./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product48.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a51e418-db12-4a81-be6c-7295b2177686/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a51e418-db12-4a81-be6c-7295b2177686/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_0a51e418-db12-4a81-be6c-7295b2177686/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a51e418-db12-4a81-be6c-7295b2177686/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product48.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a51e418-db12-4a81-be6c-7295b2177686/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_0a51e418-db12-4a81-be6c-7295b2177686/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 ae2f7a85a5093ad80fd05f69a7d0bbcf9a510999a9154b6f2d8037f035f00930 --- 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 14:52:32,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:52:32,220 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:52:32,262 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:52:32,263 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:52:32,267 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:52:32,271 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:52:32,275 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:52:32,277 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:52:32,284 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:52:32,285 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:52:32,286 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:52:32,287 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:52:32,291 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:52:32,293 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:52:32,298 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:52:32,300 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:52:32,301 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:52:32,302 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:52:32,304 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:52:32,306 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:52:32,311 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:52:32,313 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:52:32,314 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:52:32,328 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:52:32,329 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:52:32,329 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:52:32,330 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:52:32,331 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:52:32,332 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:52:32,332 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:52:32,333 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:52:32,334 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:52:32,335 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:52:32,337 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:52:32,337 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:52:32,338 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:52:32,342 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:52:32,343 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:52:32,347 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:52:32,348 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:52:32,349 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a51e418-db12-4a81-be6c-7295b2177686/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 14:52:32,396 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:52:32,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:52:32,397 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:52:32,398 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:52:32,399 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:52:32,399 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:52:32,400 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:52:32,400 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:52:32,400 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:52:32,400 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:52:32,402 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:52:32,402 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:52:32,402 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:52:32,403 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:52:32,403 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:52:32,403 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:52:32,404 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:52:32,404 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:52:32,405 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:52:32,405 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:52:32,406 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:52:32,406 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:52:32,406 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:52:32,407 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:52:32,407 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:52:32,407 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:52:32,408 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:52:32,408 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:52:32,409 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:52:32,409 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:52:32,409 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:52:32,410 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:52:32,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:52:32,411 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:52:32,411 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:52:32,411 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:52:32,412 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:52:32,412 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:52:32,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:52:32,413 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:52:32,413 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:52:32,415 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_0a51e418-db12-4a81-be6c-7295b2177686/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a51e418-db12-4a81-be6c-7295b2177686/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae2f7a85a5093ad80fd05f69a7d0bbcf9a510999a9154b6f2d8037f035f00930 [2022-11-23 14:52:32,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:52:32,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:52:32,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:52:32,772 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:52:32,772 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:52:32,773 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a51e418-db12-4a81-be6c-7295b2177686/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/product-lines/minepump_spec1_product48.cil.c [2022-11-23 14:52:35,884 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:52:36,185 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:52:36,186 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a51e418-db12-4a81-be6c-7295b2177686/sv-benchmarks/c/product-lines/minepump_spec1_product48.cil.c [2022-11-23 14:52:36,200 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a51e418-db12-4a81-be6c-7295b2177686/bin/utaipan-Q6hlc19bkW/data/40023caf4/2a40a405a448438099e6e53eee41923f/FLAG9623441b1 [2022-11-23 14:52:36,218 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a51e418-db12-4a81-be6c-7295b2177686/bin/utaipan-Q6hlc19bkW/data/40023caf4/2a40a405a448438099e6e53eee41923f [2022-11-23 14:52:36,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:52:36,223 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:52:36,225 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:52:36,225 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:52:36,234 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:52:36,235 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:52:36" (1/1) ... [2022-11-23 14:52:36,237 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b59ede6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:52:36, skipping insertion in model container [2022-11-23 14:52:36,237 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:52:36" (1/1) ... [2022-11-23 14:52:36,247 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:52:36,325 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:52:36,760 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_0a51e418-db12-4a81-be6c-7295b2177686/sv-benchmarks/c/product-lines/minepump_spec1_product48.cil.c[17123,17136] [2022-11-23 14:52:36,780 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:52:36,794 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:52:36,891 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_0a51e418-db12-4a81-be6c-7295b2177686/sv-benchmarks/c/product-lines/minepump_spec1_product48.cil.c[17123,17136] [2022-11-23 14:52:36,895 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:52:36,916 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:52:36,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:52:36 WrapperNode [2022-11-23 14:52:36,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:52:36,918 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:52:36,918 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:52:36,919 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:52:36,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:52:36" (1/1) ... [2022-11-23 14:52:36,952 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:52:36" (1/1) ... [2022-11-23 14:52:36,984 INFO L138 Inliner]: procedures = 56, calls = 102, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 188 [2022-11-23 14:52:36,990 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:52:36,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:52:36,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:52:36,992 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:52:37,002 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:52:36" (1/1) ... [2022-11-23 14:52:37,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:52:36" (1/1) ... [2022-11-23 14:52:37,022 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:52:36" (1/1) ... [2022-11-23 14:52:37,022 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:52:36" (1/1) ... [2022-11-23 14:52:37,028 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:52:36" (1/1) ... [2022-11-23 14:52:37,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:52:36" (1/1) ... [2022-11-23 14:52:37,048 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:52:36" (1/1) ... [2022-11-23 14:52:37,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:52:36" (1/1) ... [2022-11-23 14:52:37,051 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:52:37,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:52:37,053 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:52:37,053 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:52:37,054 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:52:36" (1/1) ... [2022-11-23 14:52:37,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:52:37,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a51e418-db12-4a81-be6c-7295b2177686/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:52:37,100 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a51e418-db12-4a81-be6c-7295b2177686/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:52:37,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a51e418-db12-4a81-be6c-7295b2177686/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:52:37,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:52:37,150 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-23 14:52:37,150 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-23 14:52:37,150 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-23 14:52:37,150 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-23 14:52:37,150 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-23 14:52:37,151 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-23 14:52:37,151 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-23 14:52:37,151 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-23 14:52:37,151 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-23 14:52:37,151 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-23 14:52:37,151 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-11-23 14:52:37,152 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-11-23 14:52:37,152 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-11-23 14:52:37,152 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-11-23 14:52:37,153 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-23 14:52:37,154 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-23 14:52:37,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:52:37,154 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-23 14:52:37,154 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-23 14:52:37,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:52:37,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:52:37,285 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:52:37,287 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:52:37,728 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:52:37,889 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:52:37,897 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 14:52:37,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:52:37 BoogieIcfgContainer [2022-11-23 14:52:37,902 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:52:37,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:52:37,904 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:52:37,908 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:52:37,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:52:36" (1/3) ... [2022-11-23 14:52:37,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20d1817e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:52:37, skipping insertion in model container [2022-11-23 14:52:37,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:52:36" (2/3) ... [2022-11-23 14:52:37,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20d1817e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:52:37, skipping insertion in model container [2022-11-23 14:52:37,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:52:37" (3/3) ... [2022-11-23 14:52:37,920 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product48.cil.c [2022-11-23 14:52:37,939 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:52:37,939 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:52:37,988 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:52:37,995 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;@88400d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:52:37,996 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:52:38,000 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 53 states have internal predecessors, (62), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-23 14:52:38,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-23 14:52:38,010 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:52:38,011 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:52:38,011 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:52:38,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:52:38,017 INFO L85 PathProgramCache]: Analyzing trace with hash -2093405163, now seen corresponding path program 1 times [2022-11-23 14:52:38,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:52:38,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376496785] [2022-11-23 14:52:38,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:52:38,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:52:38,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:52:38,200 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 14:52:38,201 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:52:38,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376496785] [2022-11-23 14:52:38,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376496785] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:52:38,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:52:38,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:52:38,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817778174] [2022-11-23 14:52:38,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:52:38,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:52:38,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:52:38,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:52:38,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:52:38,266 INFO L87 Difference]: Start difference. First operand has 71 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 53 states have internal predecessors, (62), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 14:52:38,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:52:38,349 INFO L93 Difference]: Finished difference Result 140 states and 189 transitions. [2022-11-23 14:52:38,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:52:38,352 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 16 [2022-11-23 14:52:38,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:52:38,362 INFO L225 Difference]: With dead ends: 140 [2022-11-23 14:52:38,363 INFO L226 Difference]: Without dead ends: 66 [2022-11-23 14:52:38,367 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 14:52:38,371 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:52:38,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:52:38,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-11-23 14:52:38,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2022-11-23 14:52:38,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 49 states have internal predecessors, (54), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 12 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-23 14:52:38,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 85 transitions. [2022-11-23 14:52:38,421 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 85 transitions. Word has length 16 [2022-11-23 14:52:38,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:52:38,422 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 85 transitions. [2022-11-23 14:52:38,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 14:52:38,422 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 85 transitions. [2022-11-23 14:52:38,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-23 14:52:38,425 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:52:38,425 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 14:52:38,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:52:38,426 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:52:38,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:52:38,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1950075985, now seen corresponding path program 1 times [2022-11-23 14:52:38,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:52:38,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494700899] [2022-11-23 14:52:38,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:52:38,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:52:38,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:52:38,574 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 14:52:38,575 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:52:38,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494700899] [2022-11-23 14:52:38,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494700899] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:52:38,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:52:38,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:52:38,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714492023] [2022-11-23 14:52:38,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:52:38,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:52:38,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:52:38,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:52:38,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:52:38,579 INFO L87 Difference]: Start difference. First operand 66 states and 85 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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 14:52:38,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:52:38,664 INFO L93 Difference]: Finished difference Result 104 states and 132 transitions. [2022-11-23 14:52:38,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:52:38,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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 14:52:38,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:52:38,666 INFO L225 Difference]: With dead ends: 104 [2022-11-23 14:52:38,666 INFO L226 Difference]: Without dead ends: 58 [2022-11-23 14:52:38,667 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 14:52:38,669 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 14 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:52:38,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 102 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:52:38,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-23 14:52:38,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-11-23 14:52:38,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 44 states have internal predecessors, (48), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-23 14:52:38,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 74 transitions. [2022-11-23 14:52:38,680 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 74 transitions. Word has length 17 [2022-11-23 14:52:38,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:52:38,681 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 74 transitions. [2022-11-23 14:52:38,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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 14:52:38,681 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 74 transitions. [2022-11-23 14:52:38,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-23 14:52:38,682 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:52:38,683 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] [2022-11-23 14:52:38,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:52:38,683 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:52:38,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:52:38,684 INFO L85 PathProgramCache]: Analyzing trace with hash -293862345, now seen corresponding path program 1 times [2022-11-23 14:52:38,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:52:38,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545596745] [2022-11-23 14:52:38,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:52:38,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:52:38,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:52:38,799 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 14:52:38,799 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:52:38,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545596745] [2022-11-23 14:52:38,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545596745] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:52:38,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:52:38,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:52:38,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720266609] [2022-11-23 14:52:38,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:52:38,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:52:38,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:52:38,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:52:38,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:52:38,803 INFO L87 Difference]: Start difference. First operand 58 states and 74 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 14:52:38,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:52:38,885 INFO L93 Difference]: Finished difference Result 170 states and 219 transitions. [2022-11-23 14:52:38,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:52:38,886 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 20 [2022-11-23 14:52:38,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:52:38,888 INFO L225 Difference]: With dead ends: 170 [2022-11-23 14:52:38,889 INFO L226 Difference]: Without dead ends: 114 [2022-11-23 14:52:38,890 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 14:52:38,891 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 68 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:52:38,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 135 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:52:38,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-11-23 14:52:38,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 111. [2022-11-23 14:52:38,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 68 states have (on average 1.338235294117647) internal successors, (91), 83 states have internal predecessors, (91), 26 states have call successors, (26), 16 states have call predecessors, (26), 16 states have return successors, (26), 19 states have call predecessors, (26), 26 states have call successors, (26) [2022-11-23 14:52:38,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 143 transitions. [2022-11-23 14:52:38,916 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 143 transitions. Word has length 20 [2022-11-23 14:52:38,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:52:38,917 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 143 transitions. [2022-11-23 14:52:38,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 14:52:38,918 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 143 transitions. [2022-11-23 14:52:38,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-23 14:52:38,919 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:52:38,919 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] [2022-11-23 14:52:38,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:52:38,920 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:52:38,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:52:38,921 INFO L85 PathProgramCache]: Analyzing trace with hash 571140165, now seen corresponding path program 1 times [2022-11-23 14:52:38,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:52:38,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89987221] [2022-11-23 14:52:38,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:52:38,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:52:38,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:52:39,047 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 14:52:39,047 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:52:39,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89987221] [2022-11-23 14:52:39,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89987221] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:52:39,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:52:39,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 14:52:39,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749211581] [2022-11-23 14:52:39,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:52:39,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:52:39,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:52:39,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:52:39,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:52:39,051 INFO L87 Difference]: Start difference. First operand 111 states and 143 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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 14:52:39,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:52:39,328 INFO L93 Difference]: Finished difference Result 327 states and 426 transitions. [2022-11-23 14:52:39,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:52:39,329 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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 23 [2022-11-23 14:52:39,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:52:39,344 INFO L225 Difference]: With dead ends: 327 [2022-11-23 14:52:39,344 INFO L226 Difference]: Without dead ends: 218 [2022-11-23 14:52:39,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:52:39,347 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 52 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:52:39,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 307 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:52:39,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-11-23 14:52:39,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 210. [2022-11-23 14:52:39,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 129 states have (on average 1.3255813953488371) internal successors, (171), 156 states have internal predecessors, (171), 50 states have call successors, (50), 30 states have call predecessors, (50), 30 states have return successors, (50), 36 states have call predecessors, (50), 50 states have call successors, (50) [2022-11-23 14:52:39,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 271 transitions. [2022-11-23 14:52:39,399 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 271 transitions. Word has length 23 [2022-11-23 14:52:39,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:52:39,400 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 271 transitions. [2022-11-23 14:52:39,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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 14:52:39,401 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 271 transitions. [2022-11-23 14:52:39,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-23 14:52:39,404 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:52:39,404 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:52:39,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 14:52:39,405 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:52:39,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:52:39,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1843286830, now seen corresponding path program 1 times [2022-11-23 14:52:39,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:52:39,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004023554] [2022-11-23 14:52:39,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:52:39,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:52:39,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:52:39,572 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 14:52:39,572 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:52:39,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004023554] [2022-11-23 14:52:39,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004023554] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:52:39,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:52:39,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:52:39,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978978302] [2022-11-23 14:52:39,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:52:39,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:52:39,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:52:39,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:52:39,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:52:39,579 INFO L87 Difference]: Start difference. First operand 210 states and 271 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 14:52:39,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:52:39,748 INFO L93 Difference]: Finished difference Result 574 states and 754 transitions. [2022-11-23 14:52:39,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:52:39,749 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2022-11-23 14:52:39,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:52:39,754 INFO L225 Difference]: With dead ends: 574 [2022-11-23 14:52:39,755 INFO L226 Difference]: Without dead ends: 366 [2022-11-23 14:52:39,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:52:39,766 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 42 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:52:39,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 178 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:52:39,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2022-11-23 14:52:39,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 356. [2022-11-23 14:52:39,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 231 states have (on average 1.2683982683982684) internal successors, (293), 256 states have internal predecessors, (293), 68 states have call successors, (68), 56 states have call predecessors, (68), 56 states have return successors, (84), 62 states have call predecessors, (84), 68 states have call successors, (84) [2022-11-23 14:52:39,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 445 transitions. [2022-11-23 14:52:39,862 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 445 transitions. Word has length 26 [2022-11-23 14:52:39,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:52:39,863 INFO L495 AbstractCegarLoop]: Abstraction has 356 states and 445 transitions. [2022-11-23 14:52:39,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 14:52:39,863 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 445 transitions. [2022-11-23 14:52:39,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-23 14:52:39,872 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:52:39,873 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:52:39,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 14:52:39,874 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:52:39,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:52:39,876 INFO L85 PathProgramCache]: Analyzing trace with hash 572047788, now seen corresponding path program 1 times [2022-11-23 14:52:39,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:52:39,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868249764] [2022-11-23 14:52:39,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:52:39,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:52:39,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:52:40,235 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 14:52:40,236 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:52:40,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868249764] [2022-11-23 14:52:40,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868249764] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:52:40,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:52:40,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 14:52:40,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674550090] [2022-11-23 14:52:40,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:52:40,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:52:40,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:52:40,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:52:40,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:52:40,241 INFO L87 Difference]: Start difference. First operand 356 states and 445 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 5 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-23 14:52:40,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:52:40,539 INFO L93 Difference]: Finished difference Result 1018 states and 1283 transitions. [2022-11-23 14:52:40,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:52:40,540 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 5 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Word has length 39 [2022-11-23 14:52:40,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:52:40,544 INFO L225 Difference]: With dead ends: 1018 [2022-11-23 14:52:40,545 INFO L226 Difference]: Without dead ends: 664 [2022-11-23 14:52:40,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:52:40,547 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 112 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:52:40,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 244 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:52:40,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2022-11-23 14:52:40,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 588. [2022-11-23 14:52:40,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 399 states have (on average 1.2606516290726817) internal successors, (503), 426 states have internal predecessors, (503), 94 states have call successors, (94), 86 states have call predecessors, (94), 94 states have return successors, (118), 94 states have call predecessors, (118), 94 states have call successors, (118) [2022-11-23 14:52:40,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 715 transitions. [2022-11-23 14:52:40,629 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 715 transitions. Word has length 39 [2022-11-23 14:52:40,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:52:40,629 INFO L495 AbstractCegarLoop]: Abstraction has 588 states and 715 transitions. [2022-11-23 14:52:40,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 5 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-23 14:52:40,630 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 715 transitions. [2022-11-23 14:52:40,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-23 14:52:40,632 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:52:40,632 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:52:40,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 14:52:40,633 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:52:40,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:52:40,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1439896298, now seen corresponding path program 1 times [2022-11-23 14:52:40,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:52:40,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346633345] [2022-11-23 14:52:40,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:52:40,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:52:40,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:52:41,147 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:52:41,147 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:52:41,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346633345] [2022-11-23 14:52:41,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346633345] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:52:41,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496495482] [2022-11-23 14:52:41,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:52:41,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:52:41,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a51e418-db12-4a81-be6c-7295b2177686/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:52:41,152 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a51e418-db12-4a81-be6c-7295b2177686/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:52:41,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a51e418-db12-4a81-be6c-7295b2177686/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:52:41,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:52:41,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-23 14:52:41,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:52:41,867 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:52:41,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:52:42,601 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:52:42,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496495482] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:52:42,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1944942376] [2022-11-23 14:52:42,621 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2022-11-23 14:52:42,622 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:52:42,626 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:52:42,631 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:52:42,632 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:52:44,247 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 114 for LOIs [2022-11-23 14:52:44,264 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 134 for LOIs [2022-11-23 14:52:44,999 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 129 for LOIs [2022-11-23 14:52:45,645 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 130 for LOIs [2022-11-23 14:52:46,067 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 43 for LOIs [2022-11-23 14:52:46,075 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 112 for LOIs [2022-11-23 14:52:46,088 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:53:01,591 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6024#(and (<= |timeShift___utac_acc__Specification1_spec__1_~tmp~4#1| 1) (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~8#1|) (<= ~pumpRunning~0 1) (= ~head~0.offset 0) (<= 2 ~waterLevel~0) (= 1 ~systemActive~0) (= |old(~pumpRunning~0)| 0) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~8#1|) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification1_spec__1_~tmp___0~0#1|) (<= 2 |old(~waterLevel~0)|) (= |timeShift___utac_acc__Specification1_spec__1_~tmp~4#1| ~methaneLevelCritical~0) (<= 0 ~pumpRunning~0) (= ~head~0.base 0) (= |#NULL.offset| 0) (not (= |timeShift___utac_acc__Specification1_spec__1_~tmp~4#1| 0)) (not (= |timeShift___utac_acc__Specification1_spec__1_~tmp___0~0#1| 0)) (<= 0 |timeShift___utac_acc__Specification1_spec__1_~tmp~4#1|) (<= 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-23 14:53:01,592 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 14:53:01,592 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:53:01,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12, 12] total 32 [2022-11-23 14:53:01,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881641969] [2022-11-23 14:53:01,593 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 14:53:01,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-23 14:53:01,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:53:01,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-23 14:53:01,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=441, Invalid=3341, Unknown=0, NotChecked=0, Total=3782 [2022-11-23 14:53:01,597 INFO L87 Difference]: Start difference. First operand 588 states and 715 transitions. Second operand has 32 states, 23 states have (on average 2.782608695652174) internal successors, (64), 23 states have internal predecessors, (64), 8 states have call successors, (16), 6 states have call predecessors, (16), 13 states have return successors, (16), 14 states have call predecessors, (16), 7 states have call successors, (16) [2022-11-23 14:53:10,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:53:10,437 INFO L93 Difference]: Finished difference Result 2853 states and 3939 transitions. [2022-11-23 14:53:10,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-11-23 14:53:10,438 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 23 states have (on average 2.782608695652174) internal successors, (64), 23 states have internal predecessors, (64), 8 states have call successors, (16), 6 states have call predecessors, (16), 13 states have return successors, (16), 14 states have call predecessors, (16), 7 states have call successors, (16) Word has length 42 [2022-11-23 14:53:10,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:53:10,450 INFO L225 Difference]: With dead ends: 2853 [2022-11-23 14:53:10,450 INFO L226 Difference]: Without dead ends: 2170 [2022-11-23 14:53:10,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 96 SyntacticMatches, 6 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10326 ImplicationChecksByTransitivity, 20.9s TimeCoverageRelationStatistics Valid=2754, Invalid=24636, Unknown=0, NotChecked=0, Total=27390 [2022-11-23 14:53:10,464 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 1472 mSDsluCounter, 1398 mSDsCounter, 0 mSdLazyCounter, 4991 mSolverCounterSat, 1007 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1478 SdHoareTripleChecker+Valid, 1525 SdHoareTripleChecker+Invalid, 5998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1007 IncrementalHoareTripleChecker+Valid, 4991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:53:10,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1478 Valid, 1525 Invalid, 5998 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1007 Valid, 4991 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-23 14:53:10,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2170 states. [2022-11-23 14:53:10,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2170 to 1274. [2022-11-23 14:53:10,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 872 states have (on average 1.2213302752293578) internal successors, (1065), 924 states have internal predecessors, (1065), 201 states have call successors, (201), 174 states have call predecessors, (201), 200 states have return successors, (255), 212 states have call predecessors, (255), 201 states have call successors, (255) [2022-11-23 14:53:10,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 1521 transitions. [2022-11-23 14:53:10,648 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 1521 transitions. Word has length 42 [2022-11-23 14:53:10,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:53:10,649 INFO L495 AbstractCegarLoop]: Abstraction has 1274 states and 1521 transitions. [2022-11-23 14:53:10,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 23 states have (on average 2.782608695652174) internal successors, (64), 23 states have internal predecessors, (64), 8 states have call successors, (16), 6 states have call predecessors, (16), 13 states have return successors, (16), 14 states have call predecessors, (16), 7 states have call successors, (16) [2022-11-23 14:53:10,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 1521 transitions. [2022-11-23 14:53:10,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-23 14:53:10,656 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:53:10,656 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:53:10,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a51e418-db12-4a81-be6c-7295b2177686/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-23 14:53:10,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a51e418-db12-4a81-be6c-7295b2177686/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:53:10,861 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:53:10,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:53:10,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1961538810, now seen corresponding path program 1 times [2022-11-23 14:53:10,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:53:10,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335775798] [2022-11-23 14:53:10,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:53:10,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:53:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:53:11,163 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 14:53:11,163 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:53:11,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335775798] [2022-11-23 14:53:11,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335775798] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:53:11,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558692170] [2022-11-23 14:53:11,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:53:11,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:53:11,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a51e418-db12-4a81-be6c-7295b2177686/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:53:11,165 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a51e418-db12-4a81-be6c-7295b2177686/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:53:11,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a51e418-db12-4a81-be6c-7295b2177686/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 14:53:11,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:53:11,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-23 14:53:11,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:53:11,423 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-23 14:53:11,423 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:53:11,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558692170] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:53:11,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 14:53:11,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [13] total 18 [2022-11-23 14:53:11,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113141238] [2022-11-23 14:53:11,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:53:11,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 14:53:11,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:53:11,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 14:53:11,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-11-23 14:53:11,427 INFO L87 Difference]: Start difference. First operand 1274 states and 1521 transitions. Second operand has 11 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (11), 2 states have call predecessors, (11), 5 states have return successors, (12), 5 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 14:53:11,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:53:11,978 INFO L93 Difference]: Finished difference Result 2624 states and 3197 transitions. [2022-11-23 14:53:11,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-23 14:53:11,978 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (11), 2 states have call predecessors, (11), 5 states have return successors, (12), 5 states have call predecessors, (12), 2 states have call successors, (12) Word has length 79 [2022-11-23 14:53:11,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:53:11,991 INFO L225 Difference]: With dead ends: 2624 [2022-11-23 14:53:11,991 INFO L226 Difference]: Without dead ends: 1541 [2022-11-23 14:53:11,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=622, Unknown=0, NotChecked=0, Total=702 [2022-11-23 14:53:11,999 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 66 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:53:12,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 446 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:53:12,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1541 states. [2022-11-23 14:53:12,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1541 to 1431. [2022-11-23 14:53:12,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1431 states, 977 states have (on average 1.2118730808597749) internal successors, (1184), 1030 states have internal predecessors, (1184), 225 states have call successors, (225), 201 states have call predecessors, (225), 228 states have return successors, (285), 239 states have call predecessors, (285), 225 states have call successors, (285) [2022-11-23 14:53:12,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 1694 transitions. [2022-11-23 14:53:12,227 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 1694 transitions. Word has length 79 [2022-11-23 14:53:12,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:53:12,228 INFO L495 AbstractCegarLoop]: Abstraction has 1431 states and 1694 transitions. [2022-11-23 14:53:12,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (11), 2 states have call predecessors, (11), 5 states have return successors, (12), 5 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 14:53:12,229 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 1694 transitions. [2022-11-23 14:53:12,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-23 14:53:12,233 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:53:12,233 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:53:12,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a51e418-db12-4a81-be6c-7295b2177686/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 14:53:12,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a51e418-db12-4a81-be6c-7295b2177686/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:53:12,440 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:53:12,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:53:12,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1696902034, now seen corresponding path program 1 times [2022-11-23 14:53:12,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:53:12,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431086066] [2022-11-23 14:53:12,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:53:12,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:53:12,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:53:12,531 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-23 14:53:12,531 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:53:12,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431086066] [2022-11-23 14:53:12,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431086066] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:53:12,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:53:12,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:53:12,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507831124] [2022-11-23 14:53:12,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:53:12,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:53:12,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:53:12,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:53:12,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:53:12,534 INFO L87 Difference]: Start difference. First operand 1431 states and 1694 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-23 14:53:12,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:53:12,751 INFO L93 Difference]: Finished difference Result 2284 states and 2717 transitions. [2022-11-23 14:53:12,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:53:12,752 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 90 [2022-11-23 14:53:12,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:53:12,753 INFO L225 Difference]: With dead ends: 2284 [2022-11-23 14:53:12,753 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 14:53:12,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:53:12,759 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 80 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:53:12,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 122 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:53:12,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 14:53:12,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 14:53:12,761 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 14:53:12,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 14:53:12,762 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 90 [2022-11-23 14:53:12,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:53:12,763 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 14:53:12,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-23 14:53:12,763 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 14:53:12,764 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 14:53:12,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 14:53:12,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 14:53:12,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 14:53:22,013 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 762 769) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (= ~waterLevel~0 1)) (or .cse0 (not (= 1 ~systemActive~0))) (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1))) [2022-11-23 14:53:22,014 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 762 769) no Hoare annotation was