./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b 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_bbfa7824-e112-4ad1-a139-1014f0728e22/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfa7824-e112-4ad1-a139-1014f0728e22/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfa7824-e112-4ad1-a139-1014f0728e22/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfa7824-e112-4ad1-a139-1014f0728e22/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfa7824-e112-4ad1-a139-1014f0728e22/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfa7824-e112-4ad1-a139-1014f0728e22/bin/utaipan-6cKwYrpEi9 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4c4adbf609ddd472cb6a462753c6f5cc9af64c97af02da4060f4102700285790 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 20:50:26,836 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:50:26,838 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:50:26,857 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:50:26,858 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:50:26,859 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:50:26,860 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:50:26,862 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:50:26,864 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:50:26,865 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:50:26,866 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:50:26,867 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:50:26,868 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:50:26,869 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:50:26,870 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:50:26,871 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:50:26,872 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:50:26,873 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:50:26,875 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:50:26,877 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:50:26,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:50:26,891 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:50:26,892 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:50:26,893 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:50:26,897 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:50:26,898 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:50:26,898 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:50:26,899 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:50:26,900 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:50:26,901 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:50:26,901 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:50:26,902 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:50:26,903 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:50:26,904 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:50:26,905 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:50:26,905 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:50:26,906 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:50:26,906 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:50:26,907 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:50:26,908 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:50:26,908 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:50:26,909 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfa7824-e112-4ad1-a139-1014f0728e22/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-20 20:50:26,933 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:50:26,934 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:50:26,934 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:50:26,935 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:50:26,935 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:50:26,936 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:50:26,936 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:50:26,937 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:50:26,937 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:50:26,937 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 20:50:26,938 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:50:26,938 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:50:26,938 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 20:50:26,939 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 20:50:26,939 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:50:26,939 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 20:50:26,940 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 20:50:26,940 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 20:50:26,941 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:50:26,941 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 20:50:26,942 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 20:50:26,942 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 20:50:26,942 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:50:26,943 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:50:26,943 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:50:26,943 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:50:26,944 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 20:50:26,944 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:50:26,944 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:50:26,945 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:50:26,945 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:50:26,945 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:50:26,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:50:26,946 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:50:26,946 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 20:50:26,947 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:50:26,947 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:50:26,948 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 20:50:26,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 20:50:26,948 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:50:26,949 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:50:26,949 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_bbfa7824-e112-4ad1-a139-1014f0728e22/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfa7824-e112-4ad1-a139-1014f0728e22/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c4adbf609ddd472cb6a462753c6f5cc9af64c97af02da4060f4102700285790 [2022-11-20 20:50:27,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:50:27,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:50:27,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:50:27,325 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:50:27,326 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:50:27,327 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfa7824-e112-4ad1-a139-1014f0728e22/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c [2022-11-20 20:50:30,503 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:50:30,824 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:50:30,824 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfa7824-e112-4ad1-a139-1014f0728e22/sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c [2022-11-20 20:50:30,845 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfa7824-e112-4ad1-a139-1014f0728e22/bin/utaipan-6cKwYrpEi9/data/7e25162a7/66664203c71d4ee6a7d9d0f024b2a030/FLAGafd1a06d5 [2022-11-20 20:50:30,872 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfa7824-e112-4ad1-a139-1014f0728e22/bin/utaipan-6cKwYrpEi9/data/7e25162a7/66664203c71d4ee6a7d9d0f024b2a030 [2022-11-20 20:50:30,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:50:30,879 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:50:30,883 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:50:30,883 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:50:30,887 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:50:30,888 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:50:30" (1/1) ... [2022-11-20 20:50:30,889 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@393fe2c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:50:30, skipping insertion in model container [2022-11-20 20:50:30,891 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:50:30" (1/1) ... [2022-11-20 20:50:30,898 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:50:30,959 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:50:31,245 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfa7824-e112-4ad1-a139-1014f0728e22/sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c[8617,8630] [2022-11-20 20:50:31,345 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:50:31,363 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 20:50:31,423 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_bbfa7824-e112-4ad1-a139-1014f0728e22/sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c[8617,8630] [2022-11-20 20:50:31,465 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:50:31,505 INFO L208 MainTranslator]: Completed translation [2022-11-20 20:50:31,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:50:31 WrapperNode [2022-11-20 20:50:31,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 20:50:31,507 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 20:50:31,507 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 20:50:31,507 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 20:50:31,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:50:31" (1/1) ... [2022-11-20 20:50:31,528 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:50:31" (1/1) ... [2022-11-20 20:50:31,557 INFO L138 Inliner]: procedures = 54, calls = 100, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 194 [2022-11-20 20:50:31,557 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 20:50:31,558 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 20:50:31,558 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 20:50:31,558 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 20:50:31,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:50:31" (1/1) ... [2022-11-20 20:50:31,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:50:31" (1/1) ... [2022-11-20 20:50:31,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:50:31" (1/1) ... [2022-11-20 20:50:31,592 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:50:31" (1/1) ... [2022-11-20 20:50:31,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:50:31" (1/1) ... [2022-11-20 20:50:31,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:50:31" (1/1) ... [2022-11-20 20:50:31,619 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:50:31" (1/1) ... [2022-11-20 20:50:31,621 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:50:31" (1/1) ... [2022-11-20 20:50:31,623 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 20:50:31,624 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 20:50:31,624 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 20:50:31,624 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 20:50:31,625 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:50:31" (1/1) ... [2022-11-20 20:50:31,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:50:31,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfa7824-e112-4ad1-a139-1014f0728e22/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:50:31,663 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfa7824-e112-4ad1-a139-1014f0728e22/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 20:50:31,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfa7824-e112-4ad1-a139-1014f0728e22/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 20:50:31,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 20:50:31,704 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-20 20:50:31,704 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-20 20:50:31,704 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-20 20:50:31,704 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-20 20:50:31,704 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-20 20:50:31,704 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-20 20:50:31,705 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-20 20:50:31,705 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-20 20:50:31,705 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-20 20:50:31,705 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-20 20:50:31,705 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-11-20 20:50:31,705 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-11-20 20:50:31,706 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-11-20 20:50:31,706 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-11-20 20:50:31,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 20:50:31,706 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-20 20:50:31,706 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-20 20:50:31,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 