./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product29.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9b1763-0a48-49fd-9eb6-8a94caf89c53/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9b1763-0a48-49fd-9eb6-8a94caf89c53/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_6f9b1763-0a48-49fd-9eb6-8a94caf89c53/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9b1763-0a48-49fd-9eb6-8a94caf89c53/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product29.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9b1763-0a48-49fd-9eb6-8a94caf89c53/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_6f9b1763-0a48-49fd-9eb6-8a94caf89c53/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 a52f3030559d2895f2e87e8df462d73474ae0a795c3864102f9df18ea4363ab3 --- 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 10:00:47,666 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:00:47,667 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:00:47,685 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:00:47,686 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:00:47,686 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:00:47,688 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:00:47,689 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:00:47,691 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:00:47,691 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:00:47,692 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:00:47,693 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:00:47,694 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:00:47,695 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:00:47,696 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:00:47,697 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:00:47,698 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:00:47,698 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:00:47,700 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:00:47,702 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:00:47,703 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:00:47,704 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:00:47,705 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:00:47,706 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:00:47,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:00:47,710 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:00:47,710 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:00:47,711 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:00:47,711 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:00:47,712 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:00:47,712 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:00:47,713 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:00:47,714 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:00:47,714 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:00:47,715 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:00:47,715 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:00:47,716 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:00:47,716 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:00:47,716 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:00:47,717 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:00:47,717 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:00:47,718 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9b1763-0a48-49fd-9eb6-8a94caf89c53/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 10:00:47,737 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:00:47,737 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:00:47,737 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:00:47,737 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:00:47,738 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:00:47,738 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:00:47,738 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:00:47,738 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:00:47,739 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:00:47,739 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 10:00:47,739 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:00:47,739 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:00:47,739 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 10:00:47,739 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 10:00:47,740 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:00:47,740 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 10:00:47,740 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 10:00:47,740 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 10:00:47,741 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:00:47,741 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 10:00:47,741 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 10:00:47,741 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 10:00:47,741 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:00:47,741 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 10:00:47,742 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:00:47,742 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 10:00:47,742 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 10:00:47,742 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 10:00:47,742 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:00:47,742 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 10:00:47,743 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:00:47,743 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:00:47,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:00:47,743 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:00:47,743 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 10:00:47,743 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:00:47,743 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 10:00:47,744 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 10:00:47,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 10:00:47,744 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 10:00:47,744 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:00:47,744 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_6f9b1763-0a48-49fd-9eb6-8a94caf89c53/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9b1763-0a48-49fd-9eb6-8a94caf89c53/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a52f3030559d2895f2e87e8df462d73474ae0a795c3864102f9df18ea4363ab3 [2022-12-14 10:00:47,946 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:00:47,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:00:47,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:00:47,968 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:00:47,968 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:00:47,969 