./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product28.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_1ca7ca37-74be-4070-bd97-7662121630f4/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ca7ca37-74be-4070-bd97-7662121630f4/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_1ca7ca37-74be-4070-bd97-7662121630f4/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ca7ca37-74be-4070-bd97-7662121630f4/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product28.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ca7ca37-74be-4070-bd97-7662121630f4/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_1ca7ca37-74be-4070-bd97-7662121630f4/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 9f236da57fa92653d636674a80852c8106739bc443cbd0a5f898a694ed49c247 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:58:52,154 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:58:52,156 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:58:52,197 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:58:52,198 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:58:52,202 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:58:52,204 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:58:52,209 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:58:52,212 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:58:52,218 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:58:52,219 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:58:52,221 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:58:52,221 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:58:52,224 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:58:52,227 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:58:52,232 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:58:52,234 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:58:52,235 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:58:52,237 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:58:52,247 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:58:52,250 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:58:52,251 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:58:52,255 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:58:52,256 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:58:52,267 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:58:52,267 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:58:52,268 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:58:52,270 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:58:52,271 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:58:52,272 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:58:52,273 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:58:52,274 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:58:52,276 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:58:52,277 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:58:52,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:58:52,279 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:58:52,280 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:58:52,281 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:58:52,281 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:58:52,282 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:58:52,283 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:58:52,284 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ca7ca37-74be-4070-bd97-7662121630f4/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 01:58:52,332 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:58:52,335 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:58:52,335 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 01:58:52,336 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 01:58:52,337 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:58:52,344 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 01:58:52,344 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 01:58:52,344 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 01:58:52,344 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 01:58:52,345 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 01:58:52,346 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 01:58:52,346 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 01:58:52,346 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 01:58:52,347 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 01:58:52,347 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 01:58:52,347 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 01:58:52,347 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 01:58:52,348 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 01:58:52,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:58:52,349 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:58:52,349 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:58:52,349 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:58:52,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:58:52,350 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:58:52,350 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:58:52,350 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:58:52,352 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:58:52,352 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:58:52,352 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:58:52,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:58:52,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:58:52,353 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 01:58:52,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 01:58:52,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:58:52,354 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:58:52,354 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:58:52,355 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 01:58:52,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:58:52,355 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:58:52,355 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 01:58:52,355 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 01:58:52,356 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_1ca7ca37-74be-4070-bd97-7662121630f4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ca7ca37-74be-4070-bd97-7662121630f4/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f236da57fa92653d636674a80852c8106739bc443cbd0a5f898a694ed49c247 [2021-11-23 01:58:52,674 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:58:52,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:58:52,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:58:52,702 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:58:52,703 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:58:52,704 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ca7ca37-74be-4070-bd97-7662121630f4/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/product-lines/minepump_spec2_product28.cil.c [2021-11-23 01:58:52,794 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ca7ca37-74be-4070-bd97-7662121630f4/bin/utaipan-EQgc7hIp5V/data/e54ddd0a6/d682414fc3bb441b9834ec855a66f392/FLAG69f48af5c [2021-11-23 01:58:53,377 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:58:53,377 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ca7ca37-74be-4070-bd97-7662121630f4/sv-benchmarks/c/product-lines/minepump_spec2_product28.cil.c [2021-11-23 01:58:53,398 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ca7ca37-74be-4070-bd97-7662121630f4/bin/utaipan-EQgc7hIp5V/data/e54ddd0a6/d682414fc3bb441b9834ec855a66f392/FLAG69f48af5c [2021-11-23 01:58:53,651 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ca7ca37-74be-4070-bd97-7662121630f4/bin/utaipan-EQgc7hIp5V/data/e54ddd0a6/d682414fc3bb441b9834ec855a66f392 [2021-11-23 01:58:53,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:58:53,667 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:58:53,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:58:53,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:58:53,675 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:58:53,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:58:53" (1/1) ... [2021-11-23 01:58:53,679 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a5e7ca4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:53, skipping insertion in model container [2021-11-23 01:58:53,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:58:53" (1/1) ... [2021-11-23 01:58:53,688 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:58:53,735 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:58:53,943 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_1ca7ca37-74be-4070-bd97-7662121630f4/sv-benchmarks/c/product-lines/minepump_spec2_product28.cil.c[2141,2154] [2021-11-23 01:58:54,056 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:58:54,067 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:58:54,084 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_1ca7ca37-74be-4070-bd97-7662121630f4/sv-benchmarks/c/product-lines/minepump_spec2_product28.cil.c[2141,2154] [2021-11-23 01:58:54,175 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:58:54,204 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:58:54,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:54 WrapperNode [2021-11-23 01:58:54,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:58:54,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:58:54,206 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:58:54,206 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:58:54,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:54" (1/1) ... [2021-11-23 01:58:54,233 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:54" (1/1) ... [2021-11-23 01:58:54,266 INFO L137 Inliner]: procedures = 56, calls = 155, calls flagged for inlining = 23, calls inlined = 18, statements flattened = 227 [2021-11-23 01:58:54,270 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:58:54,271 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:58:54,271 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:58:54,271 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:58:54,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:54" (1/1) ... [2021-11-23 01:58:54,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:54" (1/1) ... [2021-11-23 01:58:54,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:54" (1/1) ... [2021-11-23 01:58:54,296 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:54" (1/1) ... [2021-11-23 01:58:54,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:54" (1/1) ... [2021-11-23 01:58:54,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:54" (1/1) ... [2021-11-23 01:58:54,331 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:54" (1/1) ... [2021-11-23 01:58:54,334 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:58:54,335 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:58:54,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:58:54,335 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:58:54,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:54" (1/1) ... [2021-11-23 01:58:54,346 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 01:58:54,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ca7ca37-74be-4070-bd97-7662121630f4/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 01:58:54,381 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ca7ca37-74be-4070-bd97-7662121630f4/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 01:58:54,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ca7ca37-74be-4070-bd97-7662121630f4/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 01:58:54,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:58:54,435 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-11-23 01:58:54,435 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-11-23 01:58:54,435 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-23 01:58:54,435 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-23 01:58:54,436 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-23 01:58:54,436 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-23 01:58:54,436 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-11-23 01:58:54,436 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-11-23 01:58:54,437 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-23 01:58:54,437 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-23 01:58:54,437 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-11-23 01:58:54,437 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-11-23 01:58:54,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:58:54,438 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-23 01:58:54,438 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-23 01:58:54,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:58:54,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:58:54,518 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:58:54,520 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:58:54,916 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:58:54,973 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:58:54,973 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 01:58:54,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:58:54 BoogieIcfgContainer [2021-11-23 01:58:54,976 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:58:54,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 01:58:54,978 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 01:58:54,981 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 01:58:54,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:58:53" (1/3) ... [2021-11-23 01:58:54,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26fc3b93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:58:54, skipping insertion in model container [2021-11-23 01:58:54,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:54" (2/3) ... [2021-11-23 01:58:54,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26fc3b93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:58:54, skipping insertion in model container [2021-11-23 01:58:54,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:58:54" (3/3) ... [2021-11-23 01:58:54,985 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product28.cil.c [2021-11-23 01:58:54,990 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 01:58:54,991 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 01:58:55,040 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 01:58:55,047 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 01:58:55,047 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 01:58:55,066 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 37 states have (on average 1.4594594594594594) internal successors, (54), 44 states have internal predecessors, (54), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-23 01:58:55,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 01:58:55,073 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:58:55,073 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:58:55,074 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:58:55,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:58:55,080 INFO L85 PathProgramCache]: Analyzing trace with hash -714408765, now seen corresponding path program 1 times [2021-11-23 01:58:55,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:58:55,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236135778] [2021-11-23 01:58:55,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:58:55,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:58:55,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:58:55,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:58:55,269 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:58:55,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236135778] [2021-11-23 01:58:55,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236135778] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:58:55,270 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:58:55,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 01:58:55,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365762598] [2021-11-23 01:58:55,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:58:55,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 01:58:55,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:58:55,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 01:58:55,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 01:58:55,309 INFO L87 Difference]: Start difference. First operand has 57 states, 37 states have (on average 1.4594594594594594) internal successors, (54), 44 states have internal predecessors, (54), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 01:58:55,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:58:55,450 INFO L93 Difference]: Finished difference Result 112 states and 153 transitions. [2021-11-23 01:58:55,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 01:58:55,453 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-11-23 01:58:55,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:58:55,468 INFO L225 Difference]: With dead ends: 112 [2021-11-23 01:58:55,468 INFO L226 Difference]: Without dead ends: 52 [2021-11-23 01:58:55,475 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 01:58:55,481 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 01:58:55,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 01:58:55,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-11-23 01:58:55,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-11-23 01:58:55,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 40 states have internal predecessors, (46), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2021-11-23 01:58:55,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 67 transitions. [2021-11-23 01:58:55,555 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 67 transitions. Word has length 17 [2021-11-23 01:58:55,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:58:55,556 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 67 transitions. [2021-11-23 01:58:55,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 01:58:55,557 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 67 transitions. [2021-11-23 01:58:55,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 01:58:55,562 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:58:55,562 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:58:55,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 01:58:55,564 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:58:55,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:58:55,570 INFO L85 PathProgramCache]: Analyzing trace with hash 327774478, now seen corresponding path program 1 times [2021-11-23 01:58:55,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:58:55,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538435845] [2021-11-23 01:58:55,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:58:55,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:58:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:58:55,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:58:55,670 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:58:55,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538435845] [2021-11-23 01:58:55,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538435845] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:58:55,671 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:58:55,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 01:58:55,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435193673] [2021-11-23 01:58:55,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:58:55,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 01:58:55,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:58:55,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 01:58:55,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:58:55,675 INFO L87 Difference]: Start difference. First operand 52 states and 67 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 01:58:55,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:58:55,720 INFO L93 Difference]: Finished difference Result 76 states and 96 transitions. [2021-11-23 01:58:55,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 01:58:55,721 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2021-11-23 01:58:55,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:58:55,722 INFO L225 Difference]: With dead ends: 76 [2021-11-23 01:58:55,722 INFO L226 Difference]: Without dead ends: 44 [2021-11-23 01:58:55,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:58:55,725 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 14 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 01:58:55,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 70 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 01:58:55,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-11-23 01:58:55,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-11-23 01:58:55,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 35 states have internal predecessors, (40), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-23 01:58:55,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 56 transitions. [2021-11-23 01:58:55,735 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 56 transitions. Word has length 18 [2021-11-23 01:58:55,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:58:55,736 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 56 transitions. [2021-11-23 01:58:55,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 01:58:55,736 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions. [2021-11-23 01:58:55,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 01:58:55,737 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:58:55,737 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:58:55,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 01:58:55,738 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:58:55,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:58:55,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1546544402, now seen corresponding path program 1 times [2021-11-23 01:58:55,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:58:55,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190562372] [2021-11-23 01:58:55,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:58:55,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:58:55,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:58:55,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:58:55,808 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:58:55,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190562372] [2021-11-23 01:58:55,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190562372] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:58:55,809 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:58:55,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 01:58:55,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753403124] [2021-11-23 01:58:55,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:58:55,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 01:58:55,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:58:55,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 01:58:55,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:58:55,811 INFO L87 Difference]: Start difference. First operand 44 states and 56 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 01:58:55,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:58:55,914 INFO L93 Difference]: Finished difference Result 128 states and 165 transitions. [2021-11-23 01:58:55,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 01:58:55,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2021-11-23 01:58:55,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:58:55,920 INFO L225 Difference]: With dead ends: 128 [2021-11-23 01:58:55,920 INFO L226 Difference]: Without dead ends: 86 [2021-11-23 01:58:55,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:58:55,922 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 50 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 01:58:55,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 100 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 01:58:55,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-11-23 01:58:55,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 83. [2021-11-23 01:58:55,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 54 states have (on average 1.3888888888888888) internal successors, (75), 65 states have internal predecessors, (75), 16 states have call successors, (16), 12 states have call predecessors, (16), 12 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-23 01:58:55,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 107 transitions. [2021-11-23 01:58:55,962 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 107 transitions. Word has length 21 [2021-11-23 01:58:55,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:58:55,962 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 107 transitions. [2021-11-23 01:58:55,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 01:58:55,963 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 107 transitions. [2021-11-23 01:58:55,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 01:58:55,967 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:58:55,967 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:58:55,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 01:58:55,968 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:58:55,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:58:55,970 INFO L85 PathProgramCache]: Analyzing trace with hash 2061460140, now seen corresponding path program 1 times [2021-11-23 01:58:55,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:58:55,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834377786] [2021-11-23 01:58:55,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:58:55,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:58:56,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:58:56,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:58:56,125 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:58:56,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834377786] [2021-11-23 01:58:56,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834377786] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:58:56,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:58:56,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 01:58:56,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565810333] [2021-11-23 01:58:56,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:58:56,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 01:58:56,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:58:56,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 01:58:56,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 01:58:56,129 INFO L87 Difference]: Start difference. First operand 83 states and 107 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 01:58:56,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:58:56,327 INFO L93 Difference]: Finished difference Result 241 states and 314 transitions. [2021-11-23 01:58:56,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 01:58:56,328 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2021-11-23 01:58:56,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:58:56,339 INFO L225 Difference]: With dead ends: 241 [2021-11-23 01:58:56,339 INFO L226 Difference]: Without dead ends: 160 [2021-11-23 01:58:56,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-23 01:58:56,347 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 32 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 01:58:56,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 219 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 01:58:56,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-11-23 01:58:56,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 152. [2021-11-23 01:58:56,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 99 states have (on average 1.3636363636363635) internal successors, (135), 118 states have internal predecessors, (135), 30 states have call successors, (30), 22 states have call predecessors, (30), 22 states have return successors, (30), 20 states have call predecessors, (30), 30 states have call successors, (30) [2021-11-23 01:58:56,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 195 transitions. [2021-11-23 01:58:56,394 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 195 transitions. Word has length 24 [2021-11-23 01:58:56,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:58:56,395 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 195 transitions. [2021-11-23 01:58:56,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 01:58:56,395 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 195 transitions. [2021-11-23 01:58:56,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:58:56,402 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:58:56,402 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:58:56,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 01:58:56,403 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:58:56,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:58:56,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1037700753, now seen corresponding path program 1 times [2021-11-23 01:58:56,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:58:56,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827082931] [2021-11-23 01:58:56,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:58:56,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:58:56,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:58:56,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:58:56,473 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:58:56,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827082931] [2021-11-23 01:58:56,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827082931] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:58:56,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:58:56,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 01:58:56,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119682145] [2021-11-23 01:58:56,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:58:56,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 01:58:56,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:58:56,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 01:58:56,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:58:56,476 INFO L87 Difference]: Start difference. First operand 152 states and 195 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 01:58:56,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:58:56,528 INFO L93 Difference]: Finished difference Result 233 states and 304 transitions. [2021-11-23 01:58:56,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 01:58:56,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2021-11-23 01:58:56,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:58:56,531 INFO L225 Difference]: With dead ends: 233 [2021-11-23 01:58:56,531 INFO L226 Difference]: Without dead ends: 231 [2021-11-23 01:58:56,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:58:56,533 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 31 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 01:58:56,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 90 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 01:58:56,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-11-23 01:58:56,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2021-11-23 01:58:56,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 150 states have (on average 1.3666666666666667) internal successors, (205), 179 states have internal predecessors, (205), 46 states have call successors, (46), 34 states have call predecessors, (46), 34 states have return successors, (50), 31 states have call predecessors, (50), 46 states have call successors, (50) [2021-11-23 01:58:56,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 301 transitions. [2021-11-23 01:58:56,585 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 301 transitions. Word has length 27 [2021-11-23 01:58:56,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:58:56,585 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 301 transitions. [2021-11-23 01:58:56,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 01:58:56,586 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 301 transitions. [2021-11-23 01:58:56,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 01:58:56,588 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:58:56,588 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:58:56,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 01:58:56,589 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:58:56,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:58:56,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1360553446, now seen corresponding path program 1 times [2021-11-23 01:58:56,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:58:56,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553356248] [2021-11-23 01:58:56,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:58:56,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:58:56,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:58:56,758 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 01:58:56,758 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:58:56,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553356248] [2021-11-23 01:58:56,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553356248] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:58:56,758 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:58:56,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 01:58:56,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903144061] [2021-11-23 01:58:56,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:58:56,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 01:58:56,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:58:56,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 01:58:56,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-23 01:58:56,761 INFO L87 Difference]: Start difference. First operand 231 states and 301 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-23 01:58:56,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:58:56,872 INFO L93 Difference]: Finished difference Result 357 states and 463 transitions. [2021-11-23 01:58:56,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 01:58:56,873 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 48 [2021-11-23 01:58:56,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:58:56,874 INFO L225 Difference]: With dead ends: 357 [2021-11-23 01:58:56,874 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 01:58:56,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-23 01:58:56,876 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 35 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 01:58:56,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 63 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 01:58:56,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 01:58:56,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 01:58:56,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 01:58:56,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 01:58:56,878 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2021-11-23 01:58:56,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:58:56,879 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 01:58:56,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-23 01:58:56,879 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 01:58:56,879 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 01:58:56,882 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 01:58:56,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 01:58:56,885 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 01:58:57,439 INFO L861 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 287 294) the Hoare annotation is: true [2021-11-23 01:58:57,439 INFO L858 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 287 294) no Hoare annotation was computed. [2021-11-23 01:58:57,439 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 228 234) no Hoare annotation was computed. [2021-11-23 01:58:57,439 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 228 234) the Hoare annotation is: true [2021-11-23 01:58:57,439 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 130 141) the Hoare annotation is: true [2021-11-23 01:58:57,440 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 130 141) no Hoare annotation was computed. [2021-11-23 01:58:57,440 INFO L861 garLoopResultBuilder]: At program point L514-2(lines 514 528) the Hoare annotation is: true [2021-11-23 01:58:57,440 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 504 533) no Hoare annotation was computed. [2021-11-23 01:58:57,440 INFO L861 garLoopResultBuilder]: At program point L510(line 510) the Hoare annotation is: true [2021-11-23 01:58:57,440 INFO L858 garLoopResultBuilder]: For program point L510-1(line 510) no Hoare annotation was computed. [2021-11-23 01:58:57,440 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 504 533) the Hoare annotation is: true [2021-11-23 01:58:57,440 INFO L861 garLoopResultBuilder]: At program point L529(lines 504 533) the Hoare annotation is: true [2021-11-23 01:58:57,441 INFO L858 garLoopResultBuilder]: For program point L525(line 525) no Hoare annotation was computed. [2021-11-23 01:58:57,441 INFO L858 garLoopResultBuilder]: For program point L518(lines 518 522) no Hoare annotation was computed. [2021-11-23 01:58:57,441 INFO L861 garLoopResultBuilder]: At program point L518-1(lines 518 522) the Hoare annotation is: true [2021-11-23 01:58:57,441 INFO L854 garLoopResultBuilder]: At program point L481(lines 481 498) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0)))) (and (or .cse0 .cse1 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~4#1| 0) (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse1 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))))) [2021-11-23 01:58:57,441 INFO L854 garLoopResultBuilder]: At program point L481-1(lines 473 501) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0)))) (and (or .cse0 .cse1 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~4#1| 0) (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse1 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))))) [2021-11-23 01:58:57,441 INFO L854 garLoopResultBuilder]: At program point L250(line 250) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0))) [2021-11-23 01:58:57,442 INFO L854 garLoopResultBuilder]: At program point L246(line 246) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0))) [2021-11-23 01:58:57,442 INFO L858 garLoopResultBuilder]: For program point L486(lines 486 492) no Hoare annotation was computed. [2021-11-23 01:58:57,442 INFO L854 garLoopResultBuilder]: At program point L255(line 255) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2021-11-23 01:58:57,442 INFO L854 garLoopResultBuilder]: At program point L255-1(lines 236 260) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2021-11-23 01:58:57,442 INFO L854 garLoopResultBuilder]: At program point L479(line 479) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2021-11-23 01:58:57,442 INFO L858 garLoopResultBuilder]: For program point L479-1(line 479) no Hoare annotation was computed. [2021-11-23 01:58:57,443 INFO L858 garLoopResultBuilder]: For program point L215-1(lines 215 221) no Hoare annotation was computed. [2021-11-23 01:58:57,443 INFO L858 garLoopResultBuilder]: For program point L244(lines 244 252) no Hoare annotation was computed. [2021-11-23 01:58:57,443 INFO L854 garLoopResultBuilder]: At program point L240(lines 240 257) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2021-11-23 01:58:57,443 INFO L854 garLoopResultBuilder]: At program point L92(line 92) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0))) [2021-11-23 01:58:57,443 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 204 227) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2021-11-23 01:58:57,443 INFO L858 garLoopResultBuilder]: For program point L208-1(lines 207 226) no Hoare annotation was computed. [2021-11-23 01:58:57,443 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 204 227) no Hoare annotation was computed. [2021-11-23 01:58:57,444 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 92) no Hoare annotation was computed. [2021-11-23 01:58:57,444 INFO L858 garLoopResultBuilder]: For program point L485(lines 485 495) no Hoare annotation was computed. [2021-11-23 01:58:57,444 INFO L861 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 142 150) the Hoare annotation is: true [2021-11-23 01:58:57,444 INFO L858 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 142 150) no Hoare annotation was computed. [2021-11-23 01:58:57,444 INFO L858 garLoopResultBuilder]: For program point L415(lines 415 421) no Hoare annotation was computed. [2021-11-23 01:58:57,444 INFO L858 garLoopResultBuilder]: For program point L415-1(lines 415 421) no Hoare annotation was computed. [2021-11-23 01:58:57,444 INFO L858 garLoopResultBuilder]: For program point L374(lines 374 380) no Hoare annotation was computed. [2021-11-23 01:58:57,445 INFO L854 garLoopResultBuilder]: At program point L374-1(lines 374 380) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-11-23 01:58:57,445 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-11-23 01:58:57,445 INFO L854 garLoopResultBuilder]: At program point L586(lines 586 593) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2021-11-23 01:58:57,445 INFO L861 garLoopResultBuilder]: At program point L458(lines 395 462) the Hoare annotation is: true [2021-11-23 01:58:57,445 INFO L858 garLoopResultBuilder]: For program point L425(lines 425 431) no Hoare annotation was computed. [2021-11-23 01:58:57,445 INFO L858 garLoopResultBuilder]: For program point L425-1(lines 425 431) no Hoare annotation was computed. [2021-11-23 01:58:57,445 INFO L861 garLoopResultBuilder]: At program point L586-2(lines 586 593) the Hoare annotation is: true [2021-11-23 01:58:57,446 INFO L854 garLoopResultBuilder]: At program point L417(line 417) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-11-23 01:58:57,446 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 01:58:57,446 INFO L854 garLoopResultBuilder]: At program point L376(line 376) the Hoare annotation is: false [2021-11-23 01:58:57,446 INFO L854 garLoopResultBuilder]: At program point L455(lines 404 456) the Hoare annotation is: false [2021-11-23 01:58:57,446 INFO L858 garLoopResultBuilder]: For program point L443(lines 443 449) no Hoare annotation was computed. [2021-11-23 01:58:57,446 INFO L854 garLoopResultBuilder]: At program point L443-2(lines 435 450) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-11-23 01:58:57,447 INFO L858 garLoopResultBuilder]: For program point L406(lines 405 454) no Hoare annotation was computed. [2021-11-23 01:58:57,447 INFO L854 garLoopResultBuilder]: At program point L435(lines 435 450) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-11-23 01:58:57,447 INFO L854 garLoopResultBuilder]: At program point L427(line 427) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-11-23 01:58:57,447 INFO L854 garLoopResultBuilder]: At program point L452(lines 405 454) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-11-23 01:58:57,447 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 118 129) no Hoare annotation was computed. [2021-11-23 01:58:57,447 INFO L861 garLoopResultBuilder]: At program point waterRiseENTRY(lines 118 129) the Hoare annotation is: true [2021-11-23 01:58:57,451 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-23 01:58:57,452 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 01:58:57,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:58:57 BoogieIcfgContainer [2021-11-23 01:58:57,471 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 01:58:57,472 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:58:57,472 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:58:57,472 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:58:57,472 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:58:54" (3/4) ... [2021-11-23 01:58:57,478 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 01:58:57,483 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2021-11-23 01:58:57,485 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-11-23 01:58:57,487 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-11-23 01:58:57,487 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-11-23 01:58:57,487 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-11-23 01:58:57,487 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2021-11-23 01:58:57,488 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-11-23 01:58:57,498 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 69 nodes and edges [2021-11-23 01:58:57,501 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2021-11-23 01:58:57,502 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-11-23 01:58:57,503 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-23 01:58:57,503 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 01:58:57,504 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 01:58:57,504 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 01:58:57,529 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0) [2021-11-23 01:58:57,531 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0) [2021-11-23 01:58:57,532 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0) [2021-11-23 01:58:57,533 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || tmp == 0) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) [2021-11-23 01:58:57,533 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || tmp == 0) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) [2021-11-23 01:58:57,534 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0) [2021-11-23 01:58:57,577 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ca7ca37-74be-4070-bd97-7662121630f4/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 01:58:57,577 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:58:57,578 INFO L158 Benchmark]: Toolchain (without parser) took 3910.14ms. Allocated memory was 111.1MB in the beginning and 138.4MB in the end (delta: 27.3MB). Free memory was 74.1MB in the beginning and 57.7MB in the end (delta: 16.3MB). Peak memory consumption was 41.5MB. Max. memory is 16.1GB. [2021-11-23 01:58:57,578 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 111.1MB. Free memory was 84.3MB in the beginning and 84.2MB in the end (delta: 28.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:58:57,578 INFO L158 Benchmark]: CACSL2BoogieTranslator took 535.61ms. Allocated memory is still 111.1MB. Free memory was 73.7MB in the beginning and 76.9MB in the end (delta: -3.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 01:58:57,579 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.23ms. Allocated memory is still 111.1MB. Free memory was 76.9MB in the beginning and 74.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:58:57,579 INFO L158 Benchmark]: Boogie Preprocessor took 63.51ms. Allocated memory is still 111.1MB. Free memory was 74.7MB in the beginning and 72.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:58:57,579 INFO L158 Benchmark]: RCFGBuilder took 641.06ms. Allocated memory is still 111.1MB. Free memory was 72.7MB in the beginning and 53.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-23 01:58:57,580 INFO L158 Benchmark]: TraceAbstraction took 2493.50ms. Allocated memory was 111.1MB in the beginning and 138.4MB in the end (delta: 27.3MB). Free memory was 53.3MB in the beginning and 63.0MB in the end (delta: -9.7MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2021-11-23 01:58:57,583 INFO L158 Benchmark]: Witness Printer took 105.40ms. Allocated memory is still 138.4MB. Free memory was 63.0MB in the beginning and 57.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 01:58:57,586 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 111.1MB. Free memory was 84.3MB in the beginning and 84.2MB in the end (delta: 28.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 535.61ms. Allocated memory is still 111.1MB. Free memory was 73.7MB in the beginning and 76.9MB in the end (delta: -3.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.23ms. Allocated memory is still 111.1MB. Free memory was 76.9MB in the beginning and 74.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.51ms. Allocated memory is still 111.1MB. Free memory was 74.7MB in the beginning and 72.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 641.06ms. Allocated memory is still 111.1MB. Free memory was 72.7MB in the beginning and 53.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2493.50ms. Allocated memory was 111.1MB in the beginning and 138.4MB in the end (delta: 27.3MB). Free memory was 53.3MB in the beginning and 63.0MB in the end (delta: -9.7MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * Witness Printer took 105.40ms. Allocated memory is still 138.4MB. Free memory was 63.0MB in the beginning and 57.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 92]: 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 8 procedures, 57 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 169 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 162 mSDsluCounter, 599 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 405 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 266 IncrementalHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 280 mSDtfsCounter, 266 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=231occurred in iteration=5, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 32 LocationsWithAnnotation, 288 PreInvPairs, 329 NumberOfFragments, 261 HoareAnnotationTreeSize, 288 FomulaSimplifications, 48 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 32 FomulaSimplificationsInter, 1351 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 155 NumberOfCodeBlocks, 155 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 149 ConstructedInterpolants, 0 QuantifiedInterpolants, 297 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 19/19 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: 236]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0) - InvariantResult [Line: 473]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || tmp == 0) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) - InvariantResult [Line: 404]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 481]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || tmp == 0) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) - InvariantResult [Line: 395]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 204]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0) - InvariantResult [Line: 504]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 405]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methAndRunningLastTime == 0) && splverifierCounter == 0 - InvariantResult [Line: 240]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0) - InvariantResult [Line: 435]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methAndRunningLastTime == 0) && splverifierCounter == 0 - InvariantResult [Line: 514]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 92]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0) - InvariantResult [Line: 374]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methAndRunningLastTime == 0) && splverifierCounter == 0 - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive RESULT: Ultimate proved your program to be correct! [2021-11-23 01:58:57,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ca7ca37-74be-4070-bd97-7662121630f4/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