20:50:31,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 20:50:31,790 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 20:50:31,793 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 20:50:32,141 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 20:50:32,327 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 20:50:32,327 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 20:50:32,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:50:32 BoogieIcfgContainer [2022-11-20 20:50:32,330 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 20:50:32,334 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 20:50:32,335 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 20:50:32,338 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 20:50:32,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:50:30" (1/3) ... [2022-11-20 20:50:32,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a38171d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:50:32, skipping insertion in model container [2022-11-20 20:50:32,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:50:31" (2/3) ... [2022-11-20 20:50:32,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a38171d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:50:32, skipping insertion in model container [2022-11-20 20:50:32,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:50:32" (3/3) ... [2022-11-20 20:50:32,345 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product45.cil.c [2022-11-20 20:50:32,364 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 20:50:32,365 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 20:50:32,432 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 20:50:32,440 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;@691d08a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 20:50:32,441 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 20:50:32,445 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 40 states have (on average 1.4) internal successors, (56), 48 states have internal predecessors, (56), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-20 20:50:32,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 20:50:32,457 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:50:32,458 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:50:32,459 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:50:32,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:50:32,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1548548902, now seen corresponding path program 1 times [2022-11-20 20:50:32,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:50:32,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143666015] [2022-11-20 20:50:32,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:50:32,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:50:32,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:50:32,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:50:32,723 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:50:32,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143666015] [2022-11-20 20:50:32,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143666015] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:50:32,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:50:32,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 20:50:32,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672165924] [2022-11-20 20:50:32,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:50:32,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 20:50:32,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:50:32,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 20:50:32,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 20:50:32,779 INFO L87 Difference]: Start difference. First operand has 64 states, 40 states have (on average 1.4) internal successors, (56), 48 states have internal predecessors, (56), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 20:50:32,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:50:32,922 INFO L93 Difference]: Finished difference Result 126 states and 169 transitions. [2022-11-20 20:50:32,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 20:50:32,926 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-20 20:50:32,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:50:32,942 INFO L225 Difference]: With dead ends: 126 [2022-11-20 20:50:32,942 INFO L226 Difference]: Without dead ends: 59 [2022-11-20 20:50:32,948 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 [2022-11-20 20:50:32,953 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:50:32,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:50:32,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-20 20:50:33,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-11-20 20:50:33,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 44 states have internal predecessors, (48), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-20 20:50:33,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 75 transitions. [2022-11-20 20:50:33,024 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 75 transitions. Word has length 17 [2022-11-20 20:50:33,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:50:33,025 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 75 transitions. [2022-11-20 20:50:33,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 20:50:33,026 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 75 transitions. [2022-11-20 20:50:33,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-20 20:50:33,030 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:50:33,030 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:50:33,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 20:50:33,031 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:50:33,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:50:33,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1977184354, now seen corresponding path program 1 times [2022-11-20 20:50:33,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:50:33,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012811281] [2022-11-20 20:50:33,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:50:33,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:50:33,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:50:33,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:50:33,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:50:33,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012811281] [2022-11-20 20:50:33,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012811281] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:50:33,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:50:33,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:50:33,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188230960] [2022-11-20 20:50:33,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:50:33,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:50:33,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:50:33,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:50:33,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:50:33,218 INFO L87 Difference]: Start difference. First operand 59 states and 75 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 20:50:33,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:50:33,288 INFO L93 Difference]: Finished difference Result 95 states and 121 transitions. [2022-11-20 20:50:33,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:50:33,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-11-20 20:50:33,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:50:33,294 INFO L225 Difference]: With dead ends: 95 [2022-11-20 20:50:33,294 INFO L226 Difference]: Without dead ends: 51 [2022-11-20 20:50:33,298 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 [2022-11-20 20:50:33,300 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 7 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:50:33,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 89 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:50:33,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-20 20:50:33,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-11-20 20:50:33,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 32 states have (on average 1.3125) internal successors, (42), 39 states have internal predecessors, (42), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-20 20:50:33,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 64 transitions. [2022-11-20 20:50:33,316 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 64 transitions. Word has length 18 [2022-11-20 20:50:33,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:50:33,316 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 64 transitions. [2022-11-20 20:50:33,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 20:50:33,317 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 64 transitions. [2022-11-20 20:50:33,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-20 20:50:33,319 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:50:33,319 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:50:33,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 20:50:33,319 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:50:33,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:50:33,329 INFO L85 PathProgramCache]: Analyzing trace with hash -570975999, now seen corresponding path program 1 times [2022-11-20 20:50:33,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:50:33,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367373175] [2022-11-20 20:50:33,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:50:33,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:50:33,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:50:33,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:50:33,402 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:50:33,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367373175] [2022-11-20 20:50:33,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367373175] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:50:33,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:50:33,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:50:33,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594462970] [2022-11-20 20:50:33,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:50:33,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:50:33,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:50:33,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:50:33,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:50:33,405 INFO L87 Difference]: Start difference. First operand 51 states and 64 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 20:50:33,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:50:33,464 INFO L93 Difference]: Finished difference Result 100 states and 127 transitions. [2022-11-20 20:50:33,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:50:33,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-11-20 20:50:33,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:50:33,467 INFO L225 Difference]: With dead ends: 100 [2022-11-20 20:50:33,467 INFO L226 Difference]: Without dead ends: 51 [2022-11-20 20:50:33,471 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 [2022-11-20 20:50:33,472 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 53 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:50:33,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 47 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:50:33,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-20 20:50:33,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-11-20 20:50:33,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 32 states have (on average 1.28125) internal successors, (41), 39 states have internal predecessors, (41), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-20 20:50:33,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 63 transitions. [2022-11-20 20:50:33,481 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 63 transitions. Word has length 20 [2022-11-20 20:50:33,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:50:33,481 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 63 transitions. [2022-11-20 20:50:33,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 20:50:33,482 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 63 transitions. [2022-11-20 20:50:33,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-20 20:50:33,486 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:50:33,486 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:50:33,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 20:50:33,486 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:50:33,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:50:33,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1305235151, now seen corresponding path program 1 times [2022-11-20 