./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product45.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2157bf60-9e4c-437d-a4c5-2c2e5b8d7456/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2157bf60-9e4c-437d-a4c5-2c2e5b8d7456/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2157bf60-9e4c-437d-a4c5-2c2e5b8d7456/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2157bf60-9e4c-437d-a4c5-2c2e5b8d7456/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product45.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2157bf60-9e4c-437d-a4c5-2c2e5b8d7456/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2157bf60-9e4c-437d-a4c5-2c2e5b8d7456/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 603cfb64133b588a2e9c81e31ac984484d295feb0a468539180131e3ac5a47d6 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 15:56:54,881 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:56:54,883 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:56:54,918 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:56:54,919 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:56:54,923 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:56:54,925 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:56:54,929 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:56:54,931 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:56:54,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:56:54,938 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:56:54,939 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:56:54,939 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:56:54,940 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:56:54,941 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:56:54,942 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:56:54,943 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:56:54,944 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:56:54,945 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:56:54,953 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:56:54,955 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:56:54,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:56:54,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:56:54,961 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:56:54,973 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:56:54,973 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:56:54,973 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:56:54,974 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:56:54,975 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:56:54,976 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:56:54,976 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:56:54,977 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:56:54,978 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:56:54,979 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:56:54,980 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:56:54,980 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:56:54,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:56:54,981 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:56:54,982 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:56:54,984 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:56:54,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:56:54,987 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2157bf60-9e4c-437d-a4c5-2c2e5b8d7456/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 15:56:55,027 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:56:55,028 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:56:55,028 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:56:55,028 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:56:55,029 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:56:55,029 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:56:55,029 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:56:55,029 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:56:55,029 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:56:55,030 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:56:55,030 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:56:55,030 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:56:55,030 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:56:55,030 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:56:55,033 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:56:55,034 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:56:55,034 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:56:55,034 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:56:55,035 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:56:55,035 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:56:55,035 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:56:55,035 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:56:55,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:56:55,036 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:56:55,036 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:56:55,036 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:56:55,036 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:56:55,036 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:56:55,038 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:56:55,038 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:56:55,038 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:56:55,038 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:56:55,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:56:55,039 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:56:55,039 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:56:55,039 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:56:55,040 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:56:55,040 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:56:55,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:56:55,041 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:56:55,041 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:56:55,041 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_2157bf60-9e4c-437d-a4c5-2c2e5b8d7456/bin/utaipan-Q6hlc19bkW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2157bf60-9e4c-437d-a4c5-2c2e5b8d7456/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 603cfb64133b588a2e9c81e31ac984484d295feb0a468539180131e3ac5a47d6 [2022-11-23 15:56:55,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:56:55,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:56:55,342 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:56:55,344 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:56:55,344 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:56:55,346 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2157bf60-9e4c-437d-a4c5-2c2e5b8d7456/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/product-lines/minepump_spec5_product45.cil.c [2022-11-23 15:56:58,581 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:56:58,881 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:56:58,884 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2157bf60-9e4c-437d-a4c5-2c2e5b8d7456/sv-benchmarks/c/product-lines/minepump_spec5_product45.cil.c [2022-11-23 15:56:58,904 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2157bf60-9e4c-437d-a4c5-2c2e5b8d7456/bin/utaipan-Q6hlc19bkW/data/4aeaf3bc2/889d539266354bff892ae1cadc3fb4e4/FLAG77b76f6ce [2022-11-23 15:56:58,919 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2157bf60-9e4c-437d-a4c5-2c2e5b8d7456/bin/utaipan-Q6hlc19bkW/data/4aeaf3bc2/889d539266354bff892ae1cadc3fb4e4 [2022-11-23 15:56:58,922 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:56:58,923 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:56:58,927 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:56:58,927 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:56:58,931 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:56:58,932 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:56:58" (1/1) ... [2022-11-23 15:56:58,933 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8ed44a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:58, skipping insertion in model container [2022-11-23 15:56:58,934 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:56:58" (1/1) ... [2022-11-23 15:56:58,941 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:56:58,990 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:56:59,180 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_2157bf60-9e4c-437d-a4c5-2c2e5b8d7456/sv-benchmarks/c/product-lines/minepump_spec5_product45.cil.c[3064,3077] [2022-11-23 15:56:59,279 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:56:59,290 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:56:59,310 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_2157bf60-9e4c-437d-a4c5-2c2e5b8d7456/sv-benchmarks/c/product-lines/minepump_spec5_product45.cil.c[3064,3077] [2022-11-23 15:56:59,360 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:56:59,378 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:56:59,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:59 WrapperNode [2022-11-23 15:56:59,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:56:59,380 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:56:59,381 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:56:59,381 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:56:59,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:59" (1/1) ... [2022-11-23 15:56:59,418 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:59" (1/1) ... [2022-11-23 15:56:59,443 INFO L138 Inliner]: procedures = 56, calls = 102, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 208 [2022-11-23 15:56:59,444 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:56:59,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:56:59,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:56:59,445 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:56:59,454 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:59" (1/1) ... [2022-11-23 15:56:59,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:59" (1/1) ... [2022-11-23 15:56:59,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:59" (1/1) ... [2022-11-23 15:56:59,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:59" (1/1) ... [2022-11-23 15:56:59,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:59" (1/1) ... [2022-11-23 15:56:59,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:59" (1/1) ... [2022-11-23 15:56:59,469 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:59" (1/1) ... [2022-11-23 15:56:59,471 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:59" (1/1) ... [2022-11-23 15:56:59,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:56:59,474 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:56:59,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:56:59,475 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:56:59,476 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:59" (1/1) ... [2022-11-23 15:56:59,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:56:59,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2157bf60-9e4c-437d-a4c5-2c2e5b8d7456/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:56:59,540 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2157bf60-9e4c-437d-a4c5-2c2e5b8d7456/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:56:59,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2157bf60-9e4c-437d-a4c5-2c2e5b8d7456/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:56:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:56:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-23 15:56:59,588 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-23 15:56:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-23 15:56:59,589 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-23 15:56:59,589 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-23 15:56:59,589 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-23 15:56:59,589 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-23 15:56:59,589 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-23 15:56:59,589 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-11-23 15:56:59,590 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-11-23 15:56:59,590 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2022-11-23 15:56:59,590 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2022-11-23 15:56:59,590 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-11-23 15:56:59,590 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-11-23 15:56:59,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:56:59,591 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-23 15:56:59,591 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-23 15:56:59,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:56:59,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:56:59,679 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:56:59,681 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:57:00,050 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:57:00,209 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:57:00,209 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 15:57:00,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:57:00 BoogieIcfgContainer [2022-11-23 15:57:00,212 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:57:00,215 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:57:00,215 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:57:00,246 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:57:00,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:56:58" (1/3) ... [2022-11-23 15:57:00,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49e2eb6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:57:00, skipping insertion in model container [2022-11-23 15:57:00,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:59" (2/3) ... [2022-11-23 15:57:00,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49e2eb6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:57:00, skipping insertion in model container [2022-11-23 15:57:00,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:57:00" (3/3) ... [2022-11-23 15:57:00,253 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product45.cil.c [2022-11-23 15:57:00,272 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:57:00,272 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:57:00,349 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:57:00,362 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;@58209b09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:57:00,363 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:57:00,367 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 40 states have (on average 1.4) internal successors, (56), 48 states have internal predecessors, (56), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-23 15:57:00,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 15:57:00,383 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:57:00,384 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:57:00,387 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:57:00,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:57:00,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1911075339, now seen corresponding path program 1 times [2022-11-23 15:57:00,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:57:00,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986702186] [2022-11-23 15:57:00,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:57:00,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:57:00,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:57:00,656 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:57:00,657 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:57:00,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986702186] [2022-11-23 15:57:00,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986702186] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:57:00,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:57:00,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:57:00,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253355863] [2022-11-23 15:57:00,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:57:00,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 15:57:00,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:57:00,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 15:57:00,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:57:00,722 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 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 15:57:00,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:57:00,850 INFO L93 Difference]: Finished difference Result 126 states and 169 transitions. [2022-11-23 15:57:00,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 15:57:00,854 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2022-11-23 15:57:00,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:57:00,866 INFO L225 Difference]: With dead ends: 126 [2022-11-23 15:57:00,867 INFO L226 Difference]: Without dead ends: 59 [2022-11-23 15:57:00,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:57:00,876 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:57:00,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:57:00,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-23 15:57:00,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-11-23 15:57:00,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 44 states have internal predecessors, (48), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-23 15:57:00,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 75 transitions. [2022-11-23 15:57:00,919 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 75 transitions. Word has length 21 [2022-11-23 15:57:00,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:57:00,919 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 75 transitions. [2022-11-23 15:57:00,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 15:57:00,920 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 75 transitions. [2022-11-23 15:57:00,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-23 15:57:00,922 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:57:00,922 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] [2022-11-23 15:57:00,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:57:00,923 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:57:00,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:57:00,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1425674059, now seen corresponding path program 1 times [2022-11-23 15:57:00,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:57:00,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438466137] [2022-11-23 15:57:00,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:57:00,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:57:00,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:57:01,069 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:57:01,069 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:57:01,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438466137] [2022-11-23 15:57:01,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438466137] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:57:01,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:57:01,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:57:01,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728776793] [2022-11-23 15:57:01,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:57:01,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:57:01,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:57:01,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:57:01,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:57:01,079 INFO L87 Difference]: Start difference. First operand 59 states and 75 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:57:01,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:57:01,133 INFO L93 Difference]: Finished difference Result 116 states and 151 transitions. [2022-11-23 15:57:01,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:57:01,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2022-11-23 15:57:01,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:57:01,135 INFO L225 Difference]: With dead ends: 116 [2022-11-23 15:57:01,136 INFO L226 Difference]: Without dead ends: 59 [2022-11-23 15:57:01,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:57:01,138 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 62 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 58 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 [2022-11-23 15:57:01,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 58 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:57:01,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-23 15:57:01,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-11-23 15:57:01,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 37 states have (on average 1.2702702702702702) internal successors, (47), 44 states have internal predecessors, (47), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-23 15:57:01,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 74 transitions. [2022-11-23 15:57:01,156 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 74 transitions. Word has length 24 [2022-11-23 15:57:01,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:57:01,157 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 74 transitions. [2022-11-23 15:57:01,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:57:01,158 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 74 transitions. [2022-11-23 15:57:01,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 15:57:01,161 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:57:01,162 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] [2022-11-23 15:57:01,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:57:01,162 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:57:01,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:57:01,163 INFO L85 PathProgramCache]: Analyzing trace with hash 149706667, now seen corresponding path program 1 times [2022-11-23 15:57:01,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:57:01,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394132828] [2022-11-23 15:57:01,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:57:01,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:57:01,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:57:01,324 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:57:01,324 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:57:01,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394132828] [2022-11-23 15:57:01,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394132828] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:57:01,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:57:01,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 15:57:01,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373361740] [2022-11-23 15:57:01,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:57:01,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:57:01,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:57:01,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:57:01,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:57:01,327 INFO L87 Difference]: Start difference. First operand 59 states and 74 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-23 15:57:01,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:57:01,613 INFO L93 Difference]: Finished difference Result 164 states and 226 transitions. [2022-11-23 15:57:01,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 15:57:01,614 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2022-11-23 15:57:01,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:57:01,618 INFO L225 Difference]: With dead ends: 164 [2022-11-23 15:57:01,619 INFO L226 Difference]: Without dead ends: 107 [2022-11-23 15:57:01,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-23 15:57:01,630 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 57 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:57:01,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 339 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:57:01,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-11-23 15:57:01,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 103. [2022-11-23 15:57:01,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 66 states have (on average 1.2121212121212122) internal successors, (80), 73 states have internal predecessors, (80), 22 states have call successors, (22), 16 states have call predecessors, (22), 14 states have return successors, (28), 20 states have call predecessors, (28), 20 states have call successors, (28) [2022-11-23 15:57:01,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 130 transitions. [2022-11-23 15:57:01,682 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 130 transitions. Word has length 31 [2022-11-23 15:57:01,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:57:01,682 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 130 transitions. [2022-11-23 15:57:01,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-23 15:57:01,683 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 130 transitions. [2022-11-23 15:57:01,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-23 15:57:01,684 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:57:01,684 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] [2022-11-23 15:57:01,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:57:01,685 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:57:01,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:57:01,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1933905367, now seen corresponding path program 1 times [2022-11-23 15:57:01,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:57:01,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901974026] [2022-11-23 15:57:01,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:57:01,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:57:01,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:57:01,799 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:57:01,799 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:57:01,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901974026] [2022-11-23 15:57:01,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901974026] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:57:01,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:57:01,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:57:01,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954857666] [2022-11-23 15:57:01,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:57:01,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:57:01,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:57:01,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:57:01,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:57:01,803 INFO L87 Difference]: Start difference. First operand 103 states and 130 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-23 15:57:01,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:57:01,844 INFO L93 Difference]: Finished difference Result 162 states and 198 transitions. [2022-11-23 15:57:01,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:57:01,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 34 [2022-11-23 15:57:01,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:57:01,846 INFO L225 Difference]: With dead ends: 162 [2022-11-23 15:57:01,847 INFO L226 Difference]: Without dead ends: 87 [2022-11-23 15:57:01,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:57:01,849 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 7 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:57:01,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 89 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:57:01,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-11-23 15:57:01,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2022-11-23 15:57:01,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 56 states have (on average 1.2142857142857142) internal successors, (68), 63 states have internal predecessors, (68), 16 states have call successors, (16), 14 states have call predecessors, (16), 14 states have return successors, (20), 16 states have call predecessors, (20), 16 states have call successors, (20) [2022-11-23 15:57:01,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 104 transitions. [2022-11-23 15:57:01,866 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 104 transitions. Word has length 34 [2022-11-23 15:57:01,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:57:01,866 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 104 transitions. [2022-11-23 15:57:01,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-23 15:57:01,867 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 104 transitions. [2022-11-23 15:57:01,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-23 15:57:01,868 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:57:01,868 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] [2022-11-23 15:57:01,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:57:01,869 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:57:01,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:57:01,869 INFO L85 PathProgramCache]: Analyzing trace with hash 2003657004, now seen corresponding path program 1 times [2022-11-23 15:57:01,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:57:01,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241859657] [2022-11-23 15:57:01,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:57:01,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:57:01,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:57:02,247 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:57:02,251 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:57:02,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241859657] [2022-11-23 15:57:02,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241859657] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:57:02,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:57:02,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 15:57:02,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576470286] [2022-11-23 15:57:02,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:57:02,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 15:57:02,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:57:02,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 15:57:02,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:57:02,256 INFO L87 Difference]: Start difference. First operand 87 states and 104 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 15:57:02,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:57:02,741 INFO L93 Difference]: Finished difference Result 301 states and 372 transitions. [2022-11-23 15:57:02,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 15:57:02,742 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 36 [2022-11-23 15:57:02,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:57:02,744 INFO L225 Difference]: With dead ends: 301 [2022-11-23 15:57:02,745 INFO L226 Difference]: Without dead ends: 216 [2022-11-23 15:57:02,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-23 15:57:02,746 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 169 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:57:02,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 426 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 15:57:02,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-11-23 15:57:02,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 208. [2022-11-23 15:57:02,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 135 states have (on average 1.1925925925925926) internal successors, (161), 147 states have internal predecessors, (161), 39 states have call successors, (39), 34 states have call predecessors, (39), 33 states have return successors, (51), 36 states have call predecessors, (51), 39 states have call successors, (51) [2022-11-23 15:57:02,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 251 transitions. [2022-11-23 15:57:02,781 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 251 transitions. Word has length 36 [2022-11-23 15:57:02,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:57:02,782 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 251 transitions. [2022-11-23 15:57:02,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 15:57:02,782 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 251 transitions. [2022-11-23 15:57:02,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-23 15:57:02,784 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:57:02,784 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:57:02,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:57:02,784 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:57:02,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:57:02,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1526016149, now seen corresponding path program 1 times [2022-11-23 15:57:02,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:57:02,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512935919] [2022-11-23 15:57:02,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:57:02,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:57:02,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:57:02,967 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:57:02,967 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:57:02,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512935919] [2022-11-23 15:57:02,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512935919] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:57:02,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:57:02,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 15:57:02,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054971486] [2022-11-23 15:57:02,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:57:02,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 15:57:02,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:57:02,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 15:57:02,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:57:02,970 INFO L87 Difference]: Start difference. First operand 208 states and 251 transitions. Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-23 15:57:03,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:57:03,612 INFO L93 Difference]: Finished difference Result 556 states and 709 transitions. [2022-11-23 15:57:03,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-23 15:57:03,612 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 39 [2022-11-23 15:57:03,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:57:03,616 INFO L225 Difference]: With dead ends: 556 [2022-11-23 15:57:03,616 INFO L226 Difference]: Without dead ends: 384 [2022-11-23 15:57:03,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2022-11-23 15:57:03,618 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 201 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:57:03,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 264 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 15:57:03,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2022-11-23 15:57:03,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 339. [2022-11-23 15:57:03,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 221 states have (on average 1.1809954751131222) internal successors, (261), 243 states have internal predecessors, (261), 62 states have call successors, (62), 52 states have call predecessors, (62), 55 states have return successors, (86), 58 states have call predecessors, (86), 62 states have call successors, (86) [2022-11-23 15:57:03,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 409 transitions. [2022-11-23 15:57:03,672 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 409 transitions. Word has length 39 [2022-11-23 15:57:03,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:57:03,673 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 409 transitions. [2022-11-23 15:57:03,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-23 15:57:03,673 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 409 transitions. [2022-11-23 15:57:03,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-23 15:57:03,676 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:57:03,676 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:57:03,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 15:57:03,677 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:57:03,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:57:03,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1605835483, now seen corresponding path program 1 times [2022-11-23 15:57:03,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:57:03,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210066315] [2022-11-23 15:57:03,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:57:03,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:57:03,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:57:03,850 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 15:57:03,851 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:57:03,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210066315] [2022-11-23 15:57:03,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210066315] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:57:03,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:57:03,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 15:57:03,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203770359] [2022-11-23 15:57:03,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:57:03,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 15:57:03,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:57:03,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 15:57:03,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-23 15:57:03,854 INFO L87 Difference]: Start difference. First operand 339 states and 409 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 4 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2022-11-23 15:57:04,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:57:04,083 INFO L93 Difference]: Finished difference Result 692 states and 837 transitions. [2022-11-23 15:57:04,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 15:57:04,084 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 4 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) Word has length 67 [2022-11-23 15:57:04,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:57:04,086 INFO L225 Difference]: With dead ends: 692 [2022-11-23 15:57:04,087 INFO L226 Difference]: Without dead ends: 367 [2022-11-23 15:57:04,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-23 15:57:04,091 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 76 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:57:04,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 125 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:57:04,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2022-11-23 15:57:04,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 348. [2022-11-23 15:57:04,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 230 states have (on average 1.1695652173913043) internal successors, (269), 250 states have internal predecessors, (269), 60 states have call successors, (60), 50 states have call predecessors, (60), 57 states have return successors, (87), 60 states have call predecessors, (87), 60 states have call successors, (87) [2022-11-23 15:57:04,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 416 transitions. [2022-11-23 15:57:04,166 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 416 transitions. Word has length 67 [2022-11-23 15:57:04,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:57:04,167 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 416 transitions. [2022-11-23 15:57:04,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 4 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2022-11-23 15:57:04,167 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 416 transitions. [2022-11-23 15:57:04,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-23 15:57:04,170 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:57:04,170 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:57:04,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 15:57:04,170 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:57:04,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:57:04,171 INFO L85 PathProgramCache]: Analyzing trace with hash -223573989, now seen corresponding path program 1 times [2022-11-23 15:57:04,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:57:04,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212574629] [2022-11-23 15:57:04,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:57:04,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:57:04,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:57:04,449 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-23 15:57:04,449 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:57:04,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212574629] [2022-11-23 15:57:04,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212574629] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:57:04,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1892247715] [2022-11-23 15:57:04,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:57:04,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:57:04,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2157bf60-9e4c-437d-a4c5-2c2e5b8d7456/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:57:04,463 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2157bf60-9e4c-437d-a4c5-2c2e5b8d7456/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:57:04,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2157bf60-9e4c-437d-a4c5-2c2e5b8d7456/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 15:57:04,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:57:04,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-23 15:57:04,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:57:04,733 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-23 15:57:04,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:57:04,922 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-23 15:57:04,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1892247715] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:57:04,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [823662959] [2022-11-23 15:57:04,943 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2022-11-23 15:57:04,944 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:57:04,948 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:57:04,954 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:57:04,954 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:57:09,334 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 141 for LOIs [2022-11-23 15:57:09,360 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 34 for LOIs [2022-11-23 15:57:09,895 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 53 for LOIs [2022-11-23 15:57:09,907 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 34 for LOIs [2022-11-23 15:57:10,131 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 60 for LOIs [2022-11-23 15:57:10,145 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 32 for LOIs [2022-11-23 15:57:10,147 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:57:18,404 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5671#(and (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 0)) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1|) (= ~methaneLevelCritical~0 0) (= |timeShift_getWaterLevel_~retValue_acc~1#1| ~waterLevel~0) (<= 0 (+ 2147483648 |old(~pumpRunning~0)|)) (= ~head~0.offset 0) (<= |old(~switchedOnBeforeTS~0)| 2147483647) (<= |old(~pumpRunning~0)| 2147483647) (= 1 ~systemActive~0) (= |timeShift_getWaterLevel_~retValue_acc~1#1| |timeShift_getWaterLevel_#res#1|) (<= 0 (+ |old(~switchedOnBeforeTS~0)| 2147483648)) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 2147483648)) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 2147483647) (= ~head~0.base 0) (<= 0 (+ |timeShift_getWaterLevel_~retValue_acc~1#1| 2147483648)) (= |#NULL.offset| 0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~3#1| 2)) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~3#1| |timeShift_getWaterLevel_#res#1|) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (<= |timeShift_getWaterLevel_~retValue_acc~1#1| 2147483647) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-23 15:57:18,404 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:57:18,404 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:57:18,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 6] total 15 [2022-11-23 15:57:18,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401048813] [2022-11-23 15:57:18,405 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 15:57:18,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-23 15:57:18,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:57:18,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-23 15:57:18,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=345, Invalid=2105, Unknown=0, NotChecked=0, Total=2450 [2022-11-23 15:57:18,407 INFO L87 Difference]: Start difference. First operand 348 states and 416 transitions. Second operand has 15 states, 12 states have (on average 5.75) internal successors, (69), 13 states have internal predecessors, (69), 5 states have call successors, (17), 3 states have call predecessors, (17), 6 states have return successors, (20), 7 states have call predecessors, (20), 5 states have call successors, (20) [2022-11-23 15:57:19,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:57:19,832 INFO L93 Difference]: Finished difference Result 632 states and 785 transitions. [2022-11-23 15:57:19,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-23 15:57:19,833 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 5.75) internal successors, (69), 13 states have internal predecessors, (69), 5 states have call successors, (17), 3 states have call predecessors, (17), 6 states have return successors, (20), 7 states have call predecessors, (20), 5 states have call successors, (20) Word has length 71 [2022-11-23 15:57:19,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:57:19,835 INFO L225 Difference]: With dead ends: 632 [2022-11-23 15:57:19,836 INFO L226 Difference]: Without dead ends: 339 [2022-11-23 15:57:19,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 184 SyntacticMatches, 5 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1916 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=704, Invalid=4552, Unknown=0, NotChecked=0, Total=5256 [2022-11-23 15:57:19,839 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 