./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product03.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09abd251-8f2c-4e9d-9a78-69fadc7b4522/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09abd251-8f2c-4e9d-9a78-69fadc7b4522/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09abd251-8f2c-4e9d-9a78-69fadc7b4522/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09abd251-8f2c-4e9d-9a78-69fadc7b4522/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product03.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09abd251-8f2c-4e9d-9a78-69fadc7b4522/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09abd251-8f2c-4e9d-9a78-69fadc7b4522/bin/uautomizer-DQz5hQGWxF --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 355b5902b5f931f50c54d9516b33231d0a6419b36d45cf753c504688535a3e74 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:27:52,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:27:52,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:27:52,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:27:52,322 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:27:52,326 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:27:52,328 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:27:52,332 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:27:52,335 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:27:52,343 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:27:52,344 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:27:52,346 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:27:52,346 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:27:52,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:27:52,351 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:27:52,356 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:27:52,358 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:27:52,359 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:27:52,362 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:27:52,371 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:27:52,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:27:52,375 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:27:52,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:27:52,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:27:52,388 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:27:52,388 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:27:52,389 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:27:52,391 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:27:52,392 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:27:52,393 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:27:52,393 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:27:52,394 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:27:52,396 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:27:52,397 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:27:52,399 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:27:52,399 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:27:52,400 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:27:52,400 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:27:52,400 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:27:52,401 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:27:52,402 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:27:52,403 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09abd251-8f2c-4e9d-9a78-69fadc7b4522/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 07:27:52,443 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:27:52,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:27:52,444 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:27:52,445 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:27:52,446 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:27:52,446 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:27:52,447 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:27:52,447 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:27:52,448 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:27:52,448 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:27:52,449 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:27:52,449 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:27:52,449 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:27:52,450 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:27:52,450 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:27:52,450 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:27:52,450 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:27:52,450 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:27:52,451 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:27:52,451 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:27:52,451 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:27:52,451 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:27:52,452 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:27:52,452 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:27:52,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:27:52,452 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:27:52,453 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:27:52,453 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:27:52,453 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:27:52,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 07:27:52,455 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 07:27:52,455 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 07:27:52,455 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:27:52,456 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:27:52,456 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09abd251-8f2c-4e9d-9a78-69fadc7b4522/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09abd251-8f2c-4e9d-9a78-69fadc7b4522/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 355b5902b5f931f50c54d9516b33231d0a6419b36d45cf753c504688535a3e74 [2021-11-20 07:27:52,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:27:52,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:27:52,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:27:52,751 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:27:52,751 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:27:52,753 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09abd251-8f2c-4e9d-9a78-69fadc7b4522/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/product-lines/minepump_spec4_product03.cil.c [2021-11-20 07:27:52,822 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09abd251-8f2c-4e9d-9a78-69fadc7b4522/bin/uautomizer-DQz5hQGWxF/data/5c1b5a41e/d29dc016b6fc4947869001eec0597a71/FLAG413918e61 [2021-11-20 07:27:53,434 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:27:53,435 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09abd251-8f2c-4e9d-9a78-69fadc7b4522/sv-benchmarks/c/product-lines/minepump_spec4_product03.cil.c [2021-11-20 07:27:53,455 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09abd251-8f2c-4e9d-9a78-69fadc7b4522/bin/uautomizer-DQz5hQGWxF/data/5c1b5a41e/d29dc016b6fc4947869001eec0597a71/FLAG413918e61 [2021-11-20 07:27:53,705 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09abd251-8f2c-4e9d-9a78-69fadc7b4522/bin/uautomizer-DQz5hQGWxF/data/5c1b5a41e/d29dc016b6fc4947869001eec0597a71 [2021-11-20 07:27:53,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:27:53,710 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:27:53,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:27:53,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:27:53,716 