20:50:33,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:50:33,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054797391] [2022-11-20 20:50:33,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:50:33,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:50:33,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:50:33,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:50:33,663 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:50:33,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054797391] [2022-11-20 20:50:33,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054797391] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:50:33,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:50:33,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 20:50:33,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214120138] [2022-11-20 20:50:33,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:50:33,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 20:50:33,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:50:33,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 20:50:33,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:50:33,666 INFO L87 Difference]: Start difference. First operand 51 states and 63 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 20:50:33,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:50:33,945 INFO L93 Difference]: Finished difference Result 165 states and 204 transitions. [2022-11-20 20:50:33,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 20:50:33,946 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 30 [2022-11-20 20:50:33,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:50:33,947 INFO L225 Difference]: With dead ends: 165 [2022-11-20 20:50:33,947 INFO L226 Difference]: Without dead ends: 116 [2022-11-20 20:50:33,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-20 20:50:33,949 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 116 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 20:50:33,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 151 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 20:50:33,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-11-20 20:50:33,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 110. [2022-11-20 20:50:33,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 73 states have (on average 1.2602739726027397) internal successors, (92), 80 states have internal predecessors, (92), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2022-11-20 20:50:33,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 133 transitions. [2022-11-20 20:50:33,972 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 133 transitions. Word has length 30 [2022-11-20 20:50:33,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:50:33,973 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 133 transitions. [2022-11-20 20:50:33,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 20:50:33,973 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 133 transitions. [2022-11-20 20:50:33,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-20 20:50:33,976 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:50:33,976 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:50:33,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 20:50:33,976 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:50:33,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:50:33,977 INFO L85 PathProgramCache]: Analyzing trace with hash -160661025, now seen corresponding path program 1 times [2022-11-20 20:50:33,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:50:33,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206957104] [2022-11-20 20:50:33,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:50:33,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:50:34,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:50:34,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:50:34,234 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:50:34,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206957104] [2022-11-20 20:50:34,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206957104] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:50:34,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:50:34,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 20:50:34,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935652024] [2022-11-20 20:50:34,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:50:34,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 20:50:34,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:50:34,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 20:50:34,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:50:34,237 INFO L87 Difference]: Start difference. First operand 110 states and 133 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 20:50:34,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:50:34,403 INFO L93 Difference]: Finished difference Result 326 states and 402 transitions. [2022-11-20 20:50:34,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 20:50:34,404 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2022-11-20 20:50:34,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:50:34,406 INFO L225 Difference]: With dead ends: 326 [2022-11-20 20:50:34,407 INFO L226 Difference]: Without dead ends: 218 [2022-11-20 20:50:34,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:50:34,408 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 97 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:50:34,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 202 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:50:34,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-11-20 20:50:34,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 206. [2022-11-20 20:50:34,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 137 states have (on average 1.218978102189781) internal successors, (167), 148 states have internal predecessors, (167), 34 states have call successors, (34), 28 states have call predecessors, (34), 34 states have return successors, (44), 36 states have call predecessors, (44), 34 states have call successors, (44) [2022-11-20 20:50:34,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 245 transitions. [2022-11-20 20:50:34,516 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 245 transitions. Word has length 31 [2022-11-20 20:50:34,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:50:34,516 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 245 transitions. [2022-11-20 20:50:34,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 20:50:34,517 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 245 transitions. [2022-11-20 20:50:34,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-20 20:50:34,518 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:50:34,518 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:50:34,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 20:50:34,519 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:50:34,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:50:34,519 INFO L85 PathProgramCache]: Analyzing trace with hash -591971774, now seen corresponding path program 1 times [2022-11-20 20:50:34,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:50:34,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129036871] [2022-11-20 20:50:34,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:50:34,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:50:34,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:50:34,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:50:34,878 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:50:34,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129036871] [2022-11-20 20:50:34,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129036871] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:50:34,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:50:34,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 20:50:34,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111615893] [2022-11-20 20:50:34,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:50:34,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 20:50:34,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:50:34,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 20:50:34,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 20:50:34,882 INFO L87 Difference]: Start difference. First operand 206 states and 245 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-20 20:50:35,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:50:35,094 INFO L93 Difference]: Finished difference Result 418 states and 513 transitions. [2022-11-20 20:50:35,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 20:50:35,094 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 34 [2022-11-20 20:50:35,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:50:35,097 INFO L225 Difference]: With dead ends: 418 [2022-11-20 20:50:35,097 INFO L226 Difference]: Without dead ends: 310 [2022-11-20 20:50:35,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-20 20:50:35,099 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 139 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:50:35,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 313 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:50:35,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2022-11-20 20:50:35,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 288. [2022-11-20 20:50:35,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 192 states have (on average 1.1979166666666667) internal successors, (230), 206 states have internal predecessors, (230), 48 states have call successors, (48), 40 states have call predecessors, (48), 47 states have return successors, (63), 50 states have call predecessors, (63), 48 states have call successors, (63) [2022-11-20 20:50:35,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 341 transitions. [2022-11-20 20:50:35,155 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 341 transitions. Word has length 34 [2022-11-20 20:50:35,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:50:35,156 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 341 transitions. [2022-11-20 20:50:35,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-20 20:50:35,156 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 341 transitions. [2022-11-20 20:50:35,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-20 20:50:35,157 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:50:35,158 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:50:35,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 20:50:35,158 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:50:35,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:50:35,164 INFO L85 PathProgramCache]: Analyzing trace with hash 924459008, now seen corresponding path program 1 times [2022-11-20 20:50:35,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:50:35,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775051556] [2022-11-20 20:50:35,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:50:35,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:50:35,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:50:35,464 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 20:50:35,465 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:50:35,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775051556] [2022-11-20 20:50:35,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775051556] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:50:35,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:50:35,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 20:50:35,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997027616] [2022-11-20 20:50:35,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:50:35,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 20:50:35,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:50:35,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 20:50:35,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-20 20:50:35,470 INFO L87 Difference]: Start difference. First operand 288 states and 341 transitions. Second operand has 11 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 2 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 20:50:36,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:50:36,098 INFO L93 Difference]: Finished difference Result 970 states and 1199 transitions. [2022-11-20 20:50:36,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-20 20:50:36,099 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 2 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) Word has length 39 [2022-11-20 20:50:36,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:50:36,104 INFO L225 Difference]: With dead ends: 970 [2022-11-20 20:50:36,104 INFO L226 Difference]: Without dead ends: 639 [2022-11-20 20:50:36,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=333, Unknown=0, NotChecked=0, Total=420 [2022-11-20 20:50:36,107 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 96 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 20:50:36,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 753 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 20:50:36,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2022-11-20 20:50:36,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 604. [2022-11-20 20:50:36,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 399 states have (on average 1.1829573934837092) internal successors, (472), 424 states have internal predecessors, (472), 106 states have call successors, (106), 90 states have call predecessors, (106), 98 states have return successors, (154), 103 states have call predecessors, (154), 106 states have call successors, (154) [2022-11-20 20:50:36,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 732 transitions. [2022-11-20 20:50:36,185 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 732 transitions. Word has length 39 [2022-11-20 20:50:36,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:50:36,186 INFO L495 AbstractCegarLoop]: Abstraction has 604 states and 732 transitions. [2022-11-20 20:50:36,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 2 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 20:50:36,186 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 732 transitions. [2022-11-20 20:50:36,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-20 20:50:36,190 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:50:36,190 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:50:36,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 20:50:36,191 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:50:36,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:50:36,191 INFO L85 PathProgramCache]: Analyzing trace with hash -286999275, now seen corresponding path program 1 times [2022-11-20 20:50:36,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:50:36,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064407979] [2022-11-20 20:50:36,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:50:36,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:50:36,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:50:36,513 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 20:50:36,514 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:50:36,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064407979] [2022-11-20 20:50:36,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064407979] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 20:50:36,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460480483] [2022-11-20 20:50:36,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:50:36,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:50:36,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfa7824-e112-4ad1-a139-1014f0728e22/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:50:36,527 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfa7824-e112-4ad1-a139-1014f0728e22/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:50:36,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfa7824-e112-4ad1-a139-1014f0728e22/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 20:50:36,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:50:36,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-20 20:50:36,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:50:37,237 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 20:50:37,237 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:50:37,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460480483] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:50:37,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 20:50:37,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 18 [2022-11-20 20:50:37,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877628167] [2022-11-20 20:50:37,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:50:37,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 20:50:37,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:50:37,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 20:50:37,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2022-11-20 20:50:37,239 INFO L87 Difference]: Start difference. First operand 604 states and 732 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 5 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 5 states have call successors, (9) [2022-11-20 20:50:37,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:50:37,897 INFO L93 Difference]: Finished difference Result 929 states and 1139 transitions. [2022-11-20 20:50:37,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 20:50:37,898 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 5 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 5 states have call successors, (9) Word has length 67 [2022-11-20 20:50:37,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:50:37,900 INFO L225 Difference]: With dead ends: 929 [2022-11-20 20:50:37,900 INFO L226 Difference]: Without dead ends: 327 [2022-11-20 20:50:37,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=102, Invalid=498, Unknown=0, NotChecked=0, Total=600 [2022-11-20 20:50:37,902 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 136 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 20:50:37,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 166 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 20:50:37,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-11-20 20:50:37,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 285. [2022-11-20 20:50:37,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 191 states have (on average 1.1832460732984293) internal successors, (226), 203 states have internal predecessors, (226), 48 states have call successors, (48), 45 states have call predecessors, (48), 45 states have return successors, (64), 46 states have call predecessors, (64), 48 states have call successors, (64) [2022-11-20 20:50:37,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 338 transitions. [2022-11-20 20:50:37,940 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 338 transitions. Word has length 67 [2022-11-20 20:50:37,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:50:37,941 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 338 transitions. [2022-11-20 20:50:37,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 5 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 5 states have call successors, (9) [2022-11-20 20:50:37,941 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 338 transitions. [2022-11-20 20:50:37,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-20 20:50:37,943 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:50:37,943 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:50:37,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfa7824-e112-4ad1-a139-1014f0728e22/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 20:50:38,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfa7824-e112-4ad1-a139-1014f0728e22/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:50:38,150 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:50:38,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:50:38,150 INFO L85 PathProgramCache]: Analyzing trace with hash -765996758, now seen corresponding path program 1 times [2022-11-20 20:50:38,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:50:38,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825533876] [2022-11-20 20:50:38,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:50:38,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:50:38,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:50:38,412 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 20:50:38,413 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:50:38,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825533876] [2022-11-20 20:50:38,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825533876] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 20:50:38,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086349682] [2022-11-20 20:50:38,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:50:38,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:50:38,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfa7824-e112-4ad1-a139-1014f0728e22/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:50:38,416 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfa7824-e112-4ad1-a139-1014f0728e22/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:50:38,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfa7824-e112-4ad1-a139-1014f0728e22/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 20:50:38,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:50:38,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-20 20:50:38,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:50:38,807 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 1 proven. 27 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 20:50:38,808 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:50:39,242 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-20 20:50:39,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2086349682] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:50:39,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [796256986] [2022-11-20 20:50:39,263 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2022-11-20 20:50:39,263 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 20:50:39,267 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 20:50:39,272 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 20:50:39,272 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 20:50:42,618 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 44 for LOIs [2022-11-20 20:50:42,657 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 43 for LOIs [2022-11-20 20:50:42,993 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 40 for LOIs [2022-11-20 20:50:43,190 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 22 for LOIs [2022-11-20 20:50:43,212 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 38 for LOIs [2022-11-20 20:50:43,217 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 24 for LOIs [2022-11-20 20:50:43,220 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 20:50:49,343 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8126#(and (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~5#1|) (<= 0 |old(~pumpRunning~0)|) (= |timeShift_getWaterLevel_~retValue_acc~1#1| ~waterLevel~0) (= ~head~0.offset 0) (<= 1 ~systemActive~0) (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1|) (= |timeShift_getWaterLevel_#res#1| |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1|) (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~5#1|) (<= |#NULL.offset| 0) (= 0 |timeShift___utac_acc__Specification3_spec__1_~tmp___1~0#1|) (= |timeShift_getWaterLevel_~retValue_acc~1#1| |timeShift_getWaterLevel_#res#1|) (<= 0 ~head~0.base) (= |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1| 0) (<= ~head~0.base 0) (<= 0 |#NULL.offset|) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification3_spec__1_~tmp___1~0#1|) (<= 0 |#StackHeapBarrier|) (<= ~systemActive~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0) (= 2 |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1|))' at error location [2022-11-20 20:50:49,344 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-20 20:50:49,344 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 20:50:49,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 11] total 27 [2022-11-20 20:50:49,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739594442] [2022-11-20 20:50:49,345 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 20:50:49,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-20 20:50:49,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:50:49,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-20 20:50:49,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=320, Invalid=3220, Unknown=0, NotChecked=0, Total=3540 [2022-11-20 20:50:49,348 INFO L87 Difference]: Start difference. First operand 285 states and 338 transitions. Second operand has 27 states, 21 states have (on average 5.714285714285714) internal successors, (120), 20 states have internal predecessors, (120), 11 states have call successors, (30), 8 states have call predecessors, (30), 12 states have return successors, (28), 15 states have call predecessors, (28), 11 states have call successors, (28) [2022-11-20 20:50:52,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:50:52,595 INFO L93 Difference]: Finished difference Result 979 states and 1186 transitions. [2022-11-20 20:50:52,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-11-20 20:50:52,598 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 21 states have (on average 5.714285714285714) internal successors, (120), 20 states have internal predecessors, (120), 