./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product23.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6410e5e-430e-4b8d-8112-5ed5f5e29cbc/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6410e5e-430e-4b8d-8112-5ed5f5e29cbc/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6410e5e-430e-4b8d-8112-5ed5f5e29cbc/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6410e5e-430e-4b8d-8112-5ed5f5e29cbc/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product23.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6410e5e-430e-4b8d-8112-5ed5f5e29cbc/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6410e5e-430e-4b8d-8112-5ed5f5e29cbc/bin/utaipan-EQgc7hIp5V --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 3fa2925374831266c365e02bbdeeca981bf102eec792ab5e5349fa193f0e7273 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:55:01,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:55:01,529 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:55:01,591 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:55:01,592 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:55:01,596 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:55:01,598 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:55:01,603 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:55:01,606 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:55:01,612 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:55:01,613 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:55:01,616 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:55:01,616 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:55:01,619 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:55:01,621 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:55:01,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:55:01,628 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:55:01,630 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:55:01,632 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:55:01,641 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:55:01,643 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:55:01,645 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:55:01,648 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:55:01,649 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:55:01,660 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:55:01,660 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:55:01,661 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:55:01,663 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:55:01,663 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:55:01,665 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:55:01,666 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:55:01,667 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:55:01,669 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:55:01,670 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:55:01,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:55:01,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:55:01,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:55:01,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:55:01,674 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:55:01,675 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:55:01,675 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:55:01,676 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6410e5e-430e-4b8d-8112-5ed5f5e29cbc/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 01:55:01,725 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:55:01,725 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:55:01,726 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 01:55:01,726 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 01:55:01,727 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:55:01,728 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 01:55:01,728 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 01:55:01,728 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 01:55:01,728 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 01:55:01,729 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 01:55:01,730 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 01:55:01,730 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 01:55:01,730 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 01:55:01,731 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 01:55:01,731 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 01:55:01,731 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 01:55:01,732 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 01:55:01,732 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 01:55:01,733 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:55:01,734 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:55:01,734 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:55:01,734 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:55:01,734 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:55:01,735 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:55:01,735 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:55:01,735 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:55:01,737 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:55:01,737 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:55:01,737 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:55:01,738 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:55:01,738 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:55:01,738 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 01:55:01,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 01:55:01,739 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:55:01,739 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:55:01,739 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:55:01,740 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 01:55:01,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:55:01,740 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:55:01,740 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 01:55:01,740 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 01:55:01,741 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_b6410e5e-430e-4b8d-8112-5ed5f5e29cbc/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6410e5e-430e-4b8d-8112-5ed5f5e29cbc/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3fa2925374831266c365e02bbdeeca981bf102eec792ab5e5349fa193f0e7273 [2021-11-23 01:55:02,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:55:02,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:55:02,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:55:02,130 