./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product11.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_477e736d-af24-4ea7-a05c-9a3cc902e55d/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_477e736d-af24-4ea7-a05c-9a3cc902e55d/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_477e736d-af24-4ea7-a05c-9a3cc902e55d/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_477e736d-af24-4ea7-a05c-9a3cc902e55d/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product11.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_477e736d-af24-4ea7-a05c-9a3cc902e55d/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_477e736d-af24-4ea7-a05c-9a3cc902e55d/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 a02362aeafc2e43a1be9ec43f97ab5a222e55f9c6ade6d7cf376000405834eaa --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:45:57,745 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:45:57,747 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:45:57,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:45:57,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:45:57,806 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:45:57,807 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:45:57,809 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:45:57,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:45:57,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:45:57,814 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:45:57,815 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:45:57,816 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:45:57,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:45:57,818 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:45:57,820 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:45:57,821 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:45:57,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:45:57,824 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:45:57,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:45:57,835 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:45:57,837 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:45:57,843 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:45:57,845 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:45:57,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:45:57,855 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:45:57,855 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:45:57,856 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:45:57,858 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:45:57,860 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:45:57,861 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:45:57,862 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:45:57,864 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:45:57,865 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:45:57,867 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:45:57,867 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:45:57,868 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:45:57,868 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:45:57,868 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:45:57,869 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:45:57,870 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:45:57,871 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_477e736d-af24-4ea7-a05c-9a3cc902e55d/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 02:45:57,906 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:45:57,906 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:45:57,907 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:45:57,907 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:45:57,908 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:45:57,908 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:45:57,908 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:45:57,908 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:45:57,909 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:45:57,909 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:45:57,909 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:45:57,909 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:45:57,909 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:45:57,910 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:45:57,910 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:45:57,910 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:45:57,910 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:45:57,910 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:45:57,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:45:57,911 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:45:57,912 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:45:57,912 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:45:57,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:45:57,912 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:45:57,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:45:57,913 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:45:57,913 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:45:57,913 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:45:57,913 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:45:57,913 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:45:57,914 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:45:57,914 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:45:57,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:45:57,914 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:45:57,915 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:45:57,915 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:45:57,915 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:45:57,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:45:57,915 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:45:57,916 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:45:57,916 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:45:57,916 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_477e736d-af24-4ea7-a05c-9a3cc902e55d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_477e736d-af24-4ea7-a05c-9a3cc902e55d/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a02362aeafc2e43a1be9ec43f97ab5a222e55f9c6ade6d7cf376000405834eaa [2021-11-23 02:45:58,177 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:45:58,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:45:58,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:45:58,214 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:45:58,215 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:45:58,216 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_477e736d-af24-4ea7-a05c-9a3cc902e55d/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/product-lines/minepump_spec5_product11.cil.c [2021-11-23 02:45:58,301 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_477e736d-af24-4ea7-a05c-9a3cc902e55d/bin/utaipan-EQgc7hIp5V/data/c39db0744/11f51f627086411487c423a1fcb164ad/FLAGf3caecf9d [2021-11-23 02:45:58,775 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:45:58,776 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_477e736d-af24-4ea7-a05c-9a3cc902e55d/sv-benchmarks/c/product-lines/minepump_spec5_product11.cil.c [2021-11-23 02:45:58,797 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_477e736d-af24-4ea7-a05c-9a3cc902e55d/bin/utaipan-EQgc7hIp5V/data/c39db0744/11f51f627086411487c423a1fcb164ad/FLAGf3caecf9d [2021-11-23 02:45:59,118 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_477e736d-af24-4ea7-a05c-9a3cc902e55d/bin/utaipan-EQgc7hIp5V/data/c39db0744/11f51f627086411487c423a1fcb164ad [2021-11-23 02:45:59,121 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:45:59,124 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:45:59,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:45:59,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:45:59,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:45:59,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:45:59" (1/1) ... [2021-11-23 02:45:59,131 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cd98b9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:59, skipping insertion in model container [2021-11-23 02:45:59,131 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:45:59" (1/1) ... [2021-11-23 02:45:59,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:45:59,239 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:45:59,388 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_477e736d-af24-4ea7-a05c-9a3cc902e55d/sv-benchmarks/c/product-lines/minepump_spec5_product11.cil.c[2807,2820] [2021-11-23 02:45:59,509 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:45:59,520 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:45:59,557 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_477e736d-af24-4ea7-a05c-9a3cc902e55d/sv-benchmarks/c/product-lines/minepump_spec5_product11.cil.c[2807,2820] [2021-11-23 02:45:59,617 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:45:59,634 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:45:59,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:59 WrapperNode [2021-11-23 02:45:59,635 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:45:59,636 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:45:59,636 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:45:59,636 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:45:59,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:59" (1/1) ... [2021-11-23 02:45:59,673 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:59" (1/1) ... [2021-11-23 02:45:59,714 INFO L137 Inliner]: procedures = 53, calls = 151, calls flagged for inlining = 23, calls inlined = 17, statements flattened = 198 [2021-11-23 02:45:59,715 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:45:59,716 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:45:59,716 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:45:59,716 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:45:59,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:59" (1/1) ... [2021-11-23 02:45:59,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:59" (1/1) ... [2021-11-23 02:45:59,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:59" (1/1) ... [2021-11-23 02:45:59,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:59" (1/1) ... [2021-11-23 02:45:59,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:59" (1/1) ... [2021-11-23 02:45:59,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:59" (1/1) ... [2021-11-23 02:45:59,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:59" (1/1) ... [2021-11-23 02:45:59,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:45:59,776 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:45:59,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:45:59,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:45:59,777 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:59" (1/1) ... [2021-11-23 02:45:59,786 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:45:59,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_477e736d-af24-4ea7-a05c-9a3cc902e55d/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:45:59,815 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_477e736d-af24-4ea7-a05c-9a3cc902e55d/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:45:59,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_477e736d-af24-4ea7-a05c-9a3cc902e55d/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:45:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:45:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-23 02:45:59,866 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-23 02:45:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-23 02:45:59,866 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-23 02:45:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-23 02:45:59,867 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-23 02:45:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-11-23 02:45:59,867 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-11-23 02:45:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:45:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-23 02:45:59,867 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-23 02:45:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:45:59,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:45:59,961 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:45:59,963 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:46:00,305 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:46:00,442 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:46:00,443 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 02:46:00,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:46:00 BoogieIcfgContainer [2021-11-23 02:46:00,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:46:00,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:46:00,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:46:00,454 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:46:00,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:45:59" (1/3) ... [2021-11-23 02:46:00,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@755c2039 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:46:00, skipping insertion in model container [2021-11-23 02:46:00,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:59" (2/3) ... [2021-11-23 02:46:00,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@755c2039 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:46:00, skipping insertion in model container [2021-11-23 02:46:00,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:46:00" (3/3) ... [2021-11-23 02:46:00,458 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product11.cil.c [2021-11-23 02:46:00,464 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:46:00,464 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:46:00,519 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:46:00,526 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 02:46:00,526 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:46:00,544 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) [2021-11-23 02:46:00,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 02:46:00,550 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:46:00,550 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:46:00,551 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:46:00,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:46:00,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1483463337, now seen corresponding path program 1 times [2021-11-23 02:46:00,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:46:00,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142023423] [2021-11-23 02:46:00,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:00,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:46:00,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:46:00,756 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 02:46:00,757 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:46:00,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142023423] [2021-11-23 02:46:00,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142023423] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:46:00,758 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:46:00,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:46:00,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14265335] [2021-11-23 02:46:00,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:46:00,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 02:46:00,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:46:00,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 02:46:00,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:46:00,796 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) [2021-11-23 02:46:00,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:46:00,852 INFO L93 Difference]: Finished difference Result 82 states and 109 transitions. [2021-11-23 02:46:00,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 02:46:00,855 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 [2021-11-23 02:46:00,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:46:00,863 INFO L225 Difference]: With dead ends: 82 [2021-11-23 02:46:00,863 INFO L226 Difference]: Without dead ends: 37 [2021-11-23 02:46:00,866 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 02:46:00,870 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:46:00,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:46:00,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-11-23 02:46:00,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-11-23 02:46:00,909 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) [2021-11-23 02:46:00,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2021-11-23 02:46:00,912 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 19 [2021-11-23 02:46:00,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:46:00,913 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2021-11-23 02:46:00,913 INFO L471 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) [2021-11-23 02:46:00,914 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2021-11-23 02:46:00,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 02:46:00,916 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:46:00,916 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:46:00,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:46:00,916 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:46:00,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:46:00,917 INFO L85 PathProgramCache]: Analyzing trace with hash 625899866, now seen corresponding path program 1 times [2021-11-23 02:46:00,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:46:00,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993705970] [2021-11-23 02:46:00,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:00,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:46:00,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:46:00,998 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 02:46:00,999 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:46:00,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993705970] [2021-11-23 02:46:00,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993705970] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:46:00,999 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:46:01,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:46:01,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741299208] [2021-11-23 02:46:01,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:46:01,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:46:01,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:46:01,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:46:01,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:46:01,003 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 02:46:01,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:46:01,050 INFO L93 Difference]: Finished difference Result 51 states and 61 transitions. [2021-11-23 02:46:01,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:46:01,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 20 [2021-11-23 02:46:01,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:46:01,056 INFO L225 Difference]: With dead ends: 51 [2021-11-23 02:46:01,056 INFO L226 Difference]: Without dead ends: 29 [2021-11-23 02:46:01,057 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 02:46:01,059 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 7 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:46:01,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 41 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:46:01,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-11-23 02:46:01,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-11-23 02:46:01,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.263157894736842) internal successors, (24), 22 states have internal predecessors, (24), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-23 02:46:01,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2021-11-23 02:46:01,067 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 20 [2021-11-23 02:46:01,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:46:01,076 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2021-11-23 02:46:01,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 02:46:01,076 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2021-11-23 02:46:01,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 02:46:01,077 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:46:01,077 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 02:46:01,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:46:01,078 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:46:01,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:46:01,079 INFO L85 PathProgramCache]: Analyzing trace with hash 288208379, now seen corresponding path program 1 times [2021-11-23 02:46:01,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:46:01,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410837641] [2021-11-23 02:46:01,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:01,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:46:01,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:46:01,276 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 02:46:01,276 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:46:01,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410837641] [2021-11-23 02:46:01,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410837641] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:46:01,277 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:46:01,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 02:46:01,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491068090] [2021-11-23 02:46:01,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:46:01,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 02:46:01,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:46:01,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 02:46:01,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:46:01,280 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (3), 1 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 02:46:01,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:46:01,550 INFO L93 Difference]: Finished difference Result 65 states and 76 transitions. [2021-11-23 02:46:01,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-23 02:46:01,551 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (3), 1 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 22 [2021-11-23 02:46:01,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:46:01,552 INFO L225 Difference]: With dead ends: 65 [2021-11-23 02:46:01,552 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 02:46:01,553 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2021-11-23 02:46:01,555 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 41 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:46:01,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 200 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 02:46:01,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 02:46:01,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 02:46:01,557 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 02:46:01,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 02:46:01,565 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2021-11-23 02:46:01,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:46:01,565 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 02:46:01,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (3), 1 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 02:46:01,565 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 02:46:01,566 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 02:46:01,568 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 02:46:01,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:46:01,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 02:46:01,655 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 82 93) the Hoare annotation is: true [2021-11-23 02:46:01,655 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 82 93) no Hoare annotation was computed. [2021-11-23 02:46:01,655 INFO L854 garLoopResultBuilder]: At program point L895(line 895) the Hoare annotation is: (= ~pumpRunning~0 ~switchedOnBeforeTS~0) [2021-11-23 02:46:01,655 INFO L858 garLoopResultBuilder]: For program point L895-1(line 895) no Hoare annotation was computed. [2021-11-23 02:46:01,656 INFO L854 garLoopResultBuilder]: At program point L140(line 140) the Hoare annotation is: false [2021-11-23 02:46:01,656 INFO L854 garLoopResultBuilder]: At program point L880(line 880) the Hoare annotation is: (or (not (= ~switchedOnBeforeTS~0 0)) (= |old(~switchedOnBeforeTS~0)| 0)) [2021-11-23 02:46:01,656 INFO L854 garLoopResultBuilder]: At program point L880-1(line 880) the Hoare annotation is: (and (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__2_#t~ret48#1|) (or (not (= ~switchedOnBeforeTS~0 0)) (= |old(~switchedOnBeforeTS~0)| 0))) [2021-11-23 02:46:01,656 INFO L858 garLoopResultBuilder]: For program point L897(lines 897 907) no Hoare annotation was computed. [2021-11-23 02:46:01,656 INFO L858 garLoopResultBuilder]: For program point L893(lines 893 910) no Hoare annotation was computed. [2021-11-23 02:46:01,657 INFO L854 garLoopResultBuilder]: At program point L893-1(lines 885 913) the Hoare annotation is: (= ~pumpRunning~0 ~switchedOnBeforeTS~0) [2021-11-23 02:46:01,657 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 293 319) the Hoare annotation is: (or (not (= ~switchedOnBeforeTS~0 0)) (= |old(~switchedOnBeforeTS~0)| 0)) [2021-11-23 02:46:01,657 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 293 319) no Hoare annotation was computed. [2021-11-23 02:46:01,657 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 140) no Hoare annotation was computed. [2021-11-23 02:46:01,657 INFO L858 garLoopResultBuilder]: For program point L898(lines 898 904) no Hoare annotation was computed. [2021-11-23 02:46:01,657 INFO L858 garLoopResultBuilder]: For program point L161(lines 161 165) no Hoare annotation was computed. [2021-11-23 02:46:01,658 INFO L861 garLoopResultBuilder]: At program point L161-1(lines 161 165) the Hoare annotation is: true [2021-11-23 02:46:01,658 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 147 176) no Hoare annotation was computed. [2021-11-23 02:46:01,658 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 147 176) the Hoare annotation is: true [2021-11-23 02:46:01,658 INFO L861 garLoopResultBuilder]: At program point L157-2(lines 157 171) the Hoare annotation is: true [2021-11-23 02:46:01,658 INFO L861 garLoopResultBuilder]: At program point L153(line 153) the Hoare annotation is: true [2021-11-23 02:46:01,658 INFO L858 garLoopResultBuilder]: For program point L153-1(line 153) no Hoare annotation was computed. [2021-11-23 02:46:01,659 INFO L861 garLoopResultBuilder]: At program point L172(lines 147 176) the Hoare annotation is: true [2021-11-23 02:46:01,659 INFO L858 garLoopResultBuilder]: For program point L168(line 168) no Hoare annotation was computed. [2021-11-23 02:46:01,659 INFO L858 garLoopResultBuilder]: For program point L444(lines 443 490) no Hoare annotation was computed. [2021-11-23 02:46:01,659 INFO L854 garLoopResultBuilder]: At program point L465(line 465) the Hoare annotation is: (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) [2021-11-23 02:46:01,659 INFO L861 garLoopResultBuilder]: At program point L494(lines 433 498) the Hoare annotation is: true [2021-11-23 02:46:01,659 INFO L858 garLoopResultBuilder]: For program point L453(lines 453 459) no Hoare annotation was computed. [2021-11-23 02:46:01,660 INFO L858 garLoopResultBuilder]: For program point L453-1(lines 453 459) no Hoare annotation was computed. [2021-11-23 02:46:01,660 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-11-23 02:46:01,660 INFO L854 garLoopResultBuilder]: At program point L235(lines 235 242) the Hoare annotation is: (= ~pumpRunning~0 ~switchedOnBeforeTS~0) [2021-11-23 02:46:01,660 INFO L854 garLoopResultBuilder]: At program point L491(lines 442 492) the Hoare annotation is: false [2021-11-23 02:46:01,660 INFO L861 garLoopResultBuilder]: At program point L235-2(lines 235 242) the Hoare annotation is: true [2021-11-23 02:46:01,660 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 02:46:01,661 INFO L854 garLoopResultBuilder]: At program point L479-2(lines 473 486) the Hoare annotation is: (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) [2021-11-23 02:46:01,661 INFO L858 garLoopResultBuilder]: For program point L463(lines 463 469) no Hoare annotation was computed. [2021-11-23 02:46:01,661 INFO L854 garLoopResultBuilder]: At program point L463-1(lines 463 469) the Hoare annotation is: (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) [2021-11-23 02:46:01,661 INFO L854 garLoopResultBuilder]: At program point L488(lines 443 490) the Hoare annotation is: (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) [2021-11-23 02:46:01,661 INFO L854 garLoopResultBuilder]: At program point L455(line 455) the Hoare annotation is: (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) [2021-11-23 02:46:01,662 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 70 81) no Hoare annotation was computed. [2021-11-23 02:46:01,662 INFO L861 garLoopResultBuilder]: At program point waterRiseENTRY(lines 70 81) the Hoare annotation is: true [2021-11-23 02:46:01,662 INFO L858 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 372 380) no Hoare annotation was computed. [2021-11-23 02:46:01,662 INFO L861 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 372 380) the Hoare annotation is: true [2021-11-23 02:46:01,666 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-23 02:46:01,667 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 02:46:01,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:46:01 BoogieIcfgContainer [2021-11-23 02:46:01,681 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 02:46:01,682 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 02:46:01,682 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 02:46:01,682 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 02:46:01,683 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:46:00" (3/4) ... [2021-11-23 02:46:01,685 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 02:46:01,691 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-11-23 02:46:01,691 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-11-23 02:46:01,691 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-11-23 02:46:01,691 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-11-23 02:46:01,692 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2021-11-23 02:46:01,699 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 71 nodes and edges [2021-11-23 02:46:01,700 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2021-11-23 02:46:01,700 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-11-23 02:46:01,701 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-23 02:46:01,701 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 02:46:01,702 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 02:46:01,702 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 02:46:01,727 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: pumpRunning == aux-isPumpRunning()-aux && (!(switchedOnBeforeTS == 0) || \old(switchedOnBeforeTS) == 0) [2021-11-23 02:46:01,763 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_477e736d-af24-4ea7-a05c-9a3cc902e55d/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 02:46:01,763 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 02:46:01,764 INFO L158 Benchmark]: Toolchain (without parser) took 2641.39ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 56.4MB in the beginning and 78.3MB in the end (delta: -21.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:46:01,764 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 96.5MB. Free memory was 73.8MB in the beginning and 73.7MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:46:01,764 INFO L158 Benchmark]: CACSL2BoogieTranslator took 509.57ms. Allocated memory is still 96.5MB. Free memory was 56.2MB in the beginning and 59.0MB in the end (delta: -2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 02:46:01,765 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.58ms. Allocated memory is still 96.5MB. Free memory was 59.0MB in the beginning and 56.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 02:46:01,765 INFO L158 Benchmark]: Boogie Preprocessor took 59.07ms. Allocated memory is still 96.5MB. Free memory was 56.6MB in the beginning and 55.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 02:46:01,766 INFO L158 Benchmark]: RCFGBuilder took 671.25ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 55.2MB in the beginning and 91.1MB in the end (delta: -35.9MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. [2021-11-23 02:46:01,766 INFO L158 Benchmark]: TraceAbstraction took 1231.87ms. Allocated memory is still 117.4MB. Free memory was 91.1MB in the beginning and 83.7MB in the end (delta: 7.4MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2021-11-23 02:46:01,767 INFO L158 Benchmark]: Witness Printer took 81.30ms. Allocated memory is still 117.4MB. Free memory was 83.7MB in the beginning and 78.3MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 02:46:01,769 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 96.5MB. Free memory was 73.8MB in the beginning and 73.7MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 509.57ms. Allocated memory is still 96.5MB. Free memory was 56.2MB in the beginning and 59.0MB in the end (delta: -2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.58ms. Allocated memory is still 96.5MB. Free memory was 59.0MB in the beginning and 56.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.07ms. Allocated memory is still 96.5MB. Free memory was 56.6MB in the beginning and 55.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 671.25ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 55.2MB in the beginning and 91.1MB in the end (delta: -35.9MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1231.87ms. Allocated memory is still 117.4MB. Free memory was 91.1MB in the beginning and 83.7MB in the end (delta: 7.4MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * Witness Printer took 81.30ms. Allocated memory is still 117.4MB. Free memory was 83.7MB in the beginning and 78.3MB in the end (delta: 5.4MB). 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: 140]: 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: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 53 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 48 mSDsluCounter, 280 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 241 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 262 IncrementalHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 112 mSDtfsCounter, 262 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 18, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 24 LocationsWithAnnotation, 77 PreInvPairs, 100 NumberOfFragments, 65 HoareAnnotationTreeSize, 77 FomulaSimplifications, 123 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 24 FomulaSimplificationsInter, 84 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 79 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 6/6 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: 433]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 235]: Loop Invariant Derived loop invariant: pumpRunning == switchedOnBeforeTS - InvariantResult [Line: 885]: Loop Invariant Derived loop invariant: pumpRunning == switchedOnBeforeTS - InvariantResult [Line: 157]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 442]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 463]: Loop Invariant Derived loop invariant: splverifierCounter == 0 - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 147]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 235]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: pumpRunning == aux-isPumpRunning()-aux && (!(switchedOnBeforeTS == 0) || \old(switchedOnBeforeTS) == 0) - InvariantResult [Line: 443]: Loop Invariant Derived loop invariant: splverifierCounter == 0 RESULT: Ultimate proved your program to be correct! [2021-11-23 02:46:01,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_477e736d-af24-4ea7-a05c-9a3cc902e55d/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE