./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product44.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product44.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 f18c518732faf536b365bed3360055c2f4eb753a861011ef1bbe74f5b721db8d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 13:16:48,418 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 13:16:48,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 13:16:48,504 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 13:16:48,505 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 13:16:48,509 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 13:16:48,511 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 13:16:48,514 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 13:16:48,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 13:16:48,522 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 13:16:48,523 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 13:16:48,524 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 13:16:48,526 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 13:16:48,528 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 13:16:48,529 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 13:16:48,531 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 13:16:48,532 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 13:16:48,533 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 13:16:48,538 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 13:16:48,539 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 13:16:48,544 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 13:16:48,545 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 13:16:48,546 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 13:16:48,547 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 13:16:48,552 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 13:16:48,552 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 13:16:48,552 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 13:16:48,554 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 13:16:48,555 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 13:16:48,555 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 13:16:48,556 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 13:16:48,557 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 13:16:48,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 13:16:48,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 13:16:48,560 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 13:16:48,560 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 13:16:48,560 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 13:16:48,561 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 13:16:48,561 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 13:16:48,561 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 13:16:48,562 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 13:16:48,563 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 13:16:48,593 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 13:16:48,593 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 13:16:48,594 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 13:16:48,594 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 13:16:48,594 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 13:16:48,594 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 13:16:48,595 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 13:16:48,595 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 13:16:48,595 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 13:16:48,595 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 13:16:48,596 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 13:16:48,596 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 13:16:48,597 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 13:16:48,597 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 13:16:48,597 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 13:16:48,597 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 13:16:48,597 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 13:16:48,597 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 13:16:48,598 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 13:16:48,598 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 13:16:48,598 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 13:16:48,598 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 13:16:48,598 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 13:16:48,599 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 13:16:48,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 13:16:48,599 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 13:16:48,599 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 13:16:48,599 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 13:16:48,600 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 13:16:48,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 13:16:48,600 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 13:16:48,600 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 13:16:48,600 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 13:16:48,601 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 13:16:48,601 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f18c518732faf536b365bed3360055c2f4eb753a861011ef1bbe74f5b721db8d [2021-12-21 13:16:48,855 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 13:16:48,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 13:16:48,885 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 13:16:48,886 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 13:16:48,887 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 13:16:48,888 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product44.cil.c [2021-12-21 13:16:48,952 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa767db70/c44c10c1830c4111930e4734323a0c43/FLAGbd507a3c0 [2021-12-21 13:16:49,452 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 13:16:49,453 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product44.cil.c [2021-12-21 13:16:49,475 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa767db70/c44c10c1830c4111930e4734323a0c43/FLAGbd507a3c0 [2021-12-21 13:16:49,811 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa767db70/c44c10c1830c4111930e4734323a0c43 [2021-12-21 13:16:49,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 13:16:49,815 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 13:16:49,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 13:16:49,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 13:16:49,819 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 13:16:49,820 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:16:49" (1/1) ... [2021-12-21 13:16:49,821 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4789a9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:16:49, skipping insertion in model container [2021-12-21 13:16:49,821 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:16:49" (1/1) ... [2021-12-21 13:16:49,828 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 13:16:49,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 13:16:50,118 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product44.cil.c[18005,18018] [2021-12-21 13:16:50,130 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 13:16:50,139 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 13:16:50,192 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product44.cil.c[18005,18018] [2021-12-21 13:16:50,194 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 13:16:50,213 INFO L208 MainTranslator]: Completed translation [2021-12-21 13:16:50,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:16:50 WrapperNode [2021-12-21 13:16:50,213 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 13:16:50,214 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 13:16:50,214 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 13:16:50,214 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 13:16:50,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:16:50" (1/1) ... [2021-12-21 13:16:50,242 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:16:50" (1/1) ... [2021-12-21 13:16:50,267 INFO L137 Inliner]: procedures = 57, calls = 157, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 261 [2021-12-21 13:16:50,268 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 13:16:50,268 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 13:16:50,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 13:16:50,269 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 13:16:50,276 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:16:50" (1/1) ... [2021-12-21 13:16:50,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:16:50" (1/1) ... [2021-12-21 13:16:50,279 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:16:50" (1/1) ... [2021-12-21 13:16:50,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:16:50" (1/1) ... [2021-12-21 13:16:50,293 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:16:50" (1/1) ... [2021-12-21 13:16:50,301 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:16:50" (1/1) ... [2021-12-21 13:16:50,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:16:50" (1/1) ... [2021-12-21 13:16:50,318 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 13:16:50,319 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 13:16:50,319 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 13:16:50,319 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 13:16:50,320 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:16:50" (1/1) ... [2021-12-21 13:16:50,333 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 13:16:50,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 13:16:50,353 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 13:16:50,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 13:16:50,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 13:16:50,396 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-21 13:16:50,396 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-21 13:16:50,396 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-21 13:