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:55:02,130 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:55:02,132 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6410e5e-430e-4b8d-8112-5ed5f5e29cbc/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/product-lines/minepump_spec5_product23.cil.c [2021-11-23 01:55:02,211 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6410e5e-430e-4b8d-8112-5ed5f5e29cbc/bin/utaipan-EQgc7hIp5V/data/5fc7840a0/09b2b31c05454e95be11d8c25b09461c/FLAG14888c476 [2021-11-23 01:55:02,949 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:55:02,950 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6410e5e-430e-4b8d-8112-5ed5f5e29cbc/sv-benchmarks/c/product-lines/minepump_spec5_product23.cil.c [2021-11-23 01:55:02,986 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6410e5e-430e-4b8d-8112-5ed5f5e29cbc/bin/utaipan-EQgc7hIp5V/data/5fc7840a0/09b2b31c05454e95be11d8c25b09461c/FLAG14888c476 [2021-11-23 01:55:03,202 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6410e5e-430e-4b8d-8112-5ed5f5e29cbc/bin/utaipan-EQgc7hIp5V/data/5fc7840a0/09b2b31c05454e95be11d8c25b09461c [2021-11-23 01:55:03,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:55:03,207 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:55:03,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:55:03,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:55:03,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:55:03,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:55:03" (1/1) ... [2021-11-23 01:55:03,224 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@320ae737 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:03, skipping insertion in model container [2021-11-23 01:55:03,225 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:55:03" (1/1) ... [2021-11-23 01:55:03,233 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:55:03,305 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:55:03,685 WARN L230 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_b6410e5e-430e-4b8d-8112-5ed5f5e29cbc/sv-benchmarks/c/product-lines/minepump_spec5_product23.cil.c[11292,11305] [2021-11-23 01:55:03,737 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:55:03,748 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:55:03,822 WARN L230 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_b6410e5e-430e-4b8d-8112-5ed5f5e29cbc/sv-benchmarks/c/product-lines/minepump_spec5_product23.cil.c[11292,11305] [2021-11-23 01:55:03,855 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:55:03,879 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:55:03,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:03 WrapperNode [2021-11-23 01:55:03,880 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:55:03,881 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:55:03,881 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:55:03,882 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:55:03,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:03" (1/1) ... [2021-11-23 01:55:03,908 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:03" (1/1) ... [2021-11-23 01:55:03,962 INFO L137 Inliner]: procedures = 56, calls = 158, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 253 [2021-11-23 01:55:03,963 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:55:03,965 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:55:03,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:55:03,965 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:55:03,976 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:03" (1/1) ... [2021-11-23 01:55:03,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:03" (1/1) ... [2021-11-23 01:55:03,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:03" (1/1) ... [2021-11-23 01:55:03,998 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:03" (1/1) ... [2021-11-23 01:55:04,005 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:03" (1/1) ... [2021-11-23 01:55:04,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:03" (1/1) ... [2021-11-23 01:55:04,026 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:03" (1/1) ... [2021-11-23 01:55:04,029 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:55:04,035 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:55:04,036 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:55:04,036 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:55:04,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:03" (1/1) ... [2021-11-23 01:55:04,046 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 01:55:04,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6410e5e-430e-4b8d-8112-5ed5f5e29cbc/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 01:55:04,072 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6410e5e-430e-4b8d-8112-5ed5f5e29cbc/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 01:55:04,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6410e5e-430e-4b8d-8112-5ed5f5e29cbc/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 01:55:04,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:55:04,136 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-11-23 01:55:04,136 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-11-23 01:55:04,136 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-23 01:55:04,137 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-23 01:55:04,137 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-23 01:55:04,137 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-23 01:55:04,137 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-23 01:55:04,138 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-23 01:55:04,138 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2021-11-23 01:55:04,138 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2021-11-23 01:55:04,138 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-11-23 01:55:04,138 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-11-23 01:55:04,139 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-11-23 01:55:04,139 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-11-23 01:55:04,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:55:04,139 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-23 01:55:04,139 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-23 01:55:04,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:55:04,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:55:04,262 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:55:04,264 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:55:04,671 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:55:04,750 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:55:04,750 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 01:55:04,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:55:04 BoogieIcfgContainer [2021-11-23 01:55:04,753 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:55:04,755 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 01:55:04,755 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 01:55:04,762 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 01:55:04,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:55:03" (1/3) ... [2021-11-23 01:55:04,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e155e2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:55:04, skipping insertion in model container [2021-11-23 01:55:04,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:03" (2/3) ... [2021-11-23 01:55:04,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e155e2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:55:04, skipping insertion in model container [2021-11-23 01:55:04,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:55:04" (3/3) ... [2021-11-23 01:55:04,766 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product23.cil.c [2021-11-23 01:55:04,773 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 01:55:04,773 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 01:55:04,865 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 01:55:04,880 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 01:55:04,880 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 01:55:04,926 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 51 states have internal predecessors, (61), 15 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2021-11-23 01:55:04,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 01:55:04,939 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:55:04,940 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:55:04,941 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:55:04,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:55:04,948 INFO L85 PathProgramCache]: Analyzing trace with hash 938043986, now seen corresponding path program 1 times [2021-11-23 01:55:04,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:55:04,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390313533] [2021-11-23 01:55:04,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:55:04,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:55:05,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:55:05,298 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 01:55:05,300 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:55:05,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390313533] [2021-11-23 01:55:05,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390313533] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:55:05,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:55:05,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 01:55:05,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776380302] [2021-11-23 01:55:05,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:55:05,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 01:55:05,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:55:05,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 01:55:05,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 01:55:05,357 INFO L87 Difference]: Start difference. First operand has 67 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 51 states have internal predecessors, (61), 15 states have call successors, (15), 8 states have call predecessors, (15), 8 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 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 01:55:05,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:55:05,495 INFO L93 Difference]: Finished difference Result 132 states and 183 transitions. [2021-11-23 01:55:05,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 01:55:05,498 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2021-11-23 01:55:05,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:55:05,511 INFO L225 Difference]: With dead ends: 132 [2021-11-23 01:55:05,512 INFO L226 Difference]: Without dead ends: 62 [2021-11-23 01:55:05,518 INFO L932 BasicCegarLoop]: 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 [2021-11-23 01:55:05,523 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 01:55:05,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 01:55:05,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-11-23 01:55:05,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2021-11-23 01:55:05,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 39 states have (on average 1.358974358974359) internal successors, (53), 47 states have internal predecessors, (53), 15 states have call successors, (15), 8 states have call predecessors, (15), 7 states have return successors, (14), 10 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-23 01:55:05,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 82 transitions. [2021-11-23 01:55:05,599 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 82 transitions. Word has length 21 [2021-11-23 01:55:05,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:55:05,600 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 82 transitions. [2021-11-23 01:55:05,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 01:55:05,601 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 82 transitions. [2021-11-23 01:55:05,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 01:55:05,609 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:55:05,609 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:55:05,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 01:55:05,610 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:55:05,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:55:05,614 INFO L85 PathProgramCache]: Analyzing trace with hash 885863878, now seen corresponding path program 1 times [2021-11-23 01:55:05,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:55:05,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638898722] [2021-11-23 01:55:05,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:55:05,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:55:05,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:55:05,732 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 01:55:05,732 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:55:05,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638898722] [2021-11-23 01:55:05,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638898722] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:55:05,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:55:05,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 