./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product40.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59d6922-3745-4099-8b23-5455aaa38dbc/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59d6922-3745-4099-8b23-5455aaa38dbc/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59d6922-3745-4099-8b23-5455aaa38dbc/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59d6922-3745-4099-8b23-5455aaa38dbc/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product40.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59d6922-3745-4099-8b23-5455aaa38dbc/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59d6922-3745-4099-8b23-5455aaa38dbc/bin/utaipan-gh47qXpMRh --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 1b223e2286b1d2d2d4710f5bd529ee4610cfb9619424734c12c9aa00d3c99444 --- 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-2329fc7 [2022-12-14 05:53:45,482 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:53:45,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:53:45,502 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:53:45,502 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:53:45,503 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:53:45,505 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:53:45,506 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:53:45,508 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:53:45,509 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:53:45,510 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:53:45,511 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:53:45,511 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:53:45,512 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:53:45,513 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:53:45,514 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:53:45,515 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:53:45,516 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:53:45,517 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:53:45,519 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:53:45,521 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:53:45,522 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:53:45,523 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:53:45,524 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:53:45,527 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:53:45,527 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:53:45,527 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:53:45,528 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:53:45,529 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:53:45,530 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:53:45,530 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:53:45,531 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:53:45,531 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:53:45,532 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:53:45,533 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:53:45,533 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:53:45,534 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:53:45,534 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:53:45,534 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:53:45,535 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:53:45,536 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:53:45,537 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59d6922-3745-4099-8b23-5455aaa38dbc/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 05:53:45,559 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:53:45,559 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:53:45,560 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:53:45,560 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:53:45,560 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:53:45,561 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:53:45,561 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:53:45,561 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:53:45,561 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:53:45,561 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 05:53:45,562 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:53:45,562 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:53:45,562 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 05:53:45,562 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 05:53:45,562 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:53:45,563 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 05:53:45,563 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 05:53:45,563 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 05:53:45,564 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:53:45,564 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 05:53:45,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 05:53:45,564 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 05:53:45,564 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:53:45,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 05:53:45,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:53:45,565 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 05:53:45,565 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 05:53:45,565 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 05:53:45,566 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:53:45,566 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 05:53:45,566 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:53:45,566 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:53:45,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:53:45,567 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:53:45,567 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 05:53:45,567 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:53:45,567 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 05:53:45,567 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 05:53:45,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 05:53:45,568 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 05:53:45,568 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:53:45,568 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_c59d6922-3745-4099-8b23-5455aaa38dbc/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59d6922-3745-4099-8b23-5455aaa38dbc/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b223e2286b1d2d2d4710f5bd529ee4610cfb9619424734c12c9aa00d3c99444 [2022-12-14 05:53:45,728 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:53:45,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:53:45,745 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:53:45,746 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:53:45,746 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:53:45,747 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59d6922-3745-4099-8b23-5455aaa38dbc/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/minepump_spec2_product40.cil.c [2022-12-14 05:53:48,323 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:53:48,508 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:53:48,509 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59d6922-3745-4099-8b23-5455aaa38dbc/sv-benchmarks/c/product-lines/minepump_spec2_product40.cil.c [2022-12-14 05:53:48,518 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59d6922-3745-4099-8b23-5455aaa38dbc/bin/utaipan-gh47qXpMRh/data/94e35c567/be667c78c24e4ef5bac8a4d25247ab75/FLAGcf0a6f60a [2022-12-14 05:53:48,899 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59d6922-3745-4099-8b23-5455aaa38dbc/bin/utaipan-gh47qXpMRh/data/94e35c567/be667c78c24e4ef5bac8a4d25247ab75 [2022-12-14 05:53:48,901 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:53:48,902 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:53:48,903 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:53:48,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:53:48,906 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:53:48,907 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:53:48" (1/1) ... [2022-12-14 05:53:48,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16119c48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:53:48, skipping insertion in model container [2022-12-14 05:53:48,908 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:53:48" (1/1) ... [2022-12-14 05:53:48,913 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:53:48,941 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:53:49,142 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_c59d6922-3745-4099-8b23-5455aaa38dbc/sv-benchmarks/c/product-lines/minepump_spec2_product40.cil.c[17002,17015] [2022-12-14 05:53:49,154 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:53:49,165 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 05:53:49,216 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_c59d6922-3745-4099-8b23-5455aaa38dbc/sv-benchmarks/c/product-lines/minepump_spec2_product40.cil.c[17002,17015] [2022-12-14 05:53:49,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:53:49,234 INFO L208 MainTranslator]: Completed translation [2022-12-14 05:53:49,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:53:49 WrapperNode [2022-12-14 05:53:49,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:53:49,236 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 05:53:49,236 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 05:53:49,236 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 05:53:49,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:53:49" (1/1) ... [2022-12-14 05:53:49,250 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:53:49" (1/1) ... [2022-12-14 05:53:49,267 INFO L138 Inliner]: procedures = 56, calls = 101, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 197 [2022-12-14 05:53:49,267 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 05:53:49,268 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 05:53:49,268 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 05:53:49,268 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 05:53:49,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:53:49" (1/1) ... [2022-12-14 05:53:49,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:53:49" (1/1) ... [2022-12-14 05:53:49,277 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:53:49" (1/1) ... [2022-12-14 05:53:49,277 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:53:49" (1/1) ... [2022-12-14 05:53:49,280 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:53:49" (1/1) ... [2022-12-14 05:53:49,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:53:49" (1/1) ... [2022-12-14 05:53:49,285 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:53:49" (1/1) ... [2022-12-14 05:53:49,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:53:49" (1/1) ... [2022-12-14 05:53:49,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 05:53:49,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 05:53:49,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 05:53:49,288 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 05:53:49,288 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:53:49" (1/1) ... [2022-12-14 05:53:49,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:53:49,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59d6922-3745-4099-8b23-5455aaa38dbc/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:53:49,312 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59d6922-3745-4099-8b23-5455aaa38dbc/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 05:53:49,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59d6922-3745-4099-8b23-5455aaa38dbc/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 05:53:49,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 05:53:49,346 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-12-14 05:53:49,346 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-12-14 05:53:49,346 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-12-14 05:53:49,347 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-12-14 05:53:49,347 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-12-14 05:53:49,347 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-12-14 05:53:49,347 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-12-14 05:53:49,347 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-12-14 05:53:49,347 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-12-14 05:53:49,347 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-12-14 05:53:49,347 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-12-14 05:53:49,348 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-12-14 05:53:49,348 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-12-14 05:53:49,348 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-12-14 05:53:49,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 05:53:49,348 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-12-14 05:53:49,348 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-12-14 05:53:49,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 05:53:49,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 05:53:49,406 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 05:53:49,408 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 05:53:49,609 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 05:53:49,691 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 05:53:49,692 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 05:53:49,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:53:49 BoogieIcfgContainer [2022-12-14 05:53:49,694 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 05:53:49,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 05:53:49,697 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 05:53:49,700 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 05:53:49,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:53:48" (1/3) ... [2022-12-14 05:53:49,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f450052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:53:49, skipping insertion in model container [2022-12-14 05:53:49,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:53:49" (2/3) ... [2022-12-14 05:53:49,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f450052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:53:49, skipping insertion in model container [2022-12-14 05:53:49,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:53:49" (3/3) ... [2022-12-14 05:53:49,703 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product40.cil.c [2022-12-14 05:53:49,722 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 05:53:49,722 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 05:53:49,767 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 05:53:49,772 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;@7fc42f91, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 05:53:49,773 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 05:53:49,776 INFO L276 IsEmpty]: Start isEmpty. Operand has 66 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 51 states have internal predecessors, (61), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 05:53:49,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 05:53:49,784 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:53:49,785 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:53:49,785 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:53:49,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:53:49,790 INFO L85 PathProgramCache]: Analyzing trace with hash 730061523, now seen corresponding path program 1 times [2022-12-14 05:53:49,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:53:49,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463977557] [2022-12-14 05:53:49,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:53:49,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:53:49,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:53:49,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:53:49,951 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:53:49,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463977557] [2022-12-14 05:53:49,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463977557] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:53:49,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:53:49,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:53:49,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961074173] [2022-12-14 05:53:49,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:53:49,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 05:53:49,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:53:49,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 05:53:49,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 05:53:49,991 INFO L87 Difference]: Start difference. First operand has 66 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 51 states have internal predecessors, (61), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 05:53:50,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:53:50,057 INFO L93 Difference]: Finished difference Result 130 states and 179 transitions. [2022-12-14 05:53:50,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 05:53:50,060 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-12-14 05:53:50,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:53:50,069 INFO L225 Difference]: With dead ends: 130 [2022-12-14 05:53:50,069 INFO L226 Difference]: Without dead ends: 61 [2022-12-14 05:53:50,072 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 [2022-12-14 05:53:50,075 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:53:50,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:53:50,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-12-14 05:53:50,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-12-14 05:53:50,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 39 states have (on average 1.358974358974359) internal successors, (53), 47 states have internal predecessors, (53), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 05:53:50,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 80 transitions. [2022-12-14 05:53:50,113 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 80 transitions. Word has length 17 [2022-12-14 05:53:50,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:53:50,113 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 80 transitions. [2022-12-14 05:53:50,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 05:53:50,114 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 80 transitions. [2022-12-14 05:53:50,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 05:53:50,115 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:53:50,116 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:53:50,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 05:53:50,116 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:53:50,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:53:50,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1160885319, now seen corresponding path program 1 times [2022-12-14 05:53:50,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:53:50,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448879657] [2022-12-14 05:53:50,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:53:50,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:53:50,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:53:50,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:53:50,203 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:53:50,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448879657] [2022-12-14 05:53:50,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448879657] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:53:50,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:53:50,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:53:50,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264242869] [2022-12-14 05:53:50,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:53:50,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:53:50,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:53:50,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:53:50,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:53:50,207 INFO L87 Difference]: Start difference. First operand 61 states and 80 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 05:53:50,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:53:50,246 INFO L93 Difference]: Finished difference Result 94 states and 122 transitions. [2022-12-14 05:53:50,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:53:50,246 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-12-14 05:53:50,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:53:50,248 INFO L225 Difference]: With dead ends: 94 [2022-12-14 05:53:50,248 INFO L226 Difference]: Without dead ends: 53 [2022-12-14 05:53:50,248 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 [2022-12-14 05:53:50,250 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 14 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:53:50,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 92 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:53:50,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-12-14 05:53:50,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-12-14 05:53:50,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 42 states have internal predecessors, (47), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 05:53:50,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 69 transitions. [2022-12-14 05:53:50,259 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 69 transitions. Word has length 18 [2022-12-14 05:53:50,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:53:50,260 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 69 transitions. [2022-12-14 05:53:50,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 05:53:50,260 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 69 transitions. [2022-12-14 05:53:50,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 05:53:50,261 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:53:50,261 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:53:50,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 05:53:50,261 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:53:50,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:53:50,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1940152216, now seen corresponding path program 1 times [2022-12-14 05:53:50,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:53:50,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725605688] [2022-12-14 05:53:50,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:53:50,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:53:50,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:53:50,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:53:50,332 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:53:50,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725605688] [2022-12-14 05:53:50,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725605688] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:53:50,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:53:50,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:53:50,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058213969] [2022-12-14 05:53:50,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:53:50,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:53:50,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:53:50,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:53:50,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:53:50,335 INFO L87 Difference]: Start difference. First operand 53 states and 69 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, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 05:53:50,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:53:50,387 INFO L93 Difference]: Finished difference Result 155 states and 204 transitions. [2022-12-14 05:53:50,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:53:50,388 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, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-12-14 05:53:50,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:53:50,389 INFO L225 Difference]: With dead ends: 155 [2022-12-14 05:53:50,389 INFO L226 Difference]: Without dead ends: 104 [2022-12-14 05:53:50,389 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 [2022-12-14 05:53:50,390 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 63 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:53:50,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 125 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:53:50,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-12-14 05:53:50,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 101. [2022-12-14 05:53:50,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 64 states have (on average 1.390625) internal successors, (89), 79 states have internal predecessors, (89), 22 states have call successors, (22), 14 states have call predecessors, (22), 14 states have return successors, (22), 15 states have call predecessors, (22), 22 states have call successors, (22) [2022-12-14 05:53:50,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 133 transitions. [2022-12-14 05:53:50,408 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 133 transitions. Word has length 21 [2022-12-14 05:53:50,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:53:50,408 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 133 transitions. [2022-12-14 05:53:50,408 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, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 05:53:50,409 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 133 transitions. [2022-12-14 05:53:50,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 05:53:50,410 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:53:50,410 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:53:50,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 05:53:50,410 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:53:50,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:53:50,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1096536923, now seen corresponding path program 1 times [2022-12-14 05:53:50,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:53:50,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111346585] [2022-12-14 05:53:50,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:53:50,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:53:50,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:53:50,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:53:50,514 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:53:50,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111346585] [2022-12-14 05:53:50,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111346585] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:53:50,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:53:50,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 05:53:50,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857241729] [2022-12-14 05:53:50,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:53:50,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 05:53:50,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:53:50,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 05:53:50,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 05:53:50,517 INFO L87 Difference]: Start difference. First operand 101 states and 133 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 05:53:50,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:53:50,638 INFO L93 Difference]: Finished difference Result 295 states and 392 transitions. [2022-12-14 05:53:50,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 05:53:50,639 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2022-12-14 05:53:50,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:53:50,641 INFO L225 Difference]: With dead ends: 295 [2022-12-14 05:53:50,641 INFO L226 Difference]: Without dead ends: 196 [2022-12-14 05:53:50,642 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 [2022-12-14 05:53:50,643 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 45 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:53:50,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 278 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:53:50,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-12-14 05:53:50,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 188. [2022-12-14 05:53:50,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 119 states have (on average 1.3697478991596639) internal successors, (163), 146 states have internal predecessors, (163), 42 states have call successors, (42), 26 states have call predecessors, (42), 26 states have return successors, (42), 28 states have call predecessors, (42), 42 states have call successors, (42) [2022-12-14 05:53:50,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 247 transitions. [2022-12-14 05:53:50,673 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 247 transitions. Word has length 24 [2022-12-14 05:53:50,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:53:50,673 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 247 transitions. [2022-12-14 05:53:50,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 05:53:50,673 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 247 transitions. [2022-12-14 05:53:50,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 05:53:50,675 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:53:50,675 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:53:50,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 05:53:50,676 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:53:50,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:53:50,676 INFO L85 PathProgramCache]: Analyzing trace with hash -812796148, now seen corresponding path program 1 times [2022-12-14 05:53:50,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:53:50,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574204143] [2022-12-14 05:53:50,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:53:50,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:53:50,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:53:50,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:53:50,734 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:53:50,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574204143] [2022-12-14 05:53:50,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574204143] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:53:50,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:53:50,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:53:50,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51001453] [2022-12-14 05:53:50,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:53:50,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:53:50,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:53:50,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:53:50,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:53:50,736 INFO L87 Difference]: Start difference. First operand 188 states and 247 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 05:53:50,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:53:50,790 INFO L93 Difference]: Finished difference Result 287 states and 382 transitions. [2022-12-14 05:53:50,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:53:50,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2022-12-14 05:53:50,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:53:50,792 INFO L225 Difference]: With dead ends: 287 [2022-12-14 05:53:50,792 INFO L226 Difference]: Without dead ends: 285 [2022-12-14 05:53:50,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:53:50,793 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 44 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:53:50,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 115 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:53:50,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-12-14 05:53:50,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2022-12-14 05:53:50,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 180 states have (on average 1.3722222222222222) internal successors, (247), 221 states have internal predecessors, (247), 64 states have call successors, (64), 40 states have call predecessors, (64), 40 states have return successors, (68), 43 states have call predecessors, (68), 64 states have call successors, (68) [2022-12-14 05:53:50,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 379 transitions. [2022-12-14 05:53:50,817 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 379 transitions. Word has length 27 [2022-12-14 05:53:50,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:53:50,817 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 379 transitions. [2022-12-14 05:53:50,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 05:53:50,817 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 379 transitions. [2022-12-14 05:53:50,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-12-14 05:53:50,819 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:53:50,819 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 05:53:50,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 05:53:50,819 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:53:50,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:53:50,820 INFO L85 PathProgramCache]: Analyzing trace with hash -39632108, now seen corresponding path program 1 times [2022-12-14 05:53:50,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:53:50,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150042880] [2022-12-14 05:53:50,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:53:50,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:53:50,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:53:50,930 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 05:53:50,931 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:53:50,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150042880] [2022-12-14 05:53:50,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150042880] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:53:50,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:53:50,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 05:53:50,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50603152] [2022-12-14 05:53:50,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:53:50,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 05:53:50,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:53:50,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 05:53:50,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-14 05:53:50,933 INFO L87 Difference]: Start difference. First operand 285 states and 379 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-12-14 05:53:51,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:53:51,189 INFO L93 Difference]: Finished difference Result 934 states and 1260 transitions. [2022-12-14 05:53:51,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 05:53:51,190 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 48 [2022-12-14 05:53:51,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:53:51,194 INFO L225 Difference]: With dead ends: 934 [2022-12-14 05:53:51,194 INFO L226 Difference]: Without dead ends: 651 [2022-12-14 05:53:51,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-12-14 05:53:51,197 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 125 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:53:51,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 173 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:53:51,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2022-12-14 05:53:51,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 604. [2022-12-14 05:53:51,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 406 states have (on average 1.2635467980295567) internal successors, (513), 445 states have internal predecessors, (513), 98 states have call successors, (98), 83 states have call predecessors, (98), 99 states have return successors, (144), 99 states have