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:27:53,717 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:27:53" (1/1) ... [2021-11-20 07:27:53,720 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a3d7369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:27:53, skipping insertion in model container [2021-11-20 07:27:53,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:27:53" (1/1) ... [2021-11-20 07:27:53,728 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:27:53,789 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:27:53,988 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_09abd251-8f2c-4e9d-9a78-69fadc7b4522/sv-benchmarks/c/product-lines/minepump_spec4_product03.cil.c[1605,1618] [2021-11-20 07:27:54,138 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:27:54,147 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:27:54,160 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_09abd251-8f2c-4e9d-9a78-69fadc7b4522/sv-benchmarks/c/product-lines/minepump_spec4_product03.cil.c[1605,1618] [2021-11-20 07:27:54,235 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:27:54,257 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:27:54,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:27:54 WrapperNode [2021-11-20 07:27:54,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:27:54,259 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:27:54,259 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:27:54,259 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:27:54,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:27:54" (1/1) ... [2021-11-20 07:27:54,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:27:54" (1/1) ... [2021-11-20 07:27:54,344 INFO L137 Inliner]: procedures = 50, calls = 146, calls flagged for inlining = 20, calls inlined = 16, statements flattened = 193 [2021-11-20 07:27:54,344 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:27:54,345 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:27:54,346 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:27:54,346 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:27:54,354 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:27:54" (1/1) ... [2021-11-20 07:27:54,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:27:54" (1/1) ... [2021-11-20 07:27:54,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:27:54" (1/1) ... [2021-11-20 07:27:54,369 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:27:54" (1/1) ... [2021-11-20 07:27:54,374 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:27:54" (1/1) ... [2021-11-20 07:27:54,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:27:54" (1/1) ... [2021-11-20 07:27:54,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:27:54" (1/1) ... [2021-11-20 07:27:54,398 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:27:54,399 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:27:54,399 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:27:54,399 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:27:54,400 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:27:54" (1/1) ... [2021-11-20 07:27:54,407 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:27:54,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09abd251-8f2c-4e9d-9a78-69fadc7b4522/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:27:54,431 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09abd251-8f2c-4e9d-9a78-69fadc7b4522/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:27:54,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09abd251-8f2c-4e9d-9a78-69fadc7b4522/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:27:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:27:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-20 07:27:54,476 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-20 07:27:54,476 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-20 07:27:54,476 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-20 07:27:54,476 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-20 07:27:54,476 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-20 07:27:54,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:27:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-20 07:27:54,477 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-20 07:27:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:27:54,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:27:54,577 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:27:54,578 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:27:54,851 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:27:54,858 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:27:54,858 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-20 07:27:54,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:27:54 BoogieIcfgContainer [2021-11-20 07:27:54,860 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:27:54,862 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:27:54,862 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:27:54,882 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:27:54,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:27:53" (1/3) ... [2021-11-20 07:27:54,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20d8c2f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:27:54, skipping insertion in model container [2021-11-20 07:27:54,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:27:54" (2/3) ... [2021-11-20 07:27:54,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20d8c2f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:27:54, skipping insertion in model container [2021-11-20 07:27:54,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:27:54" (3/3) ... [2021-11-20 07:27:54,885 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product03.cil.c [2021-11-20 07:27:54,889 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:27:54,890 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 07:27:54,953 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:27:54,960 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=PETRI_NET, 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 [2021-11-20 07:27:54,960 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 07:27:54,978 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 50 states have (on average 1.4) internal successors, (70), 54 states have internal predecessors, (70), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-20 07:27:54,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-20 07:27:54,984 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:27:54,985 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:27:54,986 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:27:54,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:27:54,991 INFO L85 PathProgramCache]: Analyzing trace with hash -192528358, now seen corresponding path program 1 times [2021-11-20 07:27:55,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:27:55,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179304369] [2021-11-20 07:27:55,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:27:55,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:27:55,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:55,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:27:55,187 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:27:55,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179304369] [2021-11-20 07:27:55,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179304369] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:27:55,188 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:27:55,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 07:27:55,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665614451] [2021-11-20 07:27:55,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:27:55,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 07:27:55,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:27:55,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 07:27:55,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 07:27:55,233 INFO L87 Difference]: Start difference. First operand has 62 states, 50 states have (on average 1.4) internal successors, (70), 54 states have internal predecessors, (70), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:27:55,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:27:55,275 INFO L93 Difference]: Finished difference Result 116 states and 159 transitions. [2021-11-20 07:27:55,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:27:55,277 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-20 07:27:55,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:27:55,285 INFO L225 Difference]: With dead ends: 116 [2021-11-20 07:27:55,285 INFO L226 Difference]: Without dead ends: 53 [2021-11-20 07:27:55,290 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 [2021-11-20 07:27:55,324 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:27:55,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:27:55,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-11-20 07:27:55,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-11-20 07:27:55,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 43 states have (on average 1.302325581395349) internal successors, (56), 46 states have internal predecessors, (56), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-20 07:27:55,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 67 transitions. [2021-11-20 07:27:55,400 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 67 transitions. Word has length 19 [2021-11-20 07:27:55,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:27:55,401 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 67 transitions. [2021-11-20 07:27:55,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:27:55,401 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 67 transitions. [2021-11-20 07:27:55,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-20 07:27:55,405 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:27:55,405 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] [2021-11-20 07:27:55,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 07:27:55,407 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:27:55,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:27:55,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1987482606, now seen corresponding path program 1 times [2021-11-20 07:27:55,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:27:55,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931336098] [2021-11-20 07:27:55,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:27:55,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:27:55,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:55,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:27:55,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:27:55,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931336098] [2021-11-20 07:27:55,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931336098] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:27:55,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:27:55,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:27:55,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920857783] [2021-11-20 07:27:55,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:27:55,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:27:55,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:27:55,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:27:55,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:27:55,553 INFO L87 Difference]: Start difference. First operand 53 states and 67 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:27:55,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:27:55,571 INFO L93 Difference]: Finished difference Result 68 states and 85 transitions. [2021-11-20 07:27:55,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:27:55,573 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-20 07:27:55,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:27:55,575 INFO L225 Difference]: With dead ends: 68 [2021-11-20 07:27:55,576 INFO L226 Difference]: Without dead ends: 44 [2021-11-20 07:27:55,584 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 [2021-11-20 07:27:55,586 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 17 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:27:55,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 87 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:27:55,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-11-20 07:27:55,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-11-20 07:27:55,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 40 states have internal predecessors, (49), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 07:27:55,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 55 transitions. [2021-11-20 07:27:55,604 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 55 transitions. Word has length 20 [2021-11-20 07:27:55,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:27:55,605 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 55 transitions. [2021-11-20 07:27:55,605 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:27:55,605 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 55 transitions. [2021-11-20 07:27:55,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 07:27:55,606 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:27:55,606 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] [2021-11-20 07:27:55,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 07:27:55,607 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:27:55,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:27:55,607 INFO L85 PathProgramCache]: Analyzing trace with hash -296029766, now seen corresponding path program 1 times [2021-11-20 07:27:55,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:27:55,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261922970] [2021-11-20 07:27:55,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:27:55,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:27:55,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:55,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:27:55,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:27:55,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261922970] [2021-11-20 07:27:55,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261922970] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:27:55,701 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:27:55,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 07:27:55,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738232024] [2021-11-20 07:27:55,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:27:55,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:27:55,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:27:55,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:27:55,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:27:55,705 INFO L87 Difference]: Start difference. First operand 44 states and 55 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:27:55,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:27:55,738 INFO L93 Difference]: Finished difference Result 117 states and 151 transitions. [2021-11-20 07:27:55,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:27:55,739 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-20 07:27:55,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:27:55,744 INFO L225 Difference]: With dead ends: 117 [2021-11-20 07:27:55,744 INFO L226 Difference]: Without dead ends: 80 [2021-11-20 07:27:55,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:27:55,749 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 35 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:27:55,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 102 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:27:55,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-11-20 07:27:55,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 75. [2021-11-20 07:27:55,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 62 states have (on average 1.3548387096774193) internal successors, (84), 67 states have internal predecessors, (84), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-20 07:27:55,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 96 transitions. [2021-11-20 07:27:55,781 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 96 transitions. Word has length 24 [2021-11-20 07:27:55,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:27:55,782 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 96 transitions. [2021-11-20 07:27:55,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:27:55,782 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 96 transitions. [2021-11-20 07:27:55,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-20 07:27:55,784 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:27:55,784 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] [2021-11-20 07:27:55,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 07:27:55,785 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:27:55,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:27:55,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1716566345, now seen corresponding path program 1 times [2021-11-20 07:27:55,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:27:55,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288550656] [2021-11-20 07:27:55,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:27:55,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:27:55,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:55,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:27:55,901 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:27:55,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288550656] [2021-11-20 07:27:55,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288550656] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:27:55,902 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:27:55,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:27:55,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937786869] [2021-11-20 07:27:55,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:27:55,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:27:55,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:27:55,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:27:55,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:27:55,907 INFO L87 Difference]: Start difference. First operand 75 states and 96 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:27:56,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:27:56,130 INFO L93 Difference]: Finished difference Result 243 states and 329 transitions. [2021-11-20 07:27:56,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:27:56,130 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-11-20 07:27:56,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:27:56,137 INFO L225 Difference]: With dead ends: 243 [2021-11-20 07:27:56,137 INFO L226 Difference]: Without dead ends: 175 [2021-11-20 07:27:56,141 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-20 07:27:56,146 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 112 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:27:56,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 284 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 07:27:56,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2021-11-20 07:27:56,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 133. [2021-11-20 07:27:56,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 110 states have (on average 1.3454545454545455) internal successors, (148), 119 states have internal predecessors, (148), 10 states have call successors, (10), 10 states have call predecessors, (10), 12 states have return successors, (14), 12 states have call predecessors, (14), 10 states have call successors, (14) [2021-11-20 07:27:56,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 172 transitions. [2021-11-20 07:27:56,173 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 172 transitions. Word has length 25 [2021-11-20 07:27:56,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:27:56,173 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 172 transitions. [2021-11-20 07:27:56,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:27:56,174 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 172 transitions. [2021-11-20 07:27:56,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-20 07:27:56,175 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:27:56,176 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] [2021-11-20 07:27:56,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 07:27:56,176 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:27:56,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:27:56,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1833945412, now seen corresponding path program 1 times [2021-11-20 07:27:56,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:27:56,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301457032] [2021-11-20 07:27:56,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:27:56,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:27:56,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:56,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:27:56,214 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:27:56,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301457032] [2021-11-20 07:27:56,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301457032] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:27:56,215 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:27:56,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 07:27:56,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371075628] [2021-11-20 07:27:56,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:27:56,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:27:56,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:27:56,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:27:56,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:27:56,217 INFO L87 Difference]: Start difference. First operand 133 states and 172 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:27:56,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:27:56,232 INFO L93 Difference]: Finished difference Result 249 states and 327 transitions. [2021-11-20 07:27:56,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:27:56,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-20 07:27:56,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:27:56,234 INFO L225 Difference]: With dead ends: 249 [2021-11-20 07:27:56,234 INFO L226 Difference]: Without dead ends: 123 [2021-11-20 07:27:56,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:27:56,236 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 33 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:27:56,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 46 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:27:56,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-11-20 07:27:56,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2021-11-20 07:27:56,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 100 states have (on average 1.28) internal successors, (128), 109 states have internal predecessors, (128), 10 states have call successors, (10), 10 states have call predecessors, (10), 12 states have return successors, (12), 12 states have call predecessors, (12), 10 states have call successors, (12) [2021-11-20 07:27:56,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 150 transitions. [2021-11-20 07:27:56,258 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 150 transitions. Word has length 27 [2021-11-20 07:27:56,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:27:56,260 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 150 transitions. [2021-11-20 07:27:56,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:27:56,260 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 150 transitions. [2021-11-20 07:27:56,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-20 07:27:56,265 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:27:56,266 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, 1, 1] [2021-11-20 07:27:56,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 07:27:56,266 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:27:56,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:27:56,269 INFO L85 PathProgramCache]: Analyzing trace with hash 957939555, now seen corresponding path program 1 times [2021-11-20 07:27:56,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:27:56,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355923546] [2021-11-20 07:27:56,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:27:56,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:27:56,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:56,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:27:56,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:56,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:27:56,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:27:56,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355923546] [2021-11-20 07:27:56,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355923546] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:27:56,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:27:56,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 07:27:56,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297819700] [2021-11-20 07:27:56,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:27:56,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 07:27:56,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:27:56,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 07:27:56,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-20 07:27:56,438 INFO L87 Difference]: Start difference. First operand 123 states and 150 transitions. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 6 states have internal predecessors, (26), 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) [2021-11-20 07:27:56,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:27:56,668 INFO L93 Difference]: Finished difference Result 355 states and 445 transitions. [2021-11-20 07:27:56,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:27:56,670 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 6 states have internal predecessors, (26), 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 29 [2021-11-20 07:27:56,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:27:56,676 INFO L225 Difference]: With dead ends: 355 [2021-11-20 07:27:56,677 INFO L226 Difference]: Without dead ends: 239 [2021-11-20 07:27:56,678 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2021-11-20 07:27:56,679 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 142 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:27:56,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 246 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 07:27:56,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2021-11-20 07:27:56,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 180. [2021-11-20 07:27:56,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 145 states have (on average 1.2689655172413794) internal successors, (184), 158 states have internal predecessors, (184), 16 states have call successors, (16), 16 states have call predecessors, (16), 18 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2021-11-20 07:27:56,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 218 transitions. [2021-11-20 07:27:56,726 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 218 transitions. Word has length 29 [2021-11-20 07:27:56,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:27:56,727 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 218 transitions. [2021-11-20 07:27:56,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 6 states have internal predecessors, (26), 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) [2021-11-20 07:27:56,727 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 218 transitions. [2021-11-20 07:27:56,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-20 07:27:56,735 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:27:56,735 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 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] [2021-11-20 07:27:56,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 07:27:56,736 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:27:56,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:27:56,738 INFO L85 PathProgramCache]: Analyzing trace with hash -426576330, now seen corresponding path program 1 times [2021-11-20 07:27:56,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:27:56,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048342595] [2021-11-20 07:27:56,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:27:56,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:27:56,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:56,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:27:56,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:56,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 07:27:56,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:56,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-20 07:27:56,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:56,871 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-20 07:27:56,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:27:56,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048342595] [2021-11-20 07:27:56,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048342595] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:27:56,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038799595] [2021-11-20 07:27:56,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:27:56,873 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:27:56,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09abd251-8f2c-4e9d-9a78-69fadc7b4522/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:27:56,875 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09abd251-8f2c-4e9d-9a78-69fadc7b4522/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:27:56,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09abd251-8f2c-4e9d-9a78-69fadc7b4522/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 07:27:56,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:56,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-20 07:27:56,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:27:57,247 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 07:27:57,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:27:57,614 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:27:57,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2038799595] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:27:57,615 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:27:57,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 14 [2021-11-20 07:27:57,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18692708] [2021-11-20 07:27:57,615 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:27:57,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:27:57,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:27:57,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:27:57,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:27:57,619 INFO L87 Difference]: Start difference. First operand 180 states and 218 transitions. Second operand has 14 states, 14 states have (on average 6.0) internal successors, (84), 12 states have internal predecessors, (84), 4 states have call successors, (10), 6 states have call predecessors, (10), 7 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-11-20 07:27:57,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:27:57,802 INFO L93 Difference]: Finished difference Result 237 states and 290 transitions. [2021-11-20 07:27:57,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:27:57,803 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 12 states have internal predecessors, (84), 4 states have call successors, (10), 6 states have call predecessors, (10), 7 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 51 [2021-11-20 07:27:57,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:27:57,805 INFO L225 Difference]: With dead ends: 237 [2021-11-20 07:27:57,806 INFO L226 Difference]: Without dead ends: 0 [2021-11-20 07:27:57,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2021-11-20 07:27:57,808 INFO L933 BasicCegarLoop]: 65 mSDtfsCounter, 129 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:27:57,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 372 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 07:27:57,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-20 07:27:57,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-20 07:27:57,810 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) [2021-11-20 07:27:57,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-20 07:27:57,810 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2021-11-20 07:27:57,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:27:57,811 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 07:27:57,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 12 states have internal predecessors, (84), 4 states have call successors, (10), 6 states have call predecessors, (10), 7 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-11-20 07:27:57,811 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-20 07:27:57,811 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-20 07:27:57,814 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 07:27:57,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09abd251-8f2c-4e9d-9a78-69fadc7b4522/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 07:27:58,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09abd251-8f2c-4e9d-9a78-69fadc7b4522/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-20 07:27:58,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-20 07:27:58,724 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 692 703) the Hoare annotation is: true [2021-11-20 07:27:58,724 INFO L858 garLoopResultBuilder]: For program point L696-1(lines 692 703) no Hoare annotation was computed. [2021-11-20 07:27:58,724 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 692 703) no Hoare annotation was computed. [2021-11-20 07:27:58,725 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 773 802) no Hoare annotation was computed. [2021-11-20 07:27:58,725 INFO L861 garLoopResultBuilder]: At program point L798(lines 773 802) the Hoare annotation is: true [2021-11-20 07:27:58,725 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 773 802) the Hoare annotation is: true [2021-11-20 07:27:58,725 INFO L858 garLoopResultBuilder]: For program point L794(line 794) no Hoare annotation was computed. [2021-11-20 07:27:58,725 INFO L858 garLoopResultBuilder]: For program point L787(lines 787 791) no Hoare annotation was computed. [2021-11-20 07:27:58,725 INFO L861 garLoopResultBuilder]: At program point L787-1(lines 787 791) the Hoare annotation is: true [2021-11-20 07:27:58,725 INFO L858 garLoopResultBuilder]: For program point L784(line 784) no Hoare annotation was computed. [2021-11-20 07:27:58,726 INFO L861 garLoopResultBuilder]: At program point L783-2(lines 783 797) the Hoare annotation is: true [2021-11-20 07:27:58,726 INFO L861 garLoopResultBuilder]: At program point L779(line 779) the Hoare annotation is: true [2021-11-20 07:27:58,726 INFO L858 garLoopResultBuilder]: For program point L779-1(line 779) no Hoare annotation was computed. [2021-11-20 07:27:58,726 INFO L854 garLoopResultBuilder]: At program point L609(lines 604 612) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (<= 1 |old(~waterLevel~0)|))) [2021-11-20 07:27:58,726 INFO L854 garLoopResultBuilder]: At program point L574(lines 570 576) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (= |old(~waterLevel~0)| ~waterLevel~0) (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)))) [2021-11-20 07:27:58,726 INFO L858 garLoopResultBuilder]: For program point L758(lines 758 764) no Hoare annotation was computed. [2021-11-20 07:27:58,726 INFO L858 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2021-11-20 07:27:58,727 INFO L858 garLoopResultBuilder]: For program point L754(lines 754 767) no Hoare annotation was computed. [2021-11-20 07:27:58,727 INFO L854 garLoopResultBuilder]: At program point L754-1(lines 746 770) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (not (= |timeShift___utac_acc__Specification4_spec__1_~tmp~4#1| 0))) (.cse2 (not (= |timeShift_getWaterLevel_#res#1| 0)))) (and (or .cse0 (and .cse1 .cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 .cse2 (= ~waterLevel~0 1))))) [2021-11-20 07:27:58,727 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 546 569) no Hoare annotation was computed. [2021-11-20 07:27:58,727 INFO L858 garLoopResultBuilder]: For program point L550-1(lines 549 568) no Hoare annotation was computed. [2021-11-20 07:27:58,727 INFO L858 garLoopResultBuilder]: For program point L672(lines 672 676) no Hoare annotation was computed. [2021-11-20 07:27:58,727 INFO L854 garLoopResultBuilder]: At program point L672-2(lines 668 679) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (<= 1 |old(~waterLevel~0)|))) [2021-11-20 07:27:58,728 INFO L854 garLoopResultBuilder]: At program point L55(lines 50 57) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (<= 1 |old(~waterLevel~0)|))) [2021-11-20 07:27:58,728 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 546 569) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (= |old(~waterLevel~0)| ~waterLevel~0) (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)))) [2021-11-20 07:27:58,728 INFO L858 garLoopResultBuilder]: For program point L557-1(lines 557 563) no Hoare annotation was computed. [2021-11-20 07:27:58,728 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 546 569) no Hoare annotation was computed. [2021-11-20 07:27:58,728 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2021-11-20 07:27:58,728 INFO L854 garLoopResultBuilder]: At program point L741(lines 736 744) the Hoare annotation is: (let ((.cse1 (not (= ~pumpRunning~0 0))) (.cse0 (not (= |timeShift_getWaterLevel_#res#1| 0)))) (and (or (and .cse0 (= ~waterLevel~0 1)) .cse1 (not (= |old(~waterLevel~0)| 1))) (or .cse1 (and .cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))))) [2021-11-20 07:27:58,729 INFO L854 garLoopResultBuilder]: At program point L514-2(lines 508 521) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~waterLevel~0 1)) (and .cse0 (<= 2 ~waterLevel~0) .cse1))) [2021-11-20 07:27:58,729 INFO L858 garLoopResultBuilder]: For program point L498(lines 498 504) no Hoare annotation was computed. [2021-11-20 07:27:58,729 INFO L858 garLoopResultBuilder]: For program point L498-1(lines 498 504) no Hoare annotation was computed. [2021-11-20 07:27:58,729 INFO L854 garLoopResultBuilder]: At program point L523(lines 478 525) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~waterLevel~0 1)) (and .cse0 (<= 2 ~waterLevel~0) .cse1))) [2021-11-20 07:27:58,729 INFO L854 garLoopResultBuilder]: At program point L490(line 490) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~waterLevel~0 1)) (and .cse0 (<= 2 ~waterLevel~0) .cse1))) [2021-11-20 07:27:58,729 INFO L861 garLoopResultBuilder]: At program point L841(lines 834 843) the Hoare annotation is: true [2021-11-20 07:27:58,729 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-20 07:27:58,730 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-20 07:27:58,730 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-20 07:27:58,730 INFO L858 garLoopResultBuilder]: For program point L854(lines 854 861) no Hoare annotation was computed. [2021-11-20 07:27:58,730 INFO L858 garLoopResultBuilder]: For program point L854-2(lines 854 861) no Hoare annotation was computed. [2021-11-20 07:27:58,730 INFO L854 garLoopResultBuilder]: At program point L590(lines 585 592) the Hoare annotation is: false [2021-11-20 07:27:58,730 INFO L854 garLoopResultBuilder]: At program point L458(lines 453 461) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (= ~waterLevel~0 ~systemActive~0)) [2021-11-20 07:27:58,730 INFO L854 garLoopResultBuilder]: At program point L450(lines 446 452) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (= ~waterLevel~0 ~systemActive~0)) [2021-11-20 07:27:58,731 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-20 07:27:58,731 INFO L858 garLoopResultBuilder]: For program point L479(lines 478 525) no Hoare annotation was computed. [2021-11-20 07:27:58,731 INFO L861 garLoopResultBuilder]: At program point L863(lines 844 866) the Hoare annotation is: true [2021-11-20 07:27:58,731 INFO L858 garLoopResultBuilder]: For program point L508(lines 508 521) no Hoare annotation was computed. [2021-11-20 07:27:58,731 INFO L854 garLoopResultBuilder]: At program point L661(lines 649 663) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~waterLevel~0 1)) (and .cse0 (<= 2 ~waterLevel~0) .cse1))) [2021-11-20 07:27:58,731 INFO L854 garLoopResultBuilder]: At program point L500(line 500) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~waterLevel~0 1)) (and .cse0 (<= 2 ~waterLevel~0) .cse1))) [2021-11-20 07:27:58,731 INFO L861 garLoopResultBuilder]: At program point L529(lines 468 533) the Hoare annotation is: true [2021-11-20 07:27:58,732 INFO L858 garLoopResultBuilder]: For program point L653(lines 653 659) no Hoare annotation was computed. [2021-11-20 07:27:58,732 INFO L858 garLoopResultBuilder]: For program point L653-2(lines 653 659) no Hoare annotation was computed. [2021-11-20 07:27:58,732 INFO L858 garLoopResultBuilder]: For program point L488(lines 488 494) no Hoare annotation was computed. [2021-11-20 07:27:58,732 INFO L858 garLoopResultBuilder]: For program point L488-1(lines 488 494) no Hoare annotation was computed. [2021-11-20 07:27:58,732 INFO L858 garLoopResultBuilder]: For program point L480(lines 480 484) no Hoare annotation was computed. [2021-11-20 07:27:58,732 INFO L854 garLoopResultBuilder]: At program point L831(lines 827 833) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (= ~waterLevel~0 ~systemActive~0)) [2021-11-20 07:27:58,732 INFO L854 garLoopResultBuilder]: At program point L443(lines 439 445) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (= ~waterLevel~0 ~systemActive~0)) [2021-11-20 07:27:58,732 INFO L854 garLoopResultBuilder]: At program point L526(lines 477 527) the Hoare annotation is: false [2021-11-20 07:27:58,733 INFO L858 garLoopResultBuilder]: For program point L514(lines 514 520) no Hoare annotation was computed. [2021-11-20 07:27:58,733 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 680 691) no Hoare annotation was computed. [2021-11-20 07:27:58,733 INFO L858 garLoopResultBuilder]: For program point L684-1(lines 680 691) no Hoare annotation was computed. [2021-11-20 07:27:58,733 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 680 691) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (= |old(~waterLevel~0)| ~waterLevel~0) (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)))) [2021-11-20 07:27:58,736 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:27:58,737 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 07:27:58,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:27:58 BoogieIcfgContainer [2021-11-20 07:27:58,754 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 07:27:58,755 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:27:58,755 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:27:58,755 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:27:58,756 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:27:54" (3/4) ... [2021-11-20 07:27:58,758 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-20 07:27:58,764 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-11-20 07:27:58,764 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-11-20 07:27:58,764 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-11-20 07:27:58,765 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-11-20 07:27:58,772 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2021-11-20 07:27:58,772 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-11-20 07:27:58,773 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-20 07:27:58,773 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-20 07:27:58,774 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-20 07:27:58,774 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-20 07:27:58,775 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-20 07:27:58,797 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(pumpRunning == 0) || !(1 <= \old(waterLevel)) [2021-11-20 07:27:58,797 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(pumpRunning == 0) || \old(waterLevel) == waterLevel) || !(2 <= \old(waterLevel))) && ((!(pumpRunning == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) [2021-11-20 07:27:58,798 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\result == 0) && waterLevel == 1) || !(pumpRunning == 0)) || !(\old(waterLevel) == 1)) && ((!(pumpRunning == 0) || (!(\result == 0) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) [2021-11-20 07:27:58,798 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(pumpRunning == 0) || ((!(tmp == 0) && !(\result == 0)) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) && ((!(pumpRunning == 0) || !(\old(waterLevel) == 1)) || ((!(tmp == 0) && !(\result == 0)) && waterLevel == 1)) [2021-11-20 07:27:58,799 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(pumpRunning == 0) || !(1 <= \old(waterLevel)) [2021-11-20 07:27:58,799 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(pumpRunning == 0) || !(1 <= \old(waterLevel)) [2021-11-20 07:27:58,821 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09abd251-8f2c-4e9d-9a78-69fadc7b4522/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 07:27:58,821 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:27:58,822 INFO L158 Benchmark]: Toolchain (without parser) took 5111.38ms. Allocated memory was 115.3MB in the beginning and 157.3MB in the end (delta: 41.9MB). Free memory was 77.9MB in the beginning and 118.7MB in the end (delta: -40.8MB). Peak memory consumption was 1.1MB. Max. memory is 16.1GB. [2021-11-20 07:27:58,822 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 115.3MB. Free memory is still 95.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:27:58,822 INFO L158 Benchmark]: CACSL2BoogieTranslator took 545.20ms. Allocated memory is still 115.3MB. Free memory was 77.7MB in the beginning and 83.5MB in the end (delta: -5.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 07:27:58,823 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.92ms. Allocated memory is still 115.3MB. Free memory was 83.5MB in the beginning and 81.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:27:58,823 INFO L158 Benchmark]: Boogie Preprocessor took 52.91ms. Allocated memory is still 115.3MB. Free memory was 81.0MB in the beginning and 79.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:27:58,824 INFO L158 Benchmark]: RCFGBuilder took 461.49ms. Allocated memory is still 115.3MB. Free memory was 79.7MB in the beginning and 65.8MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-20 07:27:58,824 INFO L158 Benchmark]: TraceAbstraction took 3892.49ms. Allocated memory was 115.3MB in the beginning and 157.3MB in the end (delta: 41.9MB). Free memory was 65.4MB in the beginning and 122.9MB in the end (delta: -57.5MB). Peak memory consumption was 45.6MB. Max. memory is 16.1GB. [2021-11-20 07:27:58,824 INFO L158 Benchmark]: Witness Printer took 66.44ms. Allocated memory is still 157.3MB. Free memory was 122.9MB in the beginning and 118.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 07:27:58,826 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 115.3MB. Free memory is still 95.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 545.20ms. Allocated memory is still 115.3MB. Free memory was 77.7MB in the beginning and 83.5MB in the end (delta: -5.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.92ms. Allocated memory is still 115.3MB. Free memory was 83.5MB in the beginning and 81.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.91ms. Allocated memory is still 115.3MB. Free memory was 81.0MB in the beginning and 79.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 461.49ms. Allocated memory is still 115.3MB. Free memory was 79.7MB in the beginning and 65.8MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3892.49ms. Allocated memory was 115.3MB in the beginning and 157.3MB in the end (delta: 41.9MB). Free memory was 65.4MB in the beginning and 122.9MB in the end (delta: -57.5MB). Peak memory consumption was 45.6MB. Max. memory is 16.1GB. * Witness Printer took 66.44ms. Allocated memory is still 157.3MB. Free memory was 122.9MB in the beginning and 118.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 54]: 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 5 procedures, 62 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.8s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 473 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 468 mSDsluCounter, 1213 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 812 mSDsCounter, 76 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 290 IncrementalHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 76 mSolverCounterUnsat, 401 mSDtfsCounter, 290 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 152 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=180occurred in iteration=6, InterpolantAutomatonStates: 41, 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, 7 MinimizatonAttempts, 106 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 28 LocationsWithAnnotation, 226 PreInvPairs, 260 NumberOfFragments, 336 HoareAnnotationTreeSize, 226 FomulaSimplifications, 259 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 28 FomulaSimplificationsInter, 2024 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 246 NumberOfCodeBlocks, 246 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 288 ConstructedInterpolants, 0 QuantifiedInterpolants, 759 SizeOfPredicates, 0 NumberOfNonLiveVariables, 344 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 51/57 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: 736]: Loop Invariant Derived loop invariant: (((!(\result == 0) && waterLevel == 1) || !(pumpRunning == 0)) || !(\old(waterLevel) == 1)) && ((!(pumpRunning == 0) || (!(\result == 0) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 668]: Loop Invariant Derived loop invariant: !(pumpRunning == 0) || !(1 <= \old(waterLevel)) - InvariantResult [Line: 844]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 468]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 453]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && waterLevel == 1) && waterLevel == systemActive - InvariantResult [Line: 827]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && waterLevel == 1) && waterLevel == systemActive - InvariantResult [Line: 783]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 446]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && waterLevel == 1) && waterLevel == systemActive - InvariantResult [Line: 649]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && splverifierCounter == 0) && waterLevel == 1) || ((pumpRunning == 0 && 2 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 439]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && waterLevel == 1) && waterLevel == systemActive - InvariantResult [Line: 477]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 834]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 478]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && splverifierCounter == 0) && waterLevel == 1) || ((pumpRunning == 0 && 2 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 570]: Loop Invariant Derived loop invariant: ((!(pumpRunning == 0) || \old(waterLevel) == waterLevel) || !(2 <= \old(waterLevel))) && ((!(pumpRunning == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: !(pumpRunning == 0) || !(1 <= \old(waterLevel)) - InvariantResult [Line: 746]: Loop Invariant Derived loop invariant: ((!(pumpRunning == 0) || ((!(tmp == 0) && !(\result == 0)) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) && ((!(pumpRunning == 0) || !(\old(waterLevel) == 1)) || ((!(tmp == 0) && !(\result == 0)) && waterLevel == 1)) - InvariantResult [Line: 604]: Loop Invariant Derived loop invariant: !(pumpRunning == 0) || !(1 <= \old(waterLevel)) - InvariantResult [Line: 773]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-20 07:27:58,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09abd251-8f2c-4e9d-9a78-69fadc7b4522/bin/uautomizer-DQz5hQGWxF/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