01:55:05,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953818396] [2021-11-23 01:55:05,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:55:05,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 01:55:05,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:55:05,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 01:55:05,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:55:05,737 INFO L87 Difference]: Start difference. First operand 62 states and 82 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 01:55:05,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:55:05,781 INFO L93 Difference]: Finished difference Result 96 states and 126 transitions. [2021-11-23 01:55:05,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 01:55:05,782 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2021-11-23 01:55:05,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:55:05,784 INFO L225 Difference]: With dead ends: 96 [2021-11-23 01:55:05,784 INFO L226 Difference]: Without dead ends: 54 [2021-11-23 01:55:05,785 INFO L932 BasicCegarLoop]: 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 [2021-11-23 01:55:05,787 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 14 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 99 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 [2021-11-23 01:55:05,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 99 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 01:55:05,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-11-23 01:55:05,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-11-23 01:55:05,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 42 states have internal predecessors, (47), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 8 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-23 01:55:05,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 71 transitions. [2021-11-23 01:55:05,800 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 71 transitions. Word has length 22 [2021-11-23 01:55:05,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:55:05,800 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 71 transitions. [2021-11-23 01:55:05,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 01:55:05,801 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 71 transitions. [2021-11-23 01:55:05,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 01:55:05,813 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:55:05,814 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:55:05,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 01:55:05,814 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:55:05,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:55:05,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1496284312, now seen corresponding path program 1 times [2021-11-23 01:55:05,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:55:05,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720762487] [2021-11-23 01:55:05,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:55:05,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:55:05,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:55:05,913 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 01:55:05,913 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:55:05,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720762487] [2021-11-23 01:55:05,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720762487] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:55:05,914 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:55:05,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 01:55:05,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603254089] [2021-11-23 01:55:05,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:55:05,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:55:05,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:55:05,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:55:05,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:55:05,916 INFO L87 Difference]: Start difference. First operand 54 states and 71 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 01:55:06,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:55:06,158 INFO L93 Difference]: Finished difference Result 156 states and 211 transitions. [2021-11-23 01:55:06,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 01:55:06,159 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2021-11-23 01:55:06,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:55:06,162 INFO L225 Difference]: With dead ends: 156 [2021-11-23 01:55:06,162 INFO L226 Difference]: Without dead ends: 104 [2021-11-23 01:55:06,163 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:55:06,165 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 83 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 01:55:06,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 167 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 01:55:06,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-11-23 01:55:06,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 87. [2021-11-23 01:55:06,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 56 states have (on average 1.375) internal successors, (77), 67 states have internal predecessors, (77), 18 states have call successors, (18), 12 states have call predecessors, (18), 12 states have return successors, (19), 13 states have call predecessors, (19), 18 states have call successors, (19) [2021-11-23 01:55:06,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 114 transitions. [2021-11-23 01:55:06,210 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 114 transitions. Word has length 25 [2021-11-23 01:55:06,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:55:06,210 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 114 transitions. [2021-11-23 01:55:06,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 01:55:06,211 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 114 transitions. [2021-11-23 01:55:06,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-23 01:55:06,215 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:55:06,215 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:55:06,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 01:55:06,216 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:55:06,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:55:06,217 INFO L85 PathProgramCache]: Analyzing trace with hash -2008938121, now seen corresponding path program 1 times [2021-11-23 01:55:06,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:55:06,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834375488] [2021-11-23 01:55:06,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:55:06,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:55:06,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:55:06,359 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 01:55:06,359 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:55:06,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834375488] [2021-11-23 01:55:06,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834375488] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:55:06,360 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:55:06,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 01:55:06,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935240116] [2021-11-23 01:55:06,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:55:06,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 01:55:06,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:55:06,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 01:55:06,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 01:55:06,364 INFO L87 Difference]: Start difference. First operand 87 states and 114 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 01:55:06,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:55:06,485 INFO L93 Difference]: Finished difference Result 160 states and 212 transitions. [2021-11-23 01:55:06,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 01:55:06,497 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2021-11-23 01:55:06,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:55:06,498 INFO L225 Difference]: With dead ends: 160 [2021-11-23 01:55:06,498 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 01:55:06,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-23 01:55:06,502 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 30 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 01:55:06,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 124 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 01:55:06,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 01:55:06,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 01:55:06,504 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) [2021-11-23 01:55:06,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 01:55:06,504 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2021-11-23 01:55:06,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:55:06,504 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 01:55:06,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 01:55:06,505 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 01:55:06,505 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 01:55:06,511 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 01:55:06,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 01:55:06,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 01:55:06,885 INFO L861 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 728 735) the Hoare annotation is: true [2021-11-23 01:55:06,885 INFO L858 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 728 735) no Hoare annotation was computed. [2021-11-23 01:55:06,885 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 661 667) no Hoare annotation was computed. [2021-11-23 01:55:06,886 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 661 667) the Hoare annotation is: true [2021-11-23 01:55:06,886 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 458 469) the Hoare annotation is: true [2021-11-23 01:55:06,886 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 458 469) no Hoare annotation was computed. [2021-11-23 01:55:06,886 INFO L858 garLoopResultBuilder]: For program point L960(lines 960 970) no Hoare annotation was computed. [2021-11-23 01:55:06,886 INFO L858 garLoopResultBuilder]: For program point L956(lines 956 973) no Hoare annotation was computed. [2021-11-23 01:55:06,887 INFO L854 garLoopResultBuilder]: At program point L956-1(lines 948 976) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2021-11-23 01:55:06,887 INFO L854 garLoopResultBuilder]: At program point L709(line 709) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-11-23 01:55:06,887 INFO L854 garLoopResultBuilder]: At program point L420(line 420) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-11-23 01:55:06,887 INFO L854 garLoopResultBuilder]: At program point L705(line 705) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-11-23 01:55:06,887 INFO L858 garLoopResultBuilder]: For program point L961(lines 961 967) no Hoare annotation was computed. [2021-11-23 01:55:06,888 INFO L854 garLoopResultBuilder]: At program point L714(line 714) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (not (= 0 ~systemActive~0)))) [2021-11-23 01:55:06,888 INFO L854 garLoopResultBuilder]: At program point L714-1(lines 695 719) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (not (= 0 ~systemActive~0)))) [2021-11-23 01:55:06,888 INFO L854 garLoopResultBuilder]: At program point L648-1(lines 648 654) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2021-11-23 01:55:06,888 INFO L854 garLoopResultBuilder]: At program point L958(line 958) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2021-11-23 01:55:06,888 INFO L858 garLoopResultBuilder]: For program point L958-1(line 958) no Hoare annotation was computed. [2021-11-23 01:55:06,889 INFO L858 garLoopResultBuilder]: For program point L641-2(lines 637 659) no Hoare annotation was computed. [2021-11-23 01:55:06,889 INFO L858 garLoopResultBuilder]: For program point L703(lines 703 711) no Hoare annotation was computed. [2021-11-23 01:55:06,889 INFO L854 garLoopResultBuilder]: At program point L699(lines 699 716) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (not (= 0 ~systemActive~0)))) [2021-11-23 01:55:06,889 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 634 660) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2021-11-23 01:55:06,889 INFO L854 garLoopResultBuilder]: At program point L943(line 943) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2021-11-23 01:55:06,889 INFO L854 garLoopResultBuilder]: At program point L943-1(line 943) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2021-11-23 01:55:06,890 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 634 660) no Hoare annotation was computed. [2021-11-23 01:55:06,890 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 420) no Hoare annotation was computed. [2021-11-23 01:55:06,890 INFO L858 garLoopResultBuilder]: For program point L544(line 544) no Hoare annotation was computed. [2021-11-23 01:55:06,890 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 523 552) no Hoare annotation was computed. [2021-11-23 01:55:06,890 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 523 552) the Hoare annotation is: true [2021-11-23 01:55:06,891 INFO L858 garLoopResultBuilder]: For program point L537(lines 537 541) no Hoare annotation was computed. [2021-11-23 01:55:06,891 INFO L861 garLoopResultBuilder]: At program point L537-1(lines 537 541) the Hoare annotation is: true [2021-11-23 01:55:06,891 INFO L861 garLoopResultBuilder]: At program point L533-2(lines 533 547) the Hoare annotation is: true [2021-11-23 01:55:06,891 INFO L861 garLoopResultBuilder]: At program point L529(line 529) the Hoare annotation is: true [2021-11-23 01:55:06,891 INFO L858 garLoopResultBuilder]: For program point L529-1(line 529) no Hoare annotation was computed. [2021-11-23 01:55:06,891 INFO L861 garLoopResultBuilder]: At program point L548(lines 523 552) the Hoare annotation is: true [2021-11-23 01:55:06,892 INFO L858 garLoopResultBuilder]: For program point L857(lines 857 863) no Hoare annotation was computed. [2021-11-23 01:55:06,892 INFO L858 garLoopResultBuilder]: For program point L857-1(lines 857 863) no Hoare annotation was computed. [2021-11-23 01:55:06,892 INFO L854 garLoopResultBuilder]: At program point L882(lines 837 884) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-11-23 01:55:06,892 INFO L854 garLoopResultBuilder]: At program point L849(line 849) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-11-23 01:55:06,892 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-11-23 01:55:06,892 INFO L854 garLoopResultBuilder]: At program point L817(line 817) the Hoare annotation is: false [2021-11-23 01:55:06,893 INFO L858 garLoopResultBuilder]: For program point L838(lines 837 884) no Hoare annotation was computed. [2021-11-23 01:55:06,893 INFO L854 garLoopResultBuilder]: At program point L611(lines 611 618) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_main_~tmp~3#1| ~systemActive~0) (not (= 0 ~systemActive~0))) [2021-11-23 01:55:06,893 INFO L858 garLoopResultBuilder]: For program point L867(lines 867 880) no Hoare annotation was computed. [2021-11-23 01:55:06,893 INFO L861 garLoopResultBuilder]: At program point L611-2(lines 611 618) the Hoare annotation is: true [2021-11-23 01:55:06,893 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 01:55:06,893 INFO L854 garLoopResultBuilder]: At program point L859(line 859) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-11-23 01:55:06,894 INFO L861 garLoopResultBuilder]: At program point L888(lines 827 892) the Hoare annotation is: true [2021-11-23 01:55:06,894 INFO L858 garLoopResultBuilder]: For program point L847(lines 847 853) no Hoare annotation was computed. [2021-11-23 01:55:06,894 INFO L858 garLoopResultBuilder]: For program point L847-1(lines 847 853) no Hoare annotation was computed. [2021-11-23 01:55:06,894 INFO L854 garLoopResultBuilder]: At program point L885(lines 836 886) the Hoare annotation is: false [2021-11-23 01:55:06,894 INFO L858 garLoopResultBuilder]: For program point L815(lines 815 821) no Hoare annotation was computed. [2021-11-23 01:55:06,894 INFO L854 garLoopResultBuilder]: At program point L815-1(lines 815 821) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-11-23 01:55:06,894 INFO L858 garLoopResultBuilder]: For program point L873(lines 873 879) no Hoare annotation was computed. [2021-11-23 01:55:06,895 INFO L854 garLoopResultBuilder]: At program point L873-2(lines 867 880) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-11-23 01:55:06,895 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 446 457) no Hoare annotation was computed. [2021-11-23 01:55:06,895 INFO L861 garLoopResultBuilder]: At program point waterRiseENTRY(lines 446 457) the Hoare annotation is: true [2021-11-23 01:55:06,895 INFO L854 garLoopResultBuilder]: At program point L673(lines 673 690) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (= 0 ~systemActive~0)) [2021-11-23 01:55:06,895 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 669 693) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (= 0 ~systemActive~0)) [2021-11-23 01:55:06,896 INFO L854 garLoopResultBuilder]: At program point L688(line 688) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (= 0 ~systemActive~0)) [2021-11-23 01:55:06,896 INFO L858 garLoopResultBuilder]: For program point L688-1(lines 669 693) no Hoare annotation was computed. [2021-11-23 01:55:06,896 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 669 693) no Hoare annotation was computed. [2021-11-23 01:55:06,896 INFO L854 garLoopResultBuilder]: At program point L683(line 683) the Hoare annotation is: (or (= ~systemActive~0 0) (not (= |old(~pumpRunning~0)| 0))) [2021-11-23 01:55:06,896 INFO L854 garLoopResultBuilder]: At program point L679(line 679) the Hoare annotation is: (or (= ~systemActive~0 0) (not (= |old(~pumpRunning~0)| 0))) [2021-11-23 01:55:06,896 INFO L858 garLoopResultBuilder]: For program point L677(lines 677 685) no Hoare annotation was computed. [2021-11-23 01:55:06,896 INFO L858 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 747 755) no Hoare annotation was computed. [2021-11-23 01:55:06,897 INFO L861 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 747 755) the Hoare annotation is: true [2021-11-23 01:55:06,900 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-23 01:55:06,902 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 01:55:06,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:55:06 BoogieIcfgContainer [2021-11-23 01:55:06,940 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 01:55:06,941 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:55:06,941 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:55:06,941 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:55:06,942 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:55:04" (3/4) ... [2021-11-23 01:55:06,945 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 01:55:06,950 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2021-11-23 01:55:06,950 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-11-23 01:55:06,950 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-11-23 01:55:06,950 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-11-23 01:55:06,951 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-11-23 01:55:06,951 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-11-23 01:55:06,951 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2021-11-23 01:55:06,951 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2021-11-23 01:55:06,969 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 76 nodes and edges [2021-11-23 01:55:06,970 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2021-11-23 01:55:06,971 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-11-23 01:55:06,972 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-23 01:55:06,973 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 01:55:06,973 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 01:55:06,974 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 01:55:07,002 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || pumpRunning == 0 [2021-11-23 01:55:07,004 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || pumpRunning == 0 [2021-11-23 01:55:07,005 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || pumpRunning == 0 [2021-11-23 01:55:07,006 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || (pumpRunning == 0 && !(0 == systemActive)) [2021-11-23 01:55:07,006 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2021-11-23 01:55:07,006 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || (pumpRunning == 0 && !(0 == systemActive)) [2021-11-23 01:55:07,007 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive [2021-11-23 01:55:07,061 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6410e5e-430e-4b8d-8112-5ed5f5e29cbc/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 01:55:07,061 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:55:07,062 INFO L158 Benchmark]: Toolchain (without parser) took 3855.48ms. Allocated memory was 100.7MB in the beginning and 136.3MB in the end (delta: 35.7MB). Free memory was 56.5MB in the beginning and 83.2MB in the end (delta: -26.7MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2021-11-23 01:55:07,063 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 100.7MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:55:07,063 INFO L158 Benchmark]: CACSL2BoogieTranslator took 662.53ms. Allocated memory is still 100.7MB. Free memory was 56.3MB in the beginning and 65.9MB in the end (delta: -9.6MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2021-11-23 01:55:07,063 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.82ms. Allocated memory is still 100.7MB. Free memory was 65.6MB in the beginning and 63.2MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 01:55:07,064 INFO L158 Benchmark]: Boogie Preprocessor took 69.65ms. Allocated memory is still 100.7MB. Free memory was 63.2MB in the beginning and 61.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:55:07,064 INFO L158 Benchmark]: RCFGBuilder took 717.58ms. Allocated memory is still 100.7MB. Free memory was 61.6MB in the beginning and 41.0MB in the end (delta: 20.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-11-23 01:55:07,065 INFO L158 Benchmark]: TraceAbstraction took 2185.30ms. Allocated memory was 100.7MB in the beginning and 136.3MB in the end (delta: 35.7MB). Free memory was 40.5MB in the beginning and 89.5MB in the end (delta: -49.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:55:07,065 INFO L158 Benchmark]: Witness Printer took 120.79ms. Allocated memory is still 136.3MB. Free memory was 89.5MB in the beginning and 83.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 01:55:07,067 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 100.7MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 662.53ms. Allocated memory is still 100.7MB. Free memory was 56.3MB in the beginning and 65.9MB in the end (delta: -9.6MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.82ms. Allocated memory is still 100.7MB. Free memory was 65.6MB in the beginning and 63.2MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.65ms. Allocated memory is still 100.7MB. Free memory was 63.2MB in the beginning and 61.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 717.58ms. Allocated memory is still 100.7MB. Free memory was 61.6MB in the beginning and 41.0MB in the end (delta: 20.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 2185.30ms. Allocated memory was 100.7MB in the beginning and 136.3MB in the end (delta: 35.7MB). Free memory was 40.5MB in the beginning and 89.5MB in the end (delta: -49.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 120.79ms. Allocated memory is still 136.3MB. Free memory was 89.5MB in the beginning and 83.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 420]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 132 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 127 mSDsluCounter, 462 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 278 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 185 IncrementalHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 238 mSDtfsCounter, 185 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=3, InterpolantAutomatonStates: 15, 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, 4 MinimizatonAttempts, 17 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 38 LocationsWithAnnotation, 233 PreInvPairs, 259 NumberOfFragments, 209 HoareAnnotationTreeSize, 233 FomulaSimplifications, 65 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 38 FomulaSimplificationsInter, 393 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 178 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 8/8 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: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 948]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || pumpRunning == 0 - InvariantResult [Line: 827]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 695]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || (pumpRunning == 0 && !(0 == systemActive)) - InvariantResult [Line: 836]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 943]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || pumpRunning == 0 - InvariantResult [Line: 673]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive - InvariantResult [Line: 420]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 837]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 533]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 699]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || (pumpRunning == 0 && !(0 == systemActive)) - InvariantResult [Line: 611]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 611]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && tmp == systemActive) && !(0 == systemActive) - InvariantResult [Line: 815]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 648]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || pumpRunning == 0 RESULT: Ultimate proved your program to be correct! [2021-11-23 01:55:07,115 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6410e5e-430e-4b8d-8112-5ed5f5e29cbc/bin/utaipan-EQgc7hIp5V/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