call predecessors, (144), 98 states have call successors, (144) [2022-12-14 05:53:51,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 755 transitions. [2022-12-14 05:53:51,254 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 755 transitions. Word has length 48 [2022-12-14 05:53:51,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:53:51,254 INFO L495 AbstractCegarLoop]: Abstraction has 604 states and 755 transitions. [2022-12-14 05:53:51,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-12-14 05:53:51,254 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 755 transitions. [2022-12-14 05:53:51,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-14 05:53:51,259 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:53:51,259 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 05:53:51,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 05:53:51,259 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:53:51,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:53:51,260 INFO L85 PathProgramCache]: Analyzing trace with hash 50700285, now seen corresponding path program 1 times [2022-12-14 05:53:51,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:53:51,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430134737] [2022-12-14 05:53:51,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:53:51,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:53:51,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:53:51,293 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 05:53:51,293 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:53:51,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430134737] [2022-12-14 05:53:51,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430134737] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:53:51,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:53:51,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 05:53:51,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101486832] [2022-12-14 05:53:51,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:53:51,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 05:53:51,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:53:51,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 05:53:51,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 05:53:51,295 INFO L87 Difference]: Start difference. First operand 604 states and 755 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2022-12-14 05:53:51,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:53:51,402 INFO L93 Difference]: Finished difference Result 971 states and 1215 transitions. [2022-12-14 05:53:51,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 05:53:51,402 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (6), 2 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 56 [2022-12-14 05:53:51,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:53:51,404 INFO L225 Difference]: With dead ends: 971 [2022-12-14 05:53:51,404 INFO L226 Difference]: Without dead ends: 369 [2022-12-14 05:53:51,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 05:53:51,406 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 85 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:53:51,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 120 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:53:51,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2022-12-14 05:53:51,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 352. [2022-12-14 05:53:51,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 239 states have (on average 1.2510460251046025) internal successors, (299), 261 states have internal predecessors, (299), 55 states have call successors, (55), 49 states have call predecessors, (55), 57 states have return successors, (78), 57 states have call predecessors, (78), 55 states have call successors, (78) [2022-12-14 05:53:51,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 432 transitions. [2022-12-14 05:53:51,437 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 432 transitions. Word has length 56 [2022-12-14 05:53:51,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:53:51,438 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 432 transitions. [2022-12-14 05:53:51,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2022-12-14 05:53:51,438 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 432 transitions. [2022-12-14 05:53:51,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-12-14 05:53:51,439 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:53:51,439 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:53:51,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 05:53:51,439 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:53:51,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:53:51,440 INFO L85 PathProgramCache]: Analyzing trace with hash -306245961, now seen corresponding path program 1 times [2022-12-14 05:53:51,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:53:51,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232183953] [2022-12-14 05:53:51,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:53:51,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:53:51,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:53:51,680 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 05:53:51,680 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:53:51,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232183953] [2022-12-14 05:53:51,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232183953] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:53:51,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [339276461] [2022-12-14 05:53:51,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:53:51,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:53:51,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59d6922-3745-4099-8b23-5455aaa38dbc/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:53:51,682 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59d6922-3745-4099-8b23-5455aaa38dbc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:53:51,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59d6922-3745-4099-8b23-5455aaa38dbc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 05:53:51,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:53:51,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 05:53:51,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:53:51,832 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:53:51,832 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:53:51,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [339276461] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:53:51,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 05:53:51,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2022-12-14 05:53:51,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712596666] [2022-12-14 05:53:51,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:53:51,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:53:51,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:53:51,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:53:51,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-12-14 05:53:51,834 INFO L87 Difference]: Start difference. First operand 352 states and 432 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-12-14 05:53:51,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:53:51,895 INFO L93 Difference]: Finished difference Result 704 states and 863 transitions. [2022-12-14 05:53:51,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:53:51,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 60 [2022-12-14 05:53:51,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:53:51,897 INFO L225 Difference]: With dead ends: 704 [2022-12-14 05:53:51,897 INFO L226 Difference]: Without dead ends: 354 [2022-12-14 05:53:51,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-12-14 05:53:51,898 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 31 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:53:51,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 120 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:53:51,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-12-14 05:53:51,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 352. [2022-12-14 05:53:51,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 239 states have (on average 1.2301255230125523) internal successors, (294), 261 states have internal predecessors, (294), 55 states have call successors, (55), 49 states have call predecessors, (55), 57 states have return successors, (70), 57 states have call predecessors, (70), 55 states have call successors, (70) [2022-12-14 05:53:51,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 419 transitions. [2022-12-14 05:53:51,919 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 419 transitions. Word has length 60 [2022-12-14 05:53:51,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:53:51,919 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 419 transitions. [2022-12-14 05:53:51,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-12-14 05:53:51,919 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 419 transitions. [2022-12-14 05:53:51,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-12-14 05:53:51,920 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:53:51,920 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] [2022-12-14 05:53:51,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59d6922-3745-4099-8b23-5455aaa38dbc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 05:53:52,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59d6922-3745-4099-8b23-5455aaa38dbc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:53:52,121 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:53:52,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:53:52,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1901513066, now seen corresponding path program 1 times [2022-12-14 05:53:52,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:53:52,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369144465] [2022-12-14 05:53:52,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:53:52,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:53:52,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:53:52,405 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 05:53:52,405 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:53:52,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369144465] [2022-12-14 05:53:52,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369144465] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:53:52,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:53:52,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 05:53:52,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43092906] [2022-12-14 05:53:52,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:53:52,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 05:53:52,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:53:52,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 05:53:52,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-14 05:53:52,407 INFO L87 Difference]: Start difference. First operand 352 states and 419 transitions. Second operand has 10 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 5 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2022-12-14 05:53:52,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:53:52,936 INFO L93 Difference]: Finished difference Result 926 states and 1130 transitions. [2022-12-14 05:53:52,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-14 05:53:52,936 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 5 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) Word has length 62 [2022-12-14 05:53:52,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:53:52,938 INFO L225 Difference]: With dead ends: 926 [2022-12-14 05:53:52,938 INFO L226 Difference]: Without dead ends: 576 [2022-12-14 05:53:52,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=130, Invalid=376, Unknown=0, NotChecked=0, Total=506 [2022-12-14 05:53:52,939 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 260 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 05:53:52,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 319 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 05:53:52,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2022-12-14 05:53:52,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 462. [2022-12-14 05:53:52,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 321 states have (on average 1.2274143302180685) internal successors, (394), 345 states have internal predecessors, (394), 69 states have call successors, (69), 63 states have call predecessors, (69), 71 states have return successors, (84), 71 states have call predecessors, (84), 69 states have call successors, (84) [2022-12-14 05:53:52,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 547 transitions. [2022-12-14 05:53:52,981 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 547 transitions. Word has length 62 [2022-12-14 05:53:52,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:53:52,981 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 547 transitions. [2022-12-14 05:53:52,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 5 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2022-12-14 05:53:52,981 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 547 transitions. [2022-12-14 05:53:52,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-14 05:53:52,983 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:53:52,983 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-12-14 05:53:52,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 05:53:52,983 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:53:52,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:53:52,984 INFO L85 PathProgramCache]: Analyzing trace with hash -2111948803, now seen corresponding path program 1 times [2022-12-14 05:53:52,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:53:52,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132399375] [2022-12-14 05:53:52,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:53:52,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:53:52,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:53:53,055 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-12-14 05:53:53,056 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:53:53,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132399375] [2022-12-14 05:53:53,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132399375] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:53:53,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:53:53,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 05:53:53,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299360186] [2022-12-14 05:53:53,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:53:53,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 05:53:53,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:53:53,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 05:53:53,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 05:53:53,058 INFO L87 Difference]: Start difference. First operand 462 states and 547 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-14 05:53:53,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:53:53,139 INFO L93 Difference]: Finished difference Result 664 states and 790 transitions. [2022-12-14 05:53:53,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 05:53:53,140 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 65 [2022-12-14 05:53:53,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:53:53,141 INFO L225 Difference]: With dead ends: 664 [2022-12-14 05:53:53,141 INFO L226 Difference]: Without dead ends: 431 [2022-12-14 05:53:53,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:53:53,142 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 47 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:53:53,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 163 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:53:53,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2022-12-14 05:53:53,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 414. [2022-12-14 05:53:53,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 287 states have (on average 1.2125435540069687) internal successors, (348), 309 states have internal predecessors, (348), 62 states have call successors, (62), 57 states have call predecessors, (62), 64 states have return successors, (72), 63 states have call predecessors, (72), 62 states have call successors, (72) [2022-12-14 05:53:53,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 482 transitions. [2022-12-14 05:53:53,173 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 482 transitions. Word has length 65 [2022-12-14 05:53:53,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:53:53,174 INFO L495 AbstractCegarLoop]: Abstraction has 414 states and 482 transitions. [2022-12-14 05:53:53,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-14 05:53:53,174 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 482 transitions. [2022-12-14 05:53:53,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-12-14 05:53:53,175 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:53:53,175 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:53:53,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 05:53:53,175 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:53:53,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:53:53,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1912131001, now seen corresponding path program 1 times [2022-12-14 05:53:53,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:53:53,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150907644] [2022-12-14 05:53:53,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:53:53,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:53:53,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:53:53,280 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 05:53:53,280 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:53:53,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150907644] [2022-12-14 05:53:53,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150907644] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:53:53,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549906921] [2022-12-14 05:53:53,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:53:53,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:53:53,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59d6922-3745-4099-8b23-5455aaa38dbc/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:53:53,282 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59d6922-3745-4099-8b23-5455aaa38dbc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:53:53,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59d6922-3745-4099-8b23-5455aaa38dbc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 05:53:53,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:53:53,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-14 05:53:53,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:53:53,430 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:53:53,430 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:53:53,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [549906921] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:53:53,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 05:53:53,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 15 [2022-12-14 05:53:53,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596729937] [2022-12-14 05:53:53,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:53:53,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 05:53:53,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:53:53,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 05:53:53,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-12-14 05:53:53,432 INFO L87 Difference]: Start difference. First operand 414 states and 482 transitions. Second operand has 9 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 3 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2022-12-14 05:53:53,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:53:53,704 INFO L93 Difference]: Finished difference Result 843 states and 1013 transitions. [2022-12-14 05:53:53,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-14 05:53:53,705 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 3 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) Word has length 70 [2022-12-14 05:53:53,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:53:53,709 INFO L225 Difference]: With dead ends: 843 [2022-12-14 05:53:53,709 INFO L226 Difference]: Without dead ends: 599 [2022-12-14 05:53:53,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2022-12-14 05:53:53,711 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 55 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:53:53,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 559 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:53:53,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2022-12-14 05:53:53,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 589. [2022-12-14 05:53:53,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 411 states have (on average 1.2043795620437956) internal successors, (495), 439 states have internal predecessors, (495), 87 states have call successors, (87), 81 states have call predecessors, (87), 90 states have return successors, (109), 87 states have call predecessors, (109), 87 states have call successors, (109) [2022-12-14 05:53:53,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 691 transitions. [2022-12-14 05:53:53,745 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 691 transitions. Word has length 70 [2022-12-14 05:53:53,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:53:53,745 INFO L495 AbstractCegarLoop]: Abstraction has 589 states and 691 transitions. [2022-12-14 05:53:53,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 3 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2022-12-14 05:53:53,745 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 691 transitions. [2022-12-14 05:53:53,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-14 05:53:53,746 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:53:53,747 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:53:53,752 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59d6922-3745-4099-8b23-5455aaa38dbc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 05:53:53,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59d6922-3745-4099-8b23-5455aaa38dbc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:53:53,949 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:53:53,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:53:53,950 INFO L85 PathProgramCache]: Analyzing trace with hash -904135256, now seen corresponding path program 1 times [2022-12-14 05:53:53,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:53:53,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331286434] [2022-12-14 05:53:53,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:53:53,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:53:53,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:53:54,209 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 05:53:54,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:53:54,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331286434] [2022-12-14 05:53:54,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331286434] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:53:54,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383151478] [2022-12-14 05:53:54,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:53:54,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:53:54,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59d6922-3745-4099-8b23-5455aaa38dbc/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:53:54,211 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59d6922-3745-4099-8b23-5455aaa38dbc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:53:54,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59d6922-3745-4099-8b23-5455aaa38dbc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 05:53:54,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:53:54,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-14 05:53:54,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:53:54,333 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-14 05:53:54,333 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:53:54,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383151478] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:53:54,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 05:53:54,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13] total 16 [2022-12-14 05:53:54,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787826149] [2022-12-14 05:53:54,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:53:54,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 05:53:54,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:53:54,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 05:53:54,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2022-12-14 05:53:54,335 INFO L87 Difference]: Start difference. First operand 589 states and 691 transitions. Second operand has 9 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-14 05:53:54,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:53:54,584 INFO L93 Difference]: Finished difference Result 1099 states and 1305 transitions. [2022-12-14 05:53:54,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 05:53:54,584 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 73 [2022-12-14 05:53:54,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:53:54,585 INFO L225 Difference]: With dead ends: 1099 [2022-12-14 05:53:54,585 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 05:53:54,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2022-12-14 05:53:54,589 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 55 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:53:54,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 383 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:53:54,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 05:53:54,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 05:53:54,590 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) [2022-12-14 05:53:54,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 05:53:54,590 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 73 [2022-12-14 05:53:54,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:53:54,590 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 05:53:54,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-14 05:53:54,590 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 05:53:54,590 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 05:53:54,592 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 05:53:54,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59d6922-3745-4099-8b23-5455aaa38dbc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 05:53:54,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59d6922-3745-4099-8b23-5455aaa38dbc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-14 05:53:54,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 05:53:58,550 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 362 369) no Hoare annotation was computed. [2022-12-14 05:53:58,550 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 362 369) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 |old(~pumpRunning~0)|)) (= 0 ~systemActive~0)) [2022-12-14 05:53:58,551 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 295 301) no Hoare annotation was computed. [2022-12-14 05:53:58,551 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 295 301) the Hoare annotation is: true [2022-12-14 05:53:58,551 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 124 135) the Hoare annotation is: (let ((.cse1 (= |old(~methaneLevelCritical~0)| 0))) (let ((.cse5 (not (= ~pumpRunning~0 0))) (.cse4 (not .cse1)) (.cse2 (= ~methaneLevelCritical~0 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (not (<= 1 ~pumpRunning~0))) (.cse6 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 (not .cse2) .cse3) (or .cse4 .cse5 .cse2 .cse0 .cse6) (or .cse4 .cse5 .cse2 .cse6 (not (= 0 ~systemActive~0))) (or .cse4 .cse2 .cse0 .cse3 .cse6)))) [2022-12-14 05:53:58,551 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 124 135) no Hoare annotation was computed. [2022-12-14 05:53:58,551 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 845 874) no Hoare annotation was computed. [2022-12-14 05:53:58,551 INFO L899 garLoopResultBuilder]: For program point L859(lines 859 863) no Hoare annotation was computed. [2022-12-14 05:53:58,551 INFO L902 garLoopResultBuilder]: At program point L859-1(lines 859 863) the Hoare annotation is: true [2022-12-14 05:53:58,551 INFO L902 garLoopResultBuilder]: At program point L855-2(lines 855 869) the Hoare annotation is: true [2022-12-14 05:53:58,551 INFO L902 garLoopResultBuilder]: At program point L851(line 851) the Hoare annotation is: true [2022-12-14 05:53:58,551 INFO L899 garLoopResultBuilder]: For program point L851-1(line 851) no Hoare annotation was computed. [2022-12-14 05:53:58,552 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 845 874) the Hoare annotation is: true [2022-12-14 05:53:58,552 INFO L902 garLoopResultBuilder]: At program point L870(lines 845 874) the Hoare annotation is: true [2022-12-14 05:53:58,552 INFO L899 garLoopResultBuilder]: For program point L866(line 866) no Hoare annotation was computed. [2022-12-14 05:53:58,552 INFO L899 garLoopResultBuilder]: For program point L275-1(lines 274 293) no Hoare annotation was computed. [2022-12-14 05:53:58,552 INFO L899 garLoopResultBuilder]: For program point L337(lines 337 345) no Hoare annotation was computed. [2022-12-14 05:53:58,552 INFO L899 garLoopResultBuilder]: For program point L333(lines 333 350) no Hoare annotation was computed. [2022-12-14 05:53:58,552 INFO L895 garLoopResultBuilder]: At program point L375(line 375) the Hoare annotation is: (let ((.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse2 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (not (= |old(~pumpRunning~0)| 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1) (or .cse2 (= ~methAndRunningLastTime~0 0) .cse0 .cse1) (or .cse3 .cse2 .cse0) (or .cse3 (not (= 0 ~systemActive~0))))) [2022-12-14 05:53:58,552 INFO L895 garLoopResultBuilder]: At program point L375-1(line 375) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (= ~methAndRunningLastTime~0 0) .cse1 .cse2) (or .cse3 .cse0 .cse1) (or .cse1 .cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_isMethaneAlarm_#t~ret17#1| ~methaneLevelCritical~0))) (or .cse3 (not (= 0 ~systemActive~0))))) [2022-12-14 05:53:58,552 INFO L899 garLoopResultBuilder]: For program point L74(lines 74 84) no Hoare annotation was computed. [2022-12-14 05:53:58,553 INFO L895 garLoopResultBuilder]: At program point L70(lines 70 87) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse10 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse9 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~0#1| ~methaneLevelCritical~0))) (let ((.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse2 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse4 (= ~methAndRunningLastTime~0 0)) (.cse3 (not (= 1 ~systemActive~0))) (.cse6 (not (<= 1 |old(~pumpRunning~0)|))) (.cse8 (and .cse1 (or .cse0 .cse10 (= ~waterLevel~0 1)) .cse9)) (.cse7 (not (= 0 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (not (= |old(~waterLevel~0)| 1)) .cse3) (or .cse0 .cse2 .cse4 .cse3 .cse5) (or .cse2 .cse4 .cse3 .cse6 .cse5) (or .cse0 .cse2 .cse4 .cse5 .cse7) (or .cse0 .cse2 .cse8 .cse3 (and (<= 1 ~pumpRunning~0) .cse4 .cse9 .cse10)) (let ((.cse11 (= |timeShift_processEnvironment_~tmp~3#1| ~methaneLevelCritical~0))) (or .cse3 (and .cse1 .cse9 .cse11 (not (= |timeShift_processEnvironment_~tmp~3#1| 0))) .cse6 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse9 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~0#1| 0) .cse11))) (or .cse0 .cse8 .cse7)))) [2022-12-14 05:53:58,553 INFO L895 garLoopResultBuilder]: At program point L70-1(lines 62 90) the Hoare annotation is: (let ((.cse15 (= ~methaneLevelCritical~0 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse13 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse7 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (= ~pumpRunning~0 0)) (.cse4 (= ~methAndRunningLastTime~0 0)) (.cse9 (or .cse0 .cse13 (= ~waterLevel~0 1))) (.cse14 (= 1 ~systemActive~0)) (.cse12 (<= 1 ~pumpRunning~0)) (.cse16 (not .cse15)) (.cse5 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~0#1| ~methaneLevelCritical~0))) (let ((.cse8 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~0#1| 0)) (.cse2 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse10 (and .cse12 .cse16 .cse5 .cse13)) (.cse11 (and .cse7 .cse1 .cse4 .cse9 .cse14 .cse16 .cse5)) (.cse3 (not .cse14))) (and (or .cse0 .cse1 .cse2 (not (= |old(~waterLevel~0)| 1)) .cse3) (let ((.cse6 (= |timeShift_processEnvironment_~tmp~3#1| ~methaneLevelCritical~0))) (or (and .cse1 .cse4 .cse5 .cse6 (not (= |timeShift_processEnvironment_~tmp~3#1| 0))) .cse3 (not (<= 1 |old(~pumpRunning~0)|)) (and .cse7 .cse4 .cse5 .cse8 .cse6))) (or .cse0 (and .cse1 .cse4 .cse9 .cse5) (not (= 0 ~systemActive~0))) (or .cse0 .cse2 .cse10 .cse11 (and .cse12 .cse4 .cse8 .cse13) .cse3 (and .cse7 .cse1 .cse4 .cse9 .cse14 .cse8)) (or .cse0 .cse2 .cse10 .cse11 .cse15 .cse3))))) [2022-12-14 05:53:58,553 INFO L895 garLoopResultBuilder]: At program point L343(line 343) the Hoare annotation is: (let ((.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse2 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~methaneLevelCritical~0 0) (= |timeShift_processEnvironment_~tmp~3#1| ~methaneLevelCritical~0))) (or .cse2 (= ~methAndRunningLastTime~0 0) .cse0 .cse1) (or .cse3 .cse2 .cse0) (or .cse3 (not (= 0 ~systemActive~0))))) [2022-12-14 05:53:58,553 INFO L895 garLoopResultBuilder]: At program point L339(line 339) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (= ~methAndRunningLastTime~0 0) .cse1 .cse2) (or .cse3 .cse0 .cse1) (or .cse1 .cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_processEnvironment_~tmp~3#1| ~methaneLevelCritical~0) (not (= |timeShift_processEnvironment_~tmp~3#1| 0)))) (or .cse3 (not (= 0 ~systemActive~0))))) [2022-12-14 05:53:58,554 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 81) no Hoare annotation was computed. [2022-12-14 05:53:58,554 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 271 294) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (= 0 ~systemActive~0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse4 (= ~methAndRunningLastTime~0 0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse7 (not (<= 1 |old(~pumpRunning~0)|))) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 .cse2 (and .cse3 .cse4 .cse5)) (or .cse0 (and .cse3 .cse5) .cse6) (or .cse0 .cse1 .cse4 (not (= ~methaneLevelCritical~0 0)) .cse6) (or .cse1 .cse4 .cse2 .cse7) (or .cse2 .cse7 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse5)))) [2022-12-14 05:53:58,554 INFO L895 garLoopResultBuilder]: At program point L839(line 839) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|))) (or .cse1 (not (= |old(~methAndRunningLastTime~0)| 0)) .cse0) (or .cse1 (not (= 0 ~systemActive~0))))) [2022-12-14 05:53:58,554 INFO L895 garLoopResultBuilder]: At program point L348(line 348) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|))) (or .cse1 (not (= |old(~methAndRunningLastTime~0)| 0)) .cse0 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (or (= |old(~waterLevel~0)| ~waterLevel~0) (= ~waterLevel~0 1)))) (or .cse1 (not (= 0 ~systemActive~0))))) [2022-12-14 05:53:58,554 INFO L895 garLoopResultBuilder]: At program point L348-1(lines 329 353) the Hoare annotation is: (let ((.cse4 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (= 1 ~systemActive~0))) (.cse7 (not (<= 1 |old(~pumpRunning~0)|))) (.cse6 (= ~pumpRunning~0 0))) (and (let ((.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (= ~waterLevel~0 1))) (or (and (<= 1 ~pumpRunning~0) (not .cse0) .cse1 .cse2) .cse3 .cse4 .cse5 (and .cse6 .cse1 (or .cse2 .cse0)))) (or .cse4 .cse1 .cse5 .cse7) (or .cse3 (not (= 0 ~systemActive~0))) (let ((.cse8 (= |timeShift_processEnvironment_~tmp~3#1| ~methaneLevelCritical~0))) (or .cse5 .cse7 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~methaneLevelCritical~0 0) .cse8) (and .cse6 .cse8 (not (= |timeShift_processEnvironment_~tmp~3#1| 0))))))) [2022-12-14 05:53:58,554 INFO L899 garLoopResultBuilder]: For program point L282-1(lines 282 288) no Hoare annotation was computed. [2022-12-14 05:53:58,554 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 271 294) no Hoare annotation was computed. [2022-12-14 05:53:58,555 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 839) no Hoare annotation was computed. [2022-12-14 05:53:58,555 INFO L895 garLoopResultBuilder]: At program point L68(line 68) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (= ~waterLevel~0 1))) (let ((.cse2 (or .cse0 .cse6 .cse4)) (.cse3 (not (= 0 ~systemActive~0))) (.cse7 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse5 (= ~methAndRunningLastTime~0 0)) (.cse8 (not (= 1 ~systemActive~0))) (.cse10 (not (<= 1 |old(~pumpRunning~0)|))) (.cse9 (= ~methaneLevelCritical~0 0)) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 (and .cse1 .cse2) .cse3) (or (and (<= 1 ~pumpRunning~0) (not .cse4) .cse5 .cse6) .cse0 .cse7 .cse8 (and .cse1 .cse5 .cse2)) (or .cse0 .cse7 .cse5 (not .cse9) .cse3) (or .cse7 .cse5 .cse8 .cse10) (let ((.cse11 (= |timeShift_processEnvironment_~tmp~3#1| ~methaneLevelCritical~0))) (or .cse8 .cse10 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse9 .cse11) (and .cse1 .cse11 (not (= |timeShift_processEnvironment_~tmp~3#1| 0)))))))) [2022-12-14 05:53:58,555 INFO L899 garLoopResultBuilder]: For program point L68-1(line 68) no Hoare annotation was computed. [2022-12-14 05:53:58,555 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 136 144) the Hoare annotation is: true [2022-12-14 05:53:58,555 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 136 144) no Hoare annotation was computed. [2022-12-14 05:53:58,555 INFO L902 garLoopResultBuilder]: At program point L259(lines 196 263) the Hoare annotation is: true [2022-12-14 05:53:58,555 INFO L899 garLoopResultBuilder]: For program point L226(lines 226 232) no Hoare annotation was computed. [2022-12-14 05:53:58,555 INFO L899 garLoopResultBuilder]: For program point L226-1(lines 226 232) no Hoare annotation was computed. [2022-12-14 05:53:58,555 INFO L899 garLoopResultBuilder]: For program point L449(lines 449 455) no Hoare annotation was computed. [2022-12-14 05:53:58,555 INFO L895 garLoopResultBuilder]: At program point L449-1(lines 449 455) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (not (= 0 ~systemActive~0))) (and .cse0 (= ~methAndRunningLastTime~0 0) .cse1))) [2022-12-14 05:53:58,556 INFO L895 garLoopResultBuilder]: At program point L218(line 218) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (= 1 ~systemActive~0)) (.cse4 (= ~pumpRunning~0 0)) (.cse3 (= ~methAndRunningLastTime~0 0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2) (and .cse0 .cse3 .cse1 .cse2) (and .cse4 .cse3 .cse1 .cse2) (and .cse4 .cse3 .cse2 (= 0 ~systemActive~0)))) [2022-12-14 05:53:58,556 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 05:53:58,556 INFO L895 garLoopResultBuilder]: At program point L256(lines 205 257) the Hoare annotation is: false [2022-12-14 05:53:58,556 INFO L899 garLoopResultBuilder]: For program point L244(lines 244 250) no Hoare annotation was computed. [2022-12-14 05:53:58,556 INFO L895 garLoopResultBuilder]: At program point L244-2(lines 236 251) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 1 ~pumpRunning~0) .cse0 .cse1) (and .cse2 .cse1 (= 0 ~systemActive~0)) (and .cse2 (= ~methAndRunningLastTime~0 0) .cse0 .cse1))) [2022-12-14 05:53:58,556 INFO L899 garLoopResultBuilder]: For program point L207(lines 206 255) no Hoare annotation was computed. [2022-12-14 05:53:58,556 INFO L895 garLoopResultBuilder]: At program point L236(lines 236 251) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ~methAndRunningLastTime~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 1 ~pumpRunning~0) .cse0 .cse1) (and .cse2 .cse3 .cse0 .cse1) (and .cse2 .cse3 .cse1 (= 0 ~systemActive~0)))) [2022-12-14 05:53:58,556 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2022-12-14 05:53:58,556 INFO L895 garLoopResultBuilder]: At program point L228(line 228) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (= 1 ~systemActive~0)) (.cse4 (= ~pumpRunning~0 0)) (.cse3 (= ~methAndRunningLastTime~0 0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2) (and .cse0 .cse3 .cse1 .cse2) (and .cse4 .cse3 .cse1 .cse2) (and .cse4 .cse3 .cse2 (= 0 ~systemActive~0)))) [2022-12-14 05:53:58,556 INFO L895 garLoopResultBuilder]: At program point L451(line 451) the Hoare annotation is: (and (<= 1 ~pumpRunning~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (not (= 0 ~systemActive~0))) [2022-12-14 05:53:58,556 INFO L895 garLoopResultBuilder]: At program point L930(lines 930 937) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-12-14 05:53:58,557 INFO L902 garLoopResultBuilder]: At program point L930-2(lines 930 937) the Hoare annotation is: true [2022-12-14 05:53:58,557 INFO L895 garLoopResultBuilder]: At program point L253(lines 206 255) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (= 1 ~systemActive~0)) (.cse4 (= ~pumpRunning~0 0)) (.cse3 (= ~methAndRunningLastTime~0 0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2) (and .cse0 .cse3 .cse1 .cse2) (and .cse4 .cse3 .cse1 .cse2) (and .cse4 .cse3 .cse2 (= 0 ~systemActive~0)))) [2022-12-14 05:53:58,557 INFO L899 garLoopResultBuilder]: For program point L216(lines 216 222) no Hoare annotation was computed. [2022-12-14 05:53:58,557 INFO L899 garLoopResultBuilder]: For program point L216-1(lines 216 222) no Hoare annotation was computed. [2022-12-14 05:53:58,557 INFO L899 garLoopResultBuilder]: For program point L322-1(lines 303 327) no Hoare annotation was computed. [2022-12-14 05:53:58,557 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 303 327) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (= ~methAndRunningLastTime~0 0))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (not (= ~methaneLevelCritical~0 0))))) [2022-12-14 05:53:58,557 INFO L895 garLoopResultBuilder]: At program point L317(line 317) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (and (= ~pumpRunning~0 0) (or (not (= ~waterLevel~0 1)) (= |processEnvironment__wrappee__highWaterSensor_~tmp~2#1| 0))) (not (= ~methAndRunningLastTime~0 0))))) [2022-12-14 05:53:58,557 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 303 327) no Hoare annotation was computed. [2022-12-14 05:53:58,557 INFO L895 garLoopResultBuilder]: At program point L311(lines 311 319) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (and (= ~pumpRunning~0 0) (or (not (= ~waterLevel~0 1)) (= |processEnvironment__wrappee__highWaterSensor_~tmp~2#1| 0))) (not (= ~methAndRunningLastTime~0 0))))) [2022-12-14 05:53:58,557 INFO L895 garLoopResultBuilder]: At program point L307(lines 307 324) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (= ~methAndRunningLastTime~0 0))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (not (= ~methaneLevelCritical~0 0))))) [2022-12-14 05:53:58,558 INFO L895 garLoopResultBuilder]: At program point L322(line 322) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (= ~methAndRunningLastTime~0 0))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (not (= ~methaneLevelCritical~0 0))))) [2022-12-14 05:53:58,558 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 112 123) no Hoare annotation was computed. [2022-12-14 05:53:58,558 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 112 123) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse4 (not (<= 1 ~pumpRunning~0))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse2 .cse3 (not (= 0 ~systemActive~0))) (or (= ~methaneLevelCritical~0 0) .cse1 .cse4 .cse2) (or .cse1 .cse4 .cse2 .cse3))) [2022-12-14 05:53:58,560 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:53:58,562 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 05:53:58,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 05:53:58 BoogieIcfgContainer [2022-12-14 05:53:58,578 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 05:53:58,579 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 05:53:58,579 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 05:53:58,579 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 05:53:58,579 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:53:49" (3/4) ... [2022-12-14 05:53:58,581 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 05:53:58,585 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-12-14 05:53:58,585 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-12-14 05:53:58,585 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-12-14 05:53:58,585 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-12-14 05:53:58,585 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-12-14 05:53:58,585 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-12-14 05:53:58,585 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-12-14 05:53:58,585 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-12-14 05:53:58,589 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 42 nodes and edges [2022-12-14 05:53:58,590 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-12-14 05:53:58,590 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-14 05:53:58,590 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 05:53:58,590 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 05:53:58,608 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(methaneLevelCritical == 0)) || !(0 == systemActive))) && (((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning)))) && ((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (pumpRunning == \old(pumpRunning) && \old(waterLevel) == waterLevel)) [2022-12-14 05:53:58,608 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((1 <= pumpRunning && !(waterLevel == 1)) && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel) || !(\old(pumpRunning) == 0)) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && (\old(waterLevel) == waterLevel || waterLevel == 1))) && (((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning)))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || ((pumpRunning == \old(pumpRunning) && methaneLevelCritical == 0) && tmp == methaneLevelCritical)) || ((pumpRunning == 0 && tmp == methaneLevelCritical) && !(tmp == 0))) [2022-12-14 05:53:58,608 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methAndRunningLastTime == 0)) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) [2022-12-14 05:53:58,609 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(methaneLevelCritical == 0)) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || ((pumpRunning == 0 && ((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && tmp == methaneLevelCritical)) || !(1 == systemActive)) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && tmp == methaneLevelCritical) && \old(waterLevel) == waterLevel))) && (((!(1 == systemActive) || (((pumpRunning == 0 && tmp == methaneLevelCritical) && tmp == methaneLevelCritical) && !(tmp == 0))) || !(1 <= \old(pumpRunning))) || (((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && tmp == 0) && tmp == methaneLevelCritical))) && ((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && ((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && tmp == methaneLevelCritical)) || !(0 == systemActive)) [2022-12-14 05:53:58,609 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive))) && ((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (pumpRunning == \old(pumpRunning) && aux-isMethaneLevelCritical()-aux == methaneLevelCritical))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2022-12-14 05:53:58,609 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) && (((((((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == methaneLevelCritical) && tmp == methaneLevelCritical) && !(tmp == 0)) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || ((((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && tmp == methaneLevelCritical) && tmp == 0) && tmp == methaneLevelCritical))) && ((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && ((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && tmp == methaneLevelCritical)) || !(0 == systemActive))) && ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (((1 <= pumpRunning && !(methaneLevelCritical == 0)) && tmp == methaneLevelCritical) && \old(waterLevel) == waterLevel)) || ((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0) && ((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && 1 == systemActive) && !(methaneLevelCritical == 0)) && tmp == methaneLevelCritical)) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && tmp == 0) && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0) && ((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && 1 == systemActive) && tmp == 0))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (((1 <= pumpRunning && !(methaneLevelCritical == 0)) && tmp == methaneLevelCritical) && \old(waterLevel) == waterLevel)) || ((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0) && ((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && 1 == systemActive) && !(methaneLevelCritical == 0)) && tmp == methaneLevelCritical)) || methaneLevelCritical == 0) || !(1 == systemActive)) [2022-12-14 05:53:58,609 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || !(1 <= \old(pumpRunning))) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2022-12-14 05:53:58,609 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (pumpRunning == 0 && (!(waterLevel == 1) || tmp == 0))) || !(methAndRunningLastTime == 0)) [2022-12-14 05:53:58,630 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59d6922-3745-4099-8b23-5455aaa38dbc/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 05:53:58,630 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 05:53:58,631 INFO L158 Benchmark]: Toolchain (without parser) took 9728.72ms. Allocated memory was 123.7MB in the beginning and 184.5MB in the end (delta: 60.8MB). Free memory was 89.6MB in the beginning and 50.5MB in the end (delta: 39.1MB). Peak memory consumption was 103.1MB. Max. memory is 16.1GB. [2022-12-14 05:53:58,631 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 123.7MB. Free memory is still 66.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 05:53:58,632 INFO L158 Benchmark]: CACSL2BoogieTranslator took 331.97ms. Allocated memory is still 123.7MB. Free memory was 89.1MB in the beginning and 70.7MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 05:53:58,632 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.77ms. Allocated memory is still 123.7MB. Free memory was 70.7MB in the beginning and 68.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 05:53:58,632 INFO L158 Benchmark]: Boogie Preprocessor took 19.40ms. Allocated memory is still 123.7MB. Free memory was 68.6MB in the beginning and 66.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 05:53:58,633 INFO L158 Benchmark]: RCFGBuilder took 406.71ms. Allocated memory was 123.7MB in the beginning and 153.1MB in the end (delta: 29.4MB). Free memory was 66.8MB in the beginning and 117.7MB in the end (delta: -50.9MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. [2022-12-14 05:53:58,633 INFO L158 Benchmark]: TraceAbstraction took 8881.32ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 116.6MB in the beginning and 55.7MB in the end (delta: 60.9MB). Peak memory consumption was 100.5MB. Max. memory is 16.1GB. [2022-12-14 05:53:58,633 INFO L158 Benchmark]: Witness Printer took 51.72ms. Allocated memory is still 184.5MB. Free memory was 55.7MB in the beginning and 50.5MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-14 05:53:58,635 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 123.7MB. Free memory is still 66.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 331.97ms. Allocated memory is still 123.7MB. Free memory was 89.1MB in the beginning and 70.7MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.77ms. Allocated memory is still 123.7MB. Free memory was 70.7MB in the beginning and 68.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.40ms. Allocated memory is still 123.7MB. Free memory was 68.6MB in the beginning and 66.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 406.71ms. Allocated memory was 123.7MB in the beginning and 153.1MB in the end (delta: 29.4MB). Free memory was 66.8MB in the beginning and 117.7MB in the end (delta: -50.9MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. * TraceAbstraction took 8881.32ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 116.6MB in the beginning and 55.7MB in the end (delta: 60.9MB). Peak memory consumption was 100.5MB. Max. memory is 16.1GB. * Witness Printer took 51.72ms. Allocated memory is still 184.5MB. Free memory was 55.7MB in the beginning and 50.5MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 839]: 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, 66 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.8s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 850 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 824 mSDsluCounter, 2515 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1652 mSDsCounter, 224 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1582 IncrementalHoareTripleChecker+Invalid, 1806 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 224 mSolverCounterUnsat, 863 mSDtfsCounter, 1582 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 328 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=604occurred in iteration=6, InterpolantAutomatonStates: 93, 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, 12 MinimizatonAttempts, 218 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 38 LocationsWithAnnotation, 1714 PreInvPairs, 1915 NumberOfFragments, 1685 HoareAnnotationTreeSize, 1714 FomulaSimplifications, 3822 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 38 FomulaSimplificationsInter, 25307 FormulaSimplificationTreeSizeReductionInter, 3.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 744 NumberOfCodeBlocks, 744 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 729 ConstructedInterpolants, 0 QuantifiedInterpolants, 1823 SizeOfPredicates, 13 NumberOfNonLiveVariables, 920 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 231/256 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: 206]: Loop Invariant Derived loop invariant: (((((1 <= pumpRunning && 1 == systemActive) && !(methaneLevelCritical == 0)) && splverifierCounter == 0) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && 1 == systemActive) && splverifierCounter == 0)) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && splverifierCounter == 0)) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && splverifierCounter == 0) && 0 == systemActive) - InvariantResult [Line: 205]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 196]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 845]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 307]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methAndRunningLastTime == 0)) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 329]: Loop Invariant Derived loop invariant: (((((((((1 <= pumpRunning && !(waterLevel == 1)) && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel) || !(\old(pumpRunning) == 0)) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && (\old(waterLevel) == waterLevel || waterLevel == 1))) && (((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning)))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || ((pumpRunning == \old(pumpRunning) && methaneLevelCritical == 0) && tmp == methaneLevelCritical)) || ((pumpRunning == 0 && tmp == methaneLevelCritical) && !(tmp == 0))) - InvariantResult [Line: 236]: Loop Invariant Derived loop invariant: (((1 <= pumpRunning && 1 == systemActive) && splverifierCounter == 0) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && splverifierCounter == 0)) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && splverifierCounter == 0) && 0 == systemActive) - InvariantResult [Line: 449]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && splverifierCounter == 0) && !(0 == systemActive)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && splverifierCounter == 0) - InvariantResult [Line: 839]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || !(1 <= \old(pumpRunning))) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 930]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: (((((((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(methaneLevelCritical == 0)) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || ((pumpRunning == 0 && ((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && tmp == methaneLevelCritical)) || !(1 == systemActive)) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && tmp == methaneLevelCritical) && \old(waterLevel) == waterLevel))) && (((!(1 == systemActive) || (((pumpRunning == 0 && tmp == methaneLevelCritical) && tmp == methaneLevelCritical) && !(tmp == 0))) || !(1 <= \old(pumpRunning))) || (((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && tmp == 0) && tmp == methaneLevelCritical))) && ((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && ((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && tmp == methaneLevelCritical)) || !(0 == systemActive)) - InvariantResult [Line: 855]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) && (((((((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == methaneLevelCritical) && tmp == methaneLevelCritical) && !(tmp == 0)) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || ((((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && tmp == methaneLevelCritical) && tmp == 0) && tmp == methaneLevelCritical))) && ((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && ((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && tmp == methaneLevelCritical)) || !(0 == systemActive))) && ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (((1 <= pumpRunning && !(methaneLevelCritical == 0)) && tmp == methaneLevelCritical) && \old(waterLevel) == waterLevel)) || ((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0) && ((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && 1 == systemActive) && !(methaneLevelCritical == 0)) && tmp == methaneLevelCritical)) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && tmp == 0) && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0) && ((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && 1 == systemActive) && tmp == 0))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (((1 <= pumpRunning && !(methaneLevelCritical == 0)) && tmp == methaneLevelCritical) && \old(waterLevel) == waterLevel)) || ((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0) && ((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && 1 == systemActive) && !(methaneLevelCritical == 0)) && tmp == methaneLevelCritical)) || methaneLevelCritical == 0) || !(1 == systemActive)) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 930]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 271]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(methaneLevelCritical == 0)) || !(0 == systemActive))) && (((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning)))) && ((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (pumpRunning == \old(pumpRunning) && \old(waterLevel) == waterLevel)) - InvariantResult [Line: 311]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (pumpRunning == 0 && (!(waterLevel == 1) || tmp == 0))) || !(methAndRunningLastTime == 0)) - InvariantResult [Line: 375]: Loop Invariant Derived loop invariant: (((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive))) && ((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (pumpRunning == \old(pumpRunning) && aux-isMethaneLevelCritical()-aux == methaneLevelCritical))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) RESULT: Ultimate proved your program to be correct! [2022-12-14 05:53:58,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59d6922-3745-4099-8b23-5455aaa38dbc/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE