./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product08.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df5568c-3d16-4c6d-bae7-b728a08dfe2c/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df5568c-3d16-4c6d-bae7-b728a08dfe2c/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df5568c-3d16-4c6d-bae7-b728a08dfe2c/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df5568c-3d16-4c6d-bae7-b728a08dfe2c/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product08.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df5568c-3d16-4c6d-bae7-b728a08dfe2c/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df5568c-3d16-4c6d-bae7-b728a08dfe2c/bin/utaipan-Q6hlc19bkW --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 87d91e56d61e49620ea5a2c0236a89cbd5cce3c0ef7c136160e7b734dcc26431 --- 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-4e7fbc6 [2022-11-23 14:43:24,177 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:43:24,179 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:43:24,205 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:43:24,205 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:43:24,206 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:43:24,207 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:43:24,209 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:43:24,216 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:43:24,222 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:43:24,223 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:43:24,226 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:43:24,227 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:43:24,230 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:43:24,233 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:43:24,235 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:43:24,237 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:43:24,238 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:43:24,240 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:43:24,248 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:43:24,250 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:43:24,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:43:24,254 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:43:24,255 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:43:24,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:43:24,264 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:43:24,264 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:43:24,265 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:43:24,266 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:43:24,267 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:43:24,267 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:43:24,268 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:43:24,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:43:24,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:43:24,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:43:24,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:43:24,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:43:24,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:43:24,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:43:24,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:43:24,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:43:24,280 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df5568c-3d16-4c6d-bae7-b728a08dfe2c/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 14:43:24,314 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:43:24,315 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:43:24,315 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:43:24,315 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:43:24,316 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:43:24,316 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:43:24,317 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:43:24,317 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:43:24,317 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:43:24,317 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:43:24,318 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:43:24,325 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:43:24,326 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:43:24,326 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:43:24,326 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:43:24,327 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:43:24,327 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:43:24,327 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:43:24,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:43:24,328 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:43:24,329 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:43:24,329 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:43:24,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:43:24,329 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:43:24,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:43:24,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:43:24,330 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:43:24,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:43:24,331 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:43:24,331 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:43:24,331 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:43:24,332 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:43:24,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:43:24,332 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:43:24,332 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:43:24,333 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:43:24,333 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:43:24,333 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:43:24,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:43:24,334 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:43:24,334 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:43:24,334 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_1df5568c-3d16-4c6d-bae7-b728a08dfe2c/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df5568c-3d16-4c6d-bae7-b728a08dfe2c/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87d91e56d61e49620ea5a2c0236a89cbd5cce3c0ef7c136160e7b734dcc26431 [2022-11-23 14:43:24,572 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:43:24,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:43:24,610 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:43:24,611 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:43:24,612 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:43:24,613 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df5568c-3d16-4c6d-bae7-b728a08dfe2c/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/product-lines/minepump_spec2_product08.cil.c [2022-11-23 14:43:27,584 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:43:27,913 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:43:27,914 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df5568c-3d16-4c6d-bae7-b728a08dfe2c/sv-benchmarks/c/product-lines/minepump_spec2_product08.cil.c [2022-11-23 14:43:27,924 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df5568c-3d16-4c6d-bae7-b728a08dfe2c/bin/utaipan-Q6hlc19bkW/data/6102a187e/2976312ba4cd4922a5270f03f569d88b/FLAG58a749898 [2022-11-23 14:43:28,238 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df5568c-3d16-4c6d-bae7-b728a08dfe2c/bin/utaipan-Q6hlc19bkW/data/6102a187e/2976312ba4cd4922a5270f03f569d88b [2022-11-23 14:43:28,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:43:28,245 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:43:28,249 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:43:28,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:43:28,256 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:43:28,257 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:43:28" (1/1) ... [2022-11-23 14:43:28,258 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f4ea512 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:28, skipping insertion in model container [2022-11-23 14:43:28,258 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:43:28" (1/1) ... [2022-11-23 14:43:28,266 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:43:28,297 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:43:28,549 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_1df5568c-3d16-4c6d-bae7-b728a08dfe2c/sv-benchmarks/c/product-lines/minepump_spec2_product08.cil.c[13819,13832] [2022-11-23 14:43:28,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:43:28,609 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:43:28,671 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_1df5568c-3d16-4c6d-bae7-b728a08dfe2c/sv-benchmarks/c/product-lines/minepump_spec2_product08.cil.c[13819,13832] [2022-11-23 14:43:28,689 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:43:28,714 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:43:28,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:28 WrapperNode [2022-11-23 14:43:28,715 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:43:28,717 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:43:28,718 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:43:28,718 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:43:28,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:28" (1/1) ... [2022-11-23 14:43:28,745 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:28" (1/1) ... [2022-11-23 14:43:28,768 INFO L138 Inliner]: procedures = 53, calls = 96, calls flagged for inlining = 20, calls inlined = 17, statements flattened = 159 [2022-11-23 14:43:28,769 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:43:28,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:43:28,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:43:28,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:43:28,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:28" (1/1) ... [2022-11-23 14:43:28,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:28" (1/1) ... [2022-11-23 14:43:28,786 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:28" (1/1) ... [2022-11-23 14:43:28,787 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:28" (1/1) ... [2022-11-23 14:43:28,792 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:28" (1/1) ... [2022-11-23 14:43:28,799 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:28" (1/1) ... [2022-11-23 14:43:28,801 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:28" (1/1) ... [2022-11-23 14:43:28,802 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:28" (1/1) ... [2022-11-23 14:43:28,807 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:43:28,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:43:28,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:43:28,808 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:43:28,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:28" (1/1) ... [2022-11-23 14:43:28,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:43:28,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df5568c-3d16-4c6d-bae7-b728a08dfe2c/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:43:28,876 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df5568c-3d16-4c6d-bae7-b728a08dfe2c/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:43:28,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df5568c-3d16-4c6d-bae7-b728a08dfe2c/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:43:28,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:43:28,939 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-23 14:43:28,939 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-23 14:43:28,939 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-23 14:43:28,939 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-23 14:43:28,940 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-23 14:43:28,940 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-23 14:43:28,940 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-23 14:43:28,940 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-23 14:43:28,940 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-23 14:43:28,940 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-23 14:43:28,941 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-23 14:43:28,941 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-23 14:43:28,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:43:28,941 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-23 14:43:28,941 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-23 14:43:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:43:28,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:43:29,042 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:43:29,045 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:43:29,272 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:43:29,479 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:43:29,479 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 14:43:29,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:43:29 BoogieIcfgContainer [2022-11-23 14:43:29,482 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:43:29,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:43:29,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:43:29,505 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:43:29,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:43:28" (1/3) ... [2022-11-23 14:43:29,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f313d03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:43:29, skipping insertion in model container [2022-11-23 14:43:29,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:28" (2/3) ... [2022-11-23 14:43:29,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f313d03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:43:29, skipping insertion in model container [2022-11-23 14:43:29,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:43:29" (3/3) ... [2022-11-23 14:43:29,512 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product08.cil.c [2022-11-23 14:43:29,534 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:43:29,534 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:43:29,596 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:43:29,604 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;@3ddbfb34, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:43:29,604 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:43:29,610 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 38 states have (on average 1.4473684210526316) internal successors, (55), 45 states have internal predecessors, (55), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-23 14:43:29,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-23 14:43:29,621 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:43:29,622 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:43:29,622 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:43:29,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:43:29,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1767432611, now seen corresponding path program 1 times [2022-11-23 14:43:29,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:43:29,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678408759] [2022-11-23 14:43:29,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:43:29,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:43:29,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:43:30,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:43:30,057 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:43:30,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678408759] [2022-11-23 14:43:30,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678408759] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:43:30,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:43:30,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:43:30,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439002278] [2022-11-23 14:43:30,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:43:30,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:43:30,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:43:30,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:43:30,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:43:30,128 INFO L87 Difference]: Start difference. First operand has 59 states, 38 states have (on average 1.4473684210526316) internal successors, (55), 45 states have internal predecessors, (55), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) 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) [2022-11-23 14:43:30,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:43:30,260 INFO L93 Difference]: Finished difference Result 116 states and 159 transitions. [2022-11-23 14:43:30,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:43:30,263 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 [2022-11-23 14:43:30,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:43:30,272 INFO L225 Difference]: With dead ends: 116 [2022-11-23 14:43:30,272 INFO L226 Difference]: Without dead ends: 54 [2022-11-23 14:43:30,277 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 [2022-11-23 14:43:30,282 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:43:30,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 60 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:43:30,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-23 14:43:30,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-11-23 14:43:30,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 35 states have (on average 1.3428571428571427) internal successors, (47), 41 states have internal predecessors, (47), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-23 14:43:30,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 70 transitions. [2022-11-23 14:43:30,340 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 70 transitions. Word has length 17 [2022-11-23 14:43:30,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:43:30,341 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 70 transitions. [2022-11-23 14:43:30,342 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) [2022-11-23 14:43:30,343 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 70 transitions. [2022-11-23 14:43:30,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-23 14:43:30,347 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:43:30,348 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:43:30,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:43:30,349 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:43:30,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:43:30,353 INFO L85 PathProgramCache]: Analyzing trace with hash -455161397, now seen corresponding path program 1 times [2022-11-23 14:43:30,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:43:30,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712665128] [2022-11-23 14:43:30,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:43:30,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:43:30,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:43:30,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:43:30,512 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:43:30,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712665128] [2022-11-23 14:43:30,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712665128] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:43:30,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:43:30,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:43:30,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513234609] [2022-11-23 14:43:30,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:43:30,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:43:30,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:43:30,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:43:30,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:43:30,518 INFO L87 Difference]: Start difference. First operand 54 states and 70 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) [2022-11-23 14:43:30,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:43:30,572 INFO L93 Difference]: Finished difference Result 80 states and 102 transitions. [2022-11-23 14:43:30,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:43:30,573 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 [2022-11-23 14:43:30,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:43:30,575 INFO L225 Difference]: With dead ends: 80 [2022-11-23 14:43:30,575 INFO L226 Difference]: Without dead ends: 46 [2022-11-23 14:43:30,576 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 [2022-11-23 14:43:30,578 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 14 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:43:30,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 76 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:43:30,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-23 14:43:30,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-23 14:43:30,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 36 states have internal predecessors, (41), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-23 14:43:30,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 59 transitions. [2022-11-23 14:43:30,592 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 59 transitions. Word has length 18 [2022-11-23 14:43:30,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:43:30,592 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 59 transitions. [2022-11-23 14:43:30,593 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) [2022-11-23 14:43:30,593 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 59 transitions. [2022-11-23 14:43:30,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 14:43:30,595 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:43:30,595 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] [2022-11-23 14:43:30,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:43:30,596 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:43:30,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:43:30,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1851744052, now seen corresponding path program 1 times [2022-11-23 14:43:30,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:43:30,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841770537] [2022-11-23 14:43:30,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:43:30,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:43:30,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:43:30,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:43:30,762 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:43:30,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841770537] [2022-11-23 14:43:30,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841770537] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:43:30,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:43:30,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:43:30,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967665200] [2022-11-23 14:43:30,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:43:30,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:43:30,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:43:30,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:43:30,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:43:30,767 INFO L87 Difference]: Start difference. First operand 46 states and 59 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) [2022-11-23 14:43:30,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:43:30,888 INFO L93 Difference]: Finished difference Result 134 states and 174 transitions. [2022-11-23 14:43:30,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:43:30,889 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 [2022-11-23 14:43:30,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:43:30,892 INFO L225 Difference]: With dead ends: 134 [2022-11-23 14:43:30,892 INFO L226 Difference]: Without dead ends: 90 [2022-11-23 14:43:30,893 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 [2022-11-23 14:43:30,895 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 53 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:43:30,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 107 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:43:30,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-11-23 14:43:30,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 87. [2022-11-23 14:43:30,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 56 states have (on average 1.375) internal successors, (77), 67 states have internal predecessors, (77), 18 states have call successors, (18), 12 states have call predecessors, (18), 12 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-23 14:43:30,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 113 transitions. [2022-11-23 14:43:30,922 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 113 transitions. Word has length 21 [2022-11-23 14:43:30,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:43:30,922 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 113 transitions. [2022-11-23 14:43:30,923 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) [2022-11-23 14:43:30,923 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 113 transitions. [2022-11-23 14:43:30,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-23 14:43:30,925 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:43:30,925 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] [2022-11-23 14:43:30,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:43:30,926 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:43:30,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:43:30,927 INFO L85 PathProgramCache]: Analyzing trace with hash -69900876, now seen corresponding path program 1 times [2022-11-23 14:43:30,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:43:30,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702714375] [2022-11-23 14:43:30,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:43:30,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:43:30,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:43:31,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:43:31,100 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:43:31,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702714375] [2022-11-23 14:43:31,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702714375] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:43:31,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:43:31,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:43:31,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199629411] [2022-11-23 14:43:31,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:43:31,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:43:31,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:43:31,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:43:31,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:43:31,105 INFO L87 Difference]: Start difference. First operand 87 states and 113 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 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) [2022-11-23 14:43:31,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:43:31,259 INFO L93 Difference]: Finished difference Result 172 states and 228 transitions. [2022-11-23 14:43:31,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:43:31,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 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 [2022-11-23 14:43:31,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:43:31,264 INFO L225 Difference]: With dead ends: 172 [2022-11-23 14:43:31,264 INFO L226 Difference]: Without dead ends: 170 [2022-11-23 14:43:31,265 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 [2022-11-23 14:43:31,267 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 35 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:43:31,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 97 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:43:31,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-11-23 14:43:31,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2022-11-23 14:43:31,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 109 states have (on average 1.3669724770642202) internal successors, (149), 130 states have internal predecessors, (149), 36 states have call successors, (36), 24 states have call predecessors, (36), 24 states have return successors, (40), 26 states have call predecessors, (40), 36 states have call successors, (40) [2022-11-23 14:43:31,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 225 transitions. [2022-11-23 14:43:31,306 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 225 transitions. Word has length 24 [2022-11-23 14:43:31,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:43:31,307 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 225 transitions. [2022-11-23 14:43:31,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 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) [2022-11-23 14:43:31,308 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 225 transitions. [2022-11-23 14:43:31,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-23 14:43:31,311 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:43:31,311 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:43:31,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 14:43:31,312 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:43:31,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:43:31,313 INFO L85 PathProgramCache]: Analyzing trace with hash 2010816781, now seen corresponding path program 1 times [2022-11-23 14:43:31,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:43:31,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945444272] [2022-11-23 14:43:31,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:43:31,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:43:31,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:43:31,618 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:43:31,618 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:43:31,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945444272] [2022-11-23 14:43:31,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945444272] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:43:31,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064272260] [2022-11-23 14:43:31,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:43:31,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:43:31,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df5568c-3d16-4c6d-bae7-b728a08dfe2c/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:43:31,627 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df5568c-3d16-4c6d-bae7-b728a08dfe2c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:43:31,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df5568c-3d16-4c6d-bae7-b728a08dfe2c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:43:31,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:43:31,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-23 14:43:31,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:43:31,991 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 14:43:31,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:43:32,220 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 14:43:32,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1064272260] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:43:32,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [356206448] [2022-11-23 14:43:32,254 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2022-11-23 14:43:32,254 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:43:32,259 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:43:32,265 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:43:32,265 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:43:35,355 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 124 for LOIs [2022-11-23 14:43:35,797 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 114 for LOIs [2022-11-23 14:43:35,809 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:43:45,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [356206448] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:43:45,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:43:45,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [7, 5, 5] total 27 [2022-11-23 14:43:45,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378149429] [2022-11-23 14:43:45,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:43:45,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-23 14:43:45,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:43:45,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-23 14:43:45,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=549, Unknown=0, NotChecked=0, Total=702 [2022-11-23 14:43:45,396 INFO L87 Difference]: Start difference. First operand 170 states and 225 transitions. Second operand has 18 states, 16 states have (on average 1.5) internal successors, (24), 15 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 14:43:49,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:43:49,455 INFO L93 Difference]: Finished difference Result 403 states and 544 transitions. [2022-11-23 14:43:49,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-23 14:43:49,456 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 1.5) internal successors, (24), 15 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2022-11-23 14:43:49,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:43:49,469 INFO L225 Difference]: With dead ends: 403 [2022-11-23 14:43:49,469 INFO L226 Difference]: Without dead ends: 235 [2022-11-23 14:43:49,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 113 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=185, Invalid=685, Unknown=0, NotChecked=0, Total=870 [2022-11-23 14:43:49,476 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 60 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:43:49,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 308 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-23 14:43:49,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2022-11-23 14:43:49,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 216. [2022-11-23 14:43:49,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 145 states have (on average 1.3448275862068966) internal successors, (195), 166 states have internal predecessors, (195), 41 states have call successors, (41), 29 states have call predecessors, (41), 29 states have return successors, (46), 31 states have call predecessors, (46), 41 states have call successors, (46) [2022-11-23 14:43:49,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 282 transitions. [2022-11-23 14:43:49,586 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 282 transitions. Word has length 45 [2022-11-23 14:43:49,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:43:49,587 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 282 transitions. [2022-11-23 14:43:49,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 1.5) internal successors, (24), 15 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 14:43:49,587 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 282 transitions. [2022-11-23 14:43:49,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-23 14:43:49,594 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:43:49,594 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:43:49,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df5568c-3d16-4c6d-bae7-b728a08dfe2c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:43:49,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df5568c-3d16-4c6d-bae7-b728a08dfe2c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:43:49,795 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:43:49,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:43:49,796 INFO L85 PathProgramCache]: Analyzing trace with hash 774420613, now seen corresponding path program 1 times [2022-11-23 14:43:49,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:43:49,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019631209] [2022-11-23 14:43:49,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:43:49,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:43:49,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:43:50,018 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:43:50,018 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:43:50,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019631209] [2022-11-23 14:43:50,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019631209] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:43:50,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318761536] [2022-11-23 14:43:50,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:43:50,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:43:50,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df5568c-3d16-4c6d-bae7-b728a08dfe2c/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:43:50,021 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df5568c-3d16-4c6d-bae7-b728a08dfe2c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:43:50,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df5568c-3d16-4c6d-bae7-b728a08dfe2c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 14:43:50,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:43:50,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-23 14:43:50,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:43:50,247 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 14:43:50,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:43:50,379 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 14:43:50,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318761536] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:43:50,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1799523386] [2022-11-23 14:43:50,381 INFO L159 IcfgInterpreter]: Started Sifa with 30 locations of interest [2022-11-23 14:43:50,381 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:43:50,382 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:43:50,382 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:43:50,382 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:43:54,044 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 116 for LOIs [2022-11-23 14:43:54,057 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 32 for LOIs [2022-11-23 14:43:54,117 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 23 for LOIs [2022-11-23 14:43:54,119 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:44:04,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1799523386] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:44:04,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:44:04,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [7, 5, 5] total 30 [2022-11-23 14:44:04,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698468305] [2022-11-23 14:44:04,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:44:04,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-23 14:44:04,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:44:04,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-23 14:44:04,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=717, Unknown=0, NotChecked=0, Total=870 [2022-11-23 14:44:04,098 INFO L87 Difference]: Start difference. First operand 216 states and 282 transitions. Second operand has 21 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 17 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 14:44:11,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:44:11,742 INFO L93 Difference]: Finished difference Result 478 states and 640 transitions. [2022-11-23 14:44:11,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-23 14:44:11,744 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 17 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 48 [2022-11-23 14:44:11,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:44:11,753 INFO L225 Difference]: With dead ends: 478 [2022-11-23 14:44:11,754 INFO L226 Difference]: Without dead ends: 310 [2022-11-23 14:44:11,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 118 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 15.5s TimeCoverageRelationStatistics Valid=309, Invalid=1413, Unknown=0, NotChecked=0, Total=1722 [2022-11-23 14:44:11,763 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 122 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 1107 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 1184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:44:11,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 469 Invalid, 1184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1107 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-23 14:44:11,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2022-11-23 14:44:11,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 244. [2022-11-23 14:44:11,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 163 states have (on average 1.3374233128834356) internal successors, (218), 186 states have internal predecessors, (218), 46 states have call successors, (46), 34 states have call predecessors, (46), 34 states have return successors, (52), 35 states have call predecessors, (52), 46 states have call successors, (52) [2022-11-23 14:44:11,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 316 transitions. [2022-11-23 14:44:11,849 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 316 transitions. Word has length 48 [2022-11-23 14:44:11,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:44:11,849 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 316 transitions. [2022-11-23 14:44:11,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 17 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 14:44:11,850 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 316 transitions. [2022-11-23 14:44:11,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-23 14:44:11,852 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:44:11,852 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:44:11,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df5568c-3d16-4c6d-bae7-b728a08dfe2c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 14:44:12,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df5568c-3d16-4c6d-bae7-b728a08dfe2c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-23 14:44:12,060 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:44:12,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:44:12,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1256050010, now seen corresponding path program 1 times [2022-11-23 14:44:12,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:44:12,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496323532] [2022-11-23 14:44:12,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:12,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:44:12,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:12,300 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 14:44:12,301 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:44:12,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496323532] [2022-11-23 14:44:12,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496323532] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:44:12,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:44:12,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 14:44:12,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408634073] [2022-11-23 14:44:12,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:44:12,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:44:12,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:44:12,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:44:12,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:44:12,305 INFO L87 Difference]: Start difference. First operand 244 states and 316 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-23 14:44:12,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:44:12,472 INFO L93 Difference]: Finished difference Result 317 states and 410 transitions. [2022-11-23 14:44:12,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:44:12,473 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 48 [2022-11-23 14:44:12,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:44:12,473 INFO L225 Difference]: With dead ends: 317 [2022-11-23 14:44:12,473 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 14:44:12,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:44:12,477 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 35 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:44:12,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 46 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:44:12,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 14:44:12,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 14:44:12,481 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) [2022-11-23 14:44:12,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 14:44:12,481 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2022-11-23 14:44:12,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:44:12,482 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 14:44:12,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-23 14:44:12,482 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 14:44:12,482 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 14:44:12,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 14:44:12,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 14:44:12,489 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 14:44:21,312 INFO L902 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 831 838) the Hoare annotation is: true [2022-11-23 14:44:21,313 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 831 838) no Hoare annotation was computed. [2022-11-23 14:44:21,313 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 790 796) no Hoare annotation was computed. [2022-11-23 14:44:21,313 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 790 796) the Hoare annotation is: true [2022-11-23 14:44:21,313 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 552 563) the Hoare annotation is: true [2022-11-23 14:44:21,313 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 552 563) no Hoare annotation was computed. [2022-11-23 14:44:21,314 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 564 572) the Hoare annotation is: true [2022-11-23 14:44:21,314 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 564 572) no Hoare annotation was computed. [2022-11-23 14:44:21,314 INFO L899 garLoopResultBuilder]: For program point L770-1(lines 769 788) no Hoare annotation was computed. [2022-11-23 14:44:21,315 INFO L895 garLoopResultBuilder]: At program point L812(line 812) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0))) [2022-11-23 14:44:21,315 INFO L895 garLoopResultBuilder]: At program point L808(line 808) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0))) [2022-11-23 14:44:21,315 INFO L895 garLoopResultBuilder]: At program point L610(line 610) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0))) [2022-11-23 14:44:21,315 INFO L899 garLoopResultBuilder]: For program point L672(lines 672 682) no Hoare annotation was computed. [2022-11-23 14:44:21,316 INFO L895 garLoopResultBuilder]: At program point L668(lines 668 685) the Hoare annotation is: (let ((.cse1 (not (= |#NULL.offset| 0))) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (not (= ~head~0.offset 0))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (= |#NULL.base| 0))) (.cse7 (not (<= 0 |#StackHeapBarrier|))) (.cse8 (not (= ~head~0.base 0))) (.cse9 (not (= ~cleanupTimeShifts~0 4))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= |old(~methAndRunningLastTime~0)| 0)))) (and (or .cse0 .cse1 .cse2 (not (= 1 ~systemActive~0)) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) (or .cse0 .cse1 .cse2 (and (<= |timeShift___utac_acc__Specification2_spec__2_~tmp~4#1| 0) .cse6 (<= 0 |timeShift___utac_acc__Specification2_spec__2_~tmp~4#1|)) .cse3 .cse4 .cse5 .cse7 .cse8 (not (= 0 ~systemActive~0)) .cse9) (or .cse0 .cse2 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))))) [2022-11-23 14:44:21,316 INFO L895 garLoopResultBuilder]: At program point L668-1(lines 660 688) the Hoare annotation is: (let ((.cse1 (not (= |#NULL.offset| 0))) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (not (= ~head~0.offset 0))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (= |#NULL.base| 0))) (.cse7 (not (<= 0 |#StackHeapBarrier|))) (.cse8 (not (= ~head~0.base 0))) (.cse9 (not (= ~cleanupTimeShifts~0 4))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= |old(~methAndRunningLastTime~0)| 0)))) (and (or .cse0 .cse1 .cse2 (not (= 1 ~systemActive~0)) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) (or .cse0 .cse1 .cse2 (and (<= |timeShift___utac_acc__Specification2_spec__2_~tmp~4#1| 0) .cse6 (<= 0 |timeShift___utac_acc__Specification2_spec__2_~tmp~4#1|)) .cse3 .cse4 .cse5 .cse7 .cse8 (not (= 0 ~systemActive~0)) .cse9) (or .cse0 .cse2 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))))) [2022-11-23 14:44:21,317 INFO L895 garLoopResultBuilder]: At program point L817(line 817) the Hoare annotation is: (let ((.cse1 (not (= |#NULL.offset| 0))) (.cse3 (not (= ~head~0.offset 0))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (= |#NULL.base| 0))) (.cse6 (not (<= 0 |#StackHeapBarrier|))) (.cse7 (not (= ~head~0.base 0))) (.cse8 (not (= ~cleanupTimeShifts~0 4))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= |old(~methAndRunningLastTime~0)| 0)))) (and (or .cse0 .cse1 .cse2 (not (= 1 ~systemActive~0)) .cse3 .cse4 .cse5 (= |old(~waterLevel~0)| ~waterLevel~0) .cse6 .cse7 .cse8) (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (not (= 0 ~systemActive~0)) .cse8) (or .cse0 .cse2 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))))) [2022-11-23 14:44:21,317 INFO L895 garLoopResultBuilder]: At program point L817-1(lines 798 822) the Hoare annotation is: (let ((.cse1 (not (= |#NULL.offset| 0))) (.cse3 (not (= ~head~0.offset 0))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (= |#NULL.base| 0))) (.cse6 (not (<= 0 |#StackHeapBarrier|))) (.cse7 (not (= ~head~0.base 0))) (.cse8 (not (= ~cleanupTimeShifts~0 4))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= |old(~methAndRunningLastTime~0)| 0)))) (and (or .cse0 .cse1 .cse2 (not (= 1 ~systemActive~0)) .cse3 .cse4 .cse5 (= |old(~waterLevel~0)| ~waterLevel~0) .cse6 .cse7 .cse8) (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (not (= 0 ~systemActive~0)) .cse8) (or .cse0 .cse2 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))))) [2022-11-23 14:44:21,318 INFO L899 garLoopResultBuilder]: For program point L673(lines 673 679) no Hoare annotation was computed. [2022-11-23 14:44:21,318 INFO L899 garLoopResultBuilder]: For program point L777-1(lines 777 783) no Hoare annotation was computed. [2022-11-23 14:44:21,318 INFO L899 garLoopResultBuilder]: For program point L806(lines 806 814) no Hoare annotation was computed. [2022-11-23 14:44:21,318 INFO L899 garLoopResultBuilder]: For program point L802(lines 802 819) no Hoare annotation was computed. [2022-11-23 14:44:21,319 INFO L895 garLoopResultBuilder]: At program point L666(line 666) the Hoare annotation is: (let ((.cse1 (not (= |#NULL.offset| 0))) (.cse3 (not (= ~head~0.offset 0))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (= |#NULL.base| 0))) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (not (<= 0 |#StackHeapBarrier|))) (.cse8 (not (= ~head~0.base 0))) (.cse9 (not (= ~cleanupTimeShifts~0 4))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= |old(~methAndRunningLastTime~0)| 0)))) (and (or .cse0 .cse1 .cse2 (not (= 1 ~systemActive~0)) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (not (= 0 ~systemActive~0)) .cse9) (or .cse0 .cse2 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))))) [2022-11-23 14:44:21,319 INFO L899 garLoopResultBuilder]: For program point L666-1(line 666) no Hoare annotation was computed. [2022-11-23 14:44:21,320 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 766 789) the Hoare annotation is: (let ((.cse1 (not (= |#NULL.offset| 0))) (.cse3 (not (= ~head~0.offset 0))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (= |#NULL.base| 0))) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (not (<= 0 |#StackHeapBarrier|))) (.cse8 (not (= ~head~0.base 0))) (.cse9 (not (= ~cleanupTimeShifts~0 4))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= |old(~methAndRunningLastTime~0)| 0)))) (and (or .cse0 .cse1 .cse2 (not (= 1 ~systemActive~0)) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (not (= 0 ~systemActive~0)) .cse9) (or .cse0 .cse2 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))))) [2022-11-23 14:44:21,320 INFO L895 garLoopResultBuilder]: At program point L844(line 844) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0))) [2022-11-23 14:44:21,320 INFO L895 garLoopResultBuilder]: At program point L844-1(line 844) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0))) [2022-11-23 14:44:21,320 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 766 789) no Hoare annotation was computed. [2022-11-23 14:44:21,321 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 610) no Hoare annotation was computed. [2022-11-23 14:44:21,321 INFO L902 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: true [2022-11-23 14:44:21,321 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 52 81) no Hoare annotation was computed. [2022-11-23 14:44:21,321 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 52 81) the Hoare annotation is: true [2022-11-23 14:44:21,321 INFO L902 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: true [2022-11-23 14:44:21,322 INFO L902 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2022-11-23 14:44:21,322 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2022-11-23 14:44:21,322 INFO L902 garLoopResultBuilder]: At program point L77(lines 52 81) the Hoare annotation is: true [2022-11-23 14:44:21,322 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2022-11-23 14:44:21,322 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2022-11-23 14:44:21,323 INFO L899 garLoopResultBuilder]: For program point L899(lines 899 905) no Hoare annotation was computed. [2022-11-23 14:44:21,323 INFO L895 garLoopResultBuilder]: At program point L899-1(lines 899 905) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-23 14:44:21,323 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-23 14:44:21,323 INFO L902 garLoopResultBuilder]: At program point L755(lines 692 759) the Hoare annotation is: true [2022-11-23 14:44:21,323 INFO L899 garLoopResultBuilder]: For program point L722(lines 722 728) no Hoare annotation was computed. [2022-11-23 14:44:21,324 INFO L899 garLoopResultBuilder]: For program point L722-1(lines 722 728) no Hoare annotation was computed. [2022-11-23 14:44:21,324 INFO L895 garLoopResultBuilder]: At program point L714(line 714) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-23 14:44:21,324 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 14:44:21,324 INFO L895 garLoopResultBuilder]: At program point L752(lines 701 753) the Hoare annotation is: false [2022-11-23 14:44:21,325 INFO L895 garLoopResultBuilder]: At program point L901(line 901) the Hoare annotation is: false [2022-11-23 14:44:21,325 INFO L899 garLoopResultBuilder]: For program point L740(lines 740 746) no Hoare annotation was computed. [2022-11-23 14:44:21,325 INFO L895 garLoopResultBuilder]: At program point L740-2(lines 732 747) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-23 14:44:21,325 INFO L899 garLoopResultBuilder]: For program point L703(lines 702 751) no Hoare annotation was computed. [2022-11-23 14:44:21,326 INFO L895 garLoopResultBuilder]: At program point L732(lines 732 747) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-23 14:44:21,326 INFO L895 garLoopResultBuilder]: At program point L724(line 724) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-23 14:44:21,327 INFO L895 garLoopResultBuilder]: At program point L142(lines 142 149) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 15) 25) (= 9 (select |#length| 5)) (= (select |#length| 9) 21) (= 30 (select |#length| 7)) (= 1 (select |#valid| 5)) (= (select |#length| 3) 12) (= (select |#valid| 15) 1) (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| |ULTIMATE.start_main_~tmp~0#1|) (= ~methAndRunningLastTime~0 0) (= (select |#valid| 9) 1) (= (select |#length| 12) 25) (= |ULTIMATE.start_valid_product_~retValue_acc~7#1| |ULTIMATE.start_valid_product_#res#1|) (= (select |#valid| 11) 1) (= ~methaneLevelCritical~0 0) (= 30 (select |#length| 4)) (= 31 (select |#length| 2)) (= ~head~0.offset 0) (= 2 (select |#length| 1)) (= (select |#length| 8) 9) (= |ULTIMATE.start_valid_product_~retValue_acc~7#1| 1) (= (select |#valid| 3) 1) (= (select |#valid| 7) 1) (= 30 (select |#length| 13)) (= 1 ~systemActive~0) (= 30 (select |#length| 10)) (= (select |#valid| 12) 1) (= (select |#valid| 4) 1) (= (select |#valid| 1) 1) (= (select |#length| 6) 21) (= (select |#valid| 14) 1) (= 9 (select |#length| 14)) (= (select |#valid| 0) 0) (= ~head~0.base 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= 9 (select |#length| 11)) (= ~waterLevel~0 1) (= (select .cse0 0) 48) (= (select |#valid| 6) 1) (= (select .cse0 1) 0) (= (select |#valid| 10) 1) (= (select |#valid| 8) 1) (= (select |#valid| 13) 1) (< 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))) [2022-11-23 14:44:21,327 INFO L895 garLoopResultBuilder]: At program point L749(lines 702 751) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-23 14:44:21,327 INFO L902 garLoopResultBuilder]: At program point L142-2(lines 142 149) the Hoare annotation is: true [2022-11-23 14:44:21,327 INFO L899 garLoopResultBuilder]: For program point L712(lines 712 718) no Hoare annotation was computed. [2022-11-23 14:44:21,328 INFO L899 garLoopResultBuilder]: For program point L712-1(lines 712 718) no Hoare annotation was computed. [2022-11-23 14:44:21,328 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 540 551) no Hoare annotation was computed. [2022-11-23 14:44:21,329 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 540 551) the Hoare annotation is: (let ((.cse0 (not (= |#NULL.offset| 0))) (.cse1 (not (= ~pumpRunning~0 0))) (.cse2 (not (= ~head~0.offset 0))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= |#NULL.base| 0))) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse6 (not (= ~methAndRunningLastTime~0 0))) (.cse7 (not (= ~head~0.base 0))) (.cse8 (not (= ~cleanupTimeShifts~0 4)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (not (<= 0 |#StackHeapBarrier|)) .cse6 .cse7 (not (= 0 ~systemActive~0)) .cse8) (let ((.cse9 (select |#memory_int| 1))) (or (not (= (select |#length| 12) 25)) (not (= (select .cse9 0) 48)) .cse0 (not (= 9 (select |#length| 11))) (not (= 9 (select |#length| 5))) (not (= 30 (select |#length| 7))) .cse1 (not (= 31 (select |#length| 2))) (not (= (select |#valid| 12) 1)) (not (= 2 (select |#length| 1))) (not (= 9 (select |#length| 14))) (not (= |old(~waterLevel~0)| 1)) (not (= 1 ~systemActive~0)) (not (= (select |#length| 15) 25)) (not (= (select |#valid| 6) 1)) (not (< 0 |#StackHeapBarrier|)) (not (= (select |#valid| 3) 1)) .cse2 (not (= (select |#valid| 11) 1)) (not (= (select |#length| 9) 21)) (not (= 30 (select |#length| 10))) (not (= (select |#valid| 15) 1)) (not (= (select |#length| 6) 21)) (not (= 1 (select |#valid| 5))) (not (= (select |#length| 8) 9)) (not (= (select |#length| 3) 12)) (not (= (select |#valid| 0) 0)) .cse3 (not (= (select .cse9 1) 0)) (not (= (select |#valid| 1) 1)) (not (= (select |#valid| 8) 1)) (not (= 30 (select |#length| 13))) (not (= (select |#valid| 4) 1)) .cse4 (not (= (select |#valid| 7) 1)) (not (= (select |#valid| 10) 1)) .cse5 (not (= (select |#valid| 14) 1)) (not (= (select |#valid| 13) 1)) (not (= 30 (select |#length| 4))) (not (= (select |#valid| 2) 1)) .cse6 (not (= (select |#valid| 9) 1)) .cse7 .cse8)))) [2022-11-23 14:44:21,333 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:44:21,336 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:44:21,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:44:21 BoogieIcfgContainer [2022-11-23 14:44:21,368 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:44:21,369 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:44:21,369 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:44:21,369 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:44:21,370 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:43:29" (3/4) ... [2022-11-23 14:44:21,373 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 14:44:21,381 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-23 14:44:21,381 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-23 14:44:21,381 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-23 14:44:21,381 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-23 14:44:21,381 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-23 14:44:21,382 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-23 14:44:21,382 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-23 14:44:21,390 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2022-11-23 14:44:21,391 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-23 14:44:21,391 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-23 14:44:21,392 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 14:44:21,392 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 14:44:21,423 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((((((((((((((((((((((unknown-#length-unknown[15] == 25 && 9 == unknown-#length-unknown[5]) && unknown-#length-unknown[9] == 21) && 30 == unknown-#length-unknown[7]) && 1 == \valid[5]) && unknown-#length-unknown[3] == 12) && \valid[15] == 1) && pumpRunning == 0) && \result == tmp) && methAndRunningLastTime == 0) && \valid[9] == 1) && unknown-#length-unknown[12] == 25) && retValue_acc == \result) && \valid[11] == 1) && methaneLevelCritical == 0) && 30 == unknown-#length-unknown[4]) && 31 == unknown-#length-unknown[2]) && head == 0) && 2 == unknown-#length-unknown[1]) && unknown-#length-unknown[8] == 9) && retValue_acc == 1) && \valid[3] == 1) && \valid[7] == 1) && 30 == unknown-#length-unknown[13]) && 1 == systemActive) && 30 == unknown-#length-unknown[10]) && \valid[12] == 1) && \valid[4] == 1) && \valid[1] == 1) && unknown-#length-unknown[6] == 21) && \valid[14] == 1) && 9 == unknown-#length-unknown[14]) && \valid[0] == 0) && head == 0) && \valid[2] == 1) && #NULL == 0) && 9 == unknown-#length-unknown[11]) && waterLevel == 1) && unknown-#memory_int-unknown[1][0] == 48) && \valid[6] == 1) && unknown-#memory_int-unknown[1][1] == 0) && \valid[10] == 1) && \valid[8] == 1) && \valid[13] == 1) && 0 < unknown-#StackHeapBarrier-unknown) && cleanupTimeShifts == 4) && #NULL == 0 [2022-11-23 14:44:21,424 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || \old(waterLevel) == waterLevel) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(head == 0)) || !(cleanupTimeShifts == 4)) && ((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(\old(methAndRunningLastTime) == 0)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || \old(waterLevel) == waterLevel) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(head == 0)) || !(0 == systemActive)) || !(cleanupTimeShifts == 4))) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) [2022-11-23 14:44:21,425 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || \old(waterLevel) == waterLevel) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(head == 0)) || !(cleanupTimeShifts == 4)) && (((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(\old(methAndRunningLastTime) == 0)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(head == 0)) || !(0 == systemActive)) || !(cleanupTimeShifts == 4))) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) [2022-11-23 14:44:21,425 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || \old(waterLevel) == waterLevel) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(head == 0)) || !(cleanupTimeShifts == 4)) && ((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(\old(methAndRunningLastTime) == 0)) || ((tmp <= 0 && \old(waterLevel) == waterLevel) && 0 <= tmp)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(head == 0)) || !(0 == systemActive)) || !(cleanupTimeShifts == 4))) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) [2022-11-23 14:44:21,426 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0) [2022-11-23 14:44:21,426 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || \old(waterLevel) == waterLevel) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(head == 0)) || !(cleanupTimeShifts == 4)) && ((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(\old(methAndRunningLastTime) == 0)) || ((tmp <= 0 && \old(waterLevel) == waterLevel) && 0 <= tmp)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(head == 0)) || !(0 == systemActive)) || !(cleanupTimeShifts == 4))) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) [2022-11-23 14:44:21,427 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0) [2022-11-23 14:44:21,449 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df5568c-3d16-4c6d-bae7-b728a08dfe2c/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 14:44:21,450 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:44:21,450 INFO L158 Benchmark]: Toolchain (without parser) took 53205.84ms. Allocated memory was 140.5MB in the beginning and 314.6MB in the end (delta: 174.1MB). Free memory was 105.4MB in the beginning and 232.8MB in the end (delta: -127.3MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2022-11-23 14:44:21,451 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 140.5MB. Free memory is still 109.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:44:21,451 INFO L158 Benchmark]: CACSL2BoogieTranslator took 466.55ms. Allocated memory is still 140.5MB. Free memory was 105.4MB in the beginning and 87.0MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-23 14:44:21,452 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.86ms. Allocated memory is still 140.5MB. Free memory was 87.0MB in the beginning and 84.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:44:21,452 INFO L158 Benchmark]: Boogie Preprocessor took 37.31ms. Allocated memory is still 140.5MB. Free memory was 84.9MB in the beginning and 83.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:44:21,452 INFO L158 Benchmark]: RCFGBuilder took 674.23ms. Allocated memory is still 140.5MB. Free memory was 83.5MB in the beginning and 63.1MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-23 14:44:21,453 INFO L158 Benchmark]: TraceAbstraction took 51867.51ms. Allocated memory was 140.5MB in the beginning and 314.6MB in the end (delta: 174.1MB). Free memory was 62.2MB in the beginning and 237.0MB in the end (delta: -174.8MB). Peak memory consumption was 145.2MB. Max. memory is 16.1GB. [2022-11-23 14:44:21,453 INFO L158 Benchmark]: Witness Printer took 81.22ms. Allocated memory is still 314.6MB. Free memory was 237.0MB in the beginning and 232.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 14:44:21,455 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 140.5MB. Free memory is still 109.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 466.55ms. Allocated memory is still 140.5MB. Free memory was 105.4MB in the beginning and 87.0MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.86ms. Allocated memory is still 140.5MB. Free memory was 87.0MB in the beginning and 84.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.31ms. Allocated memory is still 140.5MB. Free memory was 84.9MB in the beginning and 83.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 674.23ms. Allocated memory is still 140.5MB. Free memory was 83.5MB in the beginning and 63.1MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 51867.51ms. Allocated memory was 140.5MB in the beginning and 314.6MB in the end (delta: 174.1MB). Free memory was 62.2MB in the beginning and 237.0MB in the end (delta: -174.8MB). Peak memory consumption was 145.2MB. Max. memory is 16.1GB. * Witness Printer took 81.22ms. Allocated memory is still 314.6MB. Free memory was 237.0MB in the beginning and 232.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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: 610]: 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, 59 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 51.8s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 12.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 331 SdHoareTripleChecker+Valid, 4.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 319 mSDsluCounter, 1163 SdHoareTripleChecker+Invalid, 3.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 810 mSDsCounter, 135 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1851 IncrementalHoareTripleChecker+Invalid, 1986 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 135 mSolverCounterUnsat, 353 mSDtfsCounter, 1851 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 325 GetRequests, 243 SyntacticMatches, 5 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 27.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=244occurred in iteration=6, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 88 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 33 LocationsWithAnnotation, 407 PreInvPairs, 455 NumberOfFragments, 1264 HoareAnnotationTreeSize, 407 FomulaSimplifications, 1319 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 33 FomulaSimplificationsInter, 44221 FormulaSimplificationTreeSizeReductionInter, 7.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 314 NumberOfCodeBlocks, 314 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 396 ConstructedInterpolants, 0 QuantifiedInterpolants, 1194 SizeOfPredicates, 8 NumberOfNonLiveVariables, 496 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 11 InterpolantComputations, 5 PerfectInterpolantSequences, 115/133 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: OVERALL_TIME: 7.3s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 7, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 68, DAG_INTERPRETER_EARLY_EXITS: 13, TOOLS_POST_APPLICATIONS: 118, TOOLS_POST_TIME: 2.6s, TOOLS_POST_CALL_APPLICATIONS: 35, TOOLS_POST_CALL_TIME: 2.9s, TOOLS_POST_RETURN_APPLICATIONS: 30, TOOLS_POST_RETURN_TIME: 0.8s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 152, TOOLS_QUANTIFIERELIM_TIME: 6.2s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.5s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 237, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 28, DOMAIN_JOIN_TIME: 0.7s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 8, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 68, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 8, LOOP_SUMMARIZER_CACHE_MISSES: 8, LOOP_SUMMARIZER_OVERALL_TIME: 2.3s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 2.3s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 8, CALL_SUMMARIZER_APPLICATIONS: 30, CALL_SUMMARIZER_CACHE_MISSES: 5, CALL_SUMMARIZER_OVERALL_TIME: 0.1s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.1s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 1445, DAG_COMPRESSION_RETAINED_NODES: 238, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 798]: Loop Invariant Derived loop invariant: (((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || \old(waterLevel) == waterLevel) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(head == 0)) || !(cleanupTimeShifts == 4)) && (((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(\old(methAndRunningLastTime) == 0)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(head == 0)) || !(0 == systemActive)) || !(cleanupTimeShifts == 4))) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 702]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methAndRunningLastTime == 0) && splverifierCounter == 0 - InvariantResult [Line: 701]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 766]: Loop Invariant Derived loop invariant: (((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || \old(waterLevel) == waterLevel) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(head == 0)) || !(cleanupTimeShifts == 4)) && ((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(\old(methAndRunningLastTime) == 0)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || \old(waterLevel) == waterLevel) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(head == 0)) || !(0 == systemActive)) || !(cleanupTimeShifts == 4))) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) - InvariantResult [Line: 692]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 668]: Loop Invariant Derived loop invariant: (((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || \old(waterLevel) == waterLevel) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(head == 0)) || !(cleanupTimeShifts == 4)) && ((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(\old(methAndRunningLastTime) == 0)) || ((tmp <= 0 && \old(waterLevel) == waterLevel) && 0 <= tmp)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(head == 0)) || !(0 == systemActive)) || !(cleanupTimeShifts == 4))) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) - InvariantResult [Line: 732]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methAndRunningLastTime == 0) && splverifierCounter == 0 - InvariantResult [Line: 844]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0) - InvariantResult [Line: 142]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 899]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methAndRunningLastTime == 0) && splverifierCounter == 0 - InvariantResult [Line: 142]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((unknown-#length-unknown[15] == 25 && 9 == unknown-#length-unknown[5]) && unknown-#length-unknown[9] == 21) && 30 == unknown-#length-unknown[7]) && 1 == \valid[5]) && unknown-#length-unknown[3] == 12) && \valid[15] == 1) && pumpRunning == 0) && \result == tmp) && methAndRunningLastTime == 0) && \valid[9] == 1) && unknown-#length-unknown[12] == 25) && retValue_acc == \result) && \valid[11] == 1) && methaneLevelCritical == 0) && 30 == unknown-#length-unknown[4]) && 31 == unknown-#length-unknown[2]) && head == 0) && 2 == unknown-#length-unknown[1]) && unknown-#length-unknown[8] == 9) && retValue_acc == 1) && \valid[3] == 1) && \valid[7] == 1) && 30 == unknown-#length-unknown[13]) && 1 == systemActive) && 30 == unknown-#length-unknown[10]) && \valid[12] == 1) && \valid[4] == 1) && \valid[1] == 1) && unknown-#length-unknown[6] == 21) && \valid[14] == 1) && 9 == unknown-#length-unknown[14]) && \valid[0] == 0) && head == 0) && \valid[2] == 1) && #NULL == 0) && 9 == unknown-#length-unknown[11]) && waterLevel == 1) && unknown-#memory_int-unknown[1][0] == 48) && \valid[6] == 1) && unknown-#memory_int-unknown[1][1] == 0) && \valid[10] == 1) && \valid[8] == 1) && \valid[13] == 1) && 0 < unknown-#StackHeapBarrier-unknown) && cleanupTimeShifts == 4) && #NULL == 0 - InvariantResult [Line: 660]: Loop Invariant Derived loop invariant: (((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || \old(waterLevel) == waterLevel) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(head == 0)) || !(cleanupTimeShifts == 4)) && ((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(\old(methAndRunningLastTime) == 0)) || ((tmp <= 0 && \old(waterLevel) == waterLevel) && 0 <= tmp)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(head == 0)) || !(0 == systemActive)) || !(cleanupTimeShifts == 4))) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) RESULT: Ultimate proved your program to be correct! [2022-11-23 14:44:21,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df5568c-3d16-4c6d-bae7-b728a08dfe2c/bin/utaipan-Q6hlc19bkW/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