581 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 432 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 581 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 432 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:57:19,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [581 Valid, 308 Invalid, 968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [432 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 15:57:19,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-11-23 15:57:19,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 309. [2022-11-23 15:57:19,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 200 states have (on average 1.175) internal successors, (235), 221 states have internal predecessors, (235), 57 states have call successors, (57), 49 states have call predecessors, (57), 51 states have return successors, (79), 53 states have call predecessors, (79), 57 states have call successors, (79) [2022-11-23 15:57:19,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 371 transitions. [2022-11-23 15:57:19,897 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 371 transitions. Word has length 71 [2022-11-23 15:57:19,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:57:19,899 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 371 transitions. [2022-11-23 15:57:19,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 5.75) internal successors, (69), 13 states have internal predecessors, (69), 5 states have call successors, (17), 3 states have call predecessors, (17), 6 states have return successors, (20), 7 states have call predecessors, (20), 5 states have call successors, (20) [2022-11-23 15:57:19,899 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 371 transitions. [2022-11-23 15:57:19,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-23 15:57:19,901 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:57:19,901 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-23 15:57:19,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2157bf60-9e4c-437d-a4c5-2c2e5b8d7456/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 15:57:20,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2157bf60-9e4c-437d-a4c5-2c2e5b8d7456/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-23 15:57:20,107 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:57:20,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:57:20,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1554175055, now seen corresponding path program 1 times [2022-11-23 15:57:20,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:57:20,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905273590] [2022-11-23 15:57:20,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:57:20,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:57:20,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:57:20,483 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-23 15:57:20,484 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:57:20,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905273590] [2022-11-23 15:57:20,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905273590] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:57:20,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350489425] [2022-11-23 15:57:20,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:57:20,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:57:20,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2157bf60-9e4c-437d-a4c5-2c2e5b8d7456/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:57:20,486 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2157bf60-9e4c-437d-a4c5-2c2e5b8d7456/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:57:20,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2157bf60-9e4c-437d-a4c5-2c2e5b8d7456/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 15:57:20,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:57:20,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-23 15:57:20,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:57:21,135 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 9 proven. 25 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:57:21,135 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:57:21,841 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 15:57:21,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1350489425] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:57:21,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [589108158] [2022-11-23 15:57:21,844 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-11-23 15:57:21,845 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:57:21,845 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:57:21,845 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:57:21,846 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:57:25,162 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 143 for LOIs [2022-11-23 15:57:25,187 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 31 for LOIs [2022-11-23 15:57:25,337 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 58 for LOIs [2022-11-23 15:57:25,350 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 26 for LOIs [2022-11-23 15:57:25,586 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 29 for LOIs [2022-11-23 15:57:25,589 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 28 for LOIs [2022-11-23 15:57:25,591 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:57:32,157 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7654#(and (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 0)) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 1) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1|) (= ~methaneLevelCritical~0 0) (= |timeShift_getWaterLevel_~retValue_acc~1#1| ~waterLevel~0) (= ~head~0.offset 0) (= 1 ~systemActive~0) (= |old(~pumpRunning~0)| 0) (= |timeShift_getWaterLevel_~retValue_acc~1#1| |timeShift_getWaterLevel_#res#1|) (<= 0 ~pumpRunning~0) (= ~head~0.base 0) (<= 0 (+ |timeShift_getWaterLevel_~retValue_acc~1#1| 2147483648)) (= |#NULL.offset| 0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~3#1| 2)) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~3#1| |timeShift_getWaterLevel_#res#1|) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (<= |timeShift_getWaterLevel_~retValue_acc~1#1| 2147483647) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0) (= |old(~switchedOnBeforeTS~0)| 0))' at error location [2022-11-23 15:57:32,158 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:57:32,158 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:57:32,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 14] total 32 [2022-11-23 15:57:32,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068447283] [2022-11-23 15:57:32,158 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 15:57:32,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-23 15:57:32,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:57:32,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-23 15:57:32,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=487, Invalid=3419, Unknown=0, NotChecked=0, Total=3906 [2022-11-23 15:57:32,161 INFO L87 Difference]: Start difference. First operand 309 states and 371 transitions. Second operand has 32 states, 30 states have (on average 4.033333333333333) internal successors, (121), 30 states have internal predecessors, (121), 18 states have call successors, (31), 13 states have call predecessors, (31), 13 states have return successors, (29), 15 states have call predecessors, (29), 18 states have call successors, (29) [2022-11-23 15:57:35,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:57:35,096 INFO L93 Difference]: Finished difference Result 773 states and 968 transitions. [2022-11-23 15:57:35,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-23 15:57:35,097 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 30 states have (on average 4.033333333333333) internal successors, (121), 30 states have internal predecessors, (121), 18 states have call successors, (31), 13 states have call predecessors, (31), 13 states have return successors, (29), 15 states have call predecessors, (29), 18 states have call successors, (29) Word has length 72 [2022-11-23 15:57:35,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:57:35,098 INFO L225 Difference]: With dead ends: 773 [2022-11-23 15:57:35,098 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 15:57:35,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 169 SyntacticMatches, 9 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4022 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=1633, Invalid=9287, Unknown=0, NotChecked=0, Total=10920 [2022-11-23 15:57:35,118 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 925 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 1024 mSolverCounterSat, 689 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 1713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 689 IncrementalHoareTripleChecker+Valid, 1024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:57:35,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 435 Invalid, 1713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [689 Valid, 1024 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-23 15:57:35,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 15:57:35,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 15:57:35,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:57:35,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 15:57:35,120 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 72 [2022-11-23 15:57:35,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:57:35,120 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 15:57:35,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 30 states have (on average 4.033333333333333) internal successors, (121), 30 states have internal predecessors, (121), 18 states have call successors, (31), 13 states have call predecessors, (31), 13 states have return successors, (29), 15 states have call predecessors, (29), 18 states have call successors, (29) [2022-11-23 15:57:35,121 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 15:57:35,121 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 15:57:35,124 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 15:57:35,130 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2157bf60-9e4c-437d-a4c5-2c2e5b8d7456/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-23 15:57:35,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2157bf60-9e4c-437d-a4c5-2c2e5b8d7456/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:57:35,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 15:57:40,457 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 610 616) no Hoare annotation was computed. [2022-11-23 15:57:40,458 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 610 616) the Hoare annotation is: true [2022-11-23 15:57:40,458 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 83 94) the Hoare annotation is: true [2022-11-23 15:57:40,458 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 83 94) no Hoare annotation was computed. [2022-11-23 15:57:40,458 INFO L899 garLoopResultBuilder]: For program point L897(lines 897 901) no Hoare annotation was computed. [2022-11-23 15:57:40,458 INFO L902 garLoopResultBuilder]: At program point L897-1(lines 897 901) the Hoare annotation is: true [2022-11-23 15:57:40,458 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 883 912) no Hoare annotation was computed. [2022-11-23 15:57:40,459 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 883 912) the Hoare annotation is: true [2022-11-23 15:57:40,459 INFO L902 garLoopResultBuilder]: At program point L893-2(lines 893 907) the Hoare annotation is: true [2022-11-23 15:57:40,459 INFO L902 garLoopResultBuilder]: At program point L889(line 889) the Hoare annotation is: true [2022-11-23 15:57:40,459 INFO L899 garLoopResultBuilder]: For program point L889-1(line 889) no Hoare annotation was computed. [2022-11-23 15:57:40,459 INFO L902 garLoopResultBuilder]: At program point L908(lines 883 912) the Hoare annotation is: true [2022-11-23 15:57:40,459 INFO L899 garLoopResultBuilder]: For program point L904(line 904) no Hoare annotation was computed. [2022-11-23 15:57:40,460 INFO L895 garLoopResultBuilder]: At program point L155(line 155) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 2))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (< |old(~waterLevel~0)| 3))))) [2022-11-23 15:57:40,460 INFO L895 garLoopResultBuilder]: At program point L663(line 663) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse6 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or (and .cse0 .cse1) .cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse3 .cse4 .cse5) (not (= |old(~waterLevel~0)| 2))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse6 .cse2 .cse1) (or .cse6 .cse0 .cse2 (and .cse3 .cse4 .cse5)))) [2022-11-23 15:57:40,460 INFO L895 garLoopResultBuilder]: At program point L663-1(lines 644 668) the Hoare annotation is: (let ((.cse11 (= 1 ~systemActive~0)) (.cse8 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (= ~pumpRunning~0 0)) (.cse5 (= ~pumpRunning~0 1))) (let ((.cse1 (and (= 2 ~waterLevel~0) .cse11 .cse8 (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse5) (or .cse7 .cse5))) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse0 (not .cse11)) (.cse6 (not (= ~switchedOnBeforeTS~0 0))) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse9 (not (< |old(~waterLevel~0)| 3)))) (and (let ((.cse3 (or .cse8 (= ~waterLevel~0 1)))) (or .cse0 .cse1 .cse2 (not (= |old(~waterLevel~0)| 2)) (and .cse3 .cse4 .cse5) (and .cse6 .cse7 (<= ~waterLevel~0 1) .cse3))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (and .cse7 .cse8 .cse4) .cse1 .cse9) (let ((.cse10 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (and (or (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) (and (not (< 0 ~waterLevel~0)) .cse10)) .cse4 .cse5) .cse0 (and .cse6 .cse7 .cse10) .cse2 .cse9))))) [2022-11-23 15:57:40,461 INFO L895 garLoopResultBuilder]: At program point L597-1(lines 597 603) the Hoare annotation is: (let ((.cse11 (= 1 ~systemActive~0)) (.cse8 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (= ~pumpRunning~0 0)) (.cse5 (= ~pumpRunning~0 1))) (let ((.cse1 (and (= 2 ~waterLevel~0) .cse11 .cse8 (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse5) (or .cse7 .cse5))) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse0 (not .cse11)) (.cse6 (not (= ~switchedOnBeforeTS~0 0))) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse9 (not (< |old(~waterLevel~0)| 3)))) (and (let ((.cse3 (or .cse8 (= ~waterLevel~0 1)))) (or .cse0 .cse1 .cse2 (not (= |old(~waterLevel~0)| 2)) (and .cse3 .cse4 .cse5) (and .cse6 .cse7 (<= ~waterLevel~0 1) .cse3))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (and .cse7 .cse8 .cse4) .cse1 .cse9) (let ((.cse10 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (and (or (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) (and (not (< 0 ~waterLevel~0)) .cse10)) .cse4 .cse5) .cse0 (and .cse6 .cse7 .cse10) .cse2 .cse9))))) [2022-11-23 15:57:40,461 INFO L895 garLoopResultBuilder]: At program point L556(line 556) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (= |old(~waterLevel~0)| 2))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse10 (= ~pumpRunning~0 1)) (.cse1 (not (= 1 ~systemActive~0))) (.cse7 (not (= ~switchedOnBeforeTS~0 0))) (.cse2 (= ~pumpRunning~0 0)) (.cse6 (not (= |old(~pumpRunning~0)| 1)))) (and (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 (and .cse2 .cse3 .cse4 (= |old(~waterLevel~0)| |timeShift___utac_acc__Specification5_spec__3_~tmp~3#1|))) (or .cse0 .cse1 .cse5) (let ((.cse8 (<= ~waterLevel~0 1)) (.cse9 (or .cse3 (= ~waterLevel~0 1)))) (or .cse1 .cse6 .cse5 (and .cse7 .cse2 .cse8 .cse9) (and .cse8 .cse9 .cse4 .cse10))) (let ((.cse11 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (and (or (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) (and (not (< 0 ~waterLevel~0)) .cse11)) .cse4 .cse10) .cse1 (and .cse7 .cse2 .cse11) .cse6 (not (< |old(~waterLevel~0)| 3)))))) [2022-11-23 15:57:40,461 INFO L899 garLoopResultBuilder]: For program point L556-1(line 556) no Hoare annotation was computed. [2022-11-23 15:57:40,461 INFO L899 garLoopResultBuilder]: For program point L590-2(lines 586 608) no Hoare annotation was computed. [2022-11-23 15:57:40,462 INFO L895 garLoopResultBuilder]: At program point L652(lines 652 660) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 (and (not (< 0 ~waterLevel~0)) (<= ~waterLevel~0 |old(~waterLevel~0)|) .cse2 .cse3)) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (< |old(~waterLevel~0)| 3))) (or .cse0 .cse1 (and (= ~waterLevel~0 1) .cse2 .cse3) (not (= |old(~waterLevel~0)| 2))))) [2022-11-23 15:57:40,462 INFO L899 garLoopResultBuilder]: For program point L648(lines 648 665) no Hoare annotation was computed. [2022-11-23 15:57:40,462 INFO L895 garLoopResultBuilder]: At program point L541(line 541) the Hoare annotation is: (let ((.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse5 (not (<= |old(~waterLevel~0)| 1))) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse9 (not (= ~switchedOnBeforeTS~0 0))) (.cse7 (= ~pumpRunning~0 0)) (.cse8 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse10 (= |old(~switchedOnBeforeTS~0)| 0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse6 .cse1 (and .cse7 .cse8 .cse4)) (or .cse9 .cse6 .cse1 .cse3 .cse10) (or (and .cse6 .cse2) .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse8) .cse3) (or .cse0 .cse6 .cse1 .cse3 .cse4) (or .cse0 .cse5 (and .cse8 .cse4 (= ~pumpRunning~0 1)) .cse1 .cse2) (or .cse5 .cse6 .cse1 (and .cse9 .cse7 .cse8) .cse10))) [2022-11-23 15:57:40,463 INFO L895 garLoopResultBuilder]: At program point L541-1(line 541) the Hoare annotation is: (let ((.cse6 (not (= |old(~pumpRunning~0)| 1))) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse7 (not (= |old(~waterLevel~0)| 2))) (.cse3 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse4 (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__2_#t~ret32#1|)) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 1)) .cse2 .cse3) (or .cse0 (and .cse4 .cse5 .cse3 (= ~pumpRunning~0 1)) .cse2 .cse6 (not (< |old(~waterLevel~0)| 3))) (or (and .cse1 .cse6) .cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse4 .cse5) .cse7) (or .cse0 .cse1 .cse2 .cse7 .cse3) (or (not (<= |old(~waterLevel~0)| 1)) .cse1 .cse2 (and (= ~pumpRunning~0 0) .cse4 .cse5)))) [2022-11-23 15:57:40,463 INFO L899 garLoopResultBuilder]: For program point L558(lines 558 568) no Hoare annotation was computed. [2022-11-23 15:57:40,463 INFO L899 garLoopResultBuilder]: For program point L554(lines 554 571) no Hoare annotation was computed. [2022-11-23 15:57:40,463 INFO L895 garLoopResultBuilder]: At program point L554-1(lines 546 574) the Hoare annotation is: (let ((.cse13 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse11 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse12 (= ~pumpRunning~0 1)) (.cse7 (not (= ~switchedOnBeforeTS~0 0))) (.cse8 (= ~pumpRunning~0 0)) (.cse14 (<= ~waterLevel~0 1)) (.cse9 (= 1 ~systemActive~0)) (.cse15 (or .cse13 (= ~waterLevel~0 1)))) (let ((.cse1 (and .cse7 .cse8 .cse14 .cse9 .cse15)) (.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse5 (and .cse14 .cse15 .cse11 .cse12)) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse3 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not .cse9)) (.cse6 (and (= |timeShift___utac_acc__Specification5_spec__3_~tmp~3#1| 2) (= 2 ~waterLevel~0) .cse9 .cse13 (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse12) (or .cse8 .cse12)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse1 .cse2 .cse6 .cse3 .cse4 .cse5) (let ((.cse10 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (or .cse0 (not (<= |old(~waterLevel~0)| 1)) .cse2 (and .cse7 .cse8 .cse9 .cse10) .cse3 (and (not (< 0 ~waterLevel~0)) .cse10 .cse11 .cse12))) (or (not (= |old(~pumpRunning~0)| 0)) .cse2 .cse6 (and .cse8 .cse9 .cse13 .cse11 (= |old(~waterLevel~0)| |timeShift___utac_acc__Specification5_spec__3_~tmp~3#1|)) (not (< |old(~waterLevel~0)| 3))))))) [2022-11-23 15:57:40,463 INFO L895 garLoopResultBuilder]: At program point L658(line 658) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 (and (not (< 0 ~waterLevel~0)) (<= ~waterLevel~0 |old(~waterLevel~0)|) .cse2 .cse3)) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (< |old(~waterLevel~0)| 3))) (or .cse0 .cse1 (and (= ~waterLevel~0 1) .cse2 .cse3) (not (= |old(~waterLevel~0)| 2))))) [2022-11-23 15:57:40,464 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 583 609) the Hoare annotation is: (let ((.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse5 (not (<= |old(~waterLevel~0)| 1))) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse9 (not (= ~switchedOnBeforeTS~0 0))) (.cse7 (= ~pumpRunning~0 0)) (.cse8 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse10 (= |old(~switchedOnBeforeTS~0)| 0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse6 .cse1 (and .cse7 .cse8 .cse4)) (or .cse9 .cse6 .cse1 .cse3 .cse10) (or (and .cse6 .cse2) .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse8) .cse3) (or .cse0 .cse6 .cse1 .cse3 .cse4) (or .cse0 .cse5 (and .cse8 .cse4 (= ~pumpRunning~0 1)) .cse1 .cse2) (or .cse5 .cse6 .cse1 (and .cse9 .cse7 .cse8) .cse10))) [2022-11-23 15:57:40,464 INFO L899 garLoopResultBuilder]: For program point L559(lines 559 565) no Hoare annotation was computed. [2022-11-23 15:57:40,464 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 583 609) no Hoare annotation was computed. [2022-11-23 15:57:40,464 INFO L895 garLoopResultBuilder]: At program point L650(line 650) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 (and (not (< 0 ~waterLevel~0)) (<= ~waterLevel~0 |old(~waterLevel~0)|) .cse2 .cse3)) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (< |old(~waterLevel~0)| 3))) (or .cse0 .cse1 (and (= ~waterLevel~0 1) .cse2 .cse3) (not (= |old(~waterLevel~0)| 2))))) [2022-11-23 15:57:40,464 INFO L899 garLoopResultBuilder]: For program point L650-1(line 650) no Hoare annotation was computed. [2022-11-23 15:57:40,465 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 155) no Hoare annotation was computed. [2022-11-23 15:57:40,465 INFO L895 garLoopResultBuilder]: At program point L832(lines 789 834) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 1)) (.cse4 (= ~pumpRunning~0 0)) (.cse0 (<= ~waterLevel~0 1)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse3) (and (= 2 ~waterLevel~0) .cse1 .cse2 (or .cse4 .cse3)) (and .cse4 .cse0 .cse1 .cse2))) [2022-11-23 15:57:40,465 INFO L899 garLoopResultBuilder]: For program point L799(lines 799 805) no Hoare annotation was computed. [2022-11-23 15:57:40,465 INFO L899 garLoopResultBuilder]: For program point L799-1(lines 799 805) no Hoare annotation was computed. [2022-11-23 15:57:40,465 INFO L895 garLoopResultBuilder]: At program point L965(lines 965 972) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) [2022-11-23 15:57:40,466 INFO L902 garLoopResultBuilder]: At program point L965-2(lines 965 972) the Hoare annotation is: true [2022-11-23 15:57:40,466 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-23 15:57:40,466 INFO L895 garLoopResultBuilder]: At program point L825-2(lines 819 830) the Hoare annotation is: (let ((.cse2 (< ~waterLevel~0 3)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= ~pumpRunning~0 1))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2) (and .cse0 .cse1 .cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse3) (and (= 2 ~waterLevel~0) .cse0 .cse1 .cse3))) [2022-11-23 15:57:40,466 INFO L899 garLoopResultBuilder]: For program point L809(lines 809 815) no Hoare annotation was computed. [2022-11-23 15:57:40,466 INFO L899 garLoopResultBuilder]: For program point L809-1(lines 809 815) no Hoare annotation was computed. [2022-11-23 15:57:40,466 INFO L902 garLoopResultBuilder]: At program point L838(lines 779 842) the Hoare annotation is: true [2022-11-23 15:57:40,467 INFO L895 garLoopResultBuilder]: At program point L801(line 801) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 1)) (.cse4 (= ~pumpRunning~0 0)) (.cse0 (<= ~waterLevel~0 1)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse3) (and (= 2 ~waterLevel~0) .cse1 .cse2 (or .cse4 .cse3)) (and .cse4 .cse0 .cse1 .cse2))) [2022-11-23 15:57:40,467 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 15:57:40,467 INFO L895 garLoopResultBuilder]: At program point L835(lines 788 836) the Hoare annotation is: false [2022-11-23 15:57:40,467 INFO L899 garLoopResultBuilder]: For program point L790(lines 789 834) no Hoare annotation was computed. [2022-11-23 15:57:40,467 INFO L895 garLoopResultBuilder]: At program point L811(line 811) the Hoare annotation is: (let ((.cse2 (< ~waterLevel~0 3)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= ~pumpRunning~0 1))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2) (and .cse0 .cse1 .cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse3) (and (= 2 ~waterLevel~0) .cse0 .cse1 .cse3))) [2022-11-23 15:57:40,467 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 71 82) no Hoare annotation was computed. [2022-11-23 15:57:40,468 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 71 82) the Hoare annotation is: (let ((.cse0 (not (<= |old(~waterLevel~0)| 1))) (.cse1 (not (= 1 ~systemActive~0))) (.cse4 (not (= ~pumpRunning~0 0))) (.cse2 (not (= ~pumpRunning~0 1))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 .cse2 (not (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) .cse3) (or .cse0 .cse4 .cse1 .cse3) (or .cse1 (and .cse4 .cse2) (not (= |old(~waterLevel~0)| 2)) .cse3))) [2022-11-23 15:57:40,468 INFO L895 garLoopResultBuilder]: At program point L632(line 632) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (<= ~waterLevel~0 1)) (.cse2 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1)) (not .cse1) .cse2) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (and .cse1 (= |processEnvironment__wrappee__methaneQuery_~tmp~4#1| 0) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (not (< ~waterLevel~0 3)) .cse2))) [2022-11-23 15:57:40,468 INFO L899 garLoopResultBuilder]: For program point L626(lines 626 634) no Hoare annotation was computed. [2022-11-23 15:57:40,468 INFO L895 garLoopResultBuilder]: At program point L622(lines 622 639) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (not (< ~waterLevel~0 3)) .cse1) (or .cse0 (not (= |old(~pumpRunning~0)| 1)) (not (<= ~waterLevel~0 1)) .cse1 (= ~pumpRunning~0 1)))) [2022-11-23 15:57:40,468 INFO L895 garLoopResultBuilder]: At program point L682(line 682) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1)) (not (<= ~waterLevel~0 1)) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (and (= 2 ~waterLevel~0) (= |processEnvironment__wrappee__methaneQuery_~tmp~4#1| 1) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (not (< ~waterLevel~0 3)) .cse1))) [2022-11-23 15:57:40,469 INFO L895 garLoopResultBuilder]: At program point L682-1(line 682) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1)) (not (<= ~waterLevel~0 1)) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (and (= 2 ~waterLevel~0) (= |processEnvironment__wrappee__methaneQuery_~tmp~4#1| 1) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (not (< ~waterLevel~0 3)) .cse1))) [2022-11-23 15:57:40,469 INFO L895 garLoopResultBuilder]: At program point L637(line 637) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (< ~waterLevel~0 3)) .cse1) (or .cse0 (not (= |old(~pumpRunning~0)| 1)) (not (<= ~waterLevel~0 1)) .cse1 (= ~pumpRunning~0 1)))) [2022-11-23 15:57:40,469 INFO L899 garLoopResultBuilder]: For program point L637-1(lines 618 642) no Hoare annotation was computed. [2022-11-23 15:57:40,469 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 618 642) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (not (< ~waterLevel~0 3)) .cse1) (or .cse0 (not (= |old(~pumpRunning~0)| 1)) (not (<= ~waterLevel~0 1)) .cse1 (= ~pumpRunning~0 1)))) [2022-11-23 15:57:40,469 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 618 642) no Hoare annotation was computed. [2022-11-23 15:57:40,470 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 713 721) no Hoare annotation was computed. [2022-11-23 15:57:40,470 INFO L902 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 713 721) the Hoare annotation is: true [2022-11-23 15:57:40,470 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 702 712) the Hoare annotation is: true [2022-11-23 15:57:40,470 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 702 712) no Hoare annotation was computed. [2022-11-23 15:57:40,474 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:57:40,476 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:57:40,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:57:40 BoogieIcfgContainer [2022-11-23 15:57:40,505 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:57:40,506 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:57:40,506 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:57:40,506 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:57:40,507 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:57:00" (3/4) ... [2022-11-23 15:57:40,509 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 15:57:40,515 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-23 15:57:40,515 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-23 15:57:40,515 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-23 15:57:40,516 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-23 15:57:40,516 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-23 15:57:40,516 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-11-23 15:57:40,516 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2022-11-23 15:57:40,516 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-11-23 15:57:40,524 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 50 nodes and edges [2022-11-23 15:57:40,524 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-23 15:57:40,525 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-23 15:57:40,525 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 15:57:40,526 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 15:57:40,551 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || pumpRunning == switchedOnBeforeTS) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (((pumpRunning == aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(pumpRunning) == 0) && !(\old(pumpRunning) == 1)) || !(1 == systemActive)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == aux-isPumpRunning()-aux) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) == 2))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(\old(waterLevel) == 2)) || pumpRunning == switchedOnBeforeTS)) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || ((pumpRunning == 0 && pumpRunning == aux-isPumpRunning()-aux) && \old(waterLevel) == waterLevel)) [2022-11-23 15:57:40,552 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(1 == systemActive) || ((((2 == waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel) && (pumpRunning == \old(pumpRunning) || pumpRunning == 1)) && (pumpRunning == 0 || pumpRunning == 1))) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || (((\old(waterLevel) == waterLevel || waterLevel == 1) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= 1) && (\old(waterLevel) == waterLevel || waterLevel == 1))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || ((((2 == waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel) && (pumpRunning == \old(pumpRunning) || pumpRunning == 1)) && (pumpRunning == 0 || pumpRunning == 1))) || !(\old(waterLevel) < 3))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (((waterLevel + 1 <= \old(waterLevel) || (!(0 < waterLevel) && waterLevel <= \old(waterLevel))) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || !(1 == systemActive)) || ((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= \old(waterLevel))) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3)) [2022-11-23 15:57:40,552 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || ((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= 1) && 1 == systemActive) && (\old(waterLevel) == waterLevel || waterLevel == 1))) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || (((waterLevel <= 1 && (\old(waterLevel) == waterLevel || waterLevel == 1)) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) && (((((((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= 1) && 1 == systemActive) && (\old(waterLevel) == waterLevel || waterLevel == 1)) || !(1 == systemActive)) || (((((tmp == 2 && 2 == waterLevel) && 1 == systemActive) && \old(waterLevel) == waterLevel) && (pumpRunning == \old(pumpRunning) || pumpRunning == 1)) && (pumpRunning == 0 || pumpRunning == 1))) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || (((waterLevel <= 1 && (\old(waterLevel) == waterLevel || waterLevel == 1)) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && 1 == systemActive) && waterLevel <= \old(waterLevel))) || !(\old(pumpRunning) == 1)) || (((!(0 < waterLevel) && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (((((tmp == 2 && 2 == waterLevel) && 1 == systemActive) && \old(waterLevel) == waterLevel) && (pumpRunning == \old(pumpRunning) || pumpRunning == 1)) && (pumpRunning == 0 || pumpRunning == 1))) || ((((pumpRunning == 0 && 1 == systemActive) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) && \old(waterLevel) == tmp)) || !(\old(waterLevel) < 3)) [2022-11-23 15:57:40,553 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) || !(\old(pumpRunning) == 1))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) < 3)) [2022-11-23 15:57:40,553 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(1 == systemActive) || ((((2 == waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel) && (pumpRunning == \old(pumpRunning) || pumpRunning == 1)) && (pumpRunning == 0 || pumpRunning == 1))) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || (((\old(waterLevel) == waterLevel || waterLevel == 1) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= 1) && (\old(waterLevel) == waterLevel || waterLevel == 1))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || ((((2 == waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel) && (pumpRunning == \old(pumpRunning) || pumpRunning == 1)) && (pumpRunning == 0 || pumpRunning == 1))) || !(\old(waterLevel) < 3))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (((waterLevel + 1 <= \old(waterLevel) || (!(0 < waterLevel) && waterLevel <= \old(waterLevel))) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || !(1 == systemActive)) || ((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= \old(waterLevel))) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3)) [2022-11-23 15:57:40,553 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || pumpRunning == switchedOnBeforeTS) || !(waterLevel < 3)) || !(switchedOnBeforeTS == \old(pumpRunning))) && ((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(waterLevel <= 1)) || !(switchedOnBeforeTS == \old(pumpRunning))) || pumpRunning == 1) [2022-11-23 15:57:40,553 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (((!(0 < waterLevel) && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) < 3))) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((waterLevel == 1 && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) == 2)) [2022-11-23 15:57:40,554 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(waterLevel <= 1)) || !(switchedOnBeforeTS == \old(pumpRunning))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((2 == waterLevel && tmp == 1) && pumpRunning == switchedOnBeforeTS)) || !(waterLevel < 3)) || !(switchedOnBeforeTS == \old(pumpRunning))) [2022-11-23 15:57:40,600 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2157bf60-9e4c-437d-a4c5-2c2e5b8d7456/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 15:57:40,601 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:57:40,602 INFO L158 Benchmark]: Toolchain (without parser) took 41678.33ms. Allocated memory was 153.1MB in the beginning and 564.1MB in the end (delta: 411.0MB). Free memory was 111.5MB in the beginning and 303.1MB in the end (delta: -191.6MB). Peak memory consumption was 221.0MB. Max. memory is 16.1GB. [2022-11-23 15:57:40,602 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 109.1MB. Free memory is still 59.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:57:40,602 INFO L158 Benchmark]: CACSL2BoogieTranslator took 452.84ms. Allocated memory is still 153.1MB. Free memory was 111.5MB in the beginning and 92.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 15:57:40,603 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.42ms. Allocated memory is still 153.1MB. Free memory was 92.6MB in the beginning and 90.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:57:40,603 INFO L158 Benchmark]: Boogie Preprocessor took 29.12ms. Allocated memory is still 153.1MB. Free memory was 90.1MB in the beginning and 88.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:57:40,603 INFO L158 Benchmark]: RCFGBuilder took 737.88ms. Allocated memory is still 153.1MB. Free memory was 88.5MB in the beginning and 63.3MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-23 15:57:40,604 INFO L158 Benchmark]: TraceAbstraction took 40290.42ms. Allocated memory was 153.1MB in the beginning and 564.1MB in the end (delta: 411.0MB). Free memory was 62.8MB in the beginning and 309.4MB in the end (delta: -246.6MB). Peak memory consumption was 281.9MB. Max. memory is 16.1GB. [2022-11-23 15:57:40,605 INFO L158 Benchmark]: Witness Printer took 95.50ms. Allocated memory is still 564.1MB. Free memory was 309.4MB in the beginning and 303.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-23 15:57:40,607 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 109.1MB. Free memory is still 59.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 452.84ms. Allocated memory is still 153.1MB. Free memory was 111.5MB in the beginning and 92.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.42ms. Allocated memory is still 153.1MB. Free memory was 92.6MB in the beginning and 90.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.12ms. Allocated memory is still 153.1MB. Free memory was 90.1MB in the beginning and 88.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 737.88ms. Allocated memory is still 153.1MB. Free memory was 88.5MB in the beginning and 63.3MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 40290.42ms. Allocated memory was 153.1MB in the beginning and 564.1MB in the end (delta: 411.0MB). Free memory was 62.8MB in the beginning and 309.4MB in the end (delta: -246.6MB). Peak memory consumption was 281.9MB. Max. memory is 16.1GB. * Witness Printer took 95.50ms. Allocated memory is still 564.1MB. Free memory was 309.4MB in the beginning and 303.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 155]: 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: 40.2s, OverallIterations: 9, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2099 SdHoareTripleChecker+Valid, 2.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2078 mSDsluCounter, 2108 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1522 mSDsCounter, 1288 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2727 IncrementalHoareTripleChecker+Invalid, 4015 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1288 mSolverCounterUnsat, 586 mSDtfsCounter, 2727 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 604 GetRequests, 375 SyntacticMatches, 14 SemanticMatches, 215 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6009 ImplicationChecksByTransitivity, 18.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=348occurred in iteration=7, InterpolantAutomatonStates: 122, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 106 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 37 LocationsWithAnnotation, 1332 PreInvPairs, 1552 NumberOfFragments, 1999 HoareAnnotationTreeSize, 1332 FomulaSimplifications, 5325 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 37 FomulaSimplificationsInter, 18318 FormulaSimplificationTreeSizeReductionInter, 4.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 538 NumberOfCodeBlocks, 538 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 668 ConstructedInterpolants, 0 QuantifiedInterpolants, 2002 SizeOfPredicates, 19 NumberOfNonLiveVariables, 665 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 13 InterpolantComputations, 7 PerfectInterpolantSequences, 166/228 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: 597]: Loop Invariant Derived loop invariant: ((((((!(1 == systemActive) || ((((2 == waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel) && (pumpRunning == \old(pumpRunning) || pumpRunning == 1)) && (pumpRunning == 0 || pumpRunning == 1))) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || (((\old(waterLevel) == waterLevel || waterLevel == 1) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= 1) && (\old(waterLevel) == waterLevel || waterLevel == 1))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || ((((2 == waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel) && (pumpRunning == \old(pumpRunning) || pumpRunning == 1)) && (pumpRunning == 0 || pumpRunning == 1))) || !(\old(waterLevel) < 3))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (((waterLevel + 1 <= \old(waterLevel) || (!(0 < waterLevel) && waterLevel <= \old(waterLevel))) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || !(1 == systemActive)) || ((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= \old(waterLevel))) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 622]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || pumpRunning == switchedOnBeforeTS) || !(waterLevel < 3)) || !(switchedOnBeforeTS == \old(pumpRunning))) && ((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(waterLevel <= 1)) || !(switchedOnBeforeTS == \old(pumpRunning))) || pumpRunning == 1) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 652]: Loop Invariant Derived loop invariant: (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (((!(0 < waterLevel) && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) < 3))) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((waterLevel == 1 && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) == 2)) - InvariantResult [Line: 789]: Loop Invariant Derived loop invariant: (((((waterLevel <= 1 && 1 == systemActive) && splverifierCounter == 0) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1) || (((2 == waterLevel && 1 == systemActive) && splverifierCounter == 0) && (pumpRunning == 0 || pumpRunning == 1))) || (((pumpRunning == 0 && waterLevel <= 1) && 1 == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 644]: Loop Invariant Derived loop invariant: ((((((!(1 == systemActive) || ((((2 == waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel) && (pumpRunning == \old(pumpRunning) || pumpRunning == 1)) && (pumpRunning == 0 || pumpRunning == 1))) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || (((\old(waterLevel) == waterLevel || waterLevel == 1) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= 1) && (\old(waterLevel) == waterLevel || waterLevel == 1))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || ((((2 == waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel) && (pumpRunning == \old(pumpRunning) || pumpRunning == 1)) && (pumpRunning == 0 || pumpRunning == 1))) || !(\old(waterLevel) < 3))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (((waterLevel + 1 <= \old(waterLevel) || (!(0 < waterLevel) && waterLevel <= \old(waterLevel))) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || !(1 == systemActive)) || ((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= \old(waterLevel))) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 546]: Loop Invariant Derived loop invariant: (((((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || ((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= 1) && 1 == systemActive) && (\old(waterLevel) == waterLevel || waterLevel == 1))) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || (((waterLevel <= 1 && (\old(waterLevel) == waterLevel || waterLevel == 1)) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) && (((((((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= 1) && 1 == systemActive) && (\old(waterLevel) == waterLevel || waterLevel == 1)) || !(1 == systemActive)) || (((((tmp == 2 && 2 == waterLevel) && 1 == systemActive) && \old(waterLevel) == waterLevel) && (pumpRunning == \old(pumpRunning) || pumpRunning == 1)) && (pumpRunning == 0 || pumpRunning == 1))) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || (((waterLevel <= 1 && (\old(waterLevel) == waterLevel || waterLevel == 1)) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && 1 == systemActive) && waterLevel <= \old(waterLevel))) || !(\old(pumpRunning) == 1)) || (((!(0 < waterLevel) && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (((((tmp == 2 && 2 == waterLevel) && 1 == systemActive) && \old(waterLevel) == waterLevel) && (pumpRunning == \old(pumpRunning) || pumpRunning == 1)) && (pumpRunning == 0 || pumpRunning == 1))) || ((((pumpRunning == 0 && 1 == systemActive) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) && \old(waterLevel) == tmp)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 788]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 155]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) || !(\old(pumpRunning) == 1))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 702]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 541]: Loop Invariant Derived loop invariant: (((((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || pumpRunning == switchedOnBeforeTS) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (((pumpRunning == aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(pumpRunning) == 0) && !(\old(pumpRunning) == 1)) || !(1 == systemActive)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == aux-isPumpRunning()-aux) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) == 2))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(\old(waterLevel) == 2)) || pumpRunning == switchedOnBeforeTS)) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || ((pumpRunning == 0 && pumpRunning == aux-isPumpRunning()-aux) && \old(waterLevel) == waterLevel)) - InvariantResult [Line: 883]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 682]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(waterLevel <= 1)) || !(switchedOnBeforeTS == \old(pumpRunning))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((2 == waterLevel && tmp == 1) && pumpRunning == switchedOnBeforeTS)) || !(waterLevel < 3)) || !(switchedOnBeforeTS == \old(pumpRunning))) - InvariantResult [Line: 965]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 965]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && 1 == systemActive) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS - InvariantResult [Line: 779]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 893]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-23 15:57:40,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2157bf60-9e4c-437d-a4c5-2c2e5b8d7456/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE