program point L677-1(lines 677 683) no Hoare annotation was computed. [2022-12-14 09:00:39,380 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 09:00:39,380 INFO L895 garLoopResultBuilder]: At program point L715(lines 666 716) the Hoare annotation is: false [2022-12-14 09:00:39,380 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2022-12-14 09:00:39,380 INFO L899 garLoopResultBuilder]: For program point L934(lines 934 940) no Hoare annotation was computed. [2022-12-14 09:00:39,380 INFO L895 garLoopResultBuilder]: At program point L934-1(lines 934 940) the Hoare annotation is: (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (<= 0 ~pumpRunning~0)) [2022-12-14 09:00:39,380 INFO L899 garLoopResultBuilder]: For program point L703(lines 703 709) no Hoare annotation was computed. [2022-12-14 09:00:39,380 INFO L895 garLoopResultBuilder]: At program point L703-2(lines 697 710) the Hoare annotation is: (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (<= 0 ~pumpRunning~0)) [2022-12-14 09:00:39,380 INFO L899 garLoopResultBuilder]: For program point L687(lines 687 693) no Hoare annotation was computed. [2022-12-14 09:00:39,380 INFO L899 garLoopResultBuilder]: For program point L687-1(lines 687 693) no Hoare annotation was computed. [2022-12-14 09:00:39,381 INFO L895 garLoopResultBuilder]: At program point L712(lines 667 714) the Hoare annotation is: (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (<= 0 ~pumpRunning~0)) [2022-12-14 09:00:39,381 INFO L895 garLoopResultBuilder]: At program point L679(line 679) the Hoare annotation is: (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (<= 0 ~pumpRunning~0)) [2022-12-14 09:00:39,381 INFO L895 garLoopResultBuilder]: At program point L642(lines 642 649) the Hoare annotation is: (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (<= 0 ~pumpRunning~0)) [2022-12-14 09:00:39,381 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 478 489) no Hoare annotation was computed. [2022-12-14 09:00:39,381 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 478 489) the Hoare annotation is: true [2022-12-14 09:00:39,383 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-12-14 09:00:39,385 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 09:00:39,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 09:00:39 BoogieIcfgContainer [2022-12-14 09:00:39,396 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 09:00:39,397 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 09:00:39,397 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 09:00:39,397 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 09:00:39,397 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:00:37" (3/4) ... [2022-12-14 09:00:39,399 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 09:00:39,403 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-12-14 09:00:39,403 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-12-14 09:00:39,403 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-12-14 09:00:39,403 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-12-14 09:00:39,403 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-12-14 09:00:39,403 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-12-14 09:00:39,404 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-12-14 09:00:39,408 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 42 nodes and edges [2022-12-14 09:00:39,408 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-12-14 09:00:39,408 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-14 09:00:39,408 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 09:00:39,408 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 09:00:39,425 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning))) || ((pumpRunning <= 0 && methAndRunningLastTime == 0) && 0 <= pumpRunning) [2022-12-14 09:00:39,425 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning))) || ((pumpRunning <= 0 && methAndRunningLastTime == 0) && 0 <= pumpRunning) [2022-12-14 09:00:39,426 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning))) || ((pumpRunning <= 0 && methAndRunningLastTime == 0) && 0 <= pumpRunning) [2022-12-14 09:00:39,426 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((tmp == 0 || !(\old(methAndRunningLastTime) == 0)) || !(\old(pumpRunning) <= 0)) || !(methaneLevelCritical == 0)) || !(0 <= \old(pumpRunning))) && (((!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning))) || ((pumpRunning <= 0 && methAndRunningLastTime == 0) && 0 <= pumpRunning)) [2022-12-14 09:00:39,426 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((tmp == 0 || !(\old(methAndRunningLastTime) == 0)) || !(\old(pumpRunning) <= 0)) || !(methaneLevelCritical == 0)) || !(0 <= \old(pumpRunning))) && (((!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning))) || ((pumpRunning <= 0 && methAndRunningLastTime == 0) && 0 <= pumpRunning)) [2022-12-14 09:00:39,426 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning)) [2022-12-14 09:00:39,440 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545231b2-683f-4b77-b944-0c807987ee46/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 09:00:39,440 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 09:00:39,441 INFO L158 Benchmark]: Toolchain (without parser) took 2490.57ms. Allocated memory is still 192.9MB. Free memory was 151.9MB in the beginning and 81.8MB in the end (delta: 70.1MB). Peak memory consumption was 73.0MB. Max. memory is 16.1GB. [2022-12-14 09:00:39,441 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 107.0MB. Free memory is still 79.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:00:39,441 INFO L158 Benchmark]: CACSL2BoogieTranslator took 306.46ms. Allocated memory is still 192.9MB. Free memory was 151.7MB in the beginning and 133.0MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 09:00:39,441 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.52ms. Allocated memory is still 192.9MB. Free memory was 133.0MB in the beginning and 131.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:00:39,441 INFO L158 Benchmark]: Boogie Preprocessor took 18.78ms. Allocated memory is still 192.9MB. Free memory was 131.0MB in the beginning and 129.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:00:39,442 INFO L158 Benchmark]: RCFGBuilder took 376.20ms. Allocated memory is still 192.9MB. Free memory was 129.5MB in the beginning and 108.0MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-14 09:00:39,442 INFO L158 Benchmark]: TraceAbstraction took 1709.32ms. Allocated memory is still 192.9MB. Free memory was 107.6MB in the beginning and 87.0MB in the end (delta: 20.6MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. [2022-12-14 09:00:39,442 INFO L158 Benchmark]: Witness Printer took 43.88ms. Allocated memory is still 192.9MB. Free memory was 87.0MB in the beginning and 81.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-14 09:00:39,443 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 107.0MB. Free memory is still 79.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 306.46ms. Allocated memory is still 192.9MB. Free memory was 151.7MB in the beginning and 133.0MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.52ms. Allocated memory is still 192.9MB. Free memory was 133.0MB in the beginning and 131.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.78ms. Allocated memory is still 192.9MB. Free memory was 131.0MB in the beginning and 129.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 376.20ms. Allocated memory is still 192.9MB. Free memory was 129.5MB in the beginning and 108.0MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1709.32ms. Allocated memory is still 192.9MB. Free memory was 107.6MB in the beginning and 87.0MB in the end (delta: 20.6MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. * Witness Printer took 43.88ms. Allocated memory is still 192.9MB. Free memory was 87.0MB in the beginning and 81.8MB in the end (delta: 5.2MB). 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: 950]: 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 8 procedures, 57 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 163 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 156 mSDsluCounter, 613 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 328 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 253 IncrementalHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 285 mSDtfsCounter, 253 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=231occurred in iteration=5, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 31 LocationsWithAnnotation, 287 PreInvPairs, 324 NumberOfFragments, 338 HoareAnnotationTreeSize, 287 FomulaSimplifications, 48 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 31 FomulaSimplificationsInter, 1568 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 368 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 18/18 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: 428]: Loop Invariant Derived loop invariant: ((((tmp == 0 || !(\old(methAndRunningLastTime) == 0)) || !(\old(pumpRunning) <= 0)) || !(methaneLevelCritical == 0)) || !(0 <= \old(pumpRunning))) && (((!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning))) || ((pumpRunning <= 0 && methAndRunningLastTime == 0) && 0 <= pumpRunning)) - InvariantResult [Line: 555]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 565]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 642]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 800]: Loop Invariant Derived loop invariant: ((!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning))) || ((pumpRunning <= 0 && methAndRunningLastTime == 0) && 0 <= pumpRunning) - InvariantResult [Line: 657]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 642]: Loop Invariant Derived loop invariant: (((pumpRunning <= 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) && 0 <= pumpRunning - InvariantResult [Line: 666]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 796]: Loop Invariant Derived loop invariant: ((!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning))) || ((pumpRunning <= 0 && methAndRunningLastTime == 0) && 0 <= pumpRunning) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 436]: Loop Invariant Derived loop invariant: ((((tmp == 0 || !(\old(methAndRunningLastTime) == 0)) || !(\old(pumpRunning) <= 0)) || !(methaneLevelCritical == 0)) || !(0 <= \old(pumpRunning))) && (((!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning))) || ((pumpRunning <= 0 && methAndRunningLastTime == 0) && 0 <= pumpRunning)) - InvariantResult [Line: 667]: Loop Invariant Derived loop invariant: ((pumpRunning <= 0 && methAndRunningLastTime == 0) && splverifierCounter == 0) && 0 <= pumpRunning - InvariantResult [Line: 764]: Loop Invariant Derived loop invariant: ((!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning))) || ((pumpRunning <= 0 && methAndRunningLastTime == 0) && 0 <= pumpRunning) - InvariantResult [Line: 950]: Loop Invariant Derived loop invariant: (!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning)) - InvariantResult [Line: 934]: Loop Invariant Derived loop invariant: ((pumpRunning <= 0 && methAndRunningLastTime == 0) && splverifierCounter == 0) && 0 <= pumpRunning RESULT: Ultimate proved your program to be correct! [2022-12-14 09:00:39,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545231b2-683f-4b77-b944-0c807987ee46/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE