./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product15.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_1f4ca1e1-5fb1-4192-a98a-baa9f1967610/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4ca1e1-5fb1-4192-a98a-baa9f1967610/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_1f4ca1e1-5fb1-4192-a98a-baa9f1967610/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4ca1e1-5fb1-4192-a98a-baa9f1967610/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product15.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4ca1e1-5fb1-4192-a98a-baa9f1967610/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_1f4ca1e1-5fb1-4192-a98a-baa9f1967610/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 d8f3facefcf920bf8f8138d914907ca196bce75367abcd95ac8ef69b29697377 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:33:03,057 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:33:03,061 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:33:03,099 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:33:03,106 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:33:03,111 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:33:03,114 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:33:03,118 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:33:03,121 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:33:03,128 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:33:03,129 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:33:03,131 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:33:03,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:33:03,134 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:33:03,136 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:33:03,138 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:33:03,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:33:03,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:33:03,149 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:33:03,152 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:33:03,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:33:03,160 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:33:03,161 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:33:03,163 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:33:03,169 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:33:03,170 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:33:03,170 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:33:03,172 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:33:03,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:33:03,175 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:33:03,176 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:33:03,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:33:03,178 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:33:03,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:33:03,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:33:03,182 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:33:03,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:33:03,183 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:33:03,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:33:03,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:33:03,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:33:03,186 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4ca1e1-5fb1-4192-a98a-baa9f1967610/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 02:33:03,233 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:33:03,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:33:03,234 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:33:03,234 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:33:03,241 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:33:03,242 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:33:03,242 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:33:03,242 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:33:03,242 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:33:03,243 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:33:03,244 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:33:03,244 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:33:03,244 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:33:03,244 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:33:03,245 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:33:03,245 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:33:03,245 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:33:03,245 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:33:03,246 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:33:03,246 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:33:03,247 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:33:03,247 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:33:03,247 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:33:03,247 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:33:03,247 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:33:03,248 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:33:03,249 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:33:03,249 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:33:03,250 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:33:03,250 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:33:03,250 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:33:03,250 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:33:03,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:33:03,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:33:03,251 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:33:03,251 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:33:03,252 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:33:03,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:33:03,252 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:33:03,252 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:33:03,252 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:33:03,253 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_1f4ca1e1-5fb1-4192-a98a-baa9f1967610/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4ca1e1-5fb1-4192-a98a-baa9f1967610/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8f3facefcf920bf8f8138d914907ca196bce75367abcd95ac8ef69b29697377 [2021-11-23 02:33:03,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:33:03,543 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:33:03,545 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:33:03,546 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:33:03,547 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:33:03,548 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4ca1e1-5fb1-4192-a98a-baa9f1967610/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/product-lines/minepump_spec5_product15.cil.c [2021-11-23 02:33:03,606 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4ca1e1-5fb1-4192-a98a-baa9f1967610/bin/utaipan-EQgc7hIp5V/data/70a974fc8/f603ceece07f4751ab1feef0c3ec3bea/FLAG9ecf12641 [2021-11-23 02:33:04,145 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:33:04,146 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4ca1e1-5fb1-4192-a98a-baa9f1967610/sv-benchmarks/c/product-lines/minepump_spec5_product15.cil.c [2021-11-23 02:33:04,159 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4ca1e1-5fb1-4192-a98a-baa9f1967610/bin/utaipan-EQgc7hIp5V/data/70a974fc8/f603ceece07f4751ab1feef0c3ec3bea/FLAG9ecf12641 [2021-11-23 02:33:04,487 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4ca1e1-5fb1-4192-a98a-baa9f1967610/bin/utaipan-EQgc7hIp5V/data/70a974fc8/f603ceece07f4751ab1feef0c3ec3bea [2021-11-23 02:33:04,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:33:04,494 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:33:04,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:33:04,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:33:04,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:33:04,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:33:04" (1/1) ... [2021-11-23 02:33:04,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a7b71cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:33:04, skipping insertion in model container [2021-11-23 02:33:04,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:33:04" (1/1) ... [2021-11-23 02:33:04,514 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:33:04,575 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:33:04,884 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_1f4ca1e1-5fb1-4192-a98a-baa9f1967610/sv-benchmarks/c/product-lines/minepump_spec5_product15.cil.c[17325,17338] [2021-11-23 02:33:04,895 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:33:04,908 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:33:05,022 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_1f4ca1e1-5fb1-4192-a98a-baa9f1967610/sv-benchmarks/c/product-lines/minepump_spec5_product15.cil.c[17325,17338] [2021-11-23 02:33:05,024 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:33:05,042 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:33:05,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:33:05 WrapperNode [2021-11-23 02:33:05,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:33:05,043 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:33:05,044 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:33:05,044 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:33:05,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:33:05" (1/1) ... [2021-11-23 02:33:05,064 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:33:05" (1/1) ... [2021-11-23 02:33:05,093 INFO L137 Inliner]: procedures = 54, calls = 155, calls flagged for inlining = 21, calls inlined = 17, statements flattened = 221 [2021-11-23 02:33:05,093 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:33:05,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:33:05,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:33:05,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:33:05,102 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:33:05" (1/1) ... [2021-11-23 02:33:05,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:33:05" (1/1) ... [2021-11-23 02:33:05,106 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:33:05" (1/1) ... [2021-11-23 02:33:05,106 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:33:05" (1/1) ... [2021-11-23 02:33:05,114 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:33:05" (1/1) ... [2021-11-23 02:33:05,119 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:33:05" (1/1) ... [2021-11-23 02:33:05,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:33:05" (1/1) ... [2021-11-23 02:33:05,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:33:05,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:33:05,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:33:05,125 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:33:05,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:33:05" (1/1) ... [2021-11-23 02:33:05,140 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:33:05,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4ca1e1-5fb1-4192-a98a-baa9f1967610/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:33:05,161 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4ca1e1-5fb1-4192-a98a-baa9f1967610/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:33:05,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4ca1e1-5fb1-4192-a98a-baa9f1967610/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:33:05,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:33:05,203 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-23 02:33:05,203 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-23 02:33:05,203 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-23 02:33:05,203 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-23 02:33:05,203 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-23 02:33:05,203 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-23 02:33:05,203 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-11-23 02:33:05,204 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-11-23 02:33:05,204 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-11-23 02:33:05,204 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-11-23 02:33:05,204 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-11-23 02:33:05,204 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-11-23 02:33:05,204 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-11-23 02:33:05,204 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-11-23 02:33:05,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:33:05,205 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-23 02:33:05,205 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-23 02:33:05,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:33:05,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:33:05,274 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:33:05,276 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:33:05,644 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:33:05,703 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:33:05,707 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 02:33:05,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:33:05 BoogieIcfgContainer [2021-11-23 02:33:05,710 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:33:05,712 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:33:05,713 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:33:05,716 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:33:05,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:33:04" (1/3) ... [2021-11-23 02:33:05,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48b4515f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:33:05, skipping insertion in model container [2021-11-23 02:33:05,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:33:05" (2/3) ... [2021-11-23 02:33:05,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48b4515f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:33:05, skipping insertion in model container [2021-11-23 02:33:05,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:33:05" (3/3) ... [2021-11-23 02:33:05,720 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product15.cil.c [2021-11-23 02:33:05,725 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:33:05,726 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:33:05,789 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:33:05,799 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 02:33:05,799 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:33:05,861 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 40 states have (on average 1.425) internal successors, (57), 47 states have internal predecessors, (57), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-23 02:33:05,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 02:33:05,869 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:33:05,870 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:33:05,871 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:33:05,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:33:05,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1478423140, now seen corresponding path program 1 times [2021-11-23 02:33:05,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:33:05,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755396413] [2021-11-23 02:33:05,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:33:05,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:33:06,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:33:06,118 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 02:33:06,118 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:33:06,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755396413] [2021-11-23 02:33:06,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755396413] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:33:06,120 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:33:06,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:33:06,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719768443] [2021-11-23 02:33:06,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:33:06,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 02:33:06,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:33:06,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 02:33:06,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:33:06,158 INFO L87 Difference]: Start difference. First operand has 63 states, 40 states have (on average 1.425) internal successors, (57), 47 states have internal predecessors, (57), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:33:06,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:33:06,215 INFO L93 Difference]: Finished difference Result 124 states and 167 transitions. [2021-11-23 02:33:06,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 02:33:06,218 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2021-11-23 02:33:06,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:33:06,227 INFO L225 Difference]: With dead ends: 124 [2021-11-23 02:33:06,227 INFO L226 Difference]: Without dead ends: 58 [2021-11-23 02:33:06,231 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 02:33:06,235 INFO L933 BasicCegarLoop]: 65 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:33:06,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:33:06,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-11-23 02:33:06,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2021-11-23 02:33:06,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 43 states have internal predecessors, (49), 13 states have call successors, (13), 8 states have call predecessors, (13), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-23 02:33:06,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 74 transitions. [2021-11-23 02:33:06,283 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 74 transitions. Word has length 21 [2021-11-23 02:33:06,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:33:06,284 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 74 transitions. [2021-11-23 02:33:06,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:33:06,285 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 74 transitions. [2021-11-23 02:33:06,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 02:33:06,289 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:33:06,289 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 02:33:06,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:33:06,291 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:33:06,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:33:06,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1202924552, now seen corresponding path program 1 times [2021-11-23 02:33:06,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:33:06,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627361020] [2021-11-23 02:33:06,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:33:06,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:33:06,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:33:06,411 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 02:33:06,412 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:33:06,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627361020] [2021-11-23 02:33:06,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627361020] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:33:06,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:33:06,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:33:06,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689506979] [2021-11-23 02:33:06,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:33:06,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:33:06,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:33:06,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:33:06,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:33:06,421 INFO L87 Difference]: Start difference. First operand 58 states and 74 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:33:06,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:33:06,496 INFO L93 Difference]: Finished difference Result 88 states and 110 transitions. [2021-11-23 02:33:06,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:33:06,497 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2021-11-23 02:33:06,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:33:06,499 INFO L225 Difference]: With dead ends: 88 [2021-11-23 02:33:06,501 INFO L226 Difference]: Without dead ends: 50 [2021-11-23 02:33:06,502 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 02:33:06,505 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 14 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:33:06,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 85 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:33:06,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-11-23 02:33:06,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-11-23 02:33:06,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 32 states have (on average 1.34375) internal successors, (43), 38 states have internal predecessors, (43), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2021-11-23 02:33:06,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 63 transitions. [2021-11-23 02:33:06,526 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 63 transitions. Word has length 22 [2021-11-23 02:33:06,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:33:06,528 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 63 transitions. [2021-11-23 02:33:06,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:33:06,529 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 63 transitions. [2021-11-23 02:33:06,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 02:33:06,533 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:33:06,534 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:33:06,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:33:06,534 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:33:06,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:33:06,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1745311422, now seen corresponding path program 1 times [2021-11-23 02:33:06,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:33:06,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953918590] [2021-11-23 02:33:06,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:33:06,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:33:06,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:33:06,660 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 02:33:06,661 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:33:06,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953918590] [2021-11-23 02:33:06,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953918590] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:33:06,661 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:33:06,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:33:06,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376984603] [2021-11-23 02:33:06,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:33:06,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:33:06,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:33:06,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:33:06,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:33:06,664 INFO L87 Difference]: Start difference. First operand 50 states and 63 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 02:33:06,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:33:06,827 INFO L93 Difference]: Finished difference Result 148 states and 195 transitions. [2021-11-23 02:33:06,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:33:06,828 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2021-11-23 02:33:06,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:33:06,838 INFO L225 Difference]: With dead ends: 148 [2021-11-23 02:33:06,838 INFO L226 Difference]: Without dead ends: 100 [2021-11-23 02:33:06,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:33:06,844 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 75 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:33:06,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 157 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:33:06,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-11-23 02:33:06,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 83. [2021-11-23 02:33:06,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 54 states have (on average 1.3518518518518519) internal successors, (73), 63 states have internal predecessors, (73), 16 states have call successors, (16), 12 states have call predecessors, (16), 12 states have return successors, (17), 13 states have call predecessors, (17), 16 states have call successors, (17) [2021-11-23 02:33:06,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 106 transitions. [2021-11-23 02:33:06,887 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 106 transitions. Word has length 25 [2021-11-23 02:33:06,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:33:06,888 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 106 transitions. [2021-11-23 02:33:06,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 02:33:06,888 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 106 transitions. [2021-11-23 02:33:06,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-23 02:33:06,892 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:33:06,892 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:33:06,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:33:06,894 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:33:06,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:33:06,895 INFO L85 PathProgramCache]: Analyzing trace with hash 722447537, now seen corresponding path program 1 times [2021-11-23 02:33:06,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:33:06,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184002737] [2021-11-23 02:33:06,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:33:06,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:33:06,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:33:07,016 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 02:33:07,016 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:33:07,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184002737] [2021-11-23 02:33:07,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184002737] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:33:07,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:33:07,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 02:33:07,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783317773] [2021-11-23 02:33:07,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:33:07,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:33:07,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:33:07,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:33:07,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:33:07,022 INFO L87 Difference]: Start difference. First operand 83 states and 106 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:33:07,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:33:07,141 INFO L93 Difference]: Finished difference Result 151 states and 197 transitions. [2021-11-23 02:33:07,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:33:07,142 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2021-11-23 02:33:07,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:33:07,142 INFO L225 Difference]: With dead ends: 151 [2021-11-23 02:33:07,142 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 02:33:07,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-23 02:33:07,172 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 25 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:33:07,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 110 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:33:07,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 02:33:07,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 02:33:07,175 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 02:33:07,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 02:33:07,175 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2021-11-23 02:33:07,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:33:07,176 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 02:33:07,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:33:07,176 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 02:33:07,176 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 02:33:07,178 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 02:33:07,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:33:07,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 02:33:07,483 INFO L861 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 619 626) the Hoare annotation is: true [2021-11-23 02:33:07,484 INFO L858 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 619 626) no Hoare annotation was computed. [2021-11-23 02:33:07,484 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 828 839) the Hoare annotation is: true [2021-11-23 02:33:07,484 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 828 839) no Hoare annotation was computed. [2021-11-23 02:33:07,484 INFO L858 garLoopResultBuilder]: For program point L923(lines 923 929) no Hoare annotation was computed. [2021-11-23 02:33:07,484 INFO L854 garLoopResultBuilder]: At program point L886(line 886) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-11-23 02:33:07,486 INFO L854 garLoopResultBuilder]: At program point L548-1(lines 548 554) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2021-11-23 02:33:07,486 INFO L858 garLoopResultBuilder]: For program point L577(lines 577 585) no Hoare annotation was computed. [2021-11-23 02:33:07,486 INFO L858 garLoopResultBuilder]: For program point L573(lines 573 590) no Hoare annotation was computed. [2021-11-23 02:33:07,486 INFO L854 garLoopResultBuilder]: At program point L920(line 920) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2021-11-23 02:33:07,486 INFO L858 garLoopResultBuilder]: For program point L920-1(line 920) no Hoare annotation was computed. [2021-11-23 02:33:07,486 INFO L858 garLoopResultBuilder]: For program point L541-2(lines 537 559) no Hoare annotation was computed. [2021-11-23 02:33:07,487 INFO L854 garLoopResultBuilder]: At program point L905(line 905) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2021-11-23 02:33:07,487 INFO L854 garLoopResultBuilder]: At program point L905-1(line 905) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2021-11-23 02:33:07,488 INFO L854 garLoopResultBuilder]: At program point L583(line 583) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-11-23 02:33:07,493 INFO L854 garLoopResultBuilder]: At program point L579(line 579) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-11-23 02:33:07,493 INFO L854 garLoopResultBuilder]: At program point L575(line 575) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-11-23 02:33:07,493 INFO L858 garLoopResultBuilder]: For program point L575-1(line 575) no Hoare annotation was computed. [2021-11-23 02:33:07,493 INFO L858 garLoopResultBuilder]: For program point L922(lines 922 932) no Hoare annotation was computed. [2021-11-23 02:33:07,493 INFO L858 garLoopResultBuilder]: For program point L918(lines 918 935) no Hoare annotation was computed. [2021-11-23 02:33:07,493 INFO L854 garLoopResultBuilder]: At program point L918-1(lines 910 938) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2021-11-23 02:33:07,494 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 534 560) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2021-11-23 02:33:07,494 INFO L854 garLoopResultBuilder]: At program point L588(line 588) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (not (= 0 ~systemActive~0)))) [2021-11-23 02:33:07,494 INFO L854 garLoopResultBuilder]: At program point L588-1(lines 569 593) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (not (= 0 ~systemActive~0)))) [2021-11-23 02:33:07,494 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 534 560) no Hoare annotation was computed. [2021-11-23 02:33:07,498 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 886) no Hoare annotation was computed. [2021-11-23 02:33:07,498 INFO L861 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: true [2021-11-23 02:33:07,498 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 52 81) no Hoare annotation was computed. [2021-11-23 02:33:07,499 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 52 81) the Hoare annotation is: true [2021-11-23 02:33:07,499 INFO L861 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: true [2021-11-23 02:33:07,499 INFO L861 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2021-11-23 02:33:07,499 INFO L858 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2021-11-23 02:33:07,499 INFO L861 garLoopResultBuilder]: At program point L77(lines 52 81) the Hoare annotation is: true [2021-11-23 02:33:07,499 INFO L858 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-11-23 02:33:07,499 INFO L858 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2021-11-23 02:33:07,500 INFO L858 garLoopResultBuilder]: For program point L729(lines 729 735) no Hoare annotation was computed. [2021-11-23 02:33:07,500 INFO L858 garLoopResultBuilder]: For program point L729-1(lines 729 735) no Hoare annotation was computed. [2021-11-23 02:33:07,500 INFO L854 garLoopResultBuilder]: At program point L754(lines 709 756) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-11-23 02:33:07,500 INFO L854 garLoopResultBuilder]: At program point L721(line 721) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-11-23 02:33:07,500 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-11-23 02:33:07,500 INFO L854 garLoopResultBuilder]: At program point L689(line 689) the Hoare annotation is: false [2021-11-23 02:33:07,500 INFO L858 garLoopResultBuilder]: For program point L710(lines 709 756) no Hoare annotation was computed. [2021-11-23 02:33:07,501 INFO L858 garLoopResultBuilder]: For program point L739(lines 739 752) no Hoare annotation was computed. [2021-11-23 02:33:07,501 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 02:33:07,501 INFO L854 garLoopResultBuilder]: At program point L731(line 731) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-11-23 02:33:07,501 INFO L861 garLoopResultBuilder]: At program point L760(lines 699 764) the Hoare annotation is: true [2021-11-23 02:33:07,501 INFO L858 garLoopResultBuilder]: For program point L719(lines 719 725) no Hoare annotation was computed. [2021-11-23 02:33:07,501 INFO L858 garLoopResultBuilder]: For program point L719-1(lines 719 725) no Hoare annotation was computed. [2021-11-23 02:33:07,501 INFO L854 garLoopResultBuilder]: At program point L757(lines 708 758) the Hoare annotation is: false [2021-11-23 02:33:07,501 INFO L858 garLoopResultBuilder]: For program point L687(lines 687 693) no Hoare annotation was computed. [2021-11-23 02:33:07,502 INFO L854 garLoopResultBuilder]: At program point L142(lines 142 149) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0) (= ~pumpRunning~0 0) (not (= 0 ~systemActive~0))) [2021-11-23 02:33:07,502 INFO L854 garLoopResultBuilder]: At program point L687-1(lines 687 693) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-11-23 02:33:07,502 INFO L861 garLoopResultBuilder]: At program point L142-2(lines 142 149) the Hoare annotation is: true [2021-11-23 02:33:07,502 INFO L858 garLoopResultBuilder]: For program point L745(lines 745 751) no Hoare annotation was computed. [2021-11-23 02:33:07,502 INFO L854 garLoopResultBuilder]: At program point L745-2(lines 739 752) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-11-23 02:33:07,502 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 816 827) no Hoare annotation was computed. [2021-11-23 02:33:07,503 INFO L861 garLoopResultBuilder]: At program point waterRiseENTRY(lines 816 827) the Hoare annotation is: true [2021-11-23 02:33:07,503 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 561 567) no Hoare annotation was computed. [2021-11-23 02:33:07,503 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryFINAL(lines 561 567) the Hoare annotation is: true [2021-11-23 02:33:07,503 INFO L858 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 638 646) no Hoare annotation was computed. [2021-11-23 02:33:07,503 INFO L861 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 638 646) the Hoare annotation is: true [2021-11-23 02:33:07,503 INFO L861 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 627 637) the Hoare annotation is: true [2021-11-23 02:33:07,503 INFO L858 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 627 637) no Hoare annotation was computed. [2021-11-23 02:33:07,506 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-23 02:33:07,508 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 02:33:07,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:33:07 BoogieIcfgContainer [2021-11-23 02:33:07,533 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 02:33:07,533 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 02:33:07,533 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 02:33:07,534 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 02:33:07,534 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:33:05" (3/4) ... [2021-11-23 02:33:07,537 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 02:33:07,542 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2021-11-23 02:33:07,542 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-11-23 02:33:07,542 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-11-23 02:33:07,542 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-11-23 02:33:07,543 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-11-23 02:33:07,543 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2021-11-23 02:33:07,543 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2021-11-23 02:33:07,543 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2021-11-23 02:33:07,550 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 69 nodes and edges [2021-11-23 02:33:07,551 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2021-11-23 02:33:07,552 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-11-23 02:33:07,552 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-23 02:33:07,553 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 02:33:07,553 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 02:33:07,553 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 02:33:07,577 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || pumpRunning == 0 [2021-11-23 02:33:07,578 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || pumpRunning == 0 [2021-11-23 02:33:07,578 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || pumpRunning == 0 [2021-11-23 02:33:07,579 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2021-11-23 02:33:07,579 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || (pumpRunning == 0 && !(0 == systemActive)) [2021-11-23 02:33:07,605 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4ca1e1-5fb1-4192-a98a-baa9f1967610/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 02:33:07,605 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 02:33:07,606 INFO L158 Benchmark]: Toolchain (without parser) took 3111.57ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 60.9MB in the beginning and 77.3MB in the end (delta: -16.4MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2021-11-23 02:33:07,606 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 102.8MB. Free memory is still 78.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:33:07,606 INFO L158 Benchmark]: CACSL2BoogieTranslator took 544.66ms. Allocated memory is still 102.8MB. Free memory was 60.8MB in the beginning and 69.4MB in the end (delta: -8.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 02:33:07,607 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.84ms. Allocated memory is still 102.8MB. Free memory was 69.4MB in the beginning and 67.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 02:33:07,607 INFO L158 Benchmark]: Boogie Preprocessor took 30.07ms. Allocated memory is still 102.8MB. Free memory was 67.2MB in the beginning and 65.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 02:33:07,608 INFO L158 Benchmark]: RCFGBuilder took 585.69ms. Allocated memory is still 102.8MB. Free memory was 65.6MB in the beginning and 46.4MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-23 02:33:07,608 INFO L158 Benchmark]: TraceAbstraction took 1820.95ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 45.6MB in the beginning and 82.8MB in the end (delta: -37.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:33:07,608 INFO L158 Benchmark]: Witness Printer took 71.71ms. Allocated memory is still 123.7MB. Free memory was 82.8MB in the beginning and 77.3MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 02:33:07,611 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 102.8MB. Free memory is still 78.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 544.66ms. Allocated memory is still 102.8MB. Free memory was 60.8MB in the beginning and 69.4MB in the end (delta: -8.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.84ms. Allocated memory is still 102.8MB. Free memory was 69.4MB in the beginning and 67.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.07ms. Allocated memory is still 102.8MB. Free memory was 67.2MB in the beginning and 65.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 585.69ms. Allocated memory is still 102.8MB. Free memory was 65.6MB in the beginning and 46.4MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1820.95ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 45.6MB in the beginning and 82.8MB in the end (delta: -37.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 71.71ms. Allocated memory is still 123.7MB. Free memory was 82.8MB in the beginning and 77.3MB 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: 886]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 119 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 114 mSDsluCounter, 417 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 256 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 170 IncrementalHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 213 mSDtfsCounter, 170 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=83occurred in iteration=3, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 17 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 34 LocationsWithAnnotation, 188 PreInvPairs, 214 NumberOfFragments, 152 HoareAnnotationTreeSize, 188 FomulaSimplifications, 65 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 34 FomulaSimplificationsInter, 370 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 178 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 8/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 886]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 709]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 699]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 708]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 569]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || (pumpRunning == 0 && !(0 == systemActive)) - InvariantResult [Line: 627]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 910]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || pumpRunning == 0 - InvariantResult [Line: 142]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 142]: Loop Invariant Derived loop invariant: (tmp == systemActive && pumpRunning == 0) && !(0 == systemActive) - InvariantResult [Line: 548]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || pumpRunning == 0 - InvariantResult [Line: 905]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || pumpRunning == 0 - InvariantResult [Line: 687]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 RESULT: Ultimate proved your program to be correct! [2021-11-23 02:33:07,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4ca1e1-5fb1-4192-a98a-baa9f1967610/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