./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product47.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_6336f5e1-6753-4358-8a4d-c69982089350/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6336f5e1-6753-4358-8a4d-c69982089350/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_6336f5e1-6753-4358-8a4d-c69982089350/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6336f5e1-6753-4358-8a4d-c69982089350/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6336f5e1-6753-4358-8a4d-c69982089350/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_6336f5e1-6753-4358-8a4d-c69982089350/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 303db4082dd8b7a60cb4b5043655f09159321046818373497160cd54b8948d04 --- 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 16:03:52,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 16:03:52,173 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 16:03:52,200 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 16:03:52,203 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 16:03:52,207 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 16:03:52,210 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 16:03:52,213 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 16:03:52,217 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 16:03:52,219 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 16:03:52,221 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 16:03:52,224 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 16:03:52,224 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 16:03:52,229 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 16:03:52,231 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 16:03:52,233 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 16:03:52,235 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 16:03:52,237 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 16:03:52,239 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 16:03:52,244 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 16:03:52,247 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 16:03:52,249 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 16:03:52,251 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 16:03:52,252 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 16:03:52,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 16:03:52,265 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 16:03:52,265 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 16:03:52,266 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 16:03:52,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 16:03:52,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 16:03:52,270 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 16:03:52,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 16:03:52,273 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 16:03:52,274 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 16:03:52,276 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 16:03:52,276 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 16:03:52,277 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 16:03:52,278 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 16:03:52,278 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 16:03:52,279 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 16:03:52,280 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 16:03:52,281 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6336f5e1-6753-4358-8a4d-c69982089350/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 16:03:52,311 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 16:03:52,311 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 16:03:52,311 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 16:03:52,312 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 16:03:52,312 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 16:03:52,312 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 16:03:52,313 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 16:03:52,313 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 16:03:52,313 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 16:03:52,313 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 16:03:52,313 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 16:03:52,314 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 16:03:52,314 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 16:03:52,314 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 16:03:52,314 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 16:03:52,314 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 16:03:52,314 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 16:03:52,315 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 16:03:52,315 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 16:03:52,316 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 16:03:52,316 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 16:03:52,316 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 16:03:52,316 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 16:03:52,316 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 16:03:52,316 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 16:03:52,317 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 16:03:52,317 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 16:03:52,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 16:03:52,317 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 16:03:52,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 16:03:52,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 16:03:52,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 16:03:52,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 16:03:52,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 16:03:52,318 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 16:03:52,318 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 16:03:52,319 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 16:03:52,321 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 16:03:52,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 16:03:52,321 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 16:03:52,321 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 16:03:52,323 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_6336f5e1-6753-4358-8a4d-c69982089350/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6336f5e1-6753-4358-8a4d-c69982089350/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 303db4082dd8b7a60cb4b5043655f09159321046818373497160cd54b8948d04 [2022-11-23 16:03:52,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 16:03:52,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 16:03:52,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 16:03:52,672 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 16:03:52,672 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 16:03:52,673 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6336f5e1-6753-4358-8a4d-c69982089350/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c [2022-11-23 16:03:55,769 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 16:03:55,998 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 16:03:55,999 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6336f5e1-6753-4358-8a4d-c69982089350/sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c [2022-11-23 16:03:56,025 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6336f5e1-6753-4358-8a4d-c69982089350/bin/utaipan-Q6hlc19bkW/data/6299e9bae/af7231f8cd5d4f9581f8a805f8d79ed5/FLAG45c01a038 [2022-11-23 16:03:56,043 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6336f5e1-6753-4358-8a4d-c69982089350/bin/utaipan-Q6hlc19bkW/data/6299e9bae/af7231f8cd5d4f9581f8a805f8d79ed5 [2022-11-23 16:03:56,046 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 16:03:56,048 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 16:03:56,050 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 16:03:56,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 16:03:56,054 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 16:03:56,055 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:03:56" (1/1) ... [2022-11-23 16:03:56,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cfa3aff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:56, skipping insertion in model container [2022-11-23 16:03:56,057 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:03:56" (1/1) ... [2022-11-23 16:03:56,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 16:03:56,129 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 16:03:56,439 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_6336f5e1-6753-4358-8a4d-c69982089350/sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c[1605,1618] [2022-11-23 16:03:56,641 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 16:03:56,657 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 16:03:56,678 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_6336f5e1-6753-4358-8a4d-c69982089350/sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c[1605,1618] [2022-11-23 16:03:56,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 16:03:56,780 INFO L208 MainTranslator]: Completed translation [2022-11-23 16:03:56,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:56 WrapperNode [2022-11-23 16:03:56,782 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 16:03:56,783 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 16:03:56,784 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 16:03:56,785 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 16:03:56,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:56" (1/1) ... [2022-11-23 16:03:56,823 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:56" (1/1) ... [2022-11-23 16:03:56,855 INFO L138 Inliner]: procedures = 57, calls = 104, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 211 [2022-11-23 16:03:56,856 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 16:03:56,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 16:03:56,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 16:03:56,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 16:03:56,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:56" (1/1) ... [2022-11-23 16:03:56,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:56" (1/1) ... [2022-11-23 16:03:56,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:56" (1/1) ... [2022-11-23 16:03:56,875 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:56" (1/1) ... [2022-11-23 16:03:56,880 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:56" (1/1) ... [2022-11-23 16:03:56,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:56" (1/1) ... [2022-11-23 16:03:56,886 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:56" (1/1) ... [2022-11-23 16:03:56,912 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:56" (1/1) ... [2022-11-23 16:03:56,914 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 16:03:56,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 16:03:56,915 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 16:03:56,915 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 16:03:56,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:56" (1/1) ... [2022-11-23 16:03:56,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 16:03:56,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6336f5e1-6753-4358-8a4d-c69982089350/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:03:56,948 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6336f5e1-6753-4358-8a4d-c69982089350/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 16:03:56,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6336f5e1-6753-4358-8a4d-c69982089350/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 16:03:56,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 16:03:56,994 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-23 16:03:56,995 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-23 16:03:56,996 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-23 16:03:56,996 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-23 16:03:56,996 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-23 16:03:56,996 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-23 16:03:56,996 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-23 16:03:56,996 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-23 16:03:56,997 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-11-23 16:03:56,998 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-11-23 16:03:56,998 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2022-11-23 16:03:56,998 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2022-11-23 16:03:56,998 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-11-23 16:03:56,998 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-11-23 16:03:56,998 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-23 16:03:56,999 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-23 16:03:56,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 16:03:56,999 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-23 16:03:56,999 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-23 16:03:56,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 16:03:56,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 16:03:57,118 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 16:03:57,120 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 16:03:57,501 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 16:03:57,676 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 16:03:57,676 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 16:03:57,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:03:57 BoogieIcfgContainer [2022-11-23 16:03:57,680 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 16:03:57,682 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 16:03:57,683 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 16:03:57,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 16:03:57,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:03:56" (1/3) ... [2022-11-23 16:03:57,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6541236c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:03:57, skipping insertion in model container [2022-11-23 16:03:57,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:03:56" (2/3) ... [2022-11-23 16:03:57,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6541236c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:03:57, skipping insertion in model container [2022-11-23 16:03:57,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:03:57" (3/3) ... [2022-11-23 16:03:57,703 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product47.cil.c [2022-11-23 16:03:57,737 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 16:03:57,737 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 16:03:57,808 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 16:03:57,815 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;@45456e10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 16:03:57,816 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 16:03:57,820 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 45 states have (on average 1.4222222222222223) internal successors, (64), 54 states have internal predecessors, (64), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-23 16:03:57,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 16:03:57,831 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:03:57,833 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] [2022-11-23 16:03:57,833 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 16:03:57,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:03:57,841 INFO L85 PathProgramCache]: Analyzing trace with hash -694718840, now seen corresponding path program 1 times [2022-11-23 16:03:57,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:03:57,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473634367] [2022-11-23 16:03:57,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:03:57,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:03:58,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:03:58,124 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 16:03:58,125 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:03:58,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473634367] [2022-11-23 16:03:58,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473634367] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:03:58,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:03:58,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 16:03:58,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362880228] [2022-11-23 16:03:58,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:03:58,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 16:03:58,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:03:58,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 16:03:58,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 16:03:58,192 INFO L87 Difference]: Start difference. First operand has 72 states, 45 states have (on average 1.4222222222222223) internal successors, (64), 54 states have internal predecessors, (64), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 16:03:58,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:03:58,307 INFO L93 Difference]: Finished difference Result 142 states and 193 transitions. [2022-11-23 16:03:58,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 16:03:58,310 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2022-11-23 16:03:58,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:03:58,323 INFO L225 Difference]: With dead ends: 142 [2022-11-23 16:03:58,323 INFO L226 Difference]: Without dead ends: 67 [2022-11-23 16:03:58,328 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 16:03:58,333 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 16:03:58,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 16:03:58,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-23 16:03:58,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-11-23 16:03:58,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 42 states have (on average 1.3333333333333333) internal successors, (56), 50 states have internal predecessors, (56), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 12 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-23 16:03:58,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 87 transitions. [2022-11-23 16:03:58,406 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 87 transitions. Word has length 21 [2022-11-23 16:03:58,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:03:58,407 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 87 transitions. [2022-11-23 16:03:58,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 16:03:58,408 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 87 transitions. [2022-11-23 16:03:58,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-23 16:03:58,412 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:03:58,413 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] [2022-11-23 16:03:58,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 16:03:58,414 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 16:03:58,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:03:58,415 INFO L85 PathProgramCache]: Analyzing trace with hash -523507675, now seen corresponding path program 1 times [2022-11-23 16:03:58,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:03:58,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433720178] [2022-11-23 16:03:58,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:03:58,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:03:58,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:03:58,522 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 16:03:58,522 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:03:58,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433720178] [2022-11-23 16:03:58,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433720178] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:03:58,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:03:58,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 16:03:58,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984349288] [2022-11-23 16:03:58,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:03:58,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 16:03:58,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:03:58,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 16:03:58,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 16:03:58,526 INFO L87 Difference]: Start difference. First operand 67 states and 87 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 16:03:58,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:03:58,570 INFO L93 Difference]: Finished difference Result 106 states and 136 transitions. [2022-11-23 16:03:58,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 16:03:58,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2022-11-23 16:03:58,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:03:58,572 INFO L225 Difference]: With dead ends: 106 [2022-11-23 16:03:58,572 INFO L226 Difference]: Without dead ends: 59 [2022-11-23 16:03:58,573 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 16:03:58,574 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 14 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 16:03:58,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 107 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 16:03:58,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-23 16:03:58,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-11-23 16:03:58,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 37 states have (on average 1.3513513513513513) internal successors, (50), 45 states have internal predecessors, (50), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-23 16:03:58,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 76 transitions. [2022-11-23 16:03:58,585 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 76 transitions. Word has length 22 [2022-11-23 16:03:58,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:03:58,585 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 76 transitions. [2022-11-23 16:03:58,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 16:03:58,586 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 76 transitions. [2022-11-23 16:03:58,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-23 16:03:58,613 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:03:58,613 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] [2022-11-23 16:03:58,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 16:03:58,614 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 16:03:58,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:03:58,614 INFO L85 PathProgramCache]: Analyzing trace with hash -794396336, now seen corresponding path program 1 times [2022-11-23 16:03:58,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:03:58,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542040974] [2022-11-23 16:03:58,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:03:58,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:03:58,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:03:58,765 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 16:03:58,766 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:03:58,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542040974] [2022-11-23 16:03:58,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542040974] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:03:58,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:03:58,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 16:03:58,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326352621] [2022-11-23 16:03:58,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:03:58,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 16:03:58,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:03:58,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 16:03:58,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 16:03:58,768 INFO L87 Difference]: Start difference. First operand 59 states and 76 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 16:03:58,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:03:58,835 INFO L93 Difference]: Finished difference Result 173 states and 225 transitions. [2022-11-23 16:03:58,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 16:03:58,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2022-11-23 16:03:58,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:03:58,838 INFO L225 Difference]: With dead ends: 173 [2022-11-23 16:03:58,838 INFO L226 Difference]: Without dead ends: 116 [2022-11-23 16:03:58,839 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 16:03:58,840 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 61 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 16:03:58,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 143 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 16:03:58,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-11-23 16:03:58,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 113. [2022-11-23 16:03:58,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 70 states have (on average 1.3571428571428572) internal successors, (95), 85 states have internal predecessors, (95), 26 states have call successors, (26), 16 states have call predecessors, (26), 16 states have return successors, (26), 19 states have call predecessors, (26), 26 states have call successors, (26) [2022-11-23 16:03:58,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 147 transitions. [2022-11-23 16:03:58,859 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 147 transitions. Word has length 25 [2022-11-23 16:03:58,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:03:58,859 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 147 transitions. [2022-11-23 16:03:58,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 16:03:58,860 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 147 transitions. [2022-11-23 16:03:58,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-23 16:03:58,861 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:03:58,861 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] [2022-11-23 16:03:58,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 16:03:58,862 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 16:03:58,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:03:58,862 INFO L85 PathProgramCache]: Analyzing trace with hash -695278126, now seen corresponding path program 1 times [2022-11-23 16:03:58,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:03:58,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564048983] [2022-11-23 16:03:58,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:03:58,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:03:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:03:59,110 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 16:03:59,110 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:03:59,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564048983] [2022-11-23 16:03:59,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564048983] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:03:59,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:03:59,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 16:03:59,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335602250] [2022-11-23 16:03:59,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:03:59,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 16:03:59,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:03:59,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 16:03:59,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 16:03:59,115 INFO L87 Difference]: Start difference. First operand 113 states and 147 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 16:03:59,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:03:59,372 INFO L93 Difference]: Finished difference Result 310 states and 411 transitions. [2022-11-23 16:03:59,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 16:03:59,373 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2022-11-23 16:03:59,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:03:59,380 INFO L225 Difference]: With dead ends: 310 [2022-11-23 16:03:59,381 INFO L226 Difference]: Without dead ends: 199 [2022-11-23 16:03:59,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-23 16:03:59,389 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 39 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 16:03:59,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 300 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 16:03:59,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-11-23 16:03:59,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 190. [2022-11-23 16:03:59,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 123 states have (on average 1.2926829268292683) internal successors, (159), 138 states have internal predecessors, (159), 36 states have call successors, (36), 30 states have call predecessors, (36), 30 states have return successors, (44), 33 states have call predecessors, (44), 36 states have call successors, (44) [2022-11-23 16:03:59,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 239 transitions. [2022-11-23 16:03:59,416 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 239 transitions. Word has length 28 [2022-11-23 16:03:59,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:03:59,417 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 239 transitions. [2022-11-23 16:03:59,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 16:03:59,417 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 239 transitions. [2022-11-23 16:03:59,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-23 16:03:59,419 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:03:59,419 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] [2022-11-23 16:03:59,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 16:03:59,420 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 16:03:59,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:03:59,420 INFO L85 PathProgramCache]: Analyzing trace with hash -401666507, now seen corresponding path program 1 times [2022-11-23 16:03:59,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:03:59,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009287384] [2022-11-23 16:03:59,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:03:59,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:03:59,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:03:59,856 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 16:03:59,856 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:03:59,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009287384] [2022-11-23 16:03:59,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009287384] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:03:59,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:03:59,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 16:03:59,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95997059] [2022-11-23 16:03:59,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:03:59,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 16:03:59,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:03:59,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 16:03:59,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-23 16:03:59,860 INFO L87 Difference]: Start difference. First operand 190 states and 239 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 16:04:00,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:04:00,181 INFO L93 Difference]: Finished difference Result 553 states and 701 transitions. [2022-11-23 16:04:00,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 16:04:00,183 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 37 [2022-11-23 16:04:00,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:04:00,186 INFO L225 Difference]: With dead ends: 553 [2022-11-23 16:04:00,186 INFO L226 Difference]: Without dead ends: 365 [2022-11-23 16:04:00,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-23 16:04:00,189 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 190 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 16:04:00,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 302 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 16:04:00,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2022-11-23 16:04:00,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 351. [2022-11-23 16:04:00,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 230 states have (on average 1.2826086956521738) internal successors, (295), 255 states have internal predecessors, (295), 65 states have call successors, (65), 55 states have call predecessors, (65), 55 states have return successors, (83), 58 states have call predecessors, (83), 65 states have call successors, (83) [2022-11-23 16:04:00,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 443 transitions. [2022-11-23 16:04:00,237 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 443 transitions. Word has length 37 [2022-11-23 16:04:00,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:04:00,238 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 443 transitions. [2022-11-23 16:04:00,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 16:04:00,238 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 443 transitions. [2022-11-23 16:04:00,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-23 16:04:00,241 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:04:00,241 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:04:00,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 16:04:00,241 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 16:04:00,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:04:00,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1441650773, now seen corresponding path program 1 times [2022-11-23 16:04:00,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:04:00,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345915991] [2022-11-23 16:04:00,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:04:00,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:04:00,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:04:00,615 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 16:04:00,615 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:04:00,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345915991] [2022-11-23 16:04:00,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345915991] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:04:00,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:04:00,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 16:04:00,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468247369] [2022-11-23 16:04:00,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:04:00,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 16:04:00,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:04:00,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 16:04:00,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-23 16:04:00,619 INFO L87 Difference]: Start difference. First operand 351 states and 443 transitions. Second operand has 8 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-23 16:04:01,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:04:01,239 INFO L93 Difference]: Finished difference Result 856 states and 1106 transitions. [2022-11-23 16:04:01,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 16:04:01,240 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Word has length 40 [2022-11-23 16:04:01,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:04:01,253 INFO L225 Difference]: With dead ends: 856 [2022-11-23 16:04:01,253 INFO L226 Difference]: Without dead ends: 598 [2022-11-23 16:04:01,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2022-11-23 16:04:01,259 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 249 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 16:04:01,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 281 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 16:04:01,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2022-11-23 16:04:01,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 542. [2022-11-23 16:04:01,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 360 states have (on average 1.2805555555555554) internal successors, (461), 398 states have internal predecessors, (461), 98 states have call successors, (98), 74 states have call predecessors, (98), 83 states have return successors, (129), 95 states have call predecessors, (129), 98 states have call successors, (129) [2022-11-23 16:04:01,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 688 transitions. [2022-11-23 16:04:01,334 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 688 transitions. Word has length 40 [2022-11-23 16:04:01,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:04:01,335 INFO L495 AbstractCegarLoop]: Abstraction has 542 states and 688 transitions. [2022-11-23 16:04:01,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-23 16:04:01,335 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 688 transitions. [2022-11-23 16:04:01,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-23 16:04:01,337 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:04:01,337 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:04:01,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 16:04:01,338 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 16:04:01,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:04:01,339 INFO L85 PathProgramCache]: Analyzing trace with hash 572408402, now seen corresponding path program 1 times [2022-11-23 16:04:01,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:04:01,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994914341] [2022-11-23 16:04:01,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:04:01,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:04:01,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:04:01,411 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 16:04:01,412 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:04:01,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994914341] [2022-11-23 16:04:01,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994914341] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:04:01,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:04:01,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 16:04:01,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339252939] [2022-11-23 16:04:01,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:04:01,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 16:04:01,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:04:01,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 16:04:01,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 16:04:01,414 INFO L87 Difference]: Start difference. First operand 542 states and 688 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2022-11-23 16:04:01,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:04:01,550 INFO L93 Difference]: Finished difference Result 648 states and 822 transitions. [2022-11-23 16:04:01,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 16:04:01,550 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 61 [2022-11-23 16:04:01,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:04:01,552 INFO L225 Difference]: With dead ends: 648 [2022-11-23 16:04:01,553 INFO L226 Difference]: Without dead ends: 261 [2022-11-23 16:04:01,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 16:04:01,555 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 101 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 16:04:01,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 138 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 16:04:01,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-11-23 16:04:01,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 261. [2022-11-23 16:04:01,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 174 states have (on average 1.2298850574712643) internal successors, (214), 191 states have internal predecessors, (214), 46 states have call successors, (46), 35 states have call predecessors, (46), 40 states have return successors, (61), 46 states have call predecessors, (61), 46 states have call successors, (61) [2022-11-23 16:04:01,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 321 transitions. [2022-11-23 16:04:01,613 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 321 transitions. Word has length 61 [2022-11-23 16:04:01,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:04:01,613 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 321 transitions. [2022-11-23 16:04:01,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2022-11-23 16:04:01,614 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 321 transitions. [2022-11-23 16:04:01,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-23 16:04:01,616 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:04:01,617 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:04:01,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 16:04:01,617 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 16:04:01,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:04:01,618 INFO L85 PathProgramCache]: Analyzing trace with hash 985723873, now seen corresponding path program 1 times [2022-11-23 16:04:01,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:04:01,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904665405] [2022-11-23 16:04:01,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:04:01,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:04:01,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:04:01,998 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-23 16:04:02,001 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:04:02,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904665405] [2022-11-23 16:04:02,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904665405] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 16:04:02,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142257076] [2022-11-23 16:04:02,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:04:02,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:04:02,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6336f5e1-6753-4358-8a4d-c69982089350/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:04:02,011 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6336f5e1-6753-4358-8a4d-c69982089350/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:04:02,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6336f5e1-6753-4358-8a4d-c69982089350/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 16:04:02,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:04:02,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-23 16:04:02,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:04:02,507 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 31 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:04:02,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 16:04:02,757 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-23 16:04:02,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142257076] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 16:04:02,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1263714157] [2022-11-23 16:04:02,780 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2022-11-23 16:04:02,780 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 16:04:02,786 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 16:04:02,793 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 16:04:02,794 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 16:04:07,305 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 50 for LOIs [2022-11-23 16:04:07,316 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 31 for LOIs [2022-11-23 16:04:07,501 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 54 for LOIs [2022-11-23 16:04:07,517 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 26 for LOIs [2022-11-23 16:04:07,682 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 29 for LOIs [2022-11-23 16:04:07,685 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 16:04:12,289 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7125#(and (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| |timeShift_getWaterLevel_#res#1|) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 0)) (<= ~pumpRunning~0 1) (= ~methaneLevelCritical~0 0) (= ~head~0.offset 0) (= |timeShift_getWaterLevel_~retValue_acc~10#1| ~waterLevel~0) (= 1 ~systemActive~0) (= |old(~pumpRunning~0)| 0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| 2)) (<= 2 |old(~waterLevel~0)|) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (<= 0 ~pumpRunning~0) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= |timeShift_getWaterLevel_~retValue_acc~10#1| 2147483647) (= |timeShift_getWaterLevel_~retValue_acc~10#1| |timeShift_getWaterLevel_#res#1|) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (<= 2 |timeShift_getWaterLevel_~retValue_acc~10#1|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0) (= |old(~switchedOnBeforeTS~0)| 0))' at error location [2022-11-23 16:04:12,289 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 16:04:12,289 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 16:04:12,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 8 [2022-11-23 16:04:12,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102940680] [2022-11-23 16:04:12,290 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 16:04:12,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 16:04:12,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:04:12,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 16:04:12,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=1388, Unknown=0, NotChecked=0, Total=1560 [2022-11-23 16:04:12,292 INFO L87 Difference]: Start difference. First operand 261 states and 321 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-23 16:04:12,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:04:12,911 INFO L93 Difference]: Finished difference Result 831 states and 1046 transitions. [2022-11-23 16:04:12,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 16:04:12,912 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 70 [2022-11-23 16:04:12,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:04:12,917 INFO L225 Difference]: With dead ends: 831 [2022-11-23 16:04:12,917 INFO L226 Difference]: Without dead ends: 572 [2022-11-23 16:04:12,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 175 SyntacticMatches, 4 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 582 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=213, Invalid=1767, Unknown=0, NotChecked=0, Total=1980 [2022-11-23 16:04:12,921 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 197 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 16:04:12,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 485 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 16:04:12,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2022-11-23 16:04:12,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 413. [2022-11-23 16:04:12,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 276 states have (on average 1.2065217391304348) internal successors, (333), 303 states have internal predecessors, (333), 68 states have call successors, (68), 57 states have call predecessors, (68), 68 states have return successors, (108), 70 states have call predecessors, (108), 68 states have call successors, (108) [2022-11-23 16:04:12,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 509 transitions. [2022-11-23 16:04:12,988 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 509 transitions. Word has length 70 [2022-11-23 16:04:12,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:04:12,990 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 509 transitions. [2022-11-23 16:04:12,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-23 16:04:12,991 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 509 transitions. [2022-11-23 16:04:12,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-23 16:04:12,994 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:04:12,994 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:04:13,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6336f5e1-6753-4358-8a4d-c69982089350/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-23 16:04:13,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6336f5e1-6753-4358-8a4d-c69982089350/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:04:13,202 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 16:04:13,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:04:13,202 INFO L85 PathProgramCache]: Analyzing trace with hash 153709515, now seen corresponding path program 1 times [2022-11-23 16:04:13,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:04:13,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533525433] [2022-11-23 16:04:13,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:04:13,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:04:13,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:04:13,359 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 16:04:13,359 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:04:13,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533525433] [2022-11-23 16:04:13,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533525433] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 16:04:13,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515800243] [2022-11-23 16:04:13,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:04:13,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:04:13,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6336f5e1-6753-4358-8a4d-c69982089350/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:04:13,362 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6336f5e1-6753-4358-8a4d-c69982089350/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:04:13,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6336f5e1-6753-4358-8a4d-c69982089350/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 16:04:13,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:04:13,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-23 16:04:13,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:04:13,524 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 16:04:13,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 16:04:13,676 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 16:04:13,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515800243] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 16:04:13,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [256565535] [2022-11-23 16:04:13,684 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2022-11-23 16:04:13,684 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 16:04:13,685 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 16:04:13,685 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 16:04:13,685 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 16:04:23,429 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 141 for LOIs [2022-11-23 16:04:23,460 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 34 for LOIs [2022-11-23 16:04:23,715 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 53 for LOIs [2022-11-23 16:04:23,727 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 63 for LOIs [2022-11-23 16:04:24,220 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 48 for LOIs [2022-11-23 16:04:24,228 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 42 for LOIs [2022-11-23 16:04:24,234 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 16:04:32,045 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9463#(and (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| |timeShift_getWaterLevel_#res#1|) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 0)) (= ~methaneLevelCritical~0 0) (<= 0 (+ 2147483648 |old(~pumpRunning~0)|)) (= ~head~0.offset 0) (= |timeShift_getWaterLevel_~retValue_acc~10#1| ~waterLevel~0) (<= |old(~switchedOnBeforeTS~0)| 2147483647) (<= |old(~pumpRunning~0)| 2147483647) (= 1 ~systemActive~0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| 2)) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (<= 0 (+ |old(~switchedOnBeforeTS~0)| 2147483648)) (<= 0 (+ |timeShift_getWaterLevel_~retValue_acc~10#1| 2147483648)) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 2147483648)) (<= |timeShift_getWaterLevel_~retValue_acc~10#1| 2147483647) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 2147483647) (= |timeShift_getWaterLevel_~retValue_acc~10#1| |timeShift_getWaterLevel_#res#1|) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-23 16:04:32,046 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 16:04:32,046 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 16:04:32,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2022-11-23 16:04:32,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328769552] [2022-11-23 16:04:32,046 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 16:04:32,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 16:04:32,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:04:32,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 16:04:32,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=243, Invalid=1827, Unknown=0, NotChecked=0, Total=2070 [2022-11-23 16:04:32,049 INFO L87 Difference]: Start difference. First operand 413 states and 509 transitions. Second operand has 9 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (15), 4 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 16:04:32,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:04:32,746 INFO L93 Difference]: Finished difference Result 815 states and 1034 transitions. [2022-11-23 16:04:32,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-23 16:04:32,747 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (15), 4 states have call predecessors, (15), 2 states have call successors, (15) Word has length 73 [2022-11-23 16:04:32,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:04:32,750 INFO L225 Difference]: With dead ends: 815 [2022-11-23 16:04:32,750 INFO L226 Difference]: Without dead ends: 541 [2022-11-23 16:04:32,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 182 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1027 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=328, Invalid=2864, Unknown=0, NotChecked=0, Total=3192 [2022-11-23 16:04:32,753 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 189 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 16:04:32,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 518 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 16:04:32,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2022-11-23 16:04:32,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 499. [2022-11-23 16:04:32,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 333 states have (on average 1.1861861861861862) internal successors, (395), 367 states have internal predecessors, (395), 84 states have call successors, (84), 72 states have call predecessors, (84), 81 states have return successors, (131), 83 states have call predecessors, (131), 84 states have call successors, (131) [2022-11-23 16:04:32,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 610 transitions. [2022-11-23 16:04:32,808 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 610 transitions. Word has length 73 [2022-11-23 16:04:32,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:04:32,809 INFO L495 AbstractCegarLoop]: Abstraction has 499 states and 610 transitions. [2022-11-23 16:04:32,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (15), 4 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 16:04:32,809 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 610 transitions. [2022-11-23 16:04:32,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-23 16:04:32,812 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:04:32,812 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:04:32,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6336f5e1-6753-4358-8a4d-c69982089350/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 16:04:33,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6336f5e1-6753-4358-8a4d-c69982089350/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-23 16:04:33,018 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 16:04:33,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:04:33,019 INFO L85 PathProgramCache]: Analyzing trace with hash -780817999, now seen corresponding path program 1 times [2022-11-23 16:04:33,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:04:33,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555072505] [2022-11-23 16:04:33,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:04:33,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:04:33,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:04:33,760 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 22 proven. 37 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-23 16:04:33,760 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:04:33,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555072505] [2022-11-23 16:04:33,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555072505] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 16:04:33,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946197422] [2022-11-23 16:04:33,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:04:33,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:04:33,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6336f5e1-6753-4358-8a4d-c69982089350/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:04:33,763 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6336f5e1-6753-4358-8a4d-c69982089350/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:04:33,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6336f5e1-6753-4358-8a4d-c69982089350/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 16:04:33,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:04:33,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-23 16:04:33,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:04:34,396 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 29 proven. 56 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 16:04:34,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 16:04:35,107 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 54 proven. 5 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-23 16:04:35,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1946197422] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 16:04:35,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1520912387] [2022-11-23 16:04:35,110 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2022-11-23 16:04:35,110 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 16:04:35,111 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 16:04:35,111 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 16:04:35,111 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 16:04:38,461 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 43 for LOIs [2022-11-23 16:04:38,468 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 30 for LOIs [2022-11-23 16:04:38,846 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 41 for LOIs [2022-11-23 16:04:38,851 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 29 for LOIs [2022-11-23 16:04:38,962 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 58 for LOIs [2022-11-23 16:04:38,990 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 16:04:44,791 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '12123#(and (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| |timeShift_getWaterLevel_#res#1|) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 0)) (<= 0 |old(~pumpRunning~0)|) (= ~head~0.offset 0) (<= 1 ~systemActive~0) (= |timeShift_getWaterLevel_~retValue_acc~10#1| ~waterLevel~0) (<= |#NULL.offset| 0) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 1) (<= |old(~pumpRunning~0)| 0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| 2)) (<= 2 |old(~waterLevel~0)|) (<= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (<= 0 ~head~0.base) (<= 0 ~methaneLevelCritical~0) (<= ~head~0.base 0) (<= 0 |#NULL.offset|) (<= |timeShift_getWaterLevel_~retValue_acc~10#1| 2147483647) (<= 0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (= |timeShift_getWaterLevel_~retValue_acc~10#1| |timeShift_getWaterLevel_#res#1|) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (<= 2 |timeShift_getWaterLevel_~retValue_acc~10#1|) (<= ~systemActive~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-23 16:04:44,792 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 16:04:44,792 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 16:04:44,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 11] total 29 [2022-11-23 16:04:44,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55756431] [2022-11-23 16:04:44,792 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 16:04:44,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-23 16:04:44,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:04:44,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-23 16:04:44,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=475, Invalid=3431, Unknown=0, NotChecked=0, Total=3906 [2022-11-23 16:04:44,796 INFO L87 Difference]: Start difference. First operand 499 states and 610 transitions. Second operand has 29 states, 28 states have (on average 5.642857142857143) internal successors, (158), 29 states have internal predecessors, (158), 16 states have call successors, (38), 7 states have call predecessors, (38), 12 states have return successors, (36), 16 states have call predecessors, (36), 15 states have call successors, (36) [2022-11-23 16:04:47,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:04:47,781 INFO L93 Difference]: Finished difference Result 1114 states and 1380 transitions. [2022-11-23 16:04:47,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-11-23 16:04:47,782 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 5.642857142857143) internal successors, (158), 29 states have internal predecessors, (158), 16 states have call successors, (38), 7 states have call predecessors, (38), 12 states have return successors, (36), 16 states have call predecessors, (36), 15 states have call successors, (36) Word has length 103 [2022-11-23 16:04:47,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:04:47,783 INFO L225 Difference]: With dead ends: 1114 [2022-11-23 16:04:47,783 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 16:04:47,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 287 SyntacticMatches, 5 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4574 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=1592, Invalid=10398, Unknown=0, NotChecked=0, Total=11990 [2022-11-23 16:04:47,789 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 1054 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 781 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1055 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 2053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 781 IncrementalHoareTripleChecker+Valid, 1272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-23 16:04:47,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1055 Valid, 525 Invalid, 2053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [781 Valid, 1272 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-23 16:04:47,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 16:04:47,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 16:04:47,791 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 16:04:47,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 16:04:47,791 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 103 [2022-11-23 16:04:47,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:04:47,791 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 16:04:47,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 5.642857142857143) internal successors, (158), 29 states have internal predecessors, (158), 16 states have call successors, (38), 7 states have call predecessors, (38), 12 states have return successors, (36), 16 states have call predecessors, (36), 15 states have call successors, (36) [2022-11-23 16:04:47,792 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 16:04:47,792 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 16:04:47,794 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 16:04:47,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6336f5e1-6753-4358-8a4d-c69982089350/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 16:04:47,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6336f5e1-6753-4358-8a4d-c69982089350/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-23 16:04:47,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 16:04:54,793 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 185 192) the Hoare annotation is: (or (not (= 1 ~systemActive~0)) (not (<= ~waterLevel~0 2)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (= ~switchedOnBeforeTS~0 0) (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) [2022-11-23 16:04:54,793 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 185 192) no Hoare annotation was computed. [2022-11-23 16:04:54,793 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 101 107) no Hoare annotation was computed. [2022-11-23 16:04:54,793 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 101 107) the Hoare annotation is: true [2022-11-23 16:04:54,794 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 932 943) the Hoare annotation is: true [2022-11-23 16:04:54,794 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 932 943) no Hoare annotation was computed. [2022-11-23 16:04:54,794 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 355 384) no Hoare annotation was computed. [2022-11-23 16:04:54,794 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 355 384) the Hoare annotation is: true [2022-11-23 16:04:54,794 INFO L902 garLoopResultBuilder]: At program point L380(lines 355 384) the Hoare annotation is: true [2022-11-23 16:04:54,794 INFO L899 garLoopResultBuilder]: For program point L376(line 376) no Hoare annotation was computed. [2022-11-23 16:04:54,795 INFO L899 garLoopResultBuilder]: For program point L369(lines 369 373) no Hoare annotation was computed. [2022-11-23 16:04:54,795 INFO L902 garLoopResultBuilder]: At program point L369-1(lines 369 373) the Hoare annotation is: true [2022-11-23 16:04:54,795 INFO L902 garLoopResultBuilder]: At program point L365-2(lines 365 379) the Hoare annotation is: true [2022-11-23 16:04:54,795 INFO L902 garLoopResultBuilder]: At program point L361(line 361) the Hoare annotation is: true [2022-11-23 16:04:54,795 INFO L899 garLoopResultBuilder]: For program point L361-1(line 361) no Hoare annotation was computed. [2022-11-23 16:04:54,796 INFO L895 garLoopResultBuilder]: At program point L886(line 886) the Hoare annotation is: (let ((.cse9 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse10 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse8 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| ~waterLevel~0)) (.cse11 (let ((.cse12 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse12) .cse9) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse12))))) (let ((.cse2 (not (= 0 ~systemActive~0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= 1 ~systemActive~0))) (.cse4 (and (not (= ~switchedOnBeforeTS~0 0)) .cse1 .cse8 .cse11)) (.cse5 (and (not .cse1) .cse8 .cse11 .cse10)) (.cse6 (not (<= |old(~waterLevel~0)| 2))) (.cse7 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse3 .cse4 .cse5 .cse6 (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1) .cse2) (or .cse0 .cse6 .cse2 .cse7) (or .cse0 .cse3 (and .cse1 .cse8 .cse9 .cse10) .cse6) (or .cse3 .cse4 .cse5 .cse6 .cse7))))) [2022-11-23 16:04:54,796 INFO L899 garLoopResultBuilder]: For program point L886-1(line 886) no Hoare annotation was computed. [2022-11-23 16:04:54,796 INFO L899 garLoopResultBuilder]: For program point L81-2(lines 77 99) no Hoare annotation was computed. [2022-11-23 16:04:54,796 INFO L899 garLoopResultBuilder]: For program point L143(lines 143 151) no Hoare annotation was computed. [2022-11-23 16:04:54,796 INFO L899 garLoopResultBuilder]: For program point L139(lines 139 156) no Hoare annotation was computed. [2022-11-23 16:04:54,797 INFO L895 garLoopResultBuilder]: At program point L871(line 871) the Hoare annotation is: (let ((.cse8 (= ~pumpRunning~0 0)) (.cse13 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (let ((.cse5 (not (<= 2 |old(~waterLevel~0)|))) (.cse7 (not (= 0 ~systemActive~0))) (.cse9 (not (= |old(~waterLevel~0)| 2))) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse12 (and .cse8 .cse13)) (.cse1 (not (<= |old(~waterLevel~0)| 1))) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse10 (not (= ~switchedOnBeforeTS~0 0))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse11 (= |old(~switchedOnBeforeTS~0)| 0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse3 .cse7 .cse5) (or .cse6 .cse7 (and .cse8 (or .cse3 (= ~waterLevel~0 1)))) (or .cse6 .cse2 .cse9 (and .cse10 .cse8) .cse11) (or .cse0 .cse6 .cse12 .cse2 .cse9) (or .cse0 .cse2 (and .cse10 .cse13) .cse4 .cse11) (or .cse0 .cse1 .cse6 .cse12 .cse2) (or .cse1 .cse6 .cse2 (and .cse10 .cse8 .cse3) .cse11)))) [2022-11-23 16:04:54,797 INFO L895 garLoopResultBuilder]: At program point L871-1(line 871) the Hoare annotation is: (let ((.cse9 (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__2_#t~ret46#1|)) (.cse7 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse6 (= ~pumpRunning~0 0)) (.cse8 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (and .cse9 .cse7)) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (not (= 0 ~systemActive~0))) (.cse3 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 (and .cse6 (or .cse7 (= ~waterLevel~0 1)))) (or .cse8 .cse0 (and (not (= ~switchedOnBeforeTS~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) .cse2 (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse4 .cse0 (and .cse6 .cse9 .cse7) .cse2) (or .cse8 (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1) (or .cse4 .cse7 .cse2 .cse5 .cse3)))) [2022-11-23 16:04:54,798 INFO L899 garLoopResultBuilder]: For program point L888(lines 888 898) no Hoare annotation was computed. [2022-11-23 16:04:54,798 INFO L895 garLoopResultBuilder]: At program point L54(line 54) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= |old(~waterLevel~0)| 2))) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (not (<= |old(~waterLevel~0)| 1)) .cse0) (or .cse0 .cse1 (not (<= 2 |old(~waterLevel~0)|))) (or .cse2 .cse0 .cse1) (or .cse2 (not (= 0 ~systemActive~0))))) [2022-11-23 16:04:54,798 INFO L895 garLoopResultBuilder]: At program point L149(line 149) the Hoare annotation is: (let ((.cse1 (not (= ~pumpRunning~0 0))) (.cse2 (= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (.cse3 (< 0 |old(~waterLevel~0)|)) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse6 (not (= |old(~pumpRunning~0)| 0)))) (and (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (not (<= |old(~waterLevel~0)| 1)) .cse0 (and .cse1 (<= ~waterLevel~0 0) (or (and .cse2 .cse3) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse4)) (or .cse0 .cse5 (and .cse1 .cse2 .cse3 .cse4) (not (<= 2 |old(~waterLevel~0)|))) (or .cse6 .cse0 .cse5) (or .cse6 (not (= 0 ~systemActive~0))))) [2022-11-23 16:04:54,798 INFO L899 garLoopResultBuilder]: For program point L884(lines 884 901) no Hoare annotation was computed. [2022-11-23 16:04:54,799 INFO L895 garLoopResultBuilder]: At program point L884-1(lines 876 904) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse11 (= 1 ~systemActive~0)) (.cse13 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse16 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| 2))) (let ((.cse2 (not (= 0 ~systemActive~0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse14 (and .cse13 .cse16)) (.cse4 (not .cse11)) (.cse5 (not .cse1)) (.cse8 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse9 (not (<= |old(~waterLevel~0)| 2))) (.cse10 (not (= ~switchedOnBeforeTS~0 0))) (.cse6 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| ~waterLevel~0)) (.cse3 (= ~waterLevel~0 1)) (.cse15 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse3 .cse2) (let ((.cse7 (let ((.cse12 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse12) .cse13) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse12))))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse4 (and .cse5 .cse6 .cse7 .cse8) .cse9 (and .cse10 .cse1 .cse11 .cse6 .cse7) (= |old(~switchedOnBeforeTS~0)| 0))) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse4 (and .cse1 .cse11 .cse6 .cse13 .cse8)) (or .cse14 .cse0 .cse9 .cse2 .cse15) (or .cse0 .cse4 (not (= |old(~waterLevel~0)| 2)) .cse16) (or .cse14 .cse4 (and .cse5 (<= ~waterLevel~0 1) (<= 1 ~waterLevel~0) .cse6 .cse8) .cse9 (and .cse10 .cse1 .cse11 .cse6 .cse3) .cse15)))) [2022-11-23 16:04:54,799 INFO L895 garLoopResultBuilder]: At program point L145(line 145) the Hoare annotation is: (let ((.cse1 (not (= ~pumpRunning~0 0))) (.cse2 (= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (.cse3 (< 0 |old(~waterLevel~0)|)) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse6 (not (= |old(~pumpRunning~0)| 0)))) (and (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (not (<= |old(~waterLevel~0)| 1)) .cse0 (and .cse1 (<= ~waterLevel~0 0) (or (and .cse2 .cse3) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse4)) (or .cse0 .cse5 (and .cse1 .cse2 .cse3 .cse4) (not (<= 2 |old(~waterLevel~0)|))) (or .cse6 .cse0 .cse5) (or .cse6 (not (= 0 ~systemActive~0))))) [2022-11-23 16:04:54,800 INFO L895 garLoopResultBuilder]: At program point L141(line 141) the Hoare annotation is: (let ((.cse1 (not (= ~pumpRunning~0 0))) (.cse2 (= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (.cse3 (< 0 |old(~waterLevel~0)|)) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse6 (not (= |old(~pumpRunning~0)| 0)))) (and (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (not (<= |old(~waterLevel~0)| 1)) .cse0 (and .cse1 (<= ~waterLevel~0 0) (or (and .cse2 .cse3) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse4)) (or .cse0 .cse5 (and .cse1 .cse2 .cse3 .cse4) (not (<= 2 |old(~waterLevel~0)|))) (or .cse6 .cse0 .cse5) (or .cse6 (not (= 0 ~systemActive~0))))) [2022-11-23 16:04:54,800 INFO L899 garLoopResultBuilder]: For program point L141-1(line 141) no Hoare annotation was computed. [2022-11-23 16:04:54,800 INFO L895 garLoopResultBuilder]: At program point L154(line 154) the Hoare annotation is: (let ((.cse1 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (<= |old(~waterLevel~0)| 2))) (.cse3 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 .cse2 (not (<= 2 |old(~waterLevel~0)|))) (or (not (<= |old(~waterLevel~0)| 1)) .cse3 .cse0 .cse1) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse0 .cse2 (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse3 (not (= 0 ~systemActive~0))))) [2022-11-23 16:04:54,801 INFO L895 garLoopResultBuilder]: At program point L154-1(lines 135 159) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0))) (let ((.cse5 (not .cse2)) (.cse6 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~switchedOnBeforeTS~0 0))) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and .cse1 .cse2 (= ~waterLevel~0 1)) .cse3 .cse4 (and .cse5 (<= ~waterLevel~0 1) (<= 1 ~waterLevel~0) .cse6) (not (<= 2 |old(~waterLevel~0)|))) (or .cse7 (and (= 2 ~waterLevel~0) .cse3) .cse0 (and .cse2 .cse3 .cse6) .cse4) (let ((.cse8 (let ((.cse9 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse9) .cse3) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse9))))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (and .cse5 .cse8 .cse6) .cse0 (and .cse1 .cse2 .cse8) .cse4 (= |old(~switchedOnBeforeTS~0)| 0))) (or .cse7 (not (= 0 ~systemActive~0)))))) [2022-11-23 16:04:54,801 INFO L899 garLoopResultBuilder]: For program point L889(lines 889 895) no Hoare annotation was computed. [2022-11-23 16:04:54,801 INFO L895 garLoopResultBuilder]: At program point L88-1(lines 88 94) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0))) (let ((.cse3 (= ~waterLevel~0 1)) (.cse9 (not (= |old(~pumpRunning~0)| 0))) (.cse10 (not (= 0 ~systemActive~0))) (.cse8 (not (<= 2 |old(~waterLevel~0)|))) (.cse6 (not .cse2)) (.cse7 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~switchedOnBeforeTS~0 0))) (.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 (and .cse1 .cse2 .cse3) .cse4 .cse5 (and .cse6 (<= ~waterLevel~0 1) (<= 1 ~waterLevel~0) .cse7) .cse8) (or .cse9 (and (= 2 ~waterLevel~0) .cse4) .cse0 (and .cse2 .cse4 .cse7) .cse5) (or .cse9 .cse2 .cse10) (or .cse9 (not (= |old(~waterLevel~0)| 1)) .cse3 .cse10) (or .cse9 .cse4 .cse5 .cse10 .cse8) (let ((.cse11 (let ((.cse12 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse12) .cse4) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse12))))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (and .cse6 .cse11 .cse7) .cse0 (and .cse1 .cse2 .cse11) .cse5 (= |old(~switchedOnBeforeTS~0)| 0)))))) [2022-11-23 16:04:54,802 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 74 100) the Hoare annotation is: (let ((.cse8 (= ~pumpRunning~0 0)) (.cse13 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (let ((.cse5 (not (<= 2 |old(~waterLevel~0)|))) (.cse7 (not (= 0 ~systemActive~0))) (.cse9 (not (= |old(~waterLevel~0)| 2))) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse12 (and .cse8 .cse13)) (.cse1 (not (<= |old(~waterLevel~0)| 1))) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse10 (not (= ~switchedOnBeforeTS~0 0))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse11 (= |old(~switchedOnBeforeTS~0)| 0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse3 .cse7 .cse5) (or .cse6 .cse7 (and .cse8 (or .cse3 (= ~waterLevel~0 1)))) (or .cse6 .cse2 .cse9 (and .cse10 .cse8) .cse11) (or .cse0 .cse6 .cse12 .cse2 .cse9) (or .cse0 .cse2 (and .cse10 .cse13) .cse4 .cse11) (or .cse0 .cse1 .cse6 .cse12 .cse2) (or .cse1 .cse6 .cse2 (and .cse10 .cse8 .cse3) .cse11)))) [2022-11-23 16:04:54,802 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 74 100) no Hoare annotation was computed. [2022-11-23 16:04:54,802 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2022-11-23 16:04:54,802 INFO L895 garLoopResultBuilder]: At program point L345(lines 296 346) the Hoare annotation is: false [2022-11-23 16:04:54,803 INFO L899 garLoopResultBuilder]: For program point L333(lines 333 339) no Hoare annotation was computed. [2022-11-23 16:04:54,803 INFO L895 garLoopResultBuilder]: At program point L333-2(lines 327 340) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= ~waterLevel~0 2))) (or (and (= 2 ~waterLevel~0) .cse0 .cse1) (and .cse2 .cse1 (= 0 ~systemActive~0)) (and .cse0 .cse1 .cse3 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (and .cse2 .cse0 .cse1 .cse3))) [2022-11-23 16:04:54,803 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-23 16:04:54,803 INFO L899 garLoopResultBuilder]: For program point L317(lines 317 323) no Hoare annotation was computed. [2022-11-23 16:04:54,803 INFO L899 garLoopResultBuilder]: For program point L317-1(lines 317 323) no Hoare annotation was computed. [2022-11-23 16:04:54,804 INFO L895 garLoopResultBuilder]: At program point L441(lines 441 448) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) [2022-11-23 16:04:54,804 INFO L902 garLoopResultBuilder]: At program point L441-2(lines 441 448) the Hoare annotation is: true [2022-11-23 16:04:54,804 INFO L895 garLoopResultBuilder]: At program point L342(lines 297 344) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse2 (<= ~waterLevel~0 1)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= 2 ~waterLevel~0) .cse0 .cse1) (and .cse2 .cse0 .cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (and .cse3 .cse1 (= 0 ~systemActive~0)) (and .cse3 .cse2 .cse0 .cse1))) [2022-11-23 16:04:54,804 INFO L895 garLoopResultBuilder]: At program point L309(line 309) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse2 (<= ~waterLevel~0 1)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= 2 ~waterLevel~0) .cse0 .cse1) (and .cse2 .cse0 .cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (and .cse3 .cse1 (= 0 ~systemActive~0)) (and .cse3 .cse2 .cse0 .cse1))) [2022-11-23 16:04:54,804 INFO L899 garLoopResultBuilder]: For program point L272(lines 272 278) no Hoare annotation was computed. [2022-11-23 16:04:54,804 INFO L895 garLoopResultBuilder]: At program point L272-1(lines 272 278) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-23 16:04:54,804 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 16:04:54,805 INFO L899 garLoopResultBuilder]: For program point L298(lines 297 344) no Hoare annotation was computed. [2022-11-23 16:04:54,805 INFO L899 garLoopResultBuilder]: For program point L327(lines 327 340) no Hoare annotation was computed. [2022-11-23 16:04:54,805 INFO L895 garLoopResultBuilder]: At program point L319(line 319) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= ~waterLevel~0 2))) (or (and (= 2 ~waterLevel~0) .cse0 .cse1) (and .cse2 .cse1 (= 0 ~systemActive~0)) (and .cse0 .cse1 .cse3 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (and .cse2 .cse0 .cse1 .cse3))) [2022-11-23 16:04:54,805 INFO L902 garLoopResultBuilder]: At program point L348(lines 287 352) the Hoare annotation is: true [2022-11-23 16:04:54,805 INFO L899 garLoopResultBuilder]: For program point L307(lines 307 313) no Hoare annotation was computed. [2022-11-23 16:04:54,805 INFO L899 garLoopResultBuilder]: For program point L307-1(lines 307 313) no Hoare annotation was computed. [2022-11-23 16:04:54,806 INFO L895 garLoopResultBuilder]: At program point L274(line 274) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= 1 ~systemActive~0) .cse0) (and (<= 2 ~waterLevel~0) .cse0 (not (= 0 ~systemActive~0))))) [2022-11-23 16:04:54,806 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 920 931) no Hoare annotation was computed. [2022-11-23 16:04:54,806 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 920 931) the Hoare annotation is: (let ((.cse0 (not (<= |old(~waterLevel~0)| 1))) (.cse3 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 (not (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) .cse2) (or .cse0 .cse3 .cse1 .cse2) (or .cse3 .cse2 (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) (or .cse1 (not (= |old(~waterLevel~0)| 2)) .cse2))) [2022-11-23 16:04:54,806 INFO L895 garLoopResultBuilder]: At program point L128(line 128) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse2) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 .cse2))) [2022-11-23 16:04:54,806 INFO L899 garLoopResultBuilder]: For program point L128-1(lines 109 133) no Hoare annotation was computed. [2022-11-23 16:04:54,807 INFO L895 garLoopResultBuilder]: At program point L123(line 123) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 (= ~switchedOnBeforeTS~0 0) .cse2) (or .cse0 (and (or (= |processEnvironment__wrappee__methaneQuery_~tmp~0#1| 0) (<= 2 ~waterLevel~0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) .cse1 .cse2))) [2022-11-23 16:04:54,807 INFO L899 garLoopResultBuilder]: For program point L117(lines 117 125) no Hoare annotation was computed. [2022-11-23 16:04:54,807 INFO L895 garLoopResultBuilder]: At program point L113(lines 113 130) the Hoare annotation is: (or (not (= 1 ~systemActive~0)) (not (<= ~waterLevel~0 2)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) [2022-11-23 16:04:54,807 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 109 133) the Hoare annotation is: (or (not (= 1 ~systemActive~0)) (not (<= ~waterLevel~0 2)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) [2022-11-23 16:04:54,807 INFO L895 garLoopResultBuilder]: At program point L173(line 173) the Hoare annotation is: (or (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 0) (= 2 ~waterLevel~0) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 2)) (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) [2022-11-23 16:04:54,808 INFO L895 garLoopResultBuilder]: At program point L173-1(line 173) the Hoare annotation is: (or (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 0) (= 2 ~waterLevel~0) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 2)) (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) [2022-11-23 16:04:54,808 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 109 133) no Hoare annotation was computed. [2022-11-23 16:04:54,808 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 204 212) no Hoare annotation was computed. [2022-11-23 16:04:54,808 INFO L902 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 204 212) the Hoare annotation is: true [2022-11-23 16:04:54,808 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 193 203) the Hoare annotation is: true [2022-11-23 16:04:54,809 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 193 203) no Hoare annotation was computed. [2022-11-23 16:04:54,812 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:04:54,815 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 16:04:54,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 04:04:54 BoogieIcfgContainer [2022-11-23 16:04:54,864 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 16:04:54,865 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 16:04:54,865 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 16:04:54,865 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 16:04:54,866 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:03:57" (3/4) ... [2022-11-23 16:04:54,869 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 16:04:54,875 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-23 16:04:54,876 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-23 16:04:54,876 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-23 16:04:54,876 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-23 16:04:54,876 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-23 16:04:54,877 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-23 16:04:54,877 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-11-23 16:04:54,877 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2022-11-23 16:04:54,877 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-11-23 16:04:54,893 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2022-11-23 16:04:54,893 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-23 16:04:54,894 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-23 16:04:54,894 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 16:04:54,895 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 16:04:54,925 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(1 == systemActive) || (pumpRunning == aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(0 == systemActive)) || (pumpRunning == 0 && (\old(waterLevel) == waterLevel || waterLevel == 1)))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) || \old(switchedOnBeforeTS) == 0)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && pumpRunning == aux-isPumpRunning()-aux) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2))) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) || (pumpRunning == aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel))) && ((((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel))) [2022-11-23 16:04:54,927 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(1 == systemActive) || ((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel == 1)) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || (((!(pumpRunning == 0) && waterLevel <= 1) && 1 <= waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(2 <= \old(waterLevel))) && ((((!(\old(pumpRunning) == 0) || (2 == waterLevel && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2))) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || ((!