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9b1763-0a48-49fd-9eb6-8a94caf89c53/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/minepump_spec2_product29.cil.c [2022-12-14 10:00:50,596 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:00:50,769 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:00:50,770 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9b1763-0a48-49fd-9eb6-8a94caf89c53/sv-benchmarks/c/product-lines/minepump_spec2_product29.cil.c [2022-12-14 10:00:50,778 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9b1763-0a48-49fd-9eb6-8a94caf89c53/bin/utaipan-gh47qXpMRh/data/1852bdf14/65ae7050af7d4a0da57d9103f3c7ff25/FLAG701a81abb [2022-12-14 10:00:51,153 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9b1763-0a48-49fd-9eb6-8a94caf89c53/bin/utaipan-gh47qXpMRh/data/1852bdf14/65ae7050af7d4a0da57d9103f3c7ff25 [2022-12-14 10:00:51,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:00:51,157 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:00:51,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:00:51,159 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:00:51,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:00:51,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:00:51" (1/1) ... [2022-12-14 10:00:51,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73b0f992 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:00:51, skipping insertion in model container [2022-12-14 10:00:51,166 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:00:51" (1/1) ... [2022-12-14 10:00:51,174 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:00:51,210 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:00:51,330 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_6f9b1763-0a48-49fd-9eb6-8a94caf89c53/sv-benchmarks/c/product-lines/minepump_spec2_product29.cil.c[5259,5272] [2022-12-14 10:00:51,375 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:00:51,384 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:00:51,400 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_6f9b1763-0a48-49fd-9eb6-8a94caf89c53/sv-benchmarks/c/product-lines/minepump_spec2_product29.cil.c[5259,5272] [2022-12-14 10:00:51,427 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:00:51,438 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:00:51,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:00:51 WrapperNode [2022-12-14 10:00:51,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:00:51,440 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:00:51,440 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:00:51,440 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:00:51,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:00:51" (1/1) ... [2022-12-14 10:00:51,456 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:00:51" (1/1) ... [2022-12-14 10:00:51,479 INFO L138 Inliner]: procedures = 55, calls = 100, calls flagged for inlining = 20, calls inlined = 16, statements flattened = 174 [2022-12-14 10:00:51,479 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:00:51,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:00:51,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:00:51,480 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:00:51,488 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:00:51" (1/1) ... [2022-12-14 10:00:51,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:00:51" (1/1) ... [2022-12-14 10:00:51,490 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:00:51" (1/1) ... [2022-12-14 10:00:51,491 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:00:51" (1/1) ... [2022-12-14 10:00:51,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:00:51" (1/1) ... [2022-12-14 10:00:51,499 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:00:51" (1/1) ... [2022-12-14 10:00:51,500 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:00:51" (1/1) ... [2022-12-14 10:00:51,502 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:00:51" (1/1) ... [2022-12-14 10:00:51,504 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:00:51,505 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:00:51,505 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:00:51,505 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:00:51,506 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:00:51" (1/1) ... [2022-12-14 10:00:51,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:00:51,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9b1763-0a48-49fd-9eb6-8a94caf89c53/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:00:51,537 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9b1763-0a48-49fd-9eb6-8a94caf89c53/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:00:51,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9b1763-0a48-49fd-9eb6-8a94caf89c53/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:00:51,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:00:51,568 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-12-14 10:00:51,568 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-12-14 10:00:51,568 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-12-14 10:00:51,568 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-12-14 10:00:51,568 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-12-14 10:00:51,568 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-12-14 10:00:51,568 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-12-14 10:00:51,568 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-12-14 10:00:51,569 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-12-14 10:00:51,569 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-12-14 10:00:51,569 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-12-14 10:00:51,569 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-12-14 10:00:51,569 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-12-14 10:00:51,569 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-12-14 10:00:51,569 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-12-14 10:00:51,569 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-12-14 10:00:51,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 10:00:51,569 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-12-14 10:00:51,569 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-12-14 10:00:51,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:00:51,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:00:51,629 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:00:51,630 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:00:51,812 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:00:51,904 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:00:51,904 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 10:00:51,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:00:51 BoogieIcfgContainer [2022-12-14 10:00:51,907 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:00:51,910 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:00:51,910 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:00:51,913 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:00:51,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:00:51" (1/3) ... [2022-12-14 10:00:51,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cafa369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:00:51, skipping insertion in model container [2022-12-14 10:00:51,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:00:51" (2/3) ... [2022-12-14 10:00:51,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cafa369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:00:51, skipping insertion in model container [2022-12-14 10:00:51,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:00:51" (3/3) ... [2022-12-14 10:00:51,916 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product29.cil.c [2022-12-14 10:00:51,933 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:00:51,933 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 10:00:51,981 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:00:51,988 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;@72bde29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:00:51,988 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 10:00:51,992 INFO L276 IsEmpty]: Start isEmpty. Operand has 66 states, 40 states have (on average 1.4) internal successors, (56), 48 states have internal predecessors, (56), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2022-12-14 10:00:52,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 10:00:52,001 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:00:52,002 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 10:00:52,002 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:00:52,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:00:52,007 INFO L85 PathProgramCache]: Analyzing trace with hash 214553379, now seen corresponding path program 1 times [2022-12-14 10:00:52,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:00:52,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883153626] [2022-12-14 10:00:52,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:00:52,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:00:52,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:00:52,177 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 10:00:52,177 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:00:52,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883153626] [2022-12-14 10:00:52,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883153626] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:00:52,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:00:52,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 10:00:52,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788023617] [2022-12-14 10:00:52,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:00:52,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 10:00:52,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:00:52,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 10:00:52,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 10:00:52,213 INFO L87 Difference]: Start difference. First operand has 66 states, 40 states have (on average 1.4) internal successors, (56), 48 states have internal predecessors, (56), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) 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 10:00:52,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:00:52,272 INFO L93 Difference]: Finished difference Result 130 states and 173 transitions. [2022-12-14 10:00:52,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 10:00:52,274 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 10:00:52,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:00:52,280 INFO L225 Difference]: With dead ends: 130 [2022-12-14 10:00:52,280 INFO L226 Difference]: Without dead ends: 61 [2022-12-14 10:00:52,282 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 10:00:52,285 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:00:52,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:00:52,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-12-14 10:00:52,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-12-14 10:00:52,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 44 states have internal predecessors, (48), 15 states have call successors, (15), 9 states have call predecessors, (15), 8 states have return successors, (14), 10 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 10:00:52,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 77 transitions. [2022-12-14 10:00:52,317 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 77 transitions. Word has length 17 [2022-12-14 10:00:52,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:00:52,318 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 77 transitions. [2022-12-14 10:00:52,318 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 10:00:52,318 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 77 transitions. [2022-12-14 10:00:52,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 10:00:52,327 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:00:52,327 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 10:00:52,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 10:00:52,328 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:00:52,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:00:52,328 INFO L85 PathProgramCache]: Analyzing trace with hash 602196989, now seen corresponding path program 1 times [2022-12-14 10:00:52,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:00:52,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302905647] [2022-12-14 10:00:52,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:00:52,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:00:52,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:00:52,422 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 10:00:52,422 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:00:52,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302905647] [2022-12-14 10:00:52,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302905647] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:00:52,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:00:52,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:00:52,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326401745] [2022-12-14 10:00:52,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:00:52,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:00:52,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:00:52,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:00:52,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:00:52,427 INFO L87 Difference]: Start difference. First operand 61 states and 77 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 10:00:52,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:00:52,466 INFO L93 Difference]: Finished difference Result 99 states and 125 transitions. [2022-12-14 10:00:52,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:00:52,467 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 10:00:52,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:00:52,468 INFO L225 Difference]: With dead ends: 99 [2022-12-14 10:00:52,468 INFO L226 Difference]: Without dead ends: 53 [2022-12-14 10:00:52,469 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 10:00:52,470 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 7 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:00:52,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 97 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:00:52,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-12-14 10:00:52,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-12-14 10:00:52,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 32 states have (on average 1.3125) internal successors, (42), 39 states have internal predecessors, (42), 12 states have call successors, (12), 8 states have call predecessors, (12), 8 states have return successors, (12), 8 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 10:00:52,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 66 transitions. [2022-12-14 10:00:52,479 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 66 transitions. Word has length 18 [2022-12-14 10:00:52,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:00:52,479 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 66 transitions. [2022-12-14 10:00:52,479 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 10:00:52,480 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 66 transitions. [2022-12-14 10:00:52,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 10:00:52,480 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:00:52,480 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:00:52,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 10:00:52,481 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:00:52,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:00:52,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1506911410, now seen corresponding path program 1 times [2022-12-14 10:00:52,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:00:52,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286614274] [2022-12-14 10:00:52,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:00:52,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:00:52,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:00:52,558 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 10:00:52,558 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:00:52,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286614274] [2022-12-14 10:00:52,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286614274] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:00:52,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:00:52,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:00:52,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652412333] [2022-12-14 10:00:52,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:00:52,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:00:52,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:00:52,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:00:52,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:00:52,561 INFO L87 Difference]: Start difference. First operand 53 states and 66 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:00:52,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:00:52,593 INFO L93 Difference]: Finished difference Result 104 states and 131 transitions. [2022-12-14 10:00:52,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:00:52,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-12-14 10:00:52,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:00:52,594 INFO L225 Difference]: With dead ends: 104 [2022-12-14 10:00:52,595 INFO L226 Difference]: Without dead ends: 53 [2022-12-14 10:00:52,595 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 10:00:52,596 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 55 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:00:52,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 51 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:00:52,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-12-14 10:00:52,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-12-14 10:00:52,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 32 states have (on average 1.28125) internal successors, (41), 39 states have internal predecessors, (41), 12 states have call successors, (12), 8 states have call predecessors, (12), 8 states have return successors, (12), 8 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 10:00:52,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 65 transitions. [2022-12-14 10:00:52,606 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 65 transitions. Word has length 20 [2022-12-14 10:00:52,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:00:52,606 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 65 transitions. [2022-12-14 10:00:52,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:00:52,606 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 65 transitions. [2022-12-14 10:00:52,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 10:00:52,607 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:00:52,607 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:00:52,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 10:00:52,608 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:00:52,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:00:52,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1637559933, now seen corresponding path program 1 times [2022-12-14 10:00:52,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:00:52,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410589037] [2022-12-14 10:00:52,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:00:52,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:00:52,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:00:52,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:00:52,723 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:00:52,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410589037] [2022-12-14 10:00:52,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410589037] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:00:52,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:00:52,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 10:00:52,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900248917] [2022-12-14 10:00:52,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:00:52,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 10:00:52,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:00:52,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 10:00:52,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:00:52,725 INFO L87 Difference]: Start difference. First operand 53 states and 65 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 10:00:52,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:00:52,844 INFO L93 Difference]: Finished difference Result 152 states and 189 transitions. [2022-12-14 10:00:52,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 10:00:52,845 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2022-12-14 10:00:52,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:00:52,847 INFO L225 Difference]: With dead ends: 152 [2022-12-14 10:00:52,847 INFO L226 Difference]: Without dead ends: 101 [2022-12-14 10:00:52,848 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 10:00:52,850 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 42 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:00:52,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 270 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:00:52,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-12-14 10:00:52,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 97. [2022-12-14 10:00:52,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 58 states have (on average 1.2586206896551724) internal successors, (73), 70 states have internal predecessors, (73), 23 states have call successors, (23), 15 states have call predecessors, (23), 15 states have return successors, (23), 15 states have call predecessors, (23), 23 states have call successors, (23) [2022-12-14 10:00:52,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 119 transitions. [2022-12-14 10:00:52,870 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 119 transitions. Word has length 30 [2022-12-14 10:00:52,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:00:52,870 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 119 transitions. [2022-12-14 10:00:52,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 10:00:52,871 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 119 transitions. [2022-12-14 10:00:52,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-14 10:00:52,872 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:00:52,873 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:00:52,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 10:00:52,873 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:00:52,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:00:52,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1473922647, now seen corresponding path program 1 times [2022-12-14 10:00:52,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:00:52,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80869279] [2022-12-14 10:00:52,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:00:52,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:00:52,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:00:52,936 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 10:00:52,936 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:00:52,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80869279] [2022-12-14 10:00:52,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80869279] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:00:52,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:00:52,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:00:52,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890966854] [2022-12-14 10:00:52,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:00:52,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:00:52,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:00:52,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:00:52,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:00:52,939 INFO L87 Difference]: Start difference. First operand 97 states and 119 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-14 10:00:52,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:00:52,985 INFO L93 Difference]: Finished difference Result 148 states and 184 transitions. [2022-12-14 10:00:52,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:00:52,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 33 [2022-12-14 10:00:52,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:00:52,987 INFO L225 Difference]: With dead ends: 148 [2022-12-14 10:00:52,988 INFO L226 Difference]: Without dead ends: 146 [2022-12-14 10:00:52,988 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 10:00:52,988 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 41 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:00:52,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 112 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:00:52,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-12-14 10:00:53,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2022-12-14 10:00:53,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 87 states have (on average 1.264367816091954) internal successors, (110), 105 states have internal predecessors, (110), 35 states have call successors, (35), 23 states have call predecessors, (35), 23 states have return successors, (37), 23 states have call predecessors, (37), 35 states have call successors, (37) [2022-12-14 10:00:53,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 182 transitions. [2022-12-14 10:00:53,003 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 182 transitions. Word has length 33 [2022-12-14 10:00:53,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:00:53,003 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 182 transitions. [2022-12-14 10:00:53,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-14 10:00:53,003 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 182 transitions. [2022-12-14 10:00:53,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-12-14 10:00:53,004 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:00:53,004 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:00:53,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 10:00:53,005 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:00:53,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:00:53,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1855043843, now seen corresponding path program 1 times [2022-12-14 10:00:53,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:00:53,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324880223] [2022-12-14 10:00:53,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:00:53,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:00:53,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:00:53,181 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 10:00:53,182 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:00:53,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324880223] [2022-12-14 10:00:53,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324880223] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:00:53,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155443178] [2022-12-14 10:00:53,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:00:53,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:00:53,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9b1763-0a48-49fd-9eb6-8a94caf89c53/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:00:53,184 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9b1763-0a48-49fd-9eb6-8a94caf89c53/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:00:53,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9b1763-0a48-49fd-9eb6-8a94caf89c53/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 10:00:53,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:00:53,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 10:00:53,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:00:53,311 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-14 10:00:53,311 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:00:53,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155443178] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:00:53,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 10:00:53,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2022-12-14 10:00:53,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559502669] [2022-12-14 10:00:53,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:00:53,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:00:53,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:00:53,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:00:53,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-14 10:00:53,313 INFO L87 Difference]: Start difference. First operand 146 states and 182 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-14 10:00:53,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:00:53,355 INFO L93 Difference]: Finished difference Result 212 states and 263 transitions. [2022-12-14 10:00:53,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 10:00:53,356 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2022-12-14 10:00:53,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:00:53,356 INFO L225 Difference]: With dead ends: 212 [2022-12-14 10:00:53,356 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 10:00:53,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:00:53,357 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 28 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:00:53,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 53 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:00:53,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 10:00:53,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 10:00:53,358 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 10:00:53,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 10:00:53,358 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2022-12-14 10:00:53,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:00:53,359 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 10:00:53,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-14 10:00:53,359 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 10:00:53,359 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 10:00:53,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 10:00:53,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9b1763-0a48-49fd-9eb6-8a94caf89c53/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 10:00:53,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9b1763-0a48-49fd-9eb6-8a94caf89c53/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-14 10:00:53,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 10:00:54,064 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 171 178) no Hoare annotation was computed. [2022-12-14 10:00:54,065 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 171 178) the Hoare annotation is: true [2022-12-14 10:00:54,065 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 87 93) no Hoare annotation was computed. [2022-12-14 10:00:54,065 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 87 93) the Hoare annotation is: true [2022-12-14 10:00:54,065 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 534 545) the Hoare annotation is: true [2022-12-14 10:00:54,065 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 534 545) no Hoare annotation was computed. [2022-12-14 10:00:54,065 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 333 362) no Hoare annotation was computed. [2022-12-14 10:00:54,065 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 351) no Hoare annotation was computed. [2022-12-14 10:00:54,065 INFO L902 garLoopResultBuilder]: At program point L347-1(lines 347 351) the Hoare annotation is: true [2022-12-14 10:00:54,066 INFO L902 garLoopResultBuilder]: At program point L343-2(lines 343 357) the Hoare annotation is: true [2022-12-14 10:00:54,066 INFO L902 garLoopResultBuilder]: At program point L339(line 339) the Hoare annotation is: true [2022-12-14 10:00:54,066 INFO L899 garLoopResultBuilder]: For program point L339-1(line 339) no Hoare annotation was computed. [2022-12-14 10:00:54,066 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 333 362) the Hoare annotation is: true [2022-12-14 10:00:54,066 INFO L902 garLoopResultBuilder]: At program point L358(lines 333 362) the Hoare annotation is: true [2022-12-14 10:00:54,066 INFO L899 garLoopResultBuilder]: For program point L354(line 354) no Hoare annotation was computed. [2022-12-14 10:00:54,066 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 546 554) the Hoare annotation is: true [2022-12-14 10:00:54,066 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 546 554) no Hoare annotation was computed. [2022-12-14 10:00:54,067 INFO L895 garLoopResultBuilder]: At program point L448(line 448) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2022-12-14 10:00:54,067 INFO L899 garLoopResultBuilder]: For program point L448-1(line 448) no Hoare annotation was computed. [2022-12-14 10:00:54,067 INFO L895 garLoopResultBuilder]: At program point L135(line 135) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= 1 ~systemActive~0))) [2022-12-14 10:00:54,067 INFO L895 garLoopResultBuilder]: At program point L131(line 131) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= 1 ~systemActive~0))) [2022-12-14 10:00:54,067 INFO L895 garLoopResultBuilder]: At program point L127(line 127) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= 1 ~systemActive~0))) [2022-12-14 10:00:54,067 INFO L899 garLoopResultBuilder]: For program point L127-1(line 127) no Hoare annotation was computed. [2022-12-14 10:00:54,068 INFO L895 garLoopResultBuilder]: At program point L140(line 140) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2022-12-14 10:00:54,068 INFO L895 garLoopResultBuilder]: At program point L140-1(lines 121 145) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2022-12-14 10:00:54,068 INFO L899 garLoopResultBuilder]: For program point L74-1(lines 74 80) no Hoare annotation was computed. [2022-12-14 10:00:54,068 INFO L899 garLoopResultBuilder]: For program point L454(lines 454 464) no Hoare annotation was computed. [2022-12-14 10:00:54,068 INFO L895 garLoopResultBuilder]: At program point L450(lines 450 467) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0)) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~6#1| 0)))) [2022-12-14 10:00:54,068 INFO L895 garLoopResultBuilder]: At program point L450-1(lines 442 470) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0)) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~6#1| 0)))) [2022-12-14 10:00:54,069 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 63 86) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2022-12-14 10:00:54,069 INFO L899 garLoopResultBuilder]: For program point L455(lines 455 461) no Hoare annotation was computed. [2022-12-14 10:00:54,069 INFO L895 garLoopResultBuilder]: At program point L327(line 327) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= 1 ~systemActive~0))) [2022-12-14 10:00:54,069 INFO L899 garLoopResultBuilder]: For program point L67-1(lines 66 85) no Hoare annotation was computed. [2022-12-14 10:00:54,069 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 137) no Hoare annotation was computed. [2022-12-14 10:00:54,069 INFO L899 garLoopResultBuilder]: For program point L125(lines 125 142) no Hoare annotation was computed. [2022-12-14 10:00:54,069 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 63 86) no Hoare annotation was computed. [2022-12-14 10:00:54,069 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 327) no Hoare annotation was computed. [2022-12-14 10:00:54,070 INFO L902 garLoopResultBuilder]: At program point L419-2(lines 419 426) the Hoare annotation is: true [2022-12-14 10:00:54,070 INFO L895 garLoopResultBuilder]: At program point L304-2(lines 298 309) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-12-14 10:00:54,070 INFO L899 garLoopResultBuilder]: For program point L288(lines 288 294) no Hoare annotation was computed. [2022-12-14 10:00:54,070 INFO L899 garLoopResultBuilder]: For program point L288-1(lines 288 294) no Hoare annotation was computed. [2022-12-14 10:00:54,070 INFO L902 garLoopResultBuilder]: At program point L317(lines 258 321) the Hoare annotation is: true [2022-12-14 10:00:54,070 INFO L895 garLoopResultBuilder]: At program point L280(line 280) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-12-14 10:00:54,070 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 10:00:54,070 INFO L895 garLoopResultBuilder]: At program point L314(lines 267 315) the Hoare annotation is: false [2022-12-14 10:00:54,071 INFO L899 garLoopResultBuilder]: For program point L269(lines 268 313) no Hoare annotation was computed. [2022-12-14 10:00:54,071 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2022-12-14 10:00:54,071 INFO L895 garLoopResultBuilder]: At program point L290(line 290) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-12-14 10:00:54,071 INFO L895 garLoopResultBuilder]: At program point L311(lines 268 313) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-12-14 10:00:54,071 INFO L899 garLoopResultBuilder]: For program point L278(lines 278 284) no Hoare annotation was computed. [2022-12-14 10:00:54,071 INFO L899 garLoopResultBuilder]: For program point L278-1(lines 278 284) no Hoare annotation was computed. [2022-12-14 10:00:54,071 INFO L895 garLoopResultBuilder]: At program point L419(lines 419 426) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2022-12-14 10:00:54,071 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 522 533) no Hoare annotation was computed. [2022-12-14 10:00:54,072 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 522 533) the Hoare annotation is: true [2022-12-14 10:00:54,072 INFO L895 garLoopResultBuilder]: At program point L114(line 114) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0)) (not (= ~methAndRunningLastTime~0 0))) [2022-12-14 10:00:54,072 INFO L899 garLoopResultBuilder]: For program point L114-1(lines 95 119) no Hoare annotation was computed. [2022-12-14 10:00:54,072 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 95 119) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0)) (not (= ~methAndRunningLastTime~0 0))) [2022-12-14 10:00:54,072 INFO L895 garLoopResultBuilder]: At program point L109(line 109) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (not (= ~methAndRunningLastTime~0 0))) [2022-12-14 10:00:54,072 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 95 119) no Hoare annotation was computed. [2022-12-14 10:00:54,072 INFO L895 garLoopResultBuilder]: At program point L105(line 105) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (not (= ~methAndRunningLastTime~0 0))) [2022-12-14 10:00:54,072 INFO L899 garLoopResultBuilder]: For program point L103(lines 103 111) no Hoare annotation was computed. [2022-12-14 10:00:54,073 INFO L895 garLoopResultBuilder]: At program point L99(lines 99 116) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0)) (not (= ~methAndRunningLastTime~0 0))) [2022-12-14 10:00:54,073 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 179 189) no Hoare annotation was computed. [2022-12-14 10:00:54,073 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 179 189) the Hoare annotation is: true [2022-12-14 10:00:54,073 INFO L902 garLoopResultBuilder]: At program point L184(line 184) the Hoare annotation is: true [2022-12-14 10:00:54,073 INFO L899 garLoopResultBuilder]: For program point L184-1(line 184) no Hoare annotation was computed. [2022-12-14 10:00:54,076 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-12-14 10:00:54,078 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 10:00:54,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 10:00:54 BoogieIcfgContainer [2022-12-14 10:00:54,094 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 10:00:54,094 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 10:00:54,094 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 10:00:54,094 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 10:00:54,095 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:00:51" (3/4) ... [2022-12-14 10:00:54,098 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 10:00:54,103 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-12-14 10:00:54,104 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-12-14 10:00:54,104 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-12-14 10:00:54,104 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-12-14 10:00:54,104 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-12-14 10:00:54,104 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-12-14 10:00:54,104 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-12-14 10:00:54,104 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-12-14 10:00:54,105 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-12-14 10:00:54,110 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 44 nodes and edges [2022-12-14 10:00:54,111 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-12-14 10:00:54,111 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-14 10:00:54,112 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 10:00:54,112 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 10:00:54,136 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && methAndRunningLastTime == 0) [2022-12-14 10:00:54,137 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && methAndRunningLastTime == 0) [2022-12-14 10:00:54,137 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methAndRunningLastTime == 0) [2022-12-14 10:00:54,137 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || tmp == 0) [2022-12-14 10:00:54,138 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || tmp == 0) [2022-12-14 10:00:54,138 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive) [2022-12-14 10:00:54,160 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9b1763-0a48-49fd-9eb6-8a94caf89c53/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 10:00:54,161 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 10:00:54,161 INFO L158 Benchmark]: Toolchain (without parser) took 3003.89ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 127.1MB in the beginning and 87.6MB in the end (delta: 39.6MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. [2022-12-14 10:00:54,161 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 161.5MB. Free memory is still 131.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:00:54,162 INFO L158 Benchmark]: CACSL2BoogieTranslator took 280.31ms. Allocated memory is still 161.5MB. Free memory was 126.5MB in the beginning and 108.2MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 10:00:54,162 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.60ms. Allocated memory is still 161.5MB. Free memory was 108.2MB in the beginning and 106.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 10:00:54,162 INFO L158 Benchmark]: Boogie Preprocessor took 24.31ms. Allocated memory is still 161.5MB. Free memory was 106.3MB in the beginning and 104.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 10:00:54,162 INFO L158 Benchmark]: RCFGBuilder took 402.63ms. Allocated memory is still 161.5MB. Free memory was 104.8MB in the beginning and 81.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-12-14 10:00:54,163 INFO L158 Benchmark]: TraceAbstraction took 2183.51ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 81.1MB in the beginning and 92.8MB in the end (delta: -11.7MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. [2022-12-14 10:00:54,163 INFO L158 Benchmark]: Witness Printer took 66.56ms. Allocated memory is still 195.0MB. Free memory was 92.8MB in the beginning and 87.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-14 10:00:54,165 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 161.5MB. Free memory is still 131.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 280.31ms. Allocated memory is still 161.5MB. Free memory was 126.5MB in the beginning and 108.2MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.60ms. Allocated memory is still 161.5MB. Free memory was 108.2MB in the beginning and 106.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.31ms. Allocated memory is still 161.5MB. Free memory was 106.3MB in the beginning and 104.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 402.63ms. Allocated memory is still 161.5MB. Free memory was 104.8MB in the beginning and 81.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 2183.51ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 81.1MB in the beginning and 92.8MB in the end (delta: -11.7MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. * Witness Printer took 66.56ms. Allocated memory is still 195.0MB. Free memory was 92.8MB in the beginning and 87.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 327]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 66 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 179 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 173 mSDsluCounter, 650 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 327 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 205 IncrementalHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 323 mSDtfsCounter, 205 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=146occurred in iteration=5, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 36 LocationsWithAnnotation, 293 PreInvPairs, 312 NumberOfFragments, 369 HoareAnnotationTreeSize, 293 FomulaSimplifications, 24 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 36 FomulaSimplificationsInter, 657 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 242 NumberOfCodeBlocks, 242 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 235 ConstructedInterpolants, 0 QuantifiedInterpolants, 427 SizeOfPredicates, 3 NumberOfNonLiveVariables, 268 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 49/54 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: 419]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive - InvariantResult [Line: 327]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive) - InvariantResult [Line: 343]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 258]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 450]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || tmp == 0) - InvariantResult [Line: 442]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || tmp == 0) - InvariantResult [Line: 267]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && methAndRunningLastTime == 0) - InvariantResult [Line: 333]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 419]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methAndRunningLastTime == 0) - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && methAndRunningLastTime == 0) - InvariantResult [Line: 268]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && splverifierCounter == 0 RESULT: Ultimate proved your program to be correct! [2022-12-14 10:00:54,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9b1763-0a48-49fd-9eb6-8a94caf89c53/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