11 states have call successors, (30), 8 states have call predecessors, (30), 12 states have return successors, (28), 15 states have call predecessors, (28), 11 states have call successors, (28) Word has length 70 [2022-11-20 20:50:52,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:50:52,601 INFO L225 Difference]: With dead ends: 979 [2022-11-20 20:50:52,602 INFO L226 Difference]: Without dead ends: 696 [2022-11-20 20:50:52,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 167 SyntacticMatches, 10 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5264 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=1490, Invalid=13516, Unknown=0, NotChecked=0, Total=15006 [2022-11-20 20:50:52,609 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 1134 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 1766 mSolverCounterSat, 688 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1141 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 2454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 688 IncrementalHoareTripleChecker+Valid, 1766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-20 20:50:52,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1141 Valid, 216 Invalid, 2454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [688 Valid, 1766 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-20 20:50:52,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2022-11-20 20:50:52,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 359. [2022-11-20 20:50:52,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 241 states have (on average 1.1410788381742738) internal successors, (275), 257 states have internal predecessors, (275), 59 states have call successors, (59), 57 states have call predecessors, (59), 58 states have return successors, (69), 58 states have call predecessors, (69), 59 states have call successors, (69) [2022-11-20 20:50:52,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 403 transitions. [2022-11-20 20:50:52,659 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 403 transitions. Word has length 70 [2022-11-20 20:50:52,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:50:52,660 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 403 transitions. [2022-11-20 20:50:52,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 21 states have (on average 5.714285714285714) internal successors, (120), 20 states have internal predecessors, (120), 11 states have call successors, (30), 8 states have call predecessors, (30), 12 states have return successors, (28), 15 states have call predecessors, (28), 11 states have call successors, (28) [2022-11-20 20:50:52,660 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 403 transitions. [2022-11-20 20:50:52,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-20 20:50:52,662 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:50:52,662 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:50:52,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfa7824-e112-4ad1-a139-1014f0728e22/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 20:50:52,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfa7824-e112-4ad1-a139-1014f0728e22/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:50:52,868 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:50:52,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:50:52,868 INFO L85 PathProgramCache]: Analyzing trace with hash 838710707, now seen corresponding path program 1 times [2022-11-20 20:50:52,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:50:52,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044453931] [2022-11-20 20:50:52,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:50:52,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:50:52,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:50:53,051 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-20 20:50:53,051 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:50:53,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044453931] [2022-11-20 20:50:53,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044453931] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 20:50:53,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169627093] [2022-11-20 20:50:53,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:50:53,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:50:53,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfa7824-e112-4ad1-a139-1014f0728e22/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:50:53,053 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfa7824-e112-4ad1-a139-1014f0728e22/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:50:53,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfa7824-e112-4ad1-a139-1014f0728e22/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 20:50:53,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:50:53,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-20 20:50:53,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:50:53,619 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-20 20:50:53,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:50:54,117 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-20 20:50:54,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1169627093] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:50:54,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [836157656] [2022-11-20 20:50:54,124 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-11-20 20:50:54,124 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 20:50:54,125 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 20:50:54,125 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 20:50:54,126 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 20:50:56,565 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 50 for LOIs [2022-11-20 20:50:56,574 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 27 for LOIs [2022-11-20 20:50:56,895 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 24 for LOIs [2022-11-20 20:50:57,016 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 50 for LOIs [2022-11-20 20:50:57,118 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 22 for LOIs [2022-11-20 20:50:57,120 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 20:51:03,710 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10736#(and (<= ~cleanupTimeShifts~0 4) (<= ~head~0.offset 0) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~5#1|) (<= 0 |#NULL.base|) (<= 0 |old(~pumpRunning~0)|) (<= 0 ~head~0.offset) (= |timeShift_getWaterLevel_~retValue_acc~1#1| ~waterLevel~0) (<= 1 ~systemActive~0) (= |timeShift_getWaterLevel_#res#1| |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1|) (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~5#1|) (<= |#NULL.offset| 0) (= 0 |timeShift___utac_acc__Specification3_spec__1_~tmp___1~0#1|) (= |timeShift_getWaterLevel_~retValue_acc~1#1| |timeShift_getWaterLevel_#res#1|) (<= 4 ~cleanupTimeShifts~0) (<= |old(~pumpRunning~0)| 0) (<= ~methaneLevelCritical~0 0) (<= 0 ~head~0.base) (= |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1| 0) (<= |#NULL.base| 0) (<= 0 ~methaneLevelCritical~0) (= |old(~waterLevel~0)| ~waterLevel~0) (<= ~head~0.base 0) (<= 0 |#NULL.offset|) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification3_spec__1_~tmp___1~0#1|) (<= 0 |#StackHeapBarrier|) (<= ~systemActive~0 1) (= 2 |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1|))' at error location [2022-11-20 20:51:03,711 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-20 20:51:03,711 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 20:51:03,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12, 11] total 28 [2022-11-20 20:51:03,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451471242] [2022-11-20 20:51:03,712 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 20:51:03,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-20 20:51:03,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:51:03,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-20 20:51:03,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=458, Invalid=3324, Unknown=0, NotChecked=0, Total=3782 [2022-11-20 20:51:03,714 INFO L87 Difference]: Start difference. First operand 359 states and 403 transitions. Second operand has 28 states, 25 states have (on average 4.48) internal successors, (112), 25 states have internal predecessors, (112), 10 states have call successors, (24), 8 states have call predecessors, (24), 9 states have return successors, (22), 13 states have call predecessors, (22), 9 states have call successors, (22) [2022-11-20 20:51:09,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:51:09,199 INFO L93 Difference]: Finished difference Result 1588 states and 1886 transitions. [2022-11-20 20:51:09,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-11-20 20:51:09,200 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 25 states have (on average 4.48) internal successors, (112), 25 states have internal predecessors, (112), 10 states have call successors, (24), 8 states have call predecessors, (24), 9 states have return successors, (22), 13 states have call predecessors, (22), 9 states have call successors, (22) Word has length 68 [2022-11-20 20:51:09,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:51:09,201 INFO L225 Difference]: With dead ends: 1588 [2022-11-20 20:51:09,202 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 20:51:09,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 170 SyntacticMatches, 5 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9002 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=3503, Invalid=21937, Unknown=0, NotChecked=0, Total=25440 [2022-11-20 20:51:09,211 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 906 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 2569 mSolverCounterSat, 799 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 910 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 3368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 799 IncrementalHoareTripleChecker+Valid, 2569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-20 20:51:09,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [910 Valid, 541 Invalid, 3368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [799 Valid, 2569 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-20 20:51:09,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 20:51:09,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 20:51:09,212 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) [2022-11-20 20:51:09,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 20:51:09,213 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 68 [2022-11-20 20:51:09,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:51:09,213 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 20:51:09,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 25 states have (on average 4.48) internal successors, (112), 25 states have internal predecessors, (112), 10 states have call successors, (24), 8 states have call predecessors, (24), 9 states have return successors, (22), 13 states have call predecessors, (22), 9 states have call successors, (22) [2022-11-20 20:51:09,214 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 20:51:09,214 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 20:51:09,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 20:51:09,227 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfa7824-e112-4ad1-a139-1014f0728e22/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-20 20:51:09,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfa7824-e112-4ad1-a139-1014f0728e22/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-20 20:51:09,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 20:51:21,756 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 318 324) no Hoare annotation was computed. [2022-11-20 20:51:21,756 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 318 324) the Hoare annotation is: true [2022-11-20 20:51:21,756 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 119 130) the Hoare annotation is: (let ((.cse0 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse2 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (.cse5 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse6 (= ~methaneLevelCritical~0 1)) (.cse3 (not (= ~pumpRunning~0 1))) (.cse7 (not (= |old(~methaneLevelCritical~0)| 1))) (.cse4 (not (< ~waterLevel~0 3)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse1 .cse2 .cse4) (or .cse5 .cse1 .cse6 .cse7 .cse4) (or .cse1 .cse6 .cse3 .cse7 .cse4))) [2022-11-20 20:51:21,756 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 119 130) no Hoare annotation was computed. [2022-11-20 20:51:21,757 INFO L895 garLoopResultBuilder]: At program point L366(line 366) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse6 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse7 (or (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) (<= ~waterLevel~0 0))) (.cse8 (= |timeShift_processEnvironment_~tmp~3#1| 0)) (.cse9 (= ~pumpRunning~0 1)) (.cse1 (not (= 1 ~systemActive~0))) (.cse5 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (not (= ~methaneLevelCritical~0 1))) (.cse3 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse4 .cse3) (or (not (<= |old(~waterLevel~0)| 1)) .cse1 .cse5 .cse4 .cse6) (or .cse1 .cse2 .cse5 (and .cse7 .cse6 .cse8 .cse9) .cse3) (or (and .cse7 .cse8 .cse9) .cse1 .cse5 .cse4 .cse3))) [2022-11-20 20:51:21,757 INFO L899 garLoopResultBuilder]: For program point L73(lines 73 79) no Hoare annotation was computed. [2022-11-20 20:51:21,757 INFO L895 garLoopResultBuilder]: At program point L358(line 358) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse4 (not (= ~methaneLevelCritical~0 1))) (.cse7 (or (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) (<= ~waterLevel~0 0))) (.cse8 (= ~pumpRunning~0 1)) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse4 .cse3) (or .cse1 .cse2 .cse5 .cse6 (not (<= |old(~waterLevel~0)| 0))) (or .cse1 (and .cse7 .cse6 .cse8) .cse5 .cse4 .cse3) (or (and .cse7 .cse8) .cse1 .cse2 .cse5 .cse3))) [2022-11-20 20:51:21,757 INFO L899 garLoopResultBuilder]: For program point L358-1(line 358) no Hoare annotation was computed. [2022-11-20 20:51:21,758 INFO L895 garLoopResultBuilder]: At program point L69(lines 69 82) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse1 (not (= 1 ~systemActive~0))) (.cse4 (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1|)) (.cse5 (= ~waterLevel~0 |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1|)) (.cse8 (= ~pumpRunning~0 1)) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse9 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 (and (= ~pumpRunning~0 0) .cse4 .cse5 (<= |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1| 1)) .cse6 (and (<= 2 ~waterLevel~0) .cse4 .cse5 .cse7 .cse8) .cse3) (or (not (<= |old(~waterLevel~0)| 1)) .cse1 .cse6 .cse9 (and (<= ~waterLevel~0 0) .cse7)) (or .cse1 .cse9 .cse2 .cse3) (or .cse0 .cse1 .cse6 .cse7 (not (<= |old(~waterLevel~0)| 0))) (or .cse1 (and (<= ~waterLevel~0 1) .cse4 .cse5 (= |timeShift_processEnvironment_~tmp~3#1| 0) .cse8) .cse6 .cse9 .cse3))) [2022-11-20 20:51:21,758 INFO L895 garLoopResultBuilder]: At program point L69-1(lines 54 86) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse5 (= |timeShift_processEnvironment_~tmp~3#1| 0)) (.cse9 (not (= |old(~pumpRunning~0)| 1))) (.cse14 (<= ~waterLevel~0 0)) (.cse13 (not (<= |old(~waterLevel~0)| 1))) (.cse12 (not (= ~methaneLevelCritical~0 1))) (.cse15 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (not (= 1 ~systemActive~0))) (.cse8 (not (= ~methaneLevelCritical~0 0))) (.cse6 (= ~pumpRunning~0 1)) (.cse11 (= ~pumpRunning~0 0)) (.cse1 (<= ~waterLevel~0 1)) (.cse2 (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1|)) (.cse3 (= ~waterLevel~0 |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1|)) (.cse4 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse10 (not (< |old(~waterLevel~0)| 3)))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) .cse7 .cse8 .cse9 .cse10) (or .cse7 (and .cse11 .cse1 .cse2) .cse9 (and .cse0 .cse1 .cse2 .cse5 .cse6) .cse12 .cse10) (or .cse13 .cse7 .cse8 .cse9 .cse14) (or .cse13 .cse7 .cse9 .cse12 (and .cse14 .cse4)) (or .cse13 .cse15 .cse7 .cse12 .cse4) (or .cse15 .cse7 (and .cse11 .cse2 (< ~waterLevel~0 3)) .cse12 .cse10) (or .cse15 .cse7 .cse8 (and (<= 2 ~waterLevel~0) .cse2 .cse3 .cse4 .cse6) (and .cse11 .cse1 .cse2 .cse3 .cse4) .cse10))) [2022-11-20 20:51:21,759 INFO L895 garLoopResultBuilder]: At program point L61(line 61) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 1)) (.cse8 (= ~pumpRunning~0 0)) (.cse13 (<= ~waterLevel~0 1)) (.cse4 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse3 (and .cse8 .cse13 .cse4)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse12 (and .cse13 .cse4 (= |timeShift_processEnvironment_~tmp~3#1| 0) .cse5)) (.cse6 (not (< |old(~waterLevel~0)| 3))) (.cse9 (not (<= |old(~waterLevel~0)| 1))) (.cse1 (not (= 1 ~systemActive~0))) (.cse10 (not (= |old(~pumpRunning~0)| 1))) (.cse11 (<= ~waterLevel~0 0)) (.cse7 (not (= ~methaneLevelCritical~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 (and (<= 2 ~waterLevel~0) .cse4 .cse5) .cse6) (or .cse0 .cse1 .cse7 (and .cse8 (< ~waterLevel~0 3)) .cse6) (or .cse9 .cse1 .cse2 .cse10 .cse11) (or .cse1 .cse10 .cse3 .cse7 .cse12 .cse6) (or .cse9 .cse0 .cse1 .cse7 .cse4) (or .cse1 .cse2 .cse10 .cse12 .cse6) (or .cse9 .cse1 .cse10 .cse11 .cse7)))) [2022-11-20 20:51:21,759 INFO L899 garLoopResultBuilder]: For program point L61-1(line 61) no Hoare annotation was computed. [2022-11-20 20:51:21,759 INFO L895 garLoopResultBuilder]: At program point L371(line 371) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse2 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= 1 ~systemActive~0))) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse7 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 .cse2 (and .cse3 (< ~waterLevel~0 3)) .cse4) (or .cse0 .cse1 .cse5 (and .cse3 .cse6) .cse4) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 .cse2 .cse6) (or .cse1 .cse7 .cse2 .cse4) (or .cse1 .cse5 .cse7 .cse4))) [2022-11-20 20:51:21,759 INFO L895 garLoopResultBuilder]: At program point L371-1(lines 352 376) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 1)) (.cse8 (= ~pumpRunning~0 0)) (.cse13 (<= ~waterLevel~0 1)) (.cse4 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse3 (and .cse8 .cse13 .cse4)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse12 (and .cse13 .cse4 (= |timeShift_processEnvironment_~tmp~3#1| 0) .cse5)) (.cse6 (not (< |old(~waterLevel~0)| 3))) (.cse9 (not (<= |old(~waterLevel~0)| 1))) (.cse1 (not (= 1 ~systemActive~0))) (.cse10 (not (= |old(~pumpRunning~0)| 1))) (.cse11 (<= ~waterLevel~0 0)) (.cse7 (not (= ~methaneLevelCritical~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 (and (<= 2 ~waterLevel~0) .cse4 .cse5) .cse6) (or .cse0 .cse1 .cse7 (and .cse8 (< ~waterLevel~0 3)) .cse6) (or .cse9 .cse1 .cse2 .cse10 .cse11) (or .cse1 .cse10 .cse3 .cse7 .cse12 .cse6) (or .cse9 .cse0 .cse1 .cse7 .cse4) (or .cse1 .cse2 .cse10 .cse12 .cse6) (or .cse9 .cse1 .cse10 .cse11 .cse7)))) [2022-11-20 20:51:21,760 INFO L899 garLoopResultBuilder]: For program point L305-1(lines 305 311) no Hoare annotation was computed. [2022-11-20 20:51:21,760 INFO L895 garLoopResultBuilder]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse4 .cse3) (or .cse1 .cse5 .cse4 .cse3) (or .cse1 .cse2 .cse5 .cse3))) [2022-11-20 20:51:21,760 INFO L899 garLoopResultBuilder]: For program point L298-1(lines 297 316) no Hoare annotation was computed. [2022-11-20 20:51:21,760 INFO L895 garLoopResultBuilder]: At program point L360(lines 360 368) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse8 (not (= |old(~pumpRunning~0)| 1))) (.cse5 (or (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) (<= ~waterLevel~0 0))) (.cse6 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse7 (= ~pumpRunning~0 1)) (.cse3 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse4 .cse3) (or .cse1 (and .cse5 .cse6 .cse7) .cse8 .cse4 .cse3) (or .cse1 .cse2 .cse8 (and .cse5 .cse6 (= |timeShift_processEnvironment_~tmp~3#1| 0) .cse7) .cse3))) [2022-11-20 20:51:21,760 INFO L899 garLoopResultBuilder]: For program point L356(lines 356 373) no Hoare annotation was computed. [2022-11-20 20:51:21,761 INFO L895 garLoopResultBuilder]: At program point L63(lines 63 83) the Hoare annotation is: (let ((.cse11 (= ~pumpRunning~0 0)) (.cse4 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse14 (<= ~waterLevel~0 1)) (.cse12 (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1|)) (.cse13 (= ~pumpRunning~0 1))) (let ((.cse5 (and .cse14 .cse12 (= |timeShift_processEnvironment_~tmp~3#1| 0) .cse13)) (.cse6 (not (= |old(~pumpRunning~0)| 1))) (.cse10 (and (<= ~waterLevel~0 0) .cse4)) (.cse0 (not (<= |old(~waterLevel~0)| 1))) (.cse9 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse8 (and .cse11 .cse14 .cse12)) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse7 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse2 .cse5 .cse3 .cse6 .cse7) (or .cse2 .cse8 .cse5 .cse6 .cse9 .cse7) (or .cse0 .cse2 .cse6 .cse9 .cse10) (or .cse0 .cse2 .cse3 .cse6 .cse10) (or .cse0 .cse1 .cse2 .cse9 .cse4) (or .cse1 .cse2 (and .cse11 .cse12 (< ~waterLevel~0 3)) .cse9 .cse7) (or .cse1 .cse2 .cse8 .cse3 (and (<= 2 ~waterLevel~0) .cse12 .cse4 .cse13) .cse7)))) [2022-11-20 20:51:21,761 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 294 317) the Hoare annotation is: (let ((.cse9 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse8 (= 1 ~systemActive~0)) (.cse10 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse5 (and .cse9 .cse8 .cse10)) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (and .cse9 .cse8 .cse10 (= ~pumpRunning~0 1))) (.cse1 (not .cse8)) (.cse3 (not (= |old(~pumpRunning~0)| 1))) (.cse7 (not (= ~methaneLevelCritical~0 1))) (.cse4 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse1 .cse2 .cse4) (or .cse5 .cse6 .cse1 .cse7 .cse4) (or .cse0 .cse1 .cse3 .cse7 .cse4)))) [2022-11-20 20:51:21,761 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 294 317) no Hoare annotation was computed. [2022-11-20 20:51:21,761 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 590) no Hoare annotation was computed. [2022-11-20 20:51:21,762 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 189 218) no Hoare annotation was computed. [2022-11-20 20:51:21,762 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 189 218) the Hoare annotation is: true [2022-11-20 20:51:21,762 INFO L902 garLoopResultBuilder]: At program point L214(lines 189 218) the Hoare annotation is: true [2022-11-20 20:51:21,762 INFO L899 garLoopResultBuilder]: For program point L210(line 210) no Hoare annotation was computed. [2022-11-20 20:51:21,762 INFO L899 garLoopResultBuilder]: For program point L203(lines 203 207) no Hoare annotation was computed. [2022-11-20 20:51:21,762 INFO L902 garLoopResultBuilder]: At program point L203-1(lines 203 207) the Hoare annotation is: true [2022-11-20 20:51:21,762 INFO L902 garLoopResultBuilder]: At program point L199-2(lines 199 213) the Hoare annotation is: true [2022-11-20 20:51:21,763 INFO L902 garLoopResultBuilder]: At program point L195(line 195) the Hoare annotation is: true [2022-11-20 20:51:21,763 INFO L899 garLoopResultBuilder]: For program point L195-1(line 195) no Hoare annotation was computed. [2022-11-20 20:51:21,763 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 131 139) the Hoare annotation is: true [2022-11-20 20:51:21,763 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 131 139) no Hoare annotation was computed. [2022-11-20 20:51:21,763 INFO L895 garLoopResultBuilder]: At program point L539(lines 496 541) the Hoare annotation is: (let ((.cse2 (= ~methaneLevelCritical~0 1)) (.cse4 (< ~waterLevel~0 3)) (.cse6 (= ~pumpRunning~0 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse7 (= ~methaneLevelCritical~0 0)) (.cse5 (<= ~waterLevel~0 1)) (.cse1 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse1 .cse2 .cse3 .cse6) (and .cse7 .cse1 .cse3 .cse4 .cse6) (and .cse0 .cse7 .cse5 .cse1 .cse3))) [2022-11-20 20:51:21,763 INFO L899 garLoopResultBuilder]: For program point L506(lines 506 512) no Hoare annotation was computed. [2022-11-20 20:51:21,764 INFO L899 garLoopResultBuilder]: For program point L506-1(lines 506 512) no Hoare annotation was computed. [2022-11-20 20:51:21,764 INFO L895 garLoopResultBuilder]: At program point L275(lines 275 282) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (<= ~waterLevel~0 1) (= 1 ~systemActive~0)) [2022-11-20 20:51:21,764 INFO L902 garLoopResultBuilder]: At program point L275-2(lines 275 282) the Hoare annotation is: true [2022-11-20 20:51:21,764 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-20 20:51:21,764 INFO L895 garLoopResultBuilder]: At program point L532-2(lines 526 537) the Hoare annotation is: (let ((.cse2 (= ~methaneLevelCritical~0 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (< ~waterLevel~0 3)) (.cse5 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse6 .cse1 .cse3 .cse4) (and .cse6 .cse1 .cse3 .cse4 .cse5))) [2022-11-20 20:51:21,764 INFO L899 garLoopResultBuilder]: For program point L516(lines 516 522) no Hoare annotation was computed. [2022-11-20 20:51:21,764 INFO L899 garLoopResultBuilder]: For program point L516-1(lines 516 522) no Hoare annotation was computed. [2022-11-20 20:51:21,764 INFO L902 garLoopResultBuilder]: At program point L545(lines 486 549) the Hoare annotation is: true [2022-11-20 20:51:21,764 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 20:51:21,765 INFO L895 garLoopResultBuilder]: At program point L508(line 508) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (= ~methaneLevelCritical~0 1)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (< ~waterLevel~0 3)) (.cse6 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse1 .cse3 .cse4) (and (<= ~waterLevel~0 1) .cse1 .cse2 .cse3 .cse6) (and .cse5 .cse1 .cse3 .cse4 .cse6))) [2022-11-20 20:51:21,765 INFO L895 garLoopResultBuilder]: At program point L542(lines 495 543) the Hoare annotation is: false [2022-11-20 20:51:21,765 INFO L899 garLoopResultBuilder]: For program point L497(lines 496 541) no Hoare annotation was computed. [2022-11-20 20:51:21,765 INFO L895 garLoopResultBuilder]: At program point L518(line 518) the Hoare annotation is: (let ((.cse2 (= ~methaneLevelCritical~0 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (< ~waterLevel~0 3)) (.cse5 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse6 .cse1 .cse3 .cse4) (and .cse6 .cse1 .cse3 .cse4 .cse5))) [2022-11-20 20:51:21,765 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 107 118) no Hoare annotation was computed. [2022-11-20 20:51:21,765 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 107 118) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse5 (not (<= |old(~waterLevel~0)| 1))) (.cse6 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse7 (not (= ~pumpRunning~0 1))) (.cse3 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse4 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse0 .cse1 .cse6 .cse3) (or .cse0 .cse1 .cse6 (< ~waterLevel~0 3) .cse4) (or .cse5 .cse1 .cse7 .cse6 .cse3) (or .cse1 .cse2 .cse7 .cse3 .cse4))) [2022-11-20 20:51:21,765 INFO L895 garLoopResultBuilder]: At program point L345(line 345) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (<= ~waterLevel~0 1))) (.cse4 (= ~pumpRunning~0 1)) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse7 (not (= ~methaneLevelCritical~0 0))) (.cse6 (not (< ~waterLevel~0 3)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse0 .cse2 .cse6) (or .cse0 .cse7 .cse1 .cse3 .cse4) (or .cse5 .cse0 .cse7 .cse6))) [2022-11-20 20:51:21,765 INFO L899 garLoopResultBuilder]: For program point L345-1(lines 326 350) no Hoare annotation was computed. [2022-11-20 20:51:21,766 INFO L895 garLoopResultBuilder]: At program point L340(line 340) the Hoare annotation is: (let ((.cse2 (<= ~waterLevel~0 1))) (let ((.cse5 (not (= ~methaneLevelCritical~0 1))) (.cse7 (not (= |old(~pumpRunning~0)| 1))) (.cse6 (not (< ~waterLevel~0 3))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (= 1 ~systemActive~0))) (.cse9 (not (= ~methaneLevelCritical~0 0))) (.cse8 (not .cse2)) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (= |processEnvironment__wrappee__methaneQuery_~tmp~2#1| 0))) (and (or .cse0 (and .cse1 .cse2 .cse3) .cse4 .cse5 .cse6) (or .cse4 .cse7 .cse5 .cse8) (or .cse4 .cse9 .cse7 .cse8) (or .cse0 .cse4 .cse2 .cse9 .cse6) (or .cse0 .cse4 .cse9 .cse8 (and .cse1 .cse3))))) [2022-11-20 20:51:21,766 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 326 350) the Hoare annotation is: (let ((.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (= ~pumpRunning~0 0)) (.cse2 (not (= ~methaneLevelCritical~0 1))) (.cse8 (not (< ~waterLevel~0 3))) (.cse0 (not (= 1 ~systemActive~0))) (.cse7 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (<= ~waterLevel~0 1))) (.cse4 (= ~pumpRunning~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse0 .cse7 .cse8) (or .cse5 .cse6 .cse0 .cse2 .cse8) (or .cse0 .cse7 .cse1 .cse3 .cse4))) [2022-11-20 20:51:21,766 INFO L899 garLoopResultBuilder]: For program point L334(lines 334 342) no Hoare annotation was computed. [2022-11-20 20:51:21,766 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 326 350) no Hoare annotation was computed. [2022-11-20 20:51:21,766 INFO L895 garLoopResultBuilder]: At program point L330(lines 330 347) the Hoare annotation is: (let ((.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (= ~pumpRunning~0 0)) (.cse2 (not (= ~methaneLevelCritical~0 1))) (.cse8 (not (< ~waterLevel~0 3))) (.cse0 (not (= 1 ~systemActive~0))) (.cse7 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (<= ~waterLevel~0 1))) (.cse4 (= ~pumpRunning~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse0 .cse7 .cse8) (or .cse5 .cse6 .cse0 .cse2 .cse8) (or .cse0 .cse7 .cse1 .cse3 .cse4))) [2022-11-20 20:51:21,766 INFO L895 garLoopResultBuilder]: At program point L390(line 390) the Hoare annotation is: (let ((.cse8 (= 1 ~systemActive~0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0) .cse8 (= |processEnvironment__wrappee__methaneQuery_~tmp~2#1| 1))) (.cse6 (not (= ~methaneLevelCritical~0 1))) (.cse4 (not (< ~waterLevel~0 3))) (.cse1 (not .cse8)) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (= |old(~pumpRunning~0)| 1))) (.cse7 (not (<= ~waterLevel~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse5 .cse6 .cse7) (or .cse0 .cse1 .cse2 .cse6 .cse4) (or .cse1 .cse3 .cse5 .cse7)))) [2022-11-20 20:51:21,767 INFO L895 garLoopResultBuilder]: At program point L390-1(line 390) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse8 (not (= ~methaneLevelCritical~0 1))) (.cse6 (not (< ~waterLevel~0 3))) (.cse3 (= |processEnvironment__wrappee__methaneQuery_~tmp~2#1| 1)) (.cse4 (or (= ~pumpRunning~0 0) (not (< 0 ~waterLevel~0)))) (.cse5 (= |processEnvironment__wrappee__methaneQuery_activatePump_#t~ret15#1| ~methaneLevelCritical~0)) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse7 (not (= |old(~pumpRunning~0)| 1))) (.cse9 (not (<= ~waterLevel~0 1)))) (and (or .cse0 .cse1 .cse2 (and (<= 2 ~waterLevel~0) .cse3 .cse4 .cse5) .cse6) (or .cse1 .cse7 .cse8 .cse9) (or .cse0 .cse1 .cse8 .cse9) (or .cse0 .cse1 .cse8 .cse6 (and .cse3 .cse4 .cse5)) (or .cse1 .cse2 .cse7 .cse9))) [2022-11-20 20:51:21,767 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 410 420) the Hoare annotation is: true [2022-11-20 20:51:21,767 INFO L902 garLoopResultBuilder]: At program point L415(line 415) the Hoare annotation is: true [2022-11-20 20:51:21,767 INFO L899 garLoopResultBuilder]: For program point L415-1(line 415) no Hoare annotation was computed. [2022-11-20 20:51:21,767 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 410 420) no Hoare annotation was computed. [2022-11-20 20:51:21,769 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:51:21,771 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 20:51:21,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 08:51:21 BoogieIcfgContainer [2022-11-20 20:51:21,802 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 20:51:21,802 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 20:51:21,803 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 20:51:21,803 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 20:51:21,803 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:50:32" (3/4) ... [2022-11-20 20:51:21,806 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 20:51:21,812 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-20 20:51:21,812 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-20 20:51:21,812 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-20 20:51:21,813 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-20 20:51:21,813 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-20 20:51:21,813 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-20 20:51:21,813 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-11-20 20:51:21,813 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-11-20 20:51:21,829 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2022-11-20 20:51:21,830 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-20 20:51:21,830 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-20 20:51:21,833 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 20:51:21,833 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 20:51:21,866 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((pumpRunning == \old(pumpRunning) && 1 == systemActive) && waterLevel <= \old(waterLevel)) && pumpRunning == 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3)) && ((((((pumpRunning == \old(pumpRunning) && 1 == systemActive) && waterLevel <= \old(waterLevel)) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) < 3))) && ((((((pumpRunning == \old(pumpRunning) && 1 == systemActive) && waterLevel <= \old(waterLevel)) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && (((((((pumpRunning == \old(pumpRunning) && 1 == systemActive) && waterLevel <= \old(waterLevel)) && pumpRunning == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3)) [2022-11-20 20:51:21,867 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || ((pumpRunning == 0 && waterLevel <= 1) && waterLevel <= \old(waterLevel))) || ((2 <= waterLevel && waterLevel <= \old(waterLevel)) && pumpRunning == 1)) || !(\old(waterLevel) < 3)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || (pumpRunning == 0 && waterLevel < 3)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || waterLevel <= 0)) && (((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((pumpRunning == 0 && waterLevel <= 1) && waterLevel <= \old(waterLevel))) || !(methaneLevelCritical == 1)) || (((waterLevel <= 1 && waterLevel <= \old(waterLevel)) && tmp == 0) && pumpRunning == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || waterLevel <= \old(waterLevel))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || (((waterLevel <= 1 && waterLevel <= \old(waterLevel)) && tmp == 0) && pumpRunning == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || waterLevel <= 0) || !(methaneLevelCritical == 1)) [2022-11-20 20:51:21,868 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(waterLevel <= 1)) || pumpRunning == 1) && ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(waterLevel < 3))) && ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(waterLevel < 3))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(waterLevel <= 1)) || pumpRunning == 1) [2022-11-20 20:51:21,869 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) < 3)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && ((((!(1 == systemActive) || (((waterLevel + 1 <= \old(waterLevel) || waterLevel <= 0) && waterLevel <= \old(waterLevel)) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || ((((waterLevel + 1 <= \old(waterLevel) || waterLevel <= 0) && waterLevel <= \old(waterLevel)) && tmp == 0) && pumpRunning == 1)) || !(\old(waterLevel) < 3)) [2022-11-20 20:51:21,869 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || waterLevel <= \old(waterLevel)) && ((((!(1 == systemActive) || (((waterLevel <= 1 && methaneLevelCritical == tmp) && tmp == 0) && pumpRunning == 1)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3))) && (((((!(1 == systemActive) || ((pumpRunning == 0 && waterLevel <= 1) && methaneLevelCritical == tmp)) || (((waterLevel <= 1 && methaneLevelCritical == tmp) && tmp == 0) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || waterLevel <= \old(waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && methaneLevelCritical == tmp) && waterLevel < 3)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && waterLevel <= 1) && methaneLevelCritical == tmp)) || !(methaneLevelCritical == 0)) || (((2 <= waterLevel && methaneLevelCritical == tmp) && waterLevel <= \old(waterLevel)) && pumpRunning == 1)) || !(\old(waterLevel) < 3)) [2022-11-20 20:51:21,870 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((pumpRunning == \old(pumpRunning) && waterLevel <= 1) && methaneLevelCritical == tmp) && waterLevel == tmp___0) && waterLevel <= \old(waterLevel)) && tmp == 0) && pumpRunning == 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3)) && (((((!(1 == systemActive) || ((pumpRunning == 0 && waterLevel <= 1) && methaneLevelCritical == tmp)) || !(\old(pumpRunning) == 1)) || ((((pumpRunning == \old(pumpRunning) && waterLevel <= 1) && methaneLevelCritical == tmp) && tmp == 0) && pumpRunning == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || waterLevel <= 0)) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || waterLevel <= \old(waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && methaneLevelCritical == tmp) && waterLevel < 3)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || ((((2 <= waterLevel && methaneLevelCritical == tmp) && waterLevel == tmp___0) && waterLevel <= \old(waterLevel)) && pumpRunning == 1)) || ((((pumpRunning == 0 && waterLevel <= 1) && methaneLevelCritical == tmp) && waterLevel == tmp___0) && waterLevel <= \old(waterLevel))) || !(\old(waterLevel) < 3)) [2022-11-20 20:51:21,872 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || (((2 <= waterLevel && tmp == 1) && (pumpRunning == 0 || !(0 < waterLevel))) && aux-isMethaneAlarm()-aux == methaneLevelCritical)) || !(waterLevel < 3)) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(waterLevel <= 1))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(waterLevel <= 1))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(waterLevel < 3)) || ((tmp == 1 && (pumpRunning == 0 || !(0 < waterLevel))) && aux-isMethaneAlarm()-aux == methaneLevelCritical))) && (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(waterLevel <= 1)) [2022-11-20 20:51:21,872 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3)) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (((pumpRunning == 0 && methaneLevelCritical == tmp) && waterLevel == tmp___0) && tmp___0 <= 1)) || !(methaneLevelCritical == 0)) || ((((2 <= waterLevel && methaneLevelCritical == tmp) && waterLevel == tmp___0) && waterLevel <= \old(waterLevel)) && pumpRunning == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || waterLevel <= \old(waterLevel)) || !(\old(waterLevel) <= 0))) && ((((!(1 == systemActive) || ((((waterLevel <= 1 && methaneLevelCritical == tmp) && waterLevel == tmp___0) && tmp == 0) && pumpRunning == 1)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3)) [2022-11-20 20:51:21,873 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) < 3)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3)) [2022-11-20 20:51:21,932 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfa7824-e112-4ad1-a139-1014f0728e22/bin/utaipan-6cKwYrpEi9/witness.graphml [2022-11-20 20:51:21,935 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 20:51:21,935 INFO L158 Benchmark]: Toolchain (without parser) took 51056.23ms. Allocated memory was 197.1MB in the beginning and 627.0MB in the end (delta: 429.9MB). Free memory was 168.2MB in the beginning and 488.6MB in the end (delta: -320.5MB). Peak memory consumption was 111.8MB. Max. memory is 16.1GB. [2022-11-20 20:51:21,936 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 197.1MB. Free memory is still 165.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 20:51:21,936 INFO L158 Benchmark]: CACSL2BoogieTranslator took 623.31ms. Allocated memory is still 197.1MB. Free memory was 168.2MB in the beginning and 149.4MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 20:51:21,938 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.23ms. Allocated memory is still 197.1MB. Free memory was 149.4MB in the beginning and 147.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 20:51:21,939 INFO L158 Benchmark]: Boogie Preprocessor took 65.36ms. Allocated memory is still 197.1MB. Free memory was 147.4MB in the beginning and 145.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 20:51:21,939 INFO L158 Benchmark]: RCFGBuilder took 706.33ms. Allocated memory is still 197.1MB. Free memory was 145.9MB in the beginning and 120.1MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-20 20:51:21,940 INFO L158 Benchmark]: TraceAbstraction took 49467.44ms. Allocated memory was 197.1MB in the beginning and 627.0MB in the end (delta: 429.9MB). Free memory was 119.6MB in the beginning and 494.9MB in the end (delta: -375.4MB). Peak memory consumption was 334.4MB. Max. memory is 16.1GB. [2022-11-20 20:51:21,940 INFO L158 Benchmark]: Witness Printer took 132.53ms. Allocated memory is still 627.0MB. Free memory was 493.9MB in the beginning and 488.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-20 20:51:21,942 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 197.1MB. Free memory is still 165.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 623.31ms. Allocated memory is still 197.1MB. Free memory was 168.2MB in the beginning and 149.4MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.23ms. Allocated memory is still 197.1MB. Free memory was 149.4MB in the beginning and 147.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.36ms. Allocated memory is still 197.1MB. Free memory was 147.4MB in the beginning and 145.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 706.33ms. Allocated memory is still 197.1MB. Free memory was 145.9MB in the beginning and 120.1MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 49467.44ms. Allocated memory was 197.1MB in the beginning and 627.0MB in the end (delta: 429.9MB). Free memory was 119.6MB in the beginning and 494.9MB in the end (delta: -375.4MB). Peak memory consumption was 334.4MB. Max. memory is 16.1GB. * Witness Printer took 132.53ms. Allocated memory is still 627.0MB. Free memory was 493.9MB in the beginning and 488.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 590]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 64 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 49.4s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 11.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 12.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2718 SdHoareTripleChecker+Valid, 4.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2684 mSDsluCounter, 2541 SdHoareTripleChecker+Invalid, 3.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1946 mSDsCounter, 1685 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5673 IncrementalHoareTripleChecker+Invalid, 7358 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1685 mSolverCounterUnsat, 595 mSDtfsCounter, 5673 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 783 GetRequests, 426 SyntacticMatches, 15 SemanticMatches, 342 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14387 ImplicationChecksByTransitivity, 19.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=604occurred in iteration=7, InterpolantAutomatonStates: 236, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 454 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 37 LocationsWithAnnotation, 2029 PreInvPairs, 2542 NumberOfFragments, 2655 HoareAnnotationTreeSize, 2029 FomulaSimplifications, 17825 FormulaSimplificationTreeSizeReduction, 2.0s HoareSimplificationTime, 37 FomulaSimplificationsInter, 97376 FormulaSimplificationTreeSizeReductionInter, 10.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 599 NumberOfCodeBlocks, 599 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 722 ConstructedInterpolants, 0 QuantifiedInterpolants, 2355 SizeOfPredicates, 23 NumberOfNonLiveVariables, 922 ConjunctsInSsa, 72 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 174/253 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: (((((((((((((((pumpRunning == \old(pumpRunning) && waterLevel <= 1) && methaneLevelCritical == tmp) && waterLevel == tmp___0) && waterLevel <= \old(waterLevel)) && tmp == 0) && pumpRunning == 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3)) && (((((!(1 == systemActive) || ((pumpRunning == 0 && waterLevel <= 1) && methaneLevelCritical == tmp)) || !(\old(pumpRunning) == 1)) || ((((pumpRunning == \old(pumpRunning) && waterLevel <= 1) && methaneLevelCritical == tmp) && tmp == 0) && pumpRunning == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || waterLevel <= 0)) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || waterLevel <= \old(waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && methaneLevelCritical == tmp) && waterLevel < 3)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || ((((2 <= waterLevel && methaneLevelCritical == tmp) && waterLevel == tmp___0) && waterLevel <= \old(waterLevel)) && pumpRunning == 1)) || ((((pumpRunning == 0 && waterLevel <= 1) && methaneLevelCritical == tmp) && waterLevel == tmp___0) && waterLevel <= \old(waterLevel))) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 330]: Loop Invariant Derived loop invariant: ((((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(waterLevel <= 1)) || pumpRunning == 1) && ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(waterLevel < 3))) && ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(waterLevel < 3))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(waterLevel <= 1)) || pumpRunning == 1) - InvariantResult [Line: 496]: Loop Invariant Derived loop invariant: ((((((pumpRunning == 0 && 1 == systemActive) && methaneLevelCritical == 1) && splverifierCounter == 0) && waterLevel < 3) || ((((waterLevel <= 1 && 1 == systemActive) && methaneLevelCritical == 1) && splverifierCounter == 0) && pumpRunning == 1)) || ((((methaneLevelCritical == 0 && 1 == systemActive) && splverifierCounter == 0) && waterLevel < 3) && pumpRunning == 1)) || ((((pumpRunning == 0 && methaneLevelCritical == 0) && waterLevel <= 1) && 1 == systemActive) && splverifierCounter == 0) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: ((((((((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || waterLevel <= \old(waterLevel)) && ((((!(1 == systemActive) || (((waterLevel <= 1 && methaneLevelCritical == tmp) && tmp == 0) && pumpRunning == 1)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3))) && (((((!(1 == systemActive) || ((pumpRunning == 0 && waterLevel <= 1) && methaneLevelCritical == tmp)) || (((waterLevel <= 1 && methaneLevelCritical == tmp) && tmp == 0) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || waterLevel <= \old(waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && methaneLevelCritical == tmp) && waterLevel < 3)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && waterLevel <= 1) && methaneLevelCritical == tmp)) || !(methaneLevelCritical == 0)) || (((2 <= waterLevel && methaneLevelCritical == tmp) && waterLevel <= \old(waterLevel)) && pumpRunning == 1)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3)) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (((pumpRunning == 0 && methaneLevelCritical == tmp) && waterLevel == tmp___0) && tmp___0 <= 1)) || !(methaneLevelCritical == 0)) || ((((2 <= waterLevel && methaneLevelCritical == tmp) && waterLevel == tmp___0) && waterLevel <= \old(waterLevel)) && pumpRunning == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || waterLevel <= \old(waterLevel)) || !(\old(waterLevel) <= 0))) && ((((!(1 == systemActive) || ((((waterLevel <= 1 && methaneLevelCritical == tmp) && waterLevel == tmp___0) && tmp == 0) && pumpRunning == 1)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 486]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 294]: Loop Invariant Derived loop invariant: (((((((((pumpRunning == \old(pumpRunning) && 1 == systemActive) && waterLevel <= \old(waterLevel)) && pumpRunning == 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3)) && ((((((pumpRunning == \old(pumpRunning) && 1 == systemActive) && waterLevel <= \old(waterLevel)) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) < 3))) && ((((((pumpRunning == \old(pumpRunning) && 1 == systemActive) && waterLevel <= \old(waterLevel)) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && (((((((pumpRunning == \old(pumpRunning) && 1 == systemActive) && waterLevel <= \old(waterLevel)) && pumpRunning == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 495]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 189]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 275]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && waterLevel <= 1) && 1 == systemActive - InvariantResult [Line: 352]: Loop Invariant Derived loop invariant: ((((((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || ((pumpRunning == 0 && waterLevel <= 1) && waterLevel <= \old(waterLevel))) || ((2 <= waterLevel && waterLevel <= \old(waterLevel)) && pumpRunning == 1)) || !(\old(waterLevel) < 3)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || (pumpRunning == 0 && waterLevel < 3)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || waterLevel <= 0)) && (((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((pumpRunning == 0 && waterLevel <= 1) && waterLevel <= \old(waterLevel))) || !(methaneLevelCritical == 1)) || (((waterLevel <= 1 && waterLevel <= \old(waterLevel)) && tmp == 0) && pumpRunning == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || waterLevel <= \old(waterLevel))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || (((waterLevel <= 1 && waterLevel <= \old(waterLevel)) && tmp == 0) && pumpRunning == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || waterLevel <= 0) || !(methaneLevelCritical == 1)) - InvariantResult [Line: 590]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) < 3)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 275]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 199]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 360]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) < 3)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && ((((!(1 == systemActive) || (((waterLevel + 1 <= \old(waterLevel) || waterLevel <= 0) && waterLevel <= \old(waterLevel)) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || ((((waterLevel + 1 <= \old(waterLevel) || waterLevel <= 0) && waterLevel <= \old(waterLevel)) && tmp == 0) && pumpRunning == 1)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 390]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || (((2 <= waterLevel && tmp == 1) && (pumpRunning == 0 || !(0 < waterLevel))) && aux-isMethaneAlarm()-aux == methaneLevelCritical)) || !(waterLevel < 3)) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(waterLevel <= 1))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(waterLevel <= 1))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(waterLevel < 3)) || ((tmp == 1 && (pumpRunning == 0 || !(0 < waterLevel))) && aux-isMethaneAlarm()-aux == methaneLevelCritical))) && (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(waterLevel <= 1)) RESULT: Ultimate proved your program to be correct! [2022-11-20 20:51:21,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbfa7824-e112-4ad1-a139-1014f0728e22/bin/utaipan-6cKwYrpEi9/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