computed. [2022-11-23 14:53:22,014 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 678 684) no Hoare annotation was computed. [2022-11-23 14:53:22,014 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 678 684) the Hoare annotation is: true [2022-11-23 14:53:22,015 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 83 94) the Hoare annotation is: (let ((.cse0 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0))) (and (or (not (= ~pumpRunning~0 0)) .cse0 (not (= 0 ~systemActive~0))) (or (not (= 1 ~systemActive~0)) .cse0))) [2022-11-23 14:53:22,015 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 83 94) no Hoare annotation was computed. [2022-11-23 14:53:22,015 INFO L895 garLoopResultBuilder]: At program point L726(line 726) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~methaneLevelCritical~0 0) (= |timeShift_processEnvironment_~tmp~6#1| ~methaneLevelCritical~0))) (or .cse1 .cse0) (or .cse1 (not (= 0 ~systemActive~0))))) [2022-11-23 14:53:22,016 INFO L895 garLoopResultBuilder]: At program point L627(line 627) the Hoare annotation is: (let ((.cse9 (= ~methaneLevelCritical~0 0))) (let ((.cse7 (= ~pumpRunning~0 0)) (.cse3 (not .cse9))) (let ((.cse5 (not (= ~methaneLevelCritical~0 ~systemActive~0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse12 (= |timeShift_processEnvironment_~tmp~6#1| ~methaneLevelCritical~0)) (.cse10 (or (and .cse7 .cse3) (and .cse9 (= ~pumpRunning~0 1)))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse8 (not (= ~methaneLevelCritical~0 1))) (.cse4 (= ~waterLevel~0 1)) (.cse6 (not (= 0 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse5 .cse4 .cse6) (or .cse0 .cse7 .cse6) (or .cse0 .cse1 .cse5 .cse8 .cse4) (let ((.cse11 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (or (and (not .cse4) .cse9 .cse10) .cse2 (and .cse11 .cse9 .cse12) (and .cse11 .cse7) (and .cse7 .cse12))) (or .cse2 (and .cse12 .cse10) (not (= |old(~pumpRunning~0)| 1))) (or .cse0 .cse1 .cse8 .cse4 .cse6))))) [2022-11-23 14:53:22,021 INFO L895 garLoopResultBuilder]: At program point L722(line 722) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_processEnvironment_~tmp~6#1| ~methaneLevelCritical~0))) (or .cse1 .cse0) (or .cse0 (not (= ~methaneLevelCritical~0 0))) (or .cse1 (not (= 0 ~systemActive~0))))) [2022-11-23 14:53:22,021 INFO L899 garLoopResultBuilder]: For program point L627-1(line 627) no Hoare annotation was computed. [2022-11-23 14:53:22,021 INFO L895 garLoopResultBuilder]: At program point L718(line 718) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) (or .cse1 .cse0) (or .cse1 (not (= 0 ~systemActive~0))))) [2022-11-23 14:53:22,022 INFO L899 garLoopResultBuilder]: For program point L718-1(line 718) no Hoare annotation was computed. [2022-11-23 14:53:22,022 INFO L895 garLoopResultBuilder]: At program point L731(line 731) the Hoare annotation is: (let ((.cse0 (not (= |old(~waterLevel~0)| 1))) (.cse2 (not (= 1 ~systemActive~0))) (.cse1 (= ~waterLevel~0 1))) (and (or .cse0 (not (= ~methaneLevelCritical~0 ~systemActive~0)) (not (= ~methaneLevelCritical~0 1)) .cse1) (or .cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0))) (or .cse0 .cse2 (not (= ~methaneLevelCritical~0 0)) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) (not (= 0 ~systemActive~0))))) [2022-11-23 14:53:22,027 INFO L895 garLoopResultBuilder]: At program point L731-1(lines 712 736) the Hoare annotation is: (let ((.cse5 (= ~methaneLevelCritical~0 0))) (let ((.cse9 (= ~pumpRunning~0 0)) (.cse3 (not .cse5))) (let ((.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse4 (= ~waterLevel~0 1)) (.cse2 (not (= 1 ~systemActive~0))) (.cse8 (= |timeShift_processEnvironment_~tmp~6#1| ~methaneLevelCritical~0)) (.cse6 (or (and .cse9 .cse3) (and .cse5 (= ~pumpRunning~0 1)))) (.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 ~systemActive~0)) (not (= ~methaneLevelCritical~0 1)) .cse4) (let ((.cse7 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (or (and (not .cse4) .cse5 .cse6) .cse2 (and .cse7 .cse5 .cse8) (and .cse7 .cse9) (and .cse9 .cse8))) (or .cse2 (and .cse8 .cse6) (not (= |old(~pumpRunning~0)| 1))) (or .cse0 (not (= 0 ~systemActive~0))))))) [2022-11-23 14:53:22,027 INFO L899 garLoopResultBuilder]: For program point L665-1(lines 665 671) no Hoare annotation was computed. [2022-11-23 14:53:22,027 INFO L899 garLoopResultBuilder]: For program point L633(lines 633 639) no Hoare annotation was computed. [2022-11-23 14:53:22,028 INFO L895 garLoopResultBuilder]: At program point L629(lines 629 642) the Hoare annotation is: (let ((.cse14 (= |timeShift___utac_acc__Specification1_spec__1_~tmp~4#1| 0))) (let ((.cse9 (= ~methaneLevelCritical~0 0)) (.cse7 (= ~pumpRunning~0 0)) (.cse10 (not .cse14))) (let ((.cse5 (not (= ~methaneLevelCritical~0 ~systemActive~0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse8 (not (= ~methaneLevelCritical~0 1))) (.cse4 (= ~waterLevel~0 1)) (.cse6 (not (= 0 ~systemActive~0))) (.cse12 (= |timeShift_processEnvironment_~tmp~6#1| ~methaneLevelCritical~0)) (.cse13 (or (and .cse7 .cse10) (and .cse14 (= ~pumpRunning~0 1)))) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (not .cse9))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse5 .cse4 .cse6) (or .cse0 .cse7 .cse6) (or .cse0 .cse1 .cse5 .cse8 .cse4) (or .cse0 .cse9 .cse10 .cse6) (let ((.cse11 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (or .cse2 (and .cse11 .cse9 .cse12) (and .cse11 .cse7) (and (not .cse4) .cse9 .cse13) (and .cse7 .cse12))) (or .cse0 .cse9 .cse2 .cse10) (or .cse0 .cse14 .cse3 .cse6) (or .cse0 .cse1 .cse8 .cse4 .cse6) (or .cse2 (and .cse12 .cse13) .cse3 (not (= |old(~pumpRunning~0)| 1))) (or .cse2 .cse14 .cse3))))) [2022-11-23 14:53:22,028 INFO L895 garLoopResultBuilder]: At program point L629-1(lines 621 645) the Hoare annotation is: (let ((.cse8 (= |timeShift___utac_acc__Specification1_spec__1_~tmp~4#1| 0))) (let ((.cse11 (= ~methaneLevelCritical~0 0)) (.cse5 (= ~pumpRunning~0 0)) (.cse12 (not .cse8))) (let ((.cse7 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse4 (= ~waterLevel~0 1)) (.cse6 (not (= 0 ~systemActive~0))) (.cse14 (= |timeShift_processEnvironment_~tmp~6#1| ~methaneLevelCritical~0)) (.cse15 (or (and .cse5 .cse12) (and .cse8 (= ~pumpRunning~0 1)))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse9 (<= |timeShift___utac_acc__Specification1_spec__1_~tmp___0~0#1| 0)) (.cse10 (< 0 (+ |timeShift___utac_acc__Specification1_spec__1_~tmp___0~0#1| 1))) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (not .cse11))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse3 .cse6) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 ~systemActive~0)) .cse7 .cse4) (or .cse0 .cse8 (and .cse5 .cse9 .cse10) .cse6) (or .cse0 .cse11 .cse12 .cse6) (let ((.cse13 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (or .cse2 (and .cse13 .cse11 .cse14) (and .cse13 .cse5) (and (not .cse4) .cse11 .cse15) (and .cse5 .cse14))) (or .cse0 .cse8 .cse3 .cse6) (or .cse0 .cse1 .cse7 .cse4 .cse6) (or .cse0 .cse1 .cse3 .cse4 .cse6) (or .cse2 (and .cse14 .cse15) .cse3 (not (= |old(~pumpRunning~0)| 1))) (or .cse0 .cse11 .cse2 (and .cse9 .cse10 .cse12)) (or .cse2 .cse8 .cse3))))) [2022-11-23 14:53:22,029 INFO L899 garLoopResultBuilder]: For program point L658-1(lines 657 676) no Hoare annotation was computed. [2022-11-23 14:53:22,029 INFO L899 garLoopResultBuilder]: For program point L720(lines 720 728) no Hoare annotation was computed. [2022-11-23 14:53:22,029 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 654 677) the Hoare annotation is: (let ((.cse2 (not (= 1 ~systemActive~0))) (.cse6 (not (= ~methaneLevelCritical~0 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse4 (= ~waterLevel~0 1)) (.cse5 (not (= 0 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 (= ~pumpRunning~0 0) .cse5) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 ~systemActive~0)) .cse6 .cse4) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2) (or .cse0 .cse1 .cse6 .cse4 .cse5) (or .cse0 .cse1 .cse3 .cse4 .cse5))) [2022-11-23 14:53:22,029 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 733) no Hoare annotation was computed. [2022-11-23 14:53:22,029 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 654 677) no Hoare annotation was computed. [2022-11-23 14:53:22,030 INFO L895 garLoopResultBuilder]: At program point L873(line 873) the Hoare annotation is: (and (not (= 1 ~systemActive~0)) (or (not (= |old(~pumpRunning~0)| 0)) (not (= 0 ~systemActive~0)))) [2022-11-23 14:53:22,030 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 873) no Hoare annotation was computed. [2022-11-23 14:53:22,031 INFO L902 garLoopResultBuilder]: At program point L163-2(lines 163 177) the Hoare annotation is: true [2022-11-23 14:53:22,031 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 153 182) no Hoare annotation was computed. [2022-11-23 14:53:22,031 INFO L902 garLoopResultBuilder]: At program point L159(line 159) the Hoare annotation is: true [2022-11-23 14:53:22,031 INFO L899 garLoopResultBuilder]: For program point L159-1(line 159) no Hoare annotation was computed. [2022-11-23 14:53:22,031 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 153 182) the Hoare annotation is: true [2022-11-23 14:53:22,031 INFO L902 garLoopResultBuilder]: At program point L178(lines 153 182) the Hoare annotation is: true [2022-11-23 14:53:22,031 INFO L899 garLoopResultBuilder]: For program point L174(line 174) no Hoare annotation was computed. [2022-11-23 14:53:22,031 INFO L899 garLoopResultBuilder]: For program point L167(lines 167 171) no Hoare annotation was computed. [2022-11-23 14:53:22,032 INFO L902 garLoopResultBuilder]: At program point L167-1(lines 167 171) the Hoare annotation is: true [2022-11-23 14:53:22,032 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 95 103) the Hoare annotation is: true [2022-11-23 14:53:22,032 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 95 103) no Hoare annotation was computed. [2022-11-23 14:53:22,032 INFO L899 garLoopResultBuilder]: For program point L898-1(lines 898 904) no Hoare annotation was computed. [2022-11-23 14:53:22,032 INFO L899 garLoopResultBuilder]: For program point L849(lines 849 855) no Hoare annotation was computed. [2022-11-23 14:53:22,032 INFO L895 garLoopResultBuilder]: At program point L849-1(lines 849 855) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-23 14:53:22,032 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-23 14:53:22,033 INFO L895 garLoopResultBuilder]: At program point L239(lines 239 246) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-23 14:53:22,033 INFO L902 garLoopResultBuilder]: At program point L941(lines 878 945) the Hoare annotation is: true [2022-11-23 14:53:22,033 INFO L902 garLoopResultBuilder]: At program point L239-2(lines 239 246) the Hoare annotation is: true [2022-11-23 14:53:22,033 INFO L899 garLoopResultBuilder]: For program point L908(lines 908 914) no Hoare annotation was computed. [2022-11-23 14:53:22,033 INFO L899 garLoopResultBuilder]: For program point L908-1(lines 908 914) no Hoare annotation was computed. [2022-11-23 14:53:22,033 INFO L895 garLoopResultBuilder]: At program point L900(line 900) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse2 (= 0 ~systemActive~0)) (and (= ~methaneLevelCritical~0 0) .cse1 .cse2))) [2022-11-23 14:53:22,033 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 14:53:22,034 INFO L895 garLoopResultBuilder]: At program point L851(line 851) the Hoare annotation is: (let ((.cse6 (not (= ~pumpRunning~0 0))) (.cse5 (= ~methaneLevelCritical~0 0))) (let ((.cse4 (not (= 0 ~systemActive~0))) (.cse0 (or .cse6 .cse5 (not (= |isMethaneAlarm_#res| 0)))) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (or .cse6 .cse5 (not (= |isMethaneAlarm_#t~ret38| 0)))) (.cse3 (or .cse6 .cse5 (not (= |isMethaneLevelCritical_#res| 0))))) (or (and (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse1 .cse4) (and .cse0 (= 1 ~systemActive~0) .cse1 .cse2 .cse3)))) [2022-11-23 14:53:22,034 INFO L895 garLoopResultBuilder]: At program point L938(lines 887 939) the Hoare annotation is: false [2022-11-23 14:53:22,034 INFO L899 garLoopResultBuilder]: For program point L926(lines 926 932) no Hoare annotation was computed. [2022-11-23 14:53:22,034 INFO L895 garLoopResultBuilder]: At program point L926-2(lines 918 933) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= 1 ~systemActive~0) .cse0) (and (= ~pumpRunning~0 0) .cse0 (= 0 ~systemActive~0)))) [2022-11-23 14:53:22,034 INFO L899 garLoopResultBuilder]: For program point L889(lines 888 937) no Hoare annotation was computed. [2022-11-23 14:53:22,034 INFO L895 garLoopResultBuilder]: At program point L918(lines 918 933) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= 1 ~systemActive~0) .cse0) (and (= ~pumpRunning~0 0) .cse0 (= 0 ~systemActive~0)))) [2022-11-23 14:53:22,034 INFO L895 garLoopResultBuilder]: At program point L910(line 910) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= 1 ~systemActive~0) .cse0) (and (= ~pumpRunning~0 0) .cse0 (= 0 ~systemActive~0)))) [2022-11-23 14:53:22,034 INFO L895 garLoopResultBuilder]: At program point L935(lines 888 937) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse2 (= 0 ~systemActive~0)) (and (= ~methaneLevelCritical~0 0) .cse1 .cse2))) [2022-11-23 14:53:22,035 INFO L899 garLoopResultBuilder]: For program point L898(lines 898 904) no Hoare annotation was computed. [2022-11-23 14:53:22,035 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 71 82) no Hoare annotation was computed. [2022-11-23 14:53:22,035 INFO L902 garLoopResultBuilder]: At program point waterRiseENTRY(lines 71 82) the Hoare annotation is: true [2022-11-23 14:53:22,035 INFO L895 garLoopResultBuilder]: At program point L700(line 700) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1)) (or (not (= ~waterLevel~0 1)) .cse2 (= |processEnvironment__wrappee__methaneQuery_~tmp~5#1| 0) .cse0) (or .cse2 .cse1 .cse0))) [2022-11-23 14:53:22,035 INFO L899 garLoopResultBuilder]: For program point L694(lines 694 702) no Hoare annotation was computed. [2022-11-23 14:53:22,036 INFO L895 garLoopResultBuilder]: At program point L690(lines 690 707) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0))) [2022-11-23 14:53:22,036 INFO L895 garLoopResultBuilder]: At program point L750(line 750) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1)) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (and (not (= ~waterLevel~0 1)) .cse1)))) [2022-11-23 14:53:22,036 INFO L895 garLoopResultBuilder]: At program point L750-1(line 750) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1)) (or (and (not (= ~waterLevel~0 1)) .cse1 (= |processEnvironment__wrappee__methaneQuery_activatePump_#t~ret37#1| ~methaneLevelCritical~0)) (not (= |old(~pumpRunning~0)| 0)) .cse0))) [2022-11-23 14:53:22,036 INFO L895 garLoopResultBuilder]: At program point L705(line 705) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0))) [2022-11-23 14:53:22,036 INFO L899 garLoopResultBuilder]: For program point L705-1(lines 686 710) no Hoare annotation was computed. [2022-11-23 14:53:22,037 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 686 710) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0))) [2022-11-23 14:53:22,037 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 686 710) no Hoare annotation was computed. [2022-11-23 14:53:22,037 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 770 780) the Hoare annotation is: true [2022-11-23 14:53:22,037 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 770 780) no Hoare annotation was computed. [2022-11-23 14:53:22,037 INFO L902 garLoopResultBuilder]: At program point L775(line 775) the Hoare annotation is: true [2022-11-23 14:53:22,038 INFO L899 garLoopResultBuilder]: For program point L775-1(line 775) no Hoare annotation was computed. [2022-11-23 14:53:22,042 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:53:22,044 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:53:22,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:53:22 BoogieIcfgContainer [2022-11-23 14:53:22,073 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:53:22,074 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:53:22,074 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:53:22,074 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:53:22,075 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:52:37" (3/4) ... [2022-11-23 14:53:22,078 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 14:53:22,085 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-23 14:53:22,085 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-23 14:53:22,085 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-23 14:53:22,085 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-23 14:53:22,086 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-23 14:53:22,086 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-23 14:53:22,086 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-23 14:53:22,086 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-11-23 14:53:22,087 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-11-23 14:53:22,095 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 45 nodes and edges [2022-11-23 14:53:22,095 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-23 14:53:22,096 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-23 14:53:22,096 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 14:53:22,097 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 14:53:22,128 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || waterLevel == 1) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == systemActive)) || !(methaneLevelCritical == 1)) || waterLevel == 1)) && (pumpRunning == \old(pumpRunning) || !(1 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 1)) || waterLevel == 1) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 0)) || waterLevel == 1) || !(0 == systemActive)) [2022-11-23 14:53:22,129 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || waterLevel == 1) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == systemActive)) || !(methaneLevelCritical == 1)) || waterLevel == 1)) && ((((((!(waterLevel == 1) && methaneLevelCritical == 0) && ((pumpRunning == 0 && !(methaneLevelCritical == 0)) || (methaneLevelCritical == 0 && pumpRunning == 1))) || !(1 == systemActive)) || ((pumpRunning == \old(pumpRunning) && methaneLevelCritical == 0) && tmp == methaneLevelCritical)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || (pumpRunning == 0 && tmp == methaneLevelCritical))) && ((!(1 == systemActive) || (tmp == methaneLevelCritical && ((pumpRunning == 0 && !(methaneLevelCritical == 0)) || (methaneLevelCritical == 0 && pumpRunning == 1)))) || !(\old(pumpRunning) == 1))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2022-11-23 14:53:22,130 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) [2022-11-23 14:53:22,130 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || waterLevel == 1) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == systemActive)) || waterLevel == 1) || !(0 == systemActive))) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == systemActive)) || !(methaneLevelCritical == 1)) || waterLevel == 1)) && (((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || !(tmp == 0)) || !(0 == systemActive))) && ((((!(1 == systemActive) || ((pumpRunning == \old(pumpRunning) && methaneLevelCritical == 0) && tmp == methaneLevelCritical)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || ((!(waterLevel == 1) && methaneLevelCritical == 0) && ((pumpRunning == 0 && !(tmp == 0)) || (tmp == 0 && pumpRunning == 1)))) || (pumpRunning == 0 && tmp == methaneLevelCritical))) && (((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || !(1 == systemActive)) || !(tmp == 0))) && (((!(\old(pumpRunning) == 0) || tmp == 0) || !(methaneLevelCritical == 0)) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 1)) || waterLevel == 1) || !(0 == systemActive))) && (((!(1 == systemActive) || (tmp == methaneLevelCritical && ((pumpRunning == 0 && !(tmp == 0)) || (tmp == 0 && pumpRunning == 1)))) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1))) && ((!(1 == systemActive) || tmp == 0) || !(methaneLevelCritical == 0)) [2022-11-23 14:53:22,131 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || waterLevel == 1) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(methaneLevelCritical == 0)) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == systemActive)) || !(methaneLevelCritical == 1)) || waterLevel == 1)) && (((!(\old(pumpRunning) == 0) || tmp == 0) || ((pumpRunning == 0 && tmp___0 <= 0) && 0 < tmp___0 + 1)) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || !(tmp == 0)) || !(0 == systemActive))) && ((((!(1 == systemActive) || ((pumpRunning == \old(pumpRunning) && methaneLevelCritical == 0) && tmp == methaneLevelCritical)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || ((!(waterLevel == 1) && methaneLevelCritical == 0) && ((pumpRunning == 0 && !(tmp == 0)) || (tmp == 0 && pumpRunning == 1)))) || (pumpRunning == 0 && tmp == methaneLevelCritical))) && (((!(\old(pumpRunning) == 0) || tmp == 0) || !(methaneLevelCritical == 0)) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 1)) || waterLevel == 1) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 0)) || waterLevel == 1) || !(0 == systemActive))) && (((!(1 == systemActive) || (tmp == methaneLevelCritical && ((pumpRunning == 0 && !(tmp == 0)) || (tmp == 0 && pumpRunning == 1)))) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1))) && (((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || !(1 == systemActive)) || ((tmp___0 <= 0 && 0 < tmp___0 + 1) && !(tmp == 0)))) && ((!(1 == systemActive) || tmp == 0) || !(methaneLevelCritical == 0)) [2022-11-23 14:53:22,132 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || !(methaneLevelCritical == 0)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) && ((((!(waterLevel == 1) && pumpRunning == 0) && aux-isMethaneAlarm()-aux == methaneLevelCritical) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) [2022-11-23 14:53:22,132 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(1 == systemActive) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2022-11-23 14:53:22,157 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a51e418-db12-4a81-be6c-7295b2177686/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 14:53:22,157 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:53:22,158 INFO L158 Benchmark]: Toolchain (without parser) took 45934.93ms. Allocated memory was 155.2MB in the beginning and 358.6MB in the end (delta: 203.4MB). Free memory was 113.3MB in the beginning and 157.1MB in the end (delta: -43.9MB). Peak memory consumption was 162.9MB. Max. memory is 16.1GB. [2022-11-23 14:53:22,158 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 155.2MB. Free memory is still 97.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:53:22,159 INFO L158 Benchmark]: CACSL2BoogieTranslator took 692.41ms. Allocated memory is still 155.2MB. Free memory was 112.9MB in the beginning and 94.5MB in the end (delta: 18.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-23 14:53:22,159 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.66ms. Allocated memory is still 155.2MB. Free memory was 94.1MB in the beginning and 91.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:53:22,160 INFO L158 Benchmark]: Boogie Preprocessor took 60.32ms. Allocated memory is still 155.2MB. Free memory was 91.9MB in the beginning and 90.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:53:22,160 INFO L158 Benchmark]: RCFGBuilder took 849.42ms. Allocated memory was 155.2MB in the beginning and 205.5MB in the end (delta: 50.3MB). Free memory was 90.3MB in the beginning and 173.2MB in the end (delta: -83.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-23 14:53:22,161 INFO L158 Benchmark]: TraceAbstraction took 44169.32ms. Allocated memory was 205.5MB in the beginning and 358.6MB in the end (delta: 153.1MB). Free memory was 172.2MB in the beginning and 163.4MB in the end (delta: 8.8MB). Peak memory consumption was 221.6MB. Max. memory is 16.1GB. [2022-11-23 14:53:22,161 INFO L158 Benchmark]: Witness Printer took 83.87ms. Allocated memory is still 358.6MB. Free memory was 163.4MB in the beginning and 157.1MB in the end (delta: 6.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 14:53:22,163 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 155.2MB. Free memory is still 97.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 692.41ms. Allocated memory is still 155.2MB. Free memory was 112.9MB in the beginning and 94.5MB in the end (delta: 18.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.66ms. Allocated memory is still 155.2MB. Free memory was 94.1MB in the beginning and 91.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.32ms. Allocated memory is still 155.2MB. Free memory was 91.9MB in the beginning and 90.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 849.42ms. Allocated memory was 155.2MB in the beginning and 205.5MB in the end (delta: 50.3MB). Free memory was 90.3MB in the beginning and 173.2MB in the end (delta: -83.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 44169.32ms. Allocated memory was 205.5MB in the beginning and 358.6MB in the end (delta: 153.1MB). Free memory was 172.2MB in the beginning and 163.4MB in the end (delta: 8.8MB). Peak memory consumption was 221.6MB. Max. memory is 16.1GB. * Witness Printer took 83.87ms. Allocated memory is still 358.6MB. Free memory was 163.4MB in the beginning and 157.1MB in the end (delta: 6.3MB). 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: 873]: 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 10 procedures, 71 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 44.1s, OverallIterations: 9, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 10.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 9.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1927 SdHoareTripleChecker+Valid, 4.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1906 mSDsluCounter, 3132 SdHoareTripleChecker+Invalid, 3.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2419 mSDsCounter, 1048 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5835 IncrementalHoareTripleChecker+Invalid, 6883 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1048 mSolverCounterUnsat, 713 mSDtfsCounter, 5835 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 403 GetRequests, 189 SyntacticMatches, 6 SemanticMatches, 208 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10401 ImplicationChecksByTransitivity, 21.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1431occurred in iteration=8, InterpolantAutomatonStates: 162, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 9 MinimizatonAttempts, 1103 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 40 LocationsWithAnnotation, 2367 PreInvPairs, 2685 NumberOfFragments, 1584 HoareAnnotationTreeSize, 2367 FomulaSimplifications, 7811 FormulaSimplificationTreeSizeReduction, 1.7s HoareSimplificationTime, 40 FomulaSimplificationsInter, 39478 FormulaSimplificationTreeSizeReductionInter, 7.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 473 NumberOfCodeBlocks, 473 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 503 ConstructedInterpolants, 0 QuantifiedInterpolants, 1379 SizeOfPredicates, 16 NumberOfNonLiveVariables, 535 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 12 InterpolantComputations, 8 PerfectInterpolantSequences, 140/149 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 888]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && 1 == systemActive) && splverifierCounter == 0) || ((pumpRunning == 0 && splverifierCounter == 0) && 0 == systemActive)) || ((methaneLevelCritical == 0 && 1 == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 878]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 849]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 750]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || !(methaneLevelCritical == 0)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) && ((((!(waterLevel == 1) && pumpRunning == 0) && aux-isMethaneAlarm()-aux == methaneLevelCritical) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) - InvariantResult [Line: 654]: Loop Invariant Derived loop invariant: ((((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || waterLevel == 1) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == systemActive)) || !(methaneLevelCritical == 1)) || waterLevel == 1)) && (pumpRunning == \old(pumpRunning) || !(1 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 1)) || waterLevel == 1) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 0)) || waterLevel == 1) || !(0 == systemActive)) - InvariantResult [Line: 621]: Loop Invariant Derived loop invariant: ((((((((((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || waterLevel == 1) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(methaneLevelCritical == 0)) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == systemActive)) || !(methaneLevelCritical == 1)) || waterLevel == 1)) && (((!(\old(pumpRunning) == 0) || tmp == 0) || ((pumpRunning == 0 && tmp___0 <= 0) && 0 < tmp___0 + 1)) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || !(tmp == 0)) || !(0 == systemActive))) && ((((!(1 == systemActive) || ((pumpRunning == \old(pumpRunning) && methaneLevelCritical == 0) && tmp == methaneLevelCritical)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || ((!(waterLevel == 1) && methaneLevelCritical == 0) && ((pumpRunning == 0 && !(tmp == 0)) || (tmp == 0 && pumpRunning == 1)))) || (pumpRunning == 0 && tmp == methaneLevelCritical))) && (((!(\old(pumpRunning) == 0) || tmp == 0) || !(methaneLevelCritical == 0)) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 1)) || waterLevel == 1) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 0)) || waterLevel == 1) || !(0 == systemActive))) && (((!(1 == systemActive) || (tmp == methaneLevelCritical && ((pumpRunning == 0 && !(tmp == 0)) || (tmp == 0 && pumpRunning == 1)))) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1))) && (((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || !(1 == systemActive)) || ((tmp___0 <= 0 && 0 < tmp___0 + 1) && !(tmp == 0)))) && ((!(1 == systemActive) || tmp == 0) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 873]: Loop Invariant Derived loop invariant: !(1 == systemActive) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 239]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 153]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 690]: Loop Invariant Derived loop invariant: ((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) - InvariantResult [Line: 239]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 887]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 918]: Loop Invariant Derived loop invariant: (1 == systemActive && splverifierCounter == 0) || ((pumpRunning == 0 && splverifierCounter == 0) && 0 == systemActive) - InvariantResult [Line: 629]: Loop Invariant Derived loop invariant: (((((((((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || waterLevel == 1) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == systemActive)) || waterLevel == 1) || !(0 == systemActive))) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == systemActive)) || !(methaneLevelCritical == 1)) || waterLevel == 1)) && (((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || !(tmp == 0)) || !(0 == systemActive))) && ((((!(1 == systemActive) || ((pumpRunning == \old(pumpRunning) && methaneLevelCritical == 0) && tmp == methaneLevelCritical)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || ((!(waterLevel == 1) && methaneLevelCritical == 0) && ((pumpRunning == 0 && !(tmp == 0)) || (tmp == 0 && pumpRunning == 1)))) || (pumpRunning == 0 && tmp == methaneLevelCritical))) && (((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || !(1 == systemActive)) || !(tmp == 0))) && (((!(\old(pumpRunning) == 0) || tmp == 0) || !(methaneLevelCritical == 0)) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 1)) || waterLevel == 1) || !(0 == systemActive))) && (((!(1 == systemActive) || (tmp == methaneLevelCritical && ((pumpRunning == 0 && !(tmp == 0)) || (tmp == 0 && pumpRunning == 1)))) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1))) && ((!(1 == systemActive) || tmp == 0) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 712]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || waterLevel == 1) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == systemActive)) || !(methaneLevelCritical == 1)) || waterLevel == 1)) && ((((((!(waterLevel == 1) && methaneLevelCritical == 0) && ((pumpRunning == 0 && !(methaneLevelCritical == 0)) || (methaneLevelCritical == 0 && pumpRunning == 1))) || !(1 == systemActive)) || ((pumpRunning == \old(pumpRunning) && methaneLevelCritical == 0) && tmp == methaneLevelCritical)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || (pumpRunning == 0 && tmp == methaneLevelCritical))) && ((!(1 == systemActive) || (tmp == methaneLevelCritical && ((pumpRunning == 0 && !(methaneLevelCritical == 0)) || (methaneLevelCritical == 0 && pumpRunning == 1)))) || !(\old(pumpRunning) == 1))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) RESULT: Ultimate proved your program to be correct! [2022-11-23 14:53:22,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a51e418-db12-4a81-be6c-7295b2177686/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