./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product12.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674c5d3a-9e91-43e2-bb00-2b07046ead6e/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674c5d3a-9e91-43e2-bb00-2b07046ead6e/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674c5d3a-9e91-43e2-bb00-2b07046ead6e/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674c5d3a-9e91-43e2-bb00-2b07046ead6e/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product12.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674c5d3a-9e91-43e2-bb00-2b07046ead6e/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674c5d3a-9e91-43e2-bb00-2b07046ead6e/bin/utaipan-I9t0OCRTmS --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 a08a330faab409752e65fe7d3101f81f24601e18bc944ca2e918542b1c9d8232 --- 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-8393723 [2022-11-19 08:19:20,405 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:19:20,408 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:19:20,451 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:19:20,452 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:19:20,455 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:19:20,458 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:19:20,461 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:19:20,468 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:19:20,469 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:19:20,471 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:19:20,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:19:20,474 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:19:20,480 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:19:20,481 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:19:20,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:19:20,485 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:19:20,488 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:19:20,489 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:19:20,494 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:19:20,497 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:19:20,498 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:19:20,501 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:19:20,502 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:19:20,512 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:19:20,513 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:19:20,513 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:19:20,515 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:19:20,516 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:19:20,517 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:19:20,517 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:19:20,518 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:19:20,519 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:19:20,519 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:19:20,520 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:19:20,521 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:19:20,521 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:19:20,521 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:19:20,522 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:19:20,523 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:19:20,523 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:19:20,524 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674c5d3a-9e91-43e2-bb00-2b07046ead6e/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 08:19:20,562 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:19:20,562 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:19:20,563 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:19:20,563 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:19:20,564 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:19:20,564 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:19:20,565 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:19:20,565 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:19:20,565 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:19:20,565 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:19:20,566 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:19:20,566 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:19:20,567 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:19:20,567 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:19:20,567 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:19:20,567 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:19:20,567 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:19:20,568 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:19:20,568 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:19:20,569 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:19:20,569 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:19:20,569 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:19:20,569 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:19:20,571 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:19:20,571 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:19:20,571 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:19:20,571 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:19:20,571 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:19:20,572 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:19:20,572 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:19:20,572 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:19:20,573 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:19:20,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:19:20,573 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:19:20,573 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:19:20,573 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:19:20,574 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:19:20,574 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:19:20,574 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:19:20,574 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:19:20,575 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:19:20,575 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_674c5d3a-9e91-43e2-bb00-2b07046ead6e/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674c5d3a-9e91-43e2-bb00-2b07046ead6e/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a08a330faab409752e65fe7d3101f81f24601e18bc944ca2e918542b1c9d8232 [2022-11-19 08:19:20,842 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:19:20,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:19:20,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:19:20,885 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:19:20,886 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:19:20,887 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674c5d3a-9e91-43e2-bb00-2b07046ead6e/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/product-lines/minepump_spec5_product12.cil.c [2022-11-19 08:19:20,991 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674c5d3a-9e91-43e2-bb00-2b07046ead6e/bin/utaipan-I9t0OCRTmS/data/bf23fd11f/f4e21f9d8fcb47b2a8e0071e0949607e/FLAG3d6ca234c [2022-11-19 08:19:21,499 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:19:21,499 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674c5d3a-9e91-43e2-bb00-2b07046ead6e/sv-benchmarks/c/product-lines/minepump_spec5_product12.cil.c [2022-11-19 08:19:21,510 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674c5d3a-9e91-43e2-bb00-2b07046ead6e/bin/utaipan-I9t0OCRTmS/data/bf23fd11f/f4e21f9d8fcb47b2a8e0071e0949607e/FLAG3d6ca234c [2022-11-19 08:19:21,859 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674c5d3a-9e91-43e2-bb00-2b07046ead6e/bin/utaipan-I9t0OCRTmS/data/bf23fd11f/f4e21f9d8fcb47b2a8e0071e0949607e [2022-11-19 08:19:21,862 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:19:21,865 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:19:21,871 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:19:21,871 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:19:21,874 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:19:21,875 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:19:21" (1/1) ... [2022-11-19 08:19:21,876 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e1ac672 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:21, skipping insertion in model container [2022-11-19 08:19:21,877 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:19:21" (1/1) ... [2022-11-19 08:19:21,884 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:19:21,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:19:22,173 WARN L234 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_674c5d3a-9e91-43e2-bb00-2b07046ead6e/sv-benchmarks/c/product-lines/minepump_spec5_product12.cil.c[6299,6312] [2022-11-19 08:19:22,235 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:19:22,244 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:19:22,270 WARN L234 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_674c5d3a-9e91-43e2-bb00-2b07046ead6e/sv-benchmarks/c/product-lines/minepump_spec5_product12.cil.c[6299,6312] [2022-11-19 08:19:22,320 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:19:22,336 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:19:22,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:22 WrapperNode [2022-11-19 08:19:22,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:19:22,338 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:19:22,338 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:19:22,338 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:19:22,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:22" (1/1) ... [2022-11-19 08:19:22,357 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:22" (1/1) ... [2022-11-19 08:19:22,378 INFO L138 Inliner]: procedures = 54, calls = 96, calls flagged for inlining = 24, calls inlined = 18, statements flattened = 145 [2022-11-19 08:19:22,378 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:19:22,379 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:19:22,379 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:19:22,379 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:19:22,389 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:22" (1/1) ... [2022-11-19 08:19:22,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:22" (1/1) ... [2022-11-19 08:19:22,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:22" (1/1) ... [2022-11-19 08:19:22,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:22" (1/1) ... [2022-11-19 08:19:22,395 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:22" (1/1) ... [2022-11-19 08:19:22,400 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:22" (1/1) ... [2022-11-19 08:19:22,402 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:22" (1/1) ... [2022-11-19 08:19:22,403 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:22" (1/1) ... [2022-11-19 08:19:22,405 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:19:22,405 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:19:22,405 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:19:22,406 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:19:22,407 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:22" (1/1) ... [2022-11-19 08:19:22,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:19:22,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674c5d3a-9e91-43e2-bb00-2b07046ead6e/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:19:22,440 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674c5d3a-9e91-43e2-bb00-2b07046ead6e/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:19:22,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674c5d3a-9e91-43e2-bb00-2b07046ead6e/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:19:22,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:19:22,493 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-19 08:19:22,493 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-19 08:19:22,493 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-19 08:19:22,493 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-19 08:19:22,494 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-19 08:19:22,494 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-19 08:19:22,494 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2022-11-19 08:19:22,494 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2022-11-19 08:19:22,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:19:22,494 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-19 08:19:22,495 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-19 08:19:22,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:19:22,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:19:22,595 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:19:22,596 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:19:22,840 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:19:23,068 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:19:23,068 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 08:19:23,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:19:23 BoogieIcfgContainer [2022-11-19 08:19:23,071 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:19:23,083 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:19:23,084 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:19:23,089 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:19:23,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:19:21" (1/3) ... [2022-11-19 08:19:23,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@194cc476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:19:23, skipping insertion in model container [2022-11-19 08:19:23,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:22" (2/3) ... [2022-11-19 08:19:23,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@194cc476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:19:23, skipping insertion in model container [2022-11-19 08:19:23,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:19:23" (3/3) ... [2022-11-19 08:19:23,092 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product12.cil.c [2022-11-19 08:19:23,114 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:19:23,114 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:19:23,161 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:19:23,168 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;@62f0983b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:19:23,169 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:19:23,174 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 31 states have internal predecessors, (38), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-19 08:19:23,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-19 08:19:23,183 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:19:23,184 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:19:23,184 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:19:23,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:19:23,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1931642976, now seen corresponding path program 1 times [2022-11-19 08:19:23,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:19:23,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515859618] [2022-11-19 08:19:23,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:19:23,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:19:23,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:19:23,381 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 08:19:23,382 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:19:23,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515859618] [2022-11-19 08:19:23,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515859618] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:19:23,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:19:23,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:19:23,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391766537] [2022-11-19 08:19:23,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:19:23,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 08:19:23,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:19:23,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 08:19:23,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:19:23,425 INFO L87 Difference]: Start difference. First operand has 42 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 31 states have internal predecessors, (38), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 08:19:23,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:19:23,527 INFO L93 Difference]: Finished difference Result 82 states and 109 transitions. [2022-11-19 08:19:23,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 08:19:23,530 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 19 [2022-11-19 08:19:23,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:19:23,540 INFO L225 Difference]: With dead ends: 82 [2022-11-19 08:19:23,540 INFO L226 Difference]: Without dead ends: 37 [2022-11-19 08:19:23,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:19:23,550 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:19:23,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:19:23,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-19 08:19:23,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-11-19 08:19:23,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 24 states have (on average 1.25) internal successors, (30), 27 states have internal predecessors, (30), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-19 08:19:23,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2022-11-19 08:19:23,605 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 19 [2022-11-19 08:19:23,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:19:23,607 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2022-11-19 08:19:23,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 08:19:23,608 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2022-11-19 08:19:23,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-19 08:19:23,611 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:19:23,612 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:19:23,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:19:23,612 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:19:23,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:19:23,615 INFO L85 PathProgramCache]: Analyzing trace with hash 2127978005, now seen corresponding path program 1 times [2022-11-19 08:19:23,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:19:23,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622997372] [2022-11-19 08:19:23,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:19:23,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:19:23,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:19:24,021 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 08:19:24,022 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:19:24,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622997372] [2022-11-19 08:19:24,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622997372] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:19:24,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:19:24,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 08:19:24,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986998580] [2022-11-19 08:19:24,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:19:24,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:19:24,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:19:24,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:19:24,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:19:24,026 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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) [2022-11-19 08:19:24,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:19:24,202 INFO L93 Difference]: Finished difference Result 71 states and 92 transitions. [2022-11-19 08:19:24,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:19:24,203 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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 22 [2022-11-19 08:19:24,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:19:24,204 INFO L225 Difference]: With dead ends: 71 [2022-11-19 08:19:24,204 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 08:19:24,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:19:24,206 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 29 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:19:24,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 109 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:19:24,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 08:19:24,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 08:19:24,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:19:24,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 08:19:24,208 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2022-11-19 08:19:24,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:19:24,209 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 08:19:24,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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) [2022-11-19 08:19:24,209 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 08:19:24,209 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 08:19:24,212 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 08:19:24,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:19:24,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 08:19:24,286 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 290 301) the Hoare annotation is: true [2022-11-19 08:19:24,286 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 290 301) no Hoare annotation was computed. [2022-11-19 08:19:24,287 INFO L902 garLoopResultBuilder]: At program point L449(lines 424 453) the Hoare annotation is: true [2022-11-19 08:19:24,287 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 424 453) no Hoare annotation was computed. [2022-11-19 08:19:24,287 INFO L899 garLoopResultBuilder]: For program point L445(line 445) no Hoare annotation was computed. [2022-11-19 08:19:24,287 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 424 453) the Hoare annotation is: true [2022-11-19 08:19:24,287 INFO L899 garLoopResultBuilder]: For program point L438(lines 438 442) no Hoare annotation was computed. [2022-11-19 08:19:24,287 INFO L902 garLoopResultBuilder]: At program point L438-1(lines 438 442) the Hoare annotation is: true [2022-11-19 08:19:24,288 INFO L902 garLoopResultBuilder]: At program point L434-2(lines 434 448) the Hoare annotation is: true [2022-11-19 08:19:24,288 INFO L902 garLoopResultBuilder]: At program point L430(line 430) the Hoare annotation is: true [2022-11-19 08:19:24,288 INFO L899 garLoopResultBuilder]: For program point L430-1(line 430) no Hoare annotation was computed. [2022-11-19 08:19:24,288 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 91) no Hoare annotation was computed. [2022-11-19 08:19:24,288 INFO L902 garLoopResultBuilder]: At program point L82(line 82) the Hoare annotation is: true [2022-11-19 08:19:24,288 INFO L899 garLoopResultBuilder]: For program point L82-1(line 82) no Hoare annotation was computed. [2022-11-19 08:19:24,289 INFO L902 garLoopResultBuilder]: At program point L67(line 67) the Hoare annotation is: true [2022-11-19 08:19:24,289 INFO L902 garLoopResultBuilder]: At program point L67-1(line 67) the Hoare annotation is: true [2022-11-19 08:19:24,289 INFO L895 garLoopResultBuilder]: At program point L418(line 418) the Hoare annotation is: (not (= ~pumpRunning~0 0)) [2022-11-19 08:19:24,289 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 94) no Hoare annotation was computed. [2022-11-19 08:19:24,289 INFO L899 garLoopResultBuilder]: For program point L80(lines 80 97) no Hoare annotation was computed. [2022-11-19 08:19:24,289 INFO L902 garLoopResultBuilder]: At program point timeShiftENTRY(lines 114 140) the Hoare annotation is: true [2022-11-19 08:19:24,290 INFO L902 garLoopResultBuilder]: At program point L80-1(lines 72 100) the Hoare annotation is: true [2022-11-19 08:19:24,290 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 114 140) no Hoare annotation was computed. [2022-11-19 08:19:24,290 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 418) no Hoare annotation was computed. [2022-11-19 08:19:24,290 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-19 08:19:24,290 INFO L902 garLoopResultBuilder]: At program point L408(lines 345 412) the Hoare annotation is: true [2022-11-19 08:19:24,291 INFO L899 garLoopResultBuilder]: For program point L375(lines 375 381) no Hoare annotation was computed. [2022-11-19 08:19:24,291 INFO L895 garLoopResultBuilder]: At program point L375-1(lines 375 381) the Hoare annotation is: (= ~pumpRunning~0 0) [2022-11-19 08:19:24,291 INFO L895 garLoopResultBuilder]: At program point L367(line 367) the Hoare annotation is: (= ~pumpRunning~0 0) [2022-11-19 08:19:24,291 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 08:19:24,291 INFO L895 garLoopResultBuilder]: At program point L405(lines 354 406) the Hoare annotation is: (= ~pumpRunning~0 0) [2022-11-19 08:19:24,291 INFO L895 garLoopResultBuilder]: At program point L393-2(lines 385 400) the Hoare annotation is: (= ~pumpRunning~0 0) [2022-11-19 08:19:24,292 INFO L899 garLoopResultBuilder]: For program point L356(lines 355 404) no Hoare annotation was computed. [2022-11-19 08:19:24,292 INFO L895 garLoopResultBuilder]: At program point L509(lines 509 516) the Hoare annotation is: (= ~pumpRunning~0 0) [2022-11-19 08:19:24,292 INFO L902 garLoopResultBuilder]: At program point L509-2(lines 509 516) the Hoare annotation is: true [2022-11-19 08:19:24,292 INFO L895 garLoopResultBuilder]: At program point L377(line 377) the Hoare annotation is: (= ~pumpRunning~0 0) [2022-11-19 08:19:24,292 INFO L895 garLoopResultBuilder]: At program point L402(lines 355 404) the Hoare annotation is: (= ~pumpRunning~0 0) [2022-11-19 08:19:24,293 INFO L899 garLoopResultBuilder]: For program point L365(lines 365 371) no Hoare annotation was computed. [2022-11-19 08:19:24,293 INFO L899 garLoopResultBuilder]: For program point L365-1(lines 365 371) no Hoare annotation was computed. [2022-11-19 08:19:24,293 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 278 289) no Hoare annotation was computed. [2022-11-19 08:19:24,293 INFO L902 garLoopResultBuilder]: At program point waterRiseENTRY(lines 278 289) the Hoare annotation is: true [2022-11-19 08:19:24,293 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 193 201) no Hoare annotation was computed. [2022-11-19 08:19:24,293 INFO L902 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 193 201) the Hoare annotation is: true [2022-11-19 08:19:24,297 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-19 08:19:24,315 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:19:24,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:19:24 BoogieIcfgContainer [2022-11-19 08:19:24,332 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:19:24,332 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:19:24,333 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:19:24,333 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:19:24,333 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:19:23" (3/4) ... [2022-11-19 08:19:24,338 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 08:19:24,344 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-19 08:19:24,344 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-19 08:19:24,344 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-19 08:19:24,345 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-19 08:19:24,345 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2022-11-19 08:19:24,356 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 44 nodes and edges [2022-11-19 08:19:24,357 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-19 08:19:24,357 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-19 08:19:24,358 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 08:19:24,358 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 08:19:24,421 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674c5d3a-9e91-43e2-bb00-2b07046ead6e/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 08:19:24,426 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:19:24,427 INFO L158 Benchmark]: Toolchain (without parser) took 2561.12ms. Allocated memory was 104.9MB in the beginning and 140.5MB in the end (delta: 35.7MB). Free memory was 71.1MB in the beginning and 92.3MB in the end (delta: -21.1MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2022-11-19 08:19:24,427 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 104.9MB. Free memory is still 58.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:19:24,429 INFO L158 Benchmark]: CACSL2BoogieTranslator took 466.59ms. Allocated memory is still 104.9MB. Free memory was 70.9MB in the beginning and 73.1MB in the end (delta: -2.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 08:19:24,429 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.77ms. Allocated memory is still 104.9MB. Free memory was 72.7MB in the beginning and 71.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:19:24,430 INFO L158 Benchmark]: Boogie Preprocessor took 25.56ms. Allocated memory is still 104.9MB. Free memory was 71.0MB in the beginning and 69.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:19:24,430 INFO L158 Benchmark]: RCFGBuilder took 665.77ms. Allocated memory was 104.9MB in the beginning and 140.5MB in the end (delta: 35.7MB). Free memory was 69.5MB in the beginning and 114.8MB in the end (delta: -45.3MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. [2022-11-19 08:19:24,431 INFO L158 Benchmark]: TraceAbstraction took 1248.43ms. Allocated memory is still 140.5MB. Free memory was 115.3MB in the beginning and 97.5MB in the end (delta: 17.8MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2022-11-19 08:19:24,431 INFO L158 Benchmark]: Witness Printer took 93.47ms. Allocated memory is still 140.5MB. Free memory was 96.4MB in the beginning and 92.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 08:19:24,434 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 104.9MB. Free memory is still 58.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 466.59ms. Allocated memory is still 104.9MB. Free memory was 70.9MB in the beginning and 73.1MB in the end (delta: -2.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.77ms. Allocated memory is still 104.9MB. Free memory was 72.7MB in the beginning and 71.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.56ms. Allocated memory is still 104.9MB. Free memory was 71.0MB in the beginning and 69.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 665.77ms. Allocated memory was 104.9MB in the beginning and 140.5MB in the end (delta: 35.7MB). Free memory was 69.5MB in the beginning and 114.8MB in the end (delta: -45.3MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1248.43ms. Allocated memory is still 140.5MB. Free memory was 115.3MB in the beginning and 97.5MB in the end (delta: 17.8MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. * Witness Printer took 93.47ms. Allocated memory is still 140.5MB. Free memory was 96.4MB in the beginning and 92.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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: 418]: 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 6 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 148 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 77 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 78 IncrementalHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 71 mSDtfsCounter, 78 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 24 LocationsWithAnnotation, 91 PreInvPairs, 109 NumberOfFragments, 41 HoareAnnotationTreeSize, 91 FomulaSimplifications, 39 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 24 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 85 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 4/4 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: 355]: Loop Invariant Derived loop invariant: pumpRunning == 0 - InvariantResult [Line: 509]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 509]: Loop Invariant Derived loop invariant: pumpRunning == 0 - InvariantResult [Line: 354]: Loop Invariant Derived loop invariant: pumpRunning == 0 - InvariantResult [Line: 345]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 424]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 418]: Loop Invariant Derived loop invariant: !(pumpRunning == 0) - InvariantResult [Line: 375]: Loop Invariant Derived loop invariant: pumpRunning == 0 - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 434]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-19 08:19:24,451 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674c5d3a-9e91-43e2-bb00-2b07046ead6e/bin/utaipan-I9t0OCRTmS/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