./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product45.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_f6a5da7f-55e1-4f2b-bdc1-1e98c0b1df0d/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a5da7f-55e1-4f2b-bdc1-1e98c0b1df0d/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_f6a5da7f-55e1-4f2b-bdc1-1e98c0b1df0d/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a5da7f-55e1-4f2b-bdc1-1e98c0b1df0d/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a5da7f-55e1-4f2b-bdc1-1e98c0b1df0d/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_f6a5da7f-55e1-4f2b-bdc1-1e98c0b1df0d/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 4c4adbf609ddd472cb6a462753c6f5cc9af64c97af02da4060f4102700285790 --- 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 15:03:02,535 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:03:02,537 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:03:02,565 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:03:02,566 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:03:02,567 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:03:02,568 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:03:02,572 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:03:02,577 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:03:02,583 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:03:02,585 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:03:02,588 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:03:02,589 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:03:02,594 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:03:02,597 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:03:02,599 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:03:02,601 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:03:02,602 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:03:02,604 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:03:02,611 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:03:02,612 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:03:02,614 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:03:02,617 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:03:02,617 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:03:02,627 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:03:02,628 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:03:02,628 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:03:02,630 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:03:02,630 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:03:02,631 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:03:02,632 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:03:02,633 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:03:02,634 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:03:02,636 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:03:02,638 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:03:02,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:03:02,640 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:03:02,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:03:02,640 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:03:02,642 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:03:02,642 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:03:02,643 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a5da7f-55e1-4f2b-bdc1-1e98c0b1df0d/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 15:03:02,687 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:03:02,688 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:03:02,688 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:03:02,688 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:03:02,689 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:03:02,689 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:03:02,689 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:03:02,690 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:03:02,690 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:03:02,690 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:03:02,690 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:03:02,690 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:03:02,691 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:03:02,691 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:03:02,691 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:03:02,691 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:03:02,691 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:03:02,692 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:03:02,692 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:03:02,693 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:03:02,693 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:03:02,693 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:03:02,693 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:03:02,693 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:03:02,694 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:03:02,694 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:03:02,694 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:03:02,694 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:03:02,697 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:03:02,697 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:03:02,698 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:03:02,698 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:03:02,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:03:02,698 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:03:02,699 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:03:02,699 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:03:02,700 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:03:02,700 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:03:02,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:03:02,701 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:03:02,701 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:03:02,701 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_f6a5da7f-55e1-4f2b-bdc1-1e98c0b1df0d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a5da7f-55e1-4f2b-bdc1-1e98c0b1df0d/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c4adbf609ddd472cb6a462753c6f5cc9af64c97af02da4060f4102700285790 [2022-11-23 15:03:02,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:03:02,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:03:02,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:03:02,967 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:03:02,968 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:03:02,969 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a5da7f-55e1-4f2b-bdc1-1e98c0b1df0d/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c [2022-11-23 15:03:06,056 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:03:06,373 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:03:06,378 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a5da7f-55e1-4f2b-bdc1-1e98c0b1df0d/sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c [2022-11-23 15:03:06,396 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a5da7f-55e1-4f2b-bdc1-1e98c0b1df0d/bin/utaipan-Q6hlc19bkW/data/20cd4df04/6610e127fc074d9d831028ef20aacba7/FLAG73b095602 [2022-11-23 15:03:06,410 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a5da7f-55e1-4f2b-bdc1-1e98c0b1df0d/bin/utaipan-Q6hlc19bkW/data/20cd4df04/6610e127fc074d9d831028ef20aacba7 [2022-11-23 15:03:06,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:03:06,414 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:03:06,415 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:03:06,415 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:03:06,419 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:03:06,420 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:03:06" (1/1) ... [2022-11-23 15:03:06,421 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e609aba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:06, skipping insertion in model container [2022-11-23 15:03:06,421 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:03:06" (1/1) ... [2022-11-23 15:03:06,429 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:03:06,488 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:03:06,674 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_f6a5da7f-55e1-4f2b-bdc1-1e98c0b1df0d/sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c[8617,8630] [2022-11-23 15:03:06,772 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:03:06,787 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:03:06,850 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_f6a5da7f-55e1-4f2b-bdc1-1e98c0b1df0d/sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c[8617,8630] [2022-11-23 15:03:06,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:03:06,933 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:03:06,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:06 WrapperNode [2022-11-23 15:03:06,933 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:03:06,934 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:03:06,934 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:03:06,935 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:03:06,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:06" (1/1) ... [2022-11-23 15:03:06,956 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:06" (1/1) ... [2022-11-23 15:03:06,980 INFO L138 Inliner]: procedures = 54, calls = 100, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 194 [2022-11-23 15:03:06,980 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:03:06,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:03:06,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:03:06,981 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:03:06,991 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:06" (1/1) ... [2022-11-23 15:03:06,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:06" (1/1) ... [2022-11-23 15:03:06,993 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:06" (1/1) ... [2022-11-23 15:03:06,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:06" (1/1) ... [2022-11-23 15:03:06,999 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:06" (1/1) ... [2022-11-23 15:03:07,004 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:06" (1/1) ... [2022-11-23 15:03:07,006 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:06" (1/1) ... [2022-11-23 15:03:07,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:06" (1/1) ... [2022-11-23 15:03:07,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:03:07,011 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:03:07,011 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:03:07,011 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:03:07,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:06" (1/1) ... [2022-11-23 15:03:07,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:03:07,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a5da7f-55e1-4f2b-bdc1-1e98c0b1df0d/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:03:07,059 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a5da7f-55e1-4f2b-bdc1-1e98c0b1df0d/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:03:07,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a5da7f-55e1-4f2b-bdc1-1e98c0b1df0d/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:03:07,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:03:07,107 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-23 15:03:07,107 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-23 15:03:07,107 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-23 15:03:07,107 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-23 15:03:07,108 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-23 15:03:07,108 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-23 15:03:07,108 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-23 15:03:07,108 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-23 15:03:07,109 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-23 15:03:07,109 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-23 15:03:07,109 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-11-23 15:03:07,109 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-11-23 15:03:07,110 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-11-23 15:03:07,110 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-11-23 15:03:07,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:03:07,110 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-23 15:03:07,110 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-23 15:03:07,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:03:07,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:03:07,186 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:03:07,188 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:03:07,586 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:03:07,725 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:03:07,725 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 15:03:07,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:03:07 BoogieIcfgContainer [2022-11-23 15:03:07,728 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:03:07,731 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:03:07,731 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:03:07,734 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:03:07,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:03:06" (1/3) ... [2022-11-23 15:03:07,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc5a50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:03:07, skipping insertion in model container [2022-11-23 15:03:07,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:06" (2/3) ... [2022-11-23 15:03:07,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc5a50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:03:07, skipping insertion in model container [2022-11-23 15:03:07,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:03:07" (3/3) ... [2022-11-23 15:03:07,738 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product45.cil.c [2022-11-23 15:03:07,758 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:03:07,758 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:03:07,811 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:03:07,817 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;@3ebebbea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:03:07,818 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:03:07,822 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 40 states have (on average 1.4) internal successors, (56), 48 states have internal predecessors, (56), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-23 15:03:07,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-23 15:03:07,832 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:03:07,832 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 15:03:07,833 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:03:07,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:03:07,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1548548902, now seen corresponding path program 1 times [2022-11-23 15:03:07,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:03:07,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046418484] [2022-11-23 15:03:07,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:03:07,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:03:07,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:03:08,022 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 15:03:08,023 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:03:08,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046418484] [2022-11-23 15:03:08,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046418484] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:03:08,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:03:08,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:03:08,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899219261] [2022-11-23 15:03:08,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:03:08,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 15:03:08,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:03:08,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 15:03:08,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:03:08,085 INFO L87 Difference]: Start difference. First operand has 64 states, 40 states have (on average 1.4) internal successors, (56), 48 states have internal predecessors, (56), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:03:08,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:03:08,191 INFO L93 Difference]: Finished difference Result 126 states and 169 transitions. [2022-11-23 15:03:08,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 15:03:08,194 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-23 15:03:08,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:03:08,206 INFO L225 Difference]: With dead ends: 126 [2022-11-23 15:03:08,206 INFO L226 Difference]: Without dead ends: 59 [2022-11-23 15:03:08,211 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 15:03:08,217 INFO L413 NwaCegarLoop]: 63 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, 63 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:03:08,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:03:08,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-23 15:03:08,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-11-23 15:03:08,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 44 states have internal predecessors, (48), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-23 15:03:08,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 75 transitions. [2022-11-23 15:03:08,272 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 75 transitions. Word has length 17 [2022-11-23 15:03:08,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:03:08,273 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 75 transitions. [2022-11-23 15:03:08,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:03:08,274 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 75 transitions. [2022-11-23 15:03:08,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-23 15:03:08,276 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:03:08,276 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:03:08,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:03:08,277 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:03:08,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:03:08,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1977184354, now seen corresponding path program 1 times [2022-11-23 15:03:08,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:03:08,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184999031] [2022-11-23 15:03:08,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:03:08,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:03:08,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:03:08,501 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 15:03:08,501 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:03:08,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184999031] [2022-11-23 15:03:08,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184999031] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:03:08,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:03:08,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:03:08,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036248562] [2022-11-23 15:03:08,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:03:08,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:03:08,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:03:08,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:03:08,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:03:08,505 INFO L87 Difference]: Start difference. First operand 59 states and 75 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:03:08,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:03:08,558 INFO L93 Difference]: Finished difference Result 95 states and 121 transitions. [2022-11-23 15:03:08,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:03:08,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-11-23 15:03:08,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:03:08,563 INFO L225 Difference]: With dead ends: 95 [2022-11-23 15:03:08,569 INFO L226 Difference]: Without dead ends: 51 [2022-11-23 15:03:08,571 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 15:03:08,572 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 7 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:03:08,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 89 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:03:08,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-23 15:03:08,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-11-23 15:03:08,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 32 states have (on average 1.3125) internal successors, (42), 39 states have internal predecessors, (42), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-23 15:03:08,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 64 transitions. [2022-11-23 15:03:08,590 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 64 transitions. Word has length 18 [2022-11-23 15:03:08,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:03:08,590 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 64 transitions. [2022-11-23 15:03:08,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:03:08,591 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 64 transitions. [2022-11-23 15:03:08,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-23 15:03:08,593 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:03:08,593 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 15:03:08,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:03:08,594 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:03:08,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:03:08,596 INFO L85 PathProgramCache]: Analyzing trace with hash -570975999, now seen corresponding path program 1 times [2022-11-23 15:03:08,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:03:08,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370843593] [2022-11-23 15:03:08,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:03:08,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:03:08,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:03:08,732 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 15:03:08,732 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:03:08,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370843593] [2022-11-23 15:03:08,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370843593] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:03:08,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:03:08,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:03:08,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93106346] [2022-11-23 15:03:08,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:03:08,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:03:08,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:03:08,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:03:08,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:03:08,735 INFO L87 Difference]: Start difference. First operand 51 states and 64 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 15:03:08,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:03:08,808 INFO L93 Difference]: Finished difference Result 100 states and 127 transitions. [2022-11-23 15:03:08,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:03:08,810 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 15:03:08,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:03:08,812 INFO L225 Difference]: With dead ends: 100 [2022-11-23 15:03:08,812 INFO L226 Difference]: Without dead ends: 51 [2022-11-23 15:03:08,813 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 15:03:08,814 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 53 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:03:08,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 47 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:03:08,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-23 15:03:08,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-11-23 15:03:08,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 32 states have (on average 1.28125) internal successors, (41), 39 states have internal predecessors, (41), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-23 15:03:08,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 63 transitions. [2022-11-23 15:03:08,827 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 63 transitions. Word has length 20 [2022-11-23 15:03:08,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:03:08,828 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 63 transitions. [2022-11-23 15:03:08,828 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 15:03:08,828 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 63 transitions. [2022-11-23 15:03:08,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-23 15:03:08,829 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:03:08,830 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:03:08,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:03:08,830 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:03:08,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:03:08,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1305235151, now seen corresponding path program 1 times [2022-11-23 15:03:08,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:03:08,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623101085] [2022-11-23 15:03:08,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:03:08,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:03:08,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:03:08,977 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 15:03:08,977 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:03:08,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623101085] [2022-11-23 15:03:08,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623101085] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:03:08,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:03:08,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:03:08,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476280278] [2022-11-23 15:03:08,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:03:08,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:03:08,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:03:08,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:03:08,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:03:08,981 INFO L87 Difference]: Start difference. First operand 51 states and 63 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:03:09,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:03:09,247 INFO L93 Difference]: Finished difference Result 165 states and 204 transitions. [2022-11-23 15:03:09,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:03:09,248 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 30 [2022-11-23 15:03:09,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:03:09,250 INFO L225 Difference]: With dead ends: 165 [2022-11-23 15:03:09,250 INFO L226 Difference]: Without dead ends: 116 [2022-11-23 15:03:09,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:03:09,252 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 116 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:03:09,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 151 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:03:09,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-11-23 15:03:09,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 110. [2022-11-23 15:03:09,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 73 states have (on average 1.2602739726027397) internal successors, (92), 80 states have internal predecessors, (92), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2022-11-23 15:03:09,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 133 transitions. [2022-11-23 15:03:09,289 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 133 transitions. Word has length 30 [2022-11-23 15:03:09,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:03:09,290 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 133 transitions. [2022-11-23 15:03:09,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:03:09,290 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 133 transitions. [2022-11-23 15:03:09,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 15:03:09,294 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:03:09,294 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:03:09,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:03:09,294 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:03:09,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:03:09,295 INFO L85 PathProgramCache]: Analyzing trace with hash -160661025, now seen corresponding path program 1 times [2022-11-23 15:03:09,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:03:09,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278627267] [2022-11-23 15:03:09,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:03:09,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:03:09,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:03:09,527 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 15:03:09,527 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:03:09,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278627267] [2022-11-23 15:03:09,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278627267] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:03:09,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:03:09,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:03:09,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70396938] [2022-11-23 15:03:09,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:03:09,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:03:09,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:03:09,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:03:09,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:03:09,538 INFO L87 Difference]: Start difference. First operand 110 states and 133 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-23 15:03:09,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:03:09,755 INFO L93 Difference]: Finished difference Result 326 states and 402 transitions. [2022-11-23 15:03:09,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:03:09,756 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2022-11-23 15:03:09,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:03:09,758 INFO L225 Difference]: With dead ends: 326 [2022-11-23 15:03:09,759 INFO L226 Difference]: Without dead ends: 218 [2022-11-23 15:03:09,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-23 15:03:09,761 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 97 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:03:09,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 202 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:03:09,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-11-23 15:03:09,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 206. [2022-11-23 15:03:09,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 137 states have (on average 1.218978102189781) internal successors, (167), 148 states have internal predecessors, (167), 34 states have call successors, (34), 28 states have call predecessors, (34), 34 states have return successors, (44), 36 states have call predecessors, (44), 34 states have call successors, (44) [2022-11-23 15:03:09,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 245 transitions. [2022-11-23 15:03:09,801 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 245 transitions. Word has length 31 [2022-11-23 15:03:09,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:03:09,802 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 245 transitions. [2022-11-23 15:03:09,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-23 15:03:09,802 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 245 transitions. [2022-11-23 15:03:09,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-23 15:03:09,804 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:03:09,804 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:03:09,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:03:09,804 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:03:09,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:03:09,805 INFO L85 PathProgramCache]: Analyzing trace with hash -591971774, now seen corresponding path program 1 times [2022-11-23 15:03:09,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:03:09,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742106501] [2022-11-23 15:03:09,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:03:09,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:03:09,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:03:10,138 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 15:03:10,140 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:03:10,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742106501] [2022-11-23 15:03:10,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742106501] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:03:10,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:03:10,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 15:03:10,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789747355] [2022-11-23 15:03:10,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:03:10,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:03:10,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:03:10,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:03:10,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:03:10,144 INFO L87 Difference]: Start difference. First operand 206 states and 245 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-23 15:03:10,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:03:10,405 INFO L93 Difference]: Finished difference Result 418 states and 513 transitions. [2022-11-23 15:03:10,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 15:03:10,406 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 34 [2022-11-23 15:03:10,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:03:10,409 INFO L225 Difference]: With dead ends: 418 [2022-11-23 15:03:10,409 INFO L226 Difference]: Without dead ends: 310 [2022-11-23 15:03:10,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-23 15:03:10,411 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 139 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:03:10,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 313 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:03:10,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2022-11-23 15:03:10,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 288. [2022-11-23 15:03:10,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 192 states have (on average 1.1979166666666667) internal successors, (230), 206 states have internal predecessors, (230), 48 states have call successors, (48), 40 states have call predecessors, (48), 47 states have return successors, (63), 50 states have call predecessors, (63), 48 states have call successors, (63) [2022-11-23 15:03:10,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 341 transitions. [2022-11-23 15:03:10,459 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 341 transitions. Word has length 34 [2022-11-23 15:03:10,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:03:10,460 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 341 transitions. [2022-11-23 15:03:10,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-23 15:03:10,460 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 341 transitions. [2022-11-23 15:03:10,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-23 15:03:10,462 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:03:10,462 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 15:03:10,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 15:03:10,462 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:03:10,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:03:10,463 INFO L85 PathProgramCache]: Analyzing trace with hash 924459008, now seen corresponding path program 1 times [2022-11-23 15:03:10,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:03:10,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334877252] [2022-11-23 15:03:10,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:03:10,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:03:10,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:03:10,739 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 15:03:10,739 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:03:10,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334877252] [2022-11-23 15:03:10,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334877252] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:03:10,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:03:10,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 15:03:10,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769862675] [2022-11-23 15:03:10,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:03:10,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 15:03:10,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:03:10,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 15:03:10,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-23 15:03:10,741 INFO L87 Difference]: Start difference. First operand 288 states and 341 transitions. Second operand has 11 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 2 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 15:03:11,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:03:11,382 INFO L93 Difference]: Finished difference Result 970 states and 1199 transitions. [2022-11-23 15:03:11,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-23 15:03:11,383 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 2 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) Word has length 39 [2022-11-23 15:03:11,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:03:11,389 INFO L225 Difference]: With dead ends: 970 [2022-11-23 15:03:11,391 INFO L226 Difference]: Without dead ends: 639 [2022-11-23 15:03:11,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=333, Unknown=0, NotChecked=0, Total=420 [2022-11-23 15:03:11,397 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 96 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:03:11,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 753 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 15:03:11,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2022-11-23 15:03:11,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 604. [2022-11-23 15:03:11,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 399 states have (on average 1.1829573934837092) internal successors, (472), 424 states have internal predecessors, (472), 106 states have call successors, (106), 90 states have call predecessors, (106), 98 states have return successors, (154), 103 states have call predecessors, (154), 106 states have call successors, (154) [2022-11-23 15:03:11,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 732 transitions. [2022-11-23 15:03:11,539 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 732 transitions. Word has length 39 [2022-11-23 15:03:11,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:03:11,540 INFO L495 AbstractCegarLoop]: Abstraction has 604 states and 732 transitions. [2022-11-23 15:03:11,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 2 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 15:03:11,541 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 732 transitions. [2022-11-23 15:03:11,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-23 15:03:11,547 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:03:11,548 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-11-23 15:03:11,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 15:03:11,549 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:03:11,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:03:11,549 INFO L85 PathProgramCache]: Analyzing trace with hash -286999275, now seen corresponding path program 1 times [2022-11-23 15:03:11,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:03:11,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104754149] [2022-11-23 15:03:11,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:03:11,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:03:11,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:03:11,922 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-23 15:03:11,923 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:03:11,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104754149] [2022-11-23 15:03:11,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104754149] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:03:11,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1919339562] [2022-11-23 15:03:11,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:03:11,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:03:11,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a5da7f-55e1-4f2b-bdc1-1e98c0b1df0d/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:03:11,934 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a5da7f-55e1-4f2b-bdc1-1e98c0b1df0d/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:03:11,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a5da7f-55e1-4f2b-bdc1-1e98c0b1df0d/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 15:03:12,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:03:12,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-23 15:03:12,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:03:12,707 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 15:03:12,707 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:03:12,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1919339562] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:03:12,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 15:03:12,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 18 [2022-11-23 15:03:12,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154367622] [2022-11-23 15:03:12,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:03:12,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 15:03:12,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:03:12,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 15:03:12,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2022-11-23 15:03:12,712 INFO L87 Difference]: Start difference. First operand 604 states and 732 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 5 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 5 states have call successors, (9) [2022-11-23 15:03:13,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:03:13,422 INFO L93 Difference]: Finished difference Result 929 states and 1139 transitions. [2022-11-23 15:03:13,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 15:03:13,422 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 5 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 5 states have call successors, (9) Word has length 67 [2022-11-23 15:03:13,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:03:13,426 INFO L225 Difference]: With dead ends: 929 [2022-11-23 15:03:13,426 INFO L226 Difference]: Without dead ends: 327 [2022-11-23 15:03:13,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=102, Invalid=498, Unknown=0, NotChecked=0, Total=600 [2022-11-23 15:03:13,429 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 136 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:03:13,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 166 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 15:03:13,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-11-23 15:03:13,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 285. [2022-11-23 15:03:13,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 191 states have (on average 1.1832460732984293) internal successors, (226), 203 states have internal predecessors, (226), 48 states have call successors, (48), 45 states have call predecessors, (48), 45 states have return successors, (64), 46 states have call predecessors, (64), 48 states have call successors, (64) [2022-11-23 15:03:13,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 338 transitions. [2022-11-23 15:03:13,491 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 338 transitions. Word has length 67 [2022-11-23 15:03:13,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:03:13,491 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 338 transitions. [2022-11-23 15:03:13,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 5 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 5 states have call successors, (9) [2022-11-23 15:03:13,491 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 338 transitions. [2022-11-23 15:03:13,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-23 15:03:13,494 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:03:13,494 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-11-23 15:03:13,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a5da7f-55e1-4f2b-bdc1-1e98c0b1df0d/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 15:03:13,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a5da7f-55e1-4f2b-bdc1-1e98c0b1df0d/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-23 15:03:13,700 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:03:13,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:03:13,701 INFO L85 PathProgramCache]: Analyzing trace with hash -765996758, now seen corresponding path program 1 times [2022-11-23 15:03:13,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:03:13,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521371142] [2022-11-23 15:03:13,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:03:13,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:03:13,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:03:14,067 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-23 15:03:14,067 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:03:14,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521371142] [2022-11-23 15:03:14,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521371142] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:03:14,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012315558] [2022-11-23 15:03:14,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:03:14,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:03:14,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a5da7f-55e1-4f2b-bdc1-1e98c0b1df0d/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:03:14,069 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a5da7f-55e1-4f2b-bdc1-1e98c0b1df0d/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:03:14,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a5da7f-55e1-4f2b-bdc1-1e98c0b1df0d/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 15:03:14,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:03:14,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-23 15:03:14,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:03:14,490 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 1 proven. 27 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 15:03:14,490 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:03:14,949 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-23 15:03:14,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012315558] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:03:14,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [318221716] [2022-11-23 15:03:15,004 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2022-11-23 15:03:15,004 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:03:15,007 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:03:15,013 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:03:15,014 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:03:18,362 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 44 for LOIs [2022-11-23 15:03:18,370 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 43 for LOIs [2022-11-23 15:03:18,745 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 40 for LOIs [2022-11-23 15:03:18,932 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 22 for LOIs [2022-11-23 15:03:18,955 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 38 for LOIs [2022-11-23 15:03:18,960 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 24 for LOIs [2022-11-23 15:03:18,964 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:03:25,204 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8126#(and (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~5#1|) (<= 0 |old(~pumpRunning~0)|) (= |timeShift_getWaterLevel_~retValue_acc~1#1| ~waterLevel~0) (= ~head~0.offset 0) (<= 1 ~systemActive~0) (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1|) (= |timeShift_getWaterLevel_#res#1| |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1|) (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~5#1|) (<= |#NULL.offset| 0) (= 0 |timeShift___utac_acc__Specification3_spec__1_~tmp___1~0#1|) (= |timeShift_getWaterLevel_~retValue_acc~1#1| |timeShift_getWaterLevel_#res#1|) (<= 0 ~head~0.base) (= |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1| 0) (<= ~head~0.base 0) (<= 0 |#NULL.offset|) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification3_spec__1_~tmp___1~0#1|) (<= 0 |#StackHeapBarrier|) (<= ~systemActive~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0) (= 2 |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1|))' at error location [2022-11-23 15:03:25,204 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:03:25,204 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:03:25,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 11] total 27 [2022-11-23 15:03:25,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889136420] [2022-11-23 15:03:25,205 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 15:03:25,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-23 15:03:25,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:03:25,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-23 15:03:25,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=320, Invalid=3220, Unknown=0, NotChecked=0, Total=3540 [2022-11-23 15:03:25,207 INFO L87 Difference]: Start difference. First operand 285 states and 338 transitions. Second operand has 27 states, 21 states have (on average 5.714285714285714) internal successors, (120), 20 states have internal predecessors, (120), 11 states have call successors, (30), 8 states have call predecessors, (30), 12 states have return successors, (28), 15 states have call predecessors, (28), 11 states have call successors, (28) [2022-11-23 15:03:28,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:03:28,487 INFO L93 Difference]: Finished difference Result 979 states and 1186 transitions. [2022-11-23 15:03:28,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-11-23 15:03:28,488 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 21 states have (on average 5.714285714285714) internal successors, (120), 20 states have internal predecessors, (120), 11 states have call successors, (30), 8 states have call predecessors, (30), 12 states have return successors, (28), 15 states have call predecessors, (28), 11 states have call successors, (28) Word has length 70 [2022-11-23 15:03:28,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:03:28,492 INFO L225 Difference]: With dead ends: 979 [2022-11-23 15:03:28,492 INFO L226 Difference]: Without dead ends: 696 [2022-11-23 15:03:28,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 167 SyntacticMatches, 10 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5264 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=1490, Invalid=13516, Unknown=0, NotChecked=0, Total=15006 [2022-11-23 15:03:28,499 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 1134 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 1766 mSolverCounterSat, 688 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1141 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 2454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 688 IncrementalHoareTripleChecker+Valid, 1766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:03:28,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1141 Valid, 216 Invalid, 2454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [688 Valid, 1766 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-23 15:03:28,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2022-11-23 15:03:28,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 359. [2022-11-23 15:03:28,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 241 states have (on average 1.1410788381742738) internal successors, (275), 257 states have internal predecessors, (275), 59 states have call successors, (59), 57 states have call predecessors, (59), 58 states have return successors, (69), 58 states have call predecessors, (69), 59 states have call successors, (69) [2022-11-23 15:03:28,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 403 transitions. [2022-11-23 15:03:28,548 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 403 transitions. Word has length 70 [2022-11-23 15:03:28,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:03:28,549 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 403 transitions. [2022-11-23 15:03:28,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 21 states have (on average 5.714285714285714) internal successors, (120), 20 states have internal predecessors, (120), 11 states have call successors, (30), 8 states have call predecessors, (30), 12 states have return successors, (28), 15 states have call predecessors, (28), 11 states have call successors, (28) [2022-11-23 15:03:28,549 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 403 transitions. [2022-11-23 15:03:28,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-23 15:03:28,550 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:03:28,551 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-11-23 15:03:28,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a5da7f-55e1-4f2b-bdc1-1e98c0b1df0d/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 15:03:28,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a5da7f-55e1-4f2b-bdc1-1e98c0b1df0d/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:03:28,764 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:03:28,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:03:28,764 INFO L85 PathProgramCache]: Analyzing trace with hash 838710707, now seen corresponding path program 1 times [2022-11-23 15:03:28,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:03:28,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498762129] [2022-11-23 15:03:28,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:03:28,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:03:28,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:03:28,937 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-23 15:03:28,937 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:03:28,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498762129] [2022-11-23 15:03:28,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498762129] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:03:28,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377459210] [2022-11-23 15:03:28,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:03:28,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:03:28,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a5da7f-55e1-4f2b-bdc1-1e98c0b1df0d/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:03:28,940 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a5da7f-55e1-4f2b-bdc1-1e98c0b1df0d/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:03:28,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a5da7f-55e1-4f2b-bdc1-1e98c0b1df0d/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 15:03:29,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:03:29,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-23 15:03:29,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:03:29,425 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-23 15:03:29,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:03:29,984 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-23 15:03:29,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1377459210] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:03:29,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1361106471] [2022-11-23 15:03:29,990 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-11-23 15:03:29,991 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:03:29,992 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:03:29,992 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:03:29,993 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:03:32,270 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 50 for LOIs [2022-11-23 15:03:32,279 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 27 for LOIs [2022-11-23 15:03:32,640 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 24 for LOIs [2022-11-23 15:03:32,778 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 50 for LOIs [2022-11-23 15:03:32,869 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 22 for LOIs [2022-11-23 15:03:32,871 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:03:39,399 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10736#(and (<= ~cleanupTimeShifts~0 4) (<= ~head~0.offset 0) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~5#1|) (<= 0 |#NULL.base|) (<= 0 |old(~pumpRunning~0)|) (<= 0 ~head~0.offset) (= |timeShift_getWaterLevel_~retValue_acc~1#1| ~waterLevel~0) (<= 1 ~systemActive~0) (= |timeShift_getWaterLevel_#res#1| |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1|) (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~5#1|) (<= |#NULL.offset| 0) (= 0 |timeShift___utac_acc__Specification3_spec__1_~tmp___1~0#1|) (= |timeShift_getWaterLevel_~retValue_acc~1#1| |timeShift_getWaterLevel_#res#1|) (<= 4 ~cleanupTimeShifts~0) (<= |old(~pumpRunning~0)| 0) (<= ~methaneLevelCritical~0 0) (<= 0 ~head~0.base) (= |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1| 0) (<= |#NULL.base| 0) (<= 0 ~methaneLevelCritical~0) (= |old(~waterLevel~0)| ~waterLevel~0) (<= ~head~0.base 0) (<= 0 |#NULL.offset|) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification3_spec__1_~tmp___1~0#1|) (<= 0 |#StackHeapBarrier|) (<= ~systemActive~0 1) (= 2 |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1|))' at error location [2022-11-23 15:03:39,399 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:03:39,400 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:03:39,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12, 11] total 28 [2022-11-23 15:03:39,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721104155] [2022-11-23 15:03:39,401 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 15:03:39,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-23 15:03:39,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:03:39,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-23 15:03:39,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=458, Invalid=3324, Unknown=0, NotChecked=0, Total=3782 [2022-11-23 15:03:39,407 INFO L87 Difference]: Start difference. First operand 359 states and 403 transitions. Second operand has 28 states, 25 states have (on average 4.48) internal successors, (112), 25 states have internal predecessors, (112), 10 states have call successors, (24), 8 states have call predecessors, (24), 9 states have return successors, (22), 13 states have call predecessors, (22), 9 states have call successors, (22) [2022-11-23 15:03:45,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:03:45,047 INFO L93 Difference]: Finished difference Result 1588 states and 1886 transitions. [2022-11-23 15:03:45,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-11-23 15:03:45,048 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 25 states have (on average 4.48) internal successors, (112), 25 states have internal predecessors, (112), 10 states have call successors, (24), 8 states have call predecessors, (24), 9 states have return successors, (22), 13 states have call predecessors, (22), 9 states have call successors, (22) Word has length 68 [2022-11-23 15:03:45,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:03:45,049 INFO L225 Difference]: With dead ends: 1588 [2022-11-23 15:03:45,049 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 15:03:45,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 170 SyntacticMatches, 5 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9002 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=3503, Invalid=21937, Unknown=0, NotChecked=0, Total=25440 [2022-11-23 15:03:45,058 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 906 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 2569 mSolverCounterSat, 805 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 910 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 3374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 805 IncrementalHoareTripleChecker+Valid, 2569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:03:45,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [910 Valid, 541 Invalid, 3374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [805 Valid, 2569 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-23 15:03:45,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 15:03:45,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 15:03:45,059 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 15:03:45,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 15:03:45,060 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 68 [2022-11-23 15:03:45,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:03:45,060 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 15:03:45,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 25 states have (on average 4.48) internal successors, (112), 25 states have internal predecessors, (112), 10 states have call successors, (24), 8 states have call predecessors, (24), 9 states have return successors, (22), 13 states have call predecessors, (22), 9 states have call successors, (22) [2022-11-23 15:03:45,061 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 15:03:45,061 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 15:03:45,064 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 15:03:45,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a5da7f-55e1-4f2b-bdc1-1e98c0b1df0d/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 15:03:45,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a5da7f-55e1-4f2b-bdc1-1e98c0b1df0d/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-23 15:03:45,273 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 15:03:57,805 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 318 324) no Hoare annotation was computed. [2022-11-23 15:03:57,805 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 318 324) the Hoare annotation is: true [2022-11-23 15:03:57,806 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 119 130) the Hoare annotation is: (let ((.cse0 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse2 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (.cse5 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse6 (= ~methaneLevelCritical~0 1)) (.cse3 (not (= ~pumpRunning~0 1))) (.cse7 (not (= |old(~methaneLevelCritical~0)| 1))) (.cse4 (not (< ~waterLevel~0 3)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse1 .cse2 .cse4) (or .cse5 .cse1 .cse6 .cse7 .cse4) (or .cse1 .cse6 .cse3 .cse7 .cse4))) [2022-11-23 15:03:57,806 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 119 130) no Hoare annotation was computed. [2022-11-23 15:03:57,806 INFO L895 garLoopResultBuilder]: At program point L366(line 366) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse6 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse7 (or (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) (<= ~waterLevel~0 0))) (.cse8 (= |timeShift_processEnvironment_~tmp~3#1| 0)) (.cse9 (= ~pumpRunning~0 1)) (.cse1 (not (= 1 ~systemActive~0))) (.cse5 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (not (= ~methaneLevelCritical~0 1))) (.cse3 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse4 .cse3) (or (not (<= |old(~waterLevel~0)| 1)) .cse1 .cse5 .cse4 .cse6) (or .cse1 .cse2 .cse5 (and .cse7 .cse6 .cse8 .cse9) .cse3) (or (and .cse7 .cse8 .cse9) .cse1 .cse5 .cse4 .cse3))) [2022-11-23 15:03:57,806 INFO L899 garLoopResultBuilder]: For program point L73(lines 73 79) no Hoare annotation was computed. [2022-11-23 15:03:57,807 INFO L895 garLoopResultBuilder]: At program point L358(line 358) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse4 (not (= ~methaneLevelCritical~0 1))) (.cse7 (or (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) (<= ~waterLevel~0 0))) (.cse8 (= ~pumpRunning~0 1)) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse4 .cse3) (or .cse1 .cse2 .cse5 .cse6 (not (<= |old(~waterLevel~0)| 0))) (or .cse1 (and .cse7 .cse6 .cse8) .cse5 .cse4 .cse3) (or (and .cse7 .cse8) .cse1 .cse2 .cse5 .cse3))) [2022-11-23 15:03:57,807 INFO L899 garLoopResultBuilder]: For program point L358-1(line 358) no Hoare annotation was computed. [2022-11-23 15:03:57,807 INFO L895 garLoopResultBuilder]: At program point L69(lines 69 82) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse1 (not (= 1 ~systemActive~0))) (.cse4 (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1|)) (.cse5 (= ~waterLevel~0 |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1|)) (.cse8 (= ~pumpRunning~0 1)) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse9 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 (and (= ~pumpRunning~0 0) .cse4 .cse5 (<= |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1| 1)) .cse6 (and (<= 2 ~waterLevel~0) .cse4 .cse5 .cse7 .cse8) .cse3) (or (not (<= |old(~waterLevel~0)| 1)) .cse1 .cse6 .cse9 (and (<= ~waterLevel~0 0) .cse7)) (or .cse1 .cse9 .cse2 .cse3) (or .cse0 .cse1 .cse6 .cse7 (not (<= |old(~waterLevel~0)| 0))) (or .cse1 (and (<= ~waterLevel~0 1) .cse4 .cse5 (= |timeShift_processEnvironment_~tmp~3#1| 0) .cse8) .cse6 .cse9 .cse3))) [2022-11-23 15:03:57,808 INFO L895 garLoopResultBuilder]: At program point L69-1(lines 54 86) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse5 (= |timeShift_processEnvironment_~tmp~3#1| 0)) (.cse9 (not (= |old(~pumpRunning~0)| 1))) (.cse14 (<= ~waterLevel~0 0)) (.cse13 (not (<= |old(~waterLevel~0)| 1))) (.cse12 (not (= ~methaneLevelCritical~0 1))) (.cse15 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (not (= 1 ~systemActive~0))) (.cse8 (not (= ~methaneLevelCritical~0 0))) (.cse6 (= ~pumpRunning~0 1)) (.cse11 (= ~pumpRunning~0 0)) (.cse1 (<= ~waterLevel~0 1)) (.cse2 (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1|)) (.cse3 (= ~waterLevel~0 |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1|)) (.cse4 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse10 (not (< |old(~waterLevel~0)| 3)))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) .cse7 .cse8 .cse9 .cse10) (or .cse7 (and .cse11 .cse1 .cse2) .cse9 (and .cse0 .cse1 .cse2 .cse5 .cse6) .cse12 .cse10) (or .cse13 .cse7 .cse8 .cse9 .cse14) (or .cse13 .cse7 .cse9 .cse12 (and .cse14 .cse4)) (or .cse13 .cse15 .cse7 .cse12 .cse4) (or .cse15 .cse7 (and .cse11 .cse2 (< ~waterLevel~0 3)) .cse12 .cse10) (or .cse15 .cse7 .cse8 (and (<= 2 ~waterLevel~0) .cse2 .cse3 .cse4 .cse6) (and .cse11 .cse1 .cse2 .cse3 .cse4) .cse10))) [2022-11-23 15:03:57,808 INFO L895 garLoopResultBuilder]: At program point L61(line 61) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 1)) (.cse8 (= ~pumpRunning~0 0)) (.cse13 (<= ~waterLevel~0 1)) (.cse4 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse3 (and .cse8 .cse13 .cse4)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse12 (and .cse13 .cse4 (= |timeShift_processEnvironment_~tmp~3#1| 0) .cse5)) (.cse6 (not (< |old(~waterLevel~0)| 3))) (.cse9 (not (<= |old(~waterLevel~0)| 1))) (.cse1 (not (= 1 ~systemActive~0))) (.cse10 (not (= |old(~pumpRunning~0)| 1))) (.cse11 (<= ~waterLevel~0 0)) (.cse7 (not (= ~methaneLevelCritical~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 (and (<= 2 ~waterLevel~0) .cse4 .cse5) .cse6) (or .cse0 .cse1 .cse7 (and .cse8 (< ~waterLevel~0 3)) .cse6) (or .cse9 .cse1 .cse2 .cse10 .cse11) (or .cse1 .cse10 .cse3 .cse7 .cse12 .cse6) (or .cse9 .cse0 .cse1 .cse7 .cse4) (or .cse1 .cse2 .cse10 .cse12 .cse6) (or .cse9 .cse1 .cse10 .cse11 .cse7)))) [2022-11-23 15:03:57,811 INFO L899 garLoopResultBuilder]: For program point L61-1(line 61) no Hoare annotation was computed. [2022-11-23 15:03:57,812 INFO L895 garLoopResultBuilder]: At program point L371(line 371) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse2 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= 1 ~systemActive~0))) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse7 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 .cse2 (and .cse3 (< ~waterLevel~0 3)) .cse4) (or .cse0 .cse1 .cse5 (and .cse3 .cse6) .cse4) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 .cse2 .cse6) (or .cse1 .cse7 .cse2 .cse4) (or .cse1 .cse5 .cse7 .cse4))) [2022-11-23 15:03:57,812 INFO L895 garLoopResultBuilder]: At program point L371-1(lines 352 376) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 1)) (.cse8 (= ~pumpRunning~0 0)) (.cse13 (<= ~waterLevel~0 1)) (.cse4 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse3 (and .cse8 .cse13 .cse4)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse12 (and .cse13 .cse4 (= |timeShift_processEnvironment_~tmp~3#1| 0) .cse5)) (.cse6 (not (< |old(~waterLevel~0)| 3))) (.cse9 (not (<= |old(~waterLevel~0)| 1))) (.cse1 (not (= 1 ~systemActive~0))) (.cse10 (not (= |old(~pumpRunning~0)| 1))) (.cse11 (<= ~waterLevel~0 0)) (.cse7 (not (= ~methaneLevelCritical~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 (and (<= 2 ~waterLevel~0) .cse4 .cse5) .cse6) (or .cse0 .cse1 .cse7 (and .cse8 (< ~waterLevel~0 3)) .cse6) (or .cse9 .cse1 .cse2 .cse10 .cse11) (or .cse1 .cse10 .cse3 .cse7 .cse12 .cse6) (or .cse9 .cse0 .cse1 .cse7 .cse4) (or .cse1 .cse2 .cse10 .cse12 .cse6) (or .cse9 .cse1 .cse10 .cse11 .cse7)))) [2022-11-23 15:03:57,813 INFO L899 garLoopResultBuilder]: For program point L305-1(lines 305 311) no Hoare annotation was computed. [2022-11-23 15:03:57,813 INFO L895 garLoopResultBuilder]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse4 .cse3) (or .cse1 .cse5 .cse4 .cse3) (or .cse1 .cse2 .cse5 .cse3))) [2022-11-23 15:03:57,814 INFO L899 garLoopResultBuilder]: For program point L298-1(lines 297 316) no Hoare annotation was computed. [2022-11-23 15:03:57,814 INFO L895 garLoopResultBuilder]: At program point L360(lines 360 368) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse8 (not (= |old(~pumpRunning~0)| 1))) (.cse5 (or (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) (<= ~waterLevel~0 0))) (.cse6 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse7 (= ~pumpRunning~0 1)) (.cse3 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse4 .cse3) (or .cse1 (and .cse5 .cse6 .cse7) .cse8 .cse4 .cse3) (or .cse1 .cse2 .cse8 (and .cse5 .cse6 (= |timeShift_processEnvironment_~tmp~3#1| 0) .cse7) .cse3))) [2022-11-23 15:03:57,814 INFO L899 garLoopResultBuilder]: For program point L356(lines 356 373) no Hoare annotation was computed. [2022-11-23 15:03:57,815 INFO L895 garLoopResultBuilder]: At program point L63(lines 63 83) the Hoare annotation is: (let ((.cse11 (= ~pumpRunning~0 0)) (.cse4 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse14 (<= ~waterLevel~0 1)) (.cse12 (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1|)) (.cse13 (= ~pumpRunning~0 1))) (let ((.cse5 (and .cse14 .cse12 (= |timeShift_processEnvironment_~tmp~3#1| 0) .cse13)) (.cse6 (not (= |old(~pumpRunning~0)| 1))) (.cse10 (and (<= ~waterLevel~0 0) .cse4)) (.cse0 (not (<= |old(~waterLevel~0)| 1))) (.cse9 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse8 (and .cse11 .cse14 .cse12)) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse7 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse2 .cse5 .cse3 .cse6 .cse7) (or .cse2 .cse8 .cse5 .cse6 .cse9 .cse7) (or .cse0 .cse2 .cse6 .cse9 .cse10) (or .cse0 .cse2 .cse3 .cse6 .cse10) (or .cse0 .cse1 .cse2 .cse9 .cse4) (or .cse1 .cse2 (and .cse11 .cse12 (< ~waterLevel~0 3)) .cse9 .cse7) (or .cse1 .cse2 .cse8 .cse3 (and (<= 2 ~waterLevel~0) .cse12 .cse4 .cse13) .cse7)))) [2022-11-23 15:03:57,815 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 294 317) the Hoare annotation is: (let ((.cse9 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse8 (= 1 ~systemActive~0)) (.cse10 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse5 (and .cse9 .cse8 .cse10)) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (and .cse9 .cse8 .cse10 (= ~pumpRunning~0 1))) (.cse1 (not .cse8)) (.cse3 (not (= |old(~pumpRunning~0)| 1))) (.cse7 (not (= ~methaneLevelCritical~0 1))) (.cse4 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse1 .cse2 .cse4) (or .cse5 .cse6 .cse1 .cse7 .cse4) (or .cse0 .cse1 .cse3 .cse7 .cse4)))) [2022-11-23 15:03:57,815 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 294 317) no Hoare annotation was computed. [2022-11-23 15:03:57,815 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 590) no Hoare annotation was computed. [2022-11-23 15:03:57,815 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 189 218) no Hoare annotation was computed. [2022-11-23 15:03:57,815 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 189 218) the Hoare annotation is: true [2022-11-23 15:03:57,815 INFO L902 garLoopResultBuilder]: At program point L214(lines 189 218) the Hoare annotation is: true [2022-11-23 15:03:57,815 INFO L899 garLoopResultBuilder]: For program point L210(line 210) no Hoare annotation was computed. [2022-11-23 15:03:57,816 INFO L899 garLoopResultBuilder]: For program point L203(lines 203 207) no Hoare annotation was computed. [2022-11-23 15:03:57,816 INFO L902 garLoopResultBuilder]: At program point L203-1(lines 203 207) the Hoare annotation is: true [2022-11-23 15:03:57,816 INFO L902 garLoopResultBuilder]: At program point L199-2(lines 199 213) the Hoare annotation is: true [2022-11-23 15:03:57,816 INFO L902 garLoopResultBuilder]: At program point L195(line 195) the Hoare annotation is: true [2022-11-23 15:03:57,816 INFO L899 garLoopResultBuilder]: For program point L195-1(line 195) no Hoare annotation was computed. [2022-11-23 15:03:57,816 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 131 139) the Hoare annotation is: true [2022-11-23 15:03:57,816 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 131 139) no Hoare annotation was computed. [2022-11-23 15:03:57,817 INFO L895 garLoopResultBuilder]: At program point L539(lines 496 541) the Hoare annotation is: (let ((.cse2 (= ~methaneLevelCritical~0 1)) (.cse4 (< ~waterLevel~0 3)) (.cse6 (= ~pumpRunning~0 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse7 (= ~methaneLevelCritical~0 0)) (.cse5 (<= ~waterLevel~0 1)) (.cse1 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse1 .cse2 .cse3 .cse6) (and .cse7 .cse1 .cse3 .cse4 .cse6) (and .cse0 .cse7 .cse5 .cse1 .cse3))) [2022-11-23 15:03:57,817 INFO L899 garLoopResultBuilder]: For program point L506(lines 506 512) no Hoare annotation was computed. [2022-11-23 15:03:57,817 INFO L899 garLoopResultBuilder]: For program point L506-1(lines 506 512) no Hoare annotation was computed. [2022-11-23 15:03:57,817 INFO L895 garLoopResultBuilder]: At program point L275(lines 275 282) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (<= ~waterLevel~0 1) (= 1 ~systemActive~0)) [2022-11-23 15:03:57,817 INFO L902 garLoopResultBuilder]: At program point L275-2(lines 275 282) the Hoare annotation is: true [2022-11-23 15:03:57,817 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-23 15:03:57,817 INFO L895 garLoopResultBuilder]: At program point L532-2(lines 526 537) the Hoare annotation is: (let ((.cse2 (= ~methaneLevelCritical~0 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (< ~waterLevel~0 3)) (.cse5 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse6 .cse1 .cse3 .cse4) (and .cse6 .cse1 .cse3 .cse4 .cse5))) [2022-11-23 15:03:57,817 INFO L899 garLoopResultBuilder]: For program point L516(lines 516 522) no Hoare annotation was computed. [2022-11-23 15:03:57,818 INFO L899 garLoopResultBuilder]: For program point L516-1(lines 516 522) no Hoare annotation was computed. [2022-11-23 15:03:57,818 INFO L902 garLoopResultBuilder]: At program point L545(lines 486 549) the Hoare annotation is: true [2022-11-23 15:03:57,818 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 15:03:57,818 INFO L895 garLoopResultBuilder]: At program point L508(line 508) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (= ~methaneLevelCritical~0 1)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (< ~waterLevel~0 3)) (.cse6 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse1 .cse3 .cse4) (and (<= ~waterLevel~0 1) .cse1 .cse2 .cse3 .cse6) (and .cse5 .cse1 .cse3 .cse4 .cse6))) [2022-11-23 15:03:57,818 INFO L895 garLoopResultBuilder]: At program point L542(lines 495 543) the Hoare annotation is: false [2022-11-23 15:03:57,818 INFO L899 garLoopResultBuilder]: For program point L497(lines 496 541) no Hoare annotation was computed. [2022-11-23 15:03:57,818 INFO L895 garLoopResultBuilder]: At program point L518(line 518) the Hoare annotation is: (let ((.cse2 (= ~methaneLevelCritical~0 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (< ~waterLevel~0 3)) (.cse5 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse6 .cse1 .cse3 .cse4) (and .cse6 .cse1 .cse3 .cse4 .cse5))) [2022-11-23 15:03:57,818 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 107 118) no Hoare annotation was computed. [2022-11-23 15:03:57,819 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 107 118) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse5 (not (<= |old(~waterLevel~0)| 1))) (.cse6 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse7 (not (= ~pumpRunning~0 1))) (.cse3 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse4 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse0 .cse1 .cse6 .cse3) (or .cse0 .cse1 .cse6 (< ~waterLevel~0 3) .cse4) (or .cse5 .cse1 .cse7 .cse6 .cse3) (or .cse1 .cse2 .cse7 .cse3 .cse4))) [2022-11-23 15:03:57,819 INFO L895 garLoopResultBuilder]: At program point L345(line 345) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (<= ~waterLevel~0 1))) (.cse4 (= ~pumpRunning~0 1)) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse7 (not (= ~methaneLevelCritical~0 0))) (.cse6 (not (< ~waterLevel~0 3)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse0 .cse2 .cse6) (or .cse0 .cse7 .cse1 .cse3 .cse4) (or .cse5 .cse0 .cse7 .cse6))) [2022-11-23 15:03:57,819 INFO L899 garLoopResultBuilder]: For program point L345-1(lines 326 350) no Hoare annotation was computed. [2022-11-23 15:03:57,819 INFO L895 garLoopResultBuilder]: At program point L340(line 340) the Hoare annotation is: (let ((.cse2 (<= ~waterLevel~0 1))) (let ((.cse5 (not (= ~methaneLevelCritical~0 1))) (.cse7 (not (= |old(~pumpRunning~0)| 1))) (.cse6 (not (< ~waterLevel~0 3))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (= 1 ~systemActive~0))) (.cse9 (not (= ~methaneLevelCritical~0 0))) (.cse8 (not .cse2)) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (= |processEnvironment__wrappee__methaneQuery_~tmp~2#1| 0))) (and (or .cse0 (and .cse1 .cse2 .cse3) .cse4 .cse5 .cse6) (or .cse4 .cse7 .cse5 .cse8) (or .cse4 .cse9 .cse7 .cse8) (or .cse0 .cse4 .cse2 .cse9 .cse6) (or .cse0 .cse4 .cse9 .cse8 (and .cse1 .cse3))))) [2022-11-23 15:03:57,819 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 326 350) the Hoare annotation is: (let ((.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (= ~pumpRunning~0 0)) (.cse2 (not (= ~methaneLevelCritical~0 1))) (.cse8 (not (< ~waterLevel~0 3))) (.cse0 (not (= 1 ~systemActive~0))) (.cse7 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (<= ~waterLevel~0 1))) (.cse4 (= ~pumpRunning~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse0 .cse7 .cse8) (or .cse5 .cse6 .cse0 .cse2 .cse8) (or .cse0 .cse7 .cse1 .cse3 .cse4))) [2022-11-23 15:03:57,819 INFO L899 garLoopResultBuilder]: For program point L334(lines 334 342) no Hoare annotation was computed. [2022-11-23 15:03:57,819 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 326 350) no Hoare annotation was computed. [2022-11-23 15:03:57,820 INFO L895 garLoopResultBuilder]: At program point L330(lines 330 347) the Hoare annotation is: (let ((.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (= ~pumpRunning~0 0)) (.cse2 (not (= ~methaneLevelCritical~0 1))) (.cse8 (not (< ~waterLevel~0 3))) (.cse0 (not (= 1 ~systemActive~0))) (.cse7 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (<= ~waterLevel~0 1))) (.cse4 (= ~pumpRunning~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse0 .cse7 .cse8) (or .cse5 .cse6 .cse0 .cse2 .cse8) (or .cse0 .cse7 .cse1 .cse3 .cse4))) [2022-11-23 15:03:57,820 INFO L895 garLoopResultBuilder]: At program point L390(line 390) the Hoare annotation is: (let ((.cse8 (= 1 ~systemActive~0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0) .cse8 (= |processEnvironment__wrappee__methaneQuery_~tmp~2#1| 1))) (.cse6 (not (= ~methaneLevelCritical~0 1))) (.cse4 (not (< ~waterLevel~0 3))) (.cse1 (not .cse8)) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (= |old(~pumpRunning~0)| 1))) (.cse7 (not (<= ~waterLevel~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse5 .cse6 .cse7) (or .cse0 .cse1 .cse2 .cse6 .cse4) (or .cse1 .cse3 .cse5 .cse7)))) [2022-11-23 15:03:57,820 INFO L895 garLoopResultBuilder]: At program point L390-1(line 390) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse8 (not (= ~methaneLevelCritical~0 1))) (.cse6 (not (< ~waterLevel~0 3))) (.cse3 (= |processEnvironment__wrappee__methaneQuery_~tmp~2#1| 1)) (.cse4 (or (= ~pumpRunning~0 0) (not (< 0 ~waterLevel~0)))) (.cse5 (= |processEnvironment__wrappee__methaneQuery_activatePump_#t~ret15#1| ~methaneLevelCritical~0)) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse7 (not (= |old(~pumpRunning~0)| 1))) (.cse9 (not (<= ~waterLevel~0 1)))) (and (or .cse0 .cse1 .cse2 (and (<= 2 ~waterLevel~0) .cse3 .cse4 .cse5) .cse6) (or .cse1 .cse7 .cse8 .cse9) (or .cse0 .cse1 .cse8 .cse9) (or .cse0 .cse1 .cse8 .cse6 (and .cse3 .cse4 .cse5)) (or .cse1 .cse2 .cse7 .cse9))) [2022-11-23 15:03:57,820 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 410 420) the Hoare annotation is: true [2022-11-23 15:03:57,820 INFO L902 garLoopResultBuilder]: At program point L415(line 415) the Hoare annotation is: true [2022-11-23 15:03:57,820 INFO L899 garLoopResultBuilder]: For program point L415-1(line 415) no Hoare annotation was computed. [2022-11-23 15:03:57,820 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 410 420) no Hoare annotation was computed. [2022-11-23 15:03:57,823 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:03:57,825 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:03:57,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:03:57 BoogieIcfgContainer [2022-11-23 15:03:57,865 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:03:57,866 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:03:57,866 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:03:57,866 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:03:57,867 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:03:07" (3/4) ... [2022-11-23 15:03:57,870 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 15:03:57,876 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-23 15:03:57,876 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-23 15:03:57,876 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-23 15:03:57,877 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-23 15:03:57,877 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-23 15:03:57,877 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-23 15:03:57,877 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-11-23 15:03:57,877 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-11-23 15:03:57,884 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2022-11-23 15:03:57,885 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-23 15:03:57,885 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-23 15:03:57,886 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 15:03:57,886 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 15:03:57,913 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((pumpRunning == \old(pumpRunning) && 1 == systemActive) && waterLevel <= \old(waterLevel)) && pumpRunning == 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3)) && ((((((pumpRunning == \old(pumpRunning) && 1 == systemActive) && waterLevel <= \old(waterLevel)) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) < 3))) && ((((((pumpRunning == \old(pumpRunning) && 1 == systemActive) && waterLevel <= \old(waterLevel)) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && (((((((pumpRunning == \old(pumpRunning) && 1 == systemActive) && waterLevel <= \old(waterLevel)) && pumpRunning == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3)) [2022-11-23 15:03:57,914 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || ((pumpRunning == 0 && waterLevel <= 1) && waterLevel <= \old(waterLevel))) || ((2 <= waterLevel && waterLevel <= \old(waterLevel)) && pumpRunning == 1)) || !(\old(waterLevel) < 3)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || (pumpRunning == 0 && waterLevel < 3)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || waterLevel <= 0)) && (((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((pumpRunning == 0 && waterLevel <= 1) && waterLevel <= \old(waterLevel))) || !(methaneLevelCritical == 1)) || (((waterLevel <= 1 && waterLevel <= \old(waterLevel)) && tmp == 0) && pumpRunning == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || waterLevel <= \old(waterLevel))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || (((waterLevel <= 1 && waterLevel <= \old(waterLevel)) && tmp == 0) && pumpRunning == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || waterLevel <= 0) || !(methaneLevelCritical == 1)) [2022-11-23 15:03:57,914 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(waterLevel <= 1)) || pumpRunning == 1) && ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(waterLevel < 3))) && ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(waterLevel < 3))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(waterLevel <= 1)) || pumpRunning == 1) [2022-11-23 15:03:57,914 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) < 3)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && ((((!(1 == systemActive) || (((waterLevel + 1 <= \old(waterLevel) || waterLevel <= 0) && waterLevel <= \old(waterLevel)) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || ((((waterLevel + 1 <= \old(waterLevel) || waterLevel <= 0) && waterLevel <= \old(waterLevel)) && tmp == 0) && pumpRunning == 1)) || !(\old(waterLevel) < 3)) [2022-11-23 15:03:57,915 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || waterLevel <= \old(waterLevel)) && ((((!(1 == systemActive) || (((waterLevel <= 1 && methaneLevelCritical == tmp) && tmp == 0) && pumpRunning == 1)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3))) && (((((!(1 == systemActive) || ((pumpRunning == 0 && waterLevel <= 1) && methaneLevelCritical == tmp)) || (((waterLevel <= 1 && methaneLevelCritical == tmp) && tmp == 0) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || waterLevel <= \old(waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && methaneLevelCritical == tmp) && waterLevel < 3)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && waterLevel <= 1) && methaneLevelCritical == tmp)) || !(methaneLevelCritical == 0)) || (((2 <= waterLevel && methaneLevelCritical == tmp) && waterLevel <= \old(waterLevel)) && pumpRunning == 1)) || !(\old(waterLevel) < 3)) [2022-11-23 15:03:57,915 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((pumpRunning == \old(pumpRunning) && waterLevel <= 1) && methaneLevelCritical == tmp) && waterLevel == tmp___0) && waterLevel <= \old(waterLevel)) && tmp == 0) && pumpRunning == 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3)) && (((((!(1 == systemActive) || ((pumpRunning == 0 && waterLevel <= 1) && methaneLevelCritical == tmp)) || !(\old(pumpRunning) == 1)) || ((((pumpRunning == \old(pumpRunning) && waterLevel <= 1) && methaneLevelCritical == tmp) && tmp == 0) && pumpRunning == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || waterLevel <= 0)) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || waterLevel <= \old(waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && methaneLevelCritical == tmp) && waterLevel < 3)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || ((((2 <= waterLevel && methaneLevelCritical == tmp) && waterLevel == tmp___0) && waterLevel <= \old(waterLevel)) && pumpRunning == 1)) || ((((pumpRunning == 0 && waterLevel <= 1) && methaneLevelCritical == tmp) && waterLevel == tmp___0) && waterLevel <= \old(waterLevel))) || !(\old(waterLevel) < 3)) [2022-11-23 15:03:57,915 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || (((2 <= waterLevel && tmp == 1) && (pumpRunning == 0 || !(0 < waterLevel))) && aux-isMethaneAlarm()-aux == methaneLevelCritical)) || !(waterLevel < 3)) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(waterLevel <= 1))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(waterLevel <= 1))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(waterLevel < 3)) || ((tmp == 1 && (pumpRunning == 0 || !(0 < waterLevel))) && aux-isMethaneAlarm()-aux == methaneLevelCritical))) && (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(waterLevel <= 1)) [2022-11-23 15:03:57,916 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3)) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (((pumpRunning == 0 && methaneLevelCritical == tmp) && waterLevel == tmp___0) && tmp___0 <= 1)) || !(methaneLevelCritical == 0)) || ((((2 <= waterLevel && methaneLevelCritical == tmp) && waterLevel == tmp___0) && waterLevel <= \old(waterLevel)) && pumpRunning == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || waterLevel <= \old(waterLevel)) || !(\old(waterLevel) <= 0))) && ((((!(1 == systemActive) || ((((waterLevel <= 1 && methaneLevelCritical == tmp) && waterLevel == tmp___0) && tmp == 0) && pumpRunning == 1)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3)) [2022-11-23 15:03:57,917 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) < 3)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3)) [2022-11-23 15:03:57,941 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a5da7f-55e1-4f2b-bdc1-1e98c0b1df0d/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 15:03:57,941 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:03:57,942 INFO L158 Benchmark]: Toolchain (without parser) took 51527.86ms. Allocated memory was 186.6MB in the beginning and 469.8MB in the end (delta: 283.1MB). Free memory was 152.9MB in the beginning and 263.8MB in the end (delta: -110.9MB). Peak memory consumption was 173.0MB. Max. memory is 16.1GB. [2022-11-23 15:03:57,942 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 144.7MB. Free memory is still 87.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:03:57,942 INFO L158 Benchmark]: CACSL2BoogieTranslator took 518.37ms. Allocated memory is still 186.6MB. Free memory was 152.9MB in the beginning and 134.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 15:03:57,943 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.22ms. Allocated memory is still 186.6MB. Free memory was 134.0MB in the beginning and 131.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:03:57,943 INFO L158 Benchmark]: Boogie Preprocessor took 29.19ms. Allocated memory is still 186.6MB. Free memory was 131.9MB in the beginning and 130.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:03:57,943 INFO L158 Benchmark]: RCFGBuilder took 717.60ms. Allocated memory is still 186.6MB. Free memory was 130.6MB in the beginning and 105.4MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-23 15:03:57,944 INFO L158 Benchmark]: TraceAbstraction took 50134.62ms. Allocated memory was 186.6MB in the beginning and 469.8MB in the end (delta: 283.1MB). Free memory was 104.7MB in the beginning and 269.0MB in the end (delta: -164.4MB). Peak memory consumption was 238.0MB. Max. memory is 16.1GB. [2022-11-23 15:03:57,944 INFO L158 Benchmark]: Witness Printer took 75.06ms. Allocated memory is still 469.8MB. Free memory was 269.0MB in the beginning and 263.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 15:03:57,946 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 144.7MB. Free memory is still 87.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 518.37ms. Allocated memory is still 186.6MB. Free memory was 152.9MB in the beginning and 134.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.22ms. Allocated memory is still 186.6MB. Free memory was 134.0MB in the beginning and 131.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.19ms. Allocated memory is still 186.6MB. Free memory was 131.9MB in the beginning and 130.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 717.60ms. Allocated memory is still 186.6MB. Free memory was 130.6MB in the beginning and 105.4MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 50134.62ms. Allocated memory was 186.6MB in the beginning and 469.8MB in the end (delta: 283.1MB). Free memory was 104.7MB in the beginning and 269.0MB in the end (delta: -164.4MB). Peak memory consumption was 238.0MB. Max. memory is 16.1GB. * Witness Printer took 75.06ms. Allocated memory is still 469.8MB. Free memory was 269.0MB in the beginning and 263.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 590]: 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 9 procedures, 64 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 50.0s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 11.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 12.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2718 SdHoareTripleChecker+Valid, 4.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2684 mSDsluCounter, 2541 SdHoareTripleChecker+Invalid, 4.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1946 mSDsCounter, 1691 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5673 IncrementalHoareTripleChecker+Invalid, 7364 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1691 mSolverCounterUnsat, 595 mSDtfsCounter, 5673 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 783 GetRequests, 426 SyntacticMatches, 15 SemanticMatches, 342 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14387 ImplicationChecksByTransitivity, 19.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=604occurred in iteration=7, InterpolantAutomatonStates: 236, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 454 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 37 LocationsWithAnnotation, 2029 PreInvPairs, 2542 NumberOfFragments, 2655 HoareAnnotationTreeSize, 2029 FomulaSimplifications, 17825 FormulaSimplificationTreeSizeReduction, 2.1s HoareSimplificationTime, 37 FomulaSimplificationsInter, 97376 FormulaSimplificationTreeSizeReductionInter, 10.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 599 NumberOfCodeBlocks, 599 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 722 ConstructedInterpolants, 0 QuantifiedInterpolants, 2355 SizeOfPredicates, 23 NumberOfNonLiveVariables, 922 ConjunctsInSsa, 72 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 174/253 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: 54]: Loop Invariant Derived loop invariant: (((((((((((((((pumpRunning == \old(pumpRunning) && waterLevel <= 1) && methaneLevelCritical == tmp) && waterLevel == tmp___0) && waterLevel <= \old(waterLevel)) && tmp == 0) && pumpRunning == 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3)) && (((((!(1 == systemActive) || ((pumpRunning == 0 && waterLevel <= 1) && methaneLevelCritical == tmp)) || !(\old(pumpRunning) == 1)) || ((((pumpRunning == \old(pumpRunning) && waterLevel <= 1) && methaneLevelCritical == tmp) && tmp == 0) && pumpRunning == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || waterLevel <= 0)) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || waterLevel <= \old(waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && methaneLevelCritical == tmp) && waterLevel < 3)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || ((((2 <= waterLevel && methaneLevelCritical == tmp) && waterLevel == tmp___0) && waterLevel <= \old(waterLevel)) && pumpRunning == 1)) || ((((pumpRunning == 0 && waterLevel <= 1) && methaneLevelCritical == tmp) && waterLevel == tmp___0) && waterLevel <= \old(waterLevel))) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 330]: Loop Invariant Derived loop invariant: ((((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(waterLevel <= 1)) || pumpRunning == 1) && ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(waterLevel < 3))) && ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(waterLevel < 3))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(waterLevel <= 1)) || pumpRunning == 1) - InvariantResult [Line: 496]: Loop Invariant Derived loop invariant: ((((((pumpRunning == 0 && 1 == systemActive) && methaneLevelCritical == 1) && splverifierCounter == 0) && waterLevel < 3) || ((((waterLevel <= 1 && 1 == systemActive) && methaneLevelCritical == 1) && splverifierCounter == 0) && pumpRunning == 1)) || ((((methaneLevelCritical == 0 && 1 == systemActive) && splverifierCounter == 0) && waterLevel < 3) && pumpRunning == 1)) || ((((pumpRunning == 0 && methaneLevelCritical == 0) && waterLevel <= 1) && 1 == systemActive) && splverifierCounter == 0) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: ((((((((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || waterLevel <= \old(waterLevel)) && ((((!(1 == systemActive) || (((waterLevel <= 1 && methaneLevelCritical == tmp) && tmp == 0) && pumpRunning == 1)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3))) && (((((!(1 == systemActive) || ((pumpRunning == 0 && waterLevel <= 1) && methaneLevelCritical == tmp)) || (((waterLevel <= 1 && methaneLevelCritical == tmp) && tmp == 0) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || waterLevel <= \old(waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && methaneLevelCritical == tmp) && waterLevel < 3)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && waterLevel <= 1) && methaneLevelCritical == tmp)) || !(methaneLevelCritical == 0)) || (((2 <= waterLevel && methaneLevelCritical == tmp) && waterLevel <= \old(waterLevel)) && pumpRunning == 1)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3)) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (((pumpRunning == 0 && methaneLevelCritical == tmp) && waterLevel == tmp___0) && tmp___0 <= 1)) || !(methaneLevelCritical == 0)) || ((((2 <= waterLevel && methaneLevelCritical == tmp) && waterLevel == tmp___0) && waterLevel <= \old(waterLevel)) && pumpRunning == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || waterLevel <= \old(waterLevel)) || !(\old(waterLevel) <= 0))) && ((((!(1 == systemActive) || ((((waterLevel <= 1 && methaneLevelCritical == tmp) && waterLevel == tmp___0) && tmp == 0) && pumpRunning == 1)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 486]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 294]: Loop Invariant Derived loop invariant: (((((((((pumpRunning == \old(pumpRunning) && 1 == systemActive) && waterLevel <= \old(waterLevel)) && pumpRunning == 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3)) && ((((((pumpRunning == \old(pumpRunning) && 1 == systemActive) && waterLevel <= \old(waterLevel)) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) < 3))) && ((((((pumpRunning == \old(pumpRunning) && 1 == systemActive) && waterLevel <= \old(waterLevel)) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && (((((((pumpRunning == \old(pumpRunning) && 1 == systemActive) && waterLevel <= \old(waterLevel)) && pumpRunning == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 495]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 189]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 275]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && waterLevel <= 1) && 1 == systemActive - InvariantResult [Line: 352]: Loop Invariant Derived loop invariant: ((((((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || ((pumpRunning == 0 && waterLevel <= 1) && waterLevel <= \old(waterLevel))) || ((2 <= waterLevel && waterLevel <= \old(waterLevel)) && pumpRunning == 1)) || !(\old(waterLevel) < 3)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || (pumpRunning == 0 && waterLevel < 3)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || waterLevel <= 0)) && (((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((pumpRunning == 0 && waterLevel <= 1) && waterLevel <= \old(waterLevel))) || !(methaneLevelCritical == 1)) || (((waterLevel <= 1 && waterLevel <= \old(waterLevel)) && tmp == 0) && pumpRunning == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || waterLevel <= \old(waterLevel))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || (((waterLevel <= 1 && waterLevel <= \old(waterLevel)) && tmp == 0) && pumpRunning == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || waterLevel <= 0) || !(methaneLevelCritical == 1)) - InvariantResult [Line: 590]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) < 3)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 275]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 199]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 360]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) < 3)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && ((((!(1 == systemActive) || (((waterLevel + 1 <= \old(waterLevel) || waterLevel <= 0) && waterLevel <= \old(waterLevel)) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || ((((waterLevel + 1 <= \old(waterLevel) || waterLevel <= 0) && waterLevel <= \old(waterLevel)) && tmp == 0) && pumpRunning == 1)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 390]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || (((2 <= waterLevel && tmp == 1) && (pumpRunning == 0 || !(0 < waterLevel))) && aux-isMethaneAlarm()-aux == methaneLevelCritical)) || !(waterLevel < 3)) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(waterLevel <= 1))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(waterLevel <= 1))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(waterLevel < 3)) || ((tmp == 1 && (pumpRunning == 0 || !(0 < waterLevel))) && aux-isMethaneAlarm()-aux == methaneLevelCritical))) && (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(waterLevel <= 1)) RESULT: Ultimate proved your program to be correct! [2022-11-23 15:03:57,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a5da7f-55e1-4f2b-bdc1-1e98c0b1df0d/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