(pumpRunning == 0) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && pumpRunning == switchedOnBeforeTS)) || !(1 == systemActive)) || ((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))))) || !(\old(waterLevel) <= 2)) || \old(switchedOnBeforeTS) == 0) [2022-11-23 16:04:54,928 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) || !(0 == systemActive))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || (((!(pumpRunning == 0) && tmp == waterLevel) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) || ((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && 1 == systemActive) && tmp == waterLevel) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))))) || \old(switchedOnBeforeTS) == 0)) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || ((((pumpRunning == 0 && 1 == systemActive) && tmp == waterLevel) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS))) && (((((\old(waterLevel) == waterLevel && tmp == 2) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) == 2)) || tmp == 2)) && ((((((\old(waterLevel) == waterLevel && tmp == 2) || !(1 == systemActive)) || ((((!(pumpRunning == 0) && waterLevel <= 1) && 1 <= waterLevel) && tmp == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) || ((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && 1 == systemActive) && tmp == waterLevel) && waterLevel == 1)) || !(2 <= \old(waterLevel))) [2022-11-23 16:04:54,929 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) && ((!(1 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2022-11-23 16:04:54,929 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(1 == systemActive) || ((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel == 1)) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || (((!(pumpRunning == 0) && waterLevel <= 1) && 1 <= waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(2 <= \old(waterLevel))) && ((((!(\old(pumpRunning) == 0) || (2 == waterLevel && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || ((!(pumpRunning == 0) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && pumpRunning == switchedOnBeforeTS)) || !(1 == systemActive)) || ((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))))) || !(\old(waterLevel) <= 2)) || \old(switchedOnBeforeTS) == 0)) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2022-11-23 16:04:54,929 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || !(waterLevel <= 2)) || pumpRunning == switchedOnBeforeTS) || !(switchedOnBeforeTS == \old(pumpRunning)) [2022-11-23 16:04:54,930 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || ((pumpRunning == 0 && 2 == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(waterLevel <= 2)) || !(switchedOnBeforeTS == \old(pumpRunning)) [2022-11-23 16:04:54,989 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6336f5e1-6753-4358-8a4d-c69982089350/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 16:04:54,993 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 16:04:54,994 INFO L158 Benchmark]: Toolchain (without parser) took 58946.52ms. Allocated memory was 146.8MB in the beginning and 702.5MB in the end (delta: 555.7MB). Free memory was 101.7MB in the beginning and 394.4MB in the end (delta: -292.7MB). Peak memory consumption was 261.8MB. Max. memory is 16.1GB. [2022-11-23 16:04:54,996 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 107.0MB. Free memory is still 75.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 16:04:54,996 INFO L158 Benchmark]: CACSL2BoogieTranslator took 732.41ms. Allocated memory is still 146.8MB. Free memory was 100.9MB in the beginning and 104.9MB in the end (delta: -4.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-23 16:04:54,997 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.26ms. Allocated memory is still 146.8MB. Free memory was 104.9MB in the beginning and 102.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 16:04:54,997 INFO L158 Benchmark]: Boogie Preprocessor took 57.32ms. Allocated memory is still 146.8MB. Free memory was 102.8MB in the beginning and 100.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 16:04:54,998 INFO L158 Benchmark]: RCFGBuilder took 765.08ms. Allocated memory is still 146.8MB. Free memory was 100.7MB in the beginning and 75.6MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-23 16:04:54,999 INFO L158 Benchmark]: TraceAbstraction took 57182.05ms. Allocated memory was 146.8MB in the beginning and 702.5MB in the end (delta: 555.7MB). Free memory was 74.7MB in the beginning and 400.7MB in the end (delta: -326.0MB). Peak memory consumption was 386.9MB. Max. memory is 16.1GB. [2022-11-23 16:04:55,000 INFO L158 Benchmark]: Witness Printer took 128.40ms. Allocated memory is still 702.5MB. Free memory was 400.7MB in the beginning and 394.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-23 16:04:55,002 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 107.0MB. Free memory is still 75.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 732.41ms. Allocated memory is still 146.8MB. Free memory was 100.9MB in the beginning and 104.9MB in the end (delta: -4.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.26ms. Allocated memory is still 146.8MB. Free memory was 104.9MB in the beginning and 102.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.32ms. Allocated memory is still 146.8MB. Free memory was 102.8MB in the beginning and 100.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 765.08ms. Allocated memory is still 146.8MB. Free memory was 100.7MB in the beginning and 75.6MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 57182.05ms. Allocated memory was 146.8MB in the beginning and 702.5MB in the end (delta: 555.7MB). Free memory was 74.7MB in the beginning and 400.7MB in the end (delta: -326.0MB). Peak memory consumption was 386.9MB. Max. memory is 16.1GB. * Witness Printer took 128.40ms. Allocated memory is still 702.5MB. Free memory was 400.7MB in the beginning and 394.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 54]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 57.0s, OverallIterations: 10, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 6.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2112 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2094 mSDsluCounter, 2875 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1975 mSDsCounter, 1131 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2802 IncrementalHoareTripleChecker+Invalid, 3933 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1131 mSolverCounterUnsat, 900 mSDtfsCounter, 2802 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 910 GetRequests, 663 SyntacticMatches, 10 SemanticMatches, 237 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6221 ImplicationChecksByTransitivity, 20.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=542occurred in iteration=6, InterpolantAutomatonStates: 121, 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, 283 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 40 LocationsWithAnnotation, 1629 PreInvPairs, 1884 NumberOfFragments, 2155 HoareAnnotationTreeSize, 1629 FomulaSimplifications, 6071 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 40 FomulaSimplificationsInter, 26154 FormulaSimplificationTreeSizeReductionInter, 6.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 726 NumberOfCodeBlocks, 726 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 956 ConstructedInterpolants, 0 QuantifiedInterpolants, 3033 SizeOfPredicates, 29 NumberOfNonLiveVariables, 1107 ConjunctsInSsa, 69 ConjunctsInUnsatCore, 16 InterpolantComputations, 7 PerfectInterpolantSequences, 369/473 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: 365]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 297]: Loop Invariant Derived loop invariant: ((((2 == waterLevel && 1 == systemActive) && splverifierCounter == 0) || (((waterLevel <= 1 && 1 == systemActive) && splverifierCounter == 0) && pumpRunning == switchedOnBeforeTS)) || ((pumpRunning == 0 && splverifierCounter == 0) && 0 == systemActive)) || (((pumpRunning == 0 && waterLevel <= 1) && 1 == systemActive) && splverifierCounter == 0) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) && ((!(1 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 272]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 296]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 441]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && 1 == systemActive) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS - InvariantResult [Line: 871]: Loop Invariant Derived loop invariant: (((((((!(1 == systemActive) || (pumpRunning == aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(0 == systemActive)) || (pumpRunning == 0 && (\old(waterLevel) == waterLevel || waterLevel == 1)))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) || \old(switchedOnBeforeTS) == 0)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && pumpRunning == aux-isPumpRunning()-aux) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2))) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) || (pumpRunning == aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel))) && ((((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || !(waterLevel <= 2)) || pumpRunning == switchedOnBeforeTS) || !(switchedOnBeforeTS == \old(pumpRunning)) - InvariantResult [Line: 441]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 135]: Loop Invariant Derived loop invariant: (((((((!(1 == systemActive) || ((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel == 1)) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || (((!(pumpRunning == 0) && waterLevel <= 1) && 1 <= waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(2 <= \old(waterLevel))) && ((((!(\old(pumpRunning) == 0) || (2 == waterLevel && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || ((!(pumpRunning == 0) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && pumpRunning == switchedOnBeforeTS)) || !(1 == systemActive)) || ((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))))) || !(\old(waterLevel) <= 2)) || \old(switchedOnBeforeTS) == 0)) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 287]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 355]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 876]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) || !(0 == systemActive))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || (((!(pumpRunning == 0) && tmp == waterLevel) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) || ((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && 1 == systemActive) && tmp == waterLevel) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))))) || \old(switchedOnBeforeTS) == 0)) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || ((((pumpRunning == 0 && 1 == systemActive) && tmp == waterLevel) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS))) && (((((\old(waterLevel) == waterLevel && tmp == 2) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) == 2)) || tmp == 2)) && ((((((\old(waterLevel) == waterLevel && tmp == 2) || !(1 == systemActive)) || ((((!(pumpRunning == 0) && waterLevel <= 1) && 1 <= waterLevel) && tmp == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) || ((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && 1 == systemActive) && tmp == waterLevel) && waterLevel == 1)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 88]: Loop Invariant Derived loop invariant: (((((((((!(1 == systemActive) || ((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel == 1)) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || (((!(pumpRunning == 0) && waterLevel <= 1) && 1 <= waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(2 <= \old(waterLevel))) && ((((!(\old(pumpRunning) == 0) || (2 == waterLevel && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2))) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || ((!(pumpRunning == 0) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && pumpRunning == switchedOnBeforeTS)) || !(1 == systemActive)) || ((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))))) || !(\old(waterLevel) <= 2)) || \old(switchedOnBeforeTS) == 0) - InvariantResult [Line: 173]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || ((pumpRunning == 0 && 2 == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(waterLevel <= 2)) || !(switchedOnBeforeTS == \old(pumpRunning)) RESULT: Ultimate proved your program to be correct! [2022-11-23 16:04:55,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6336f5e1-6753-4358-8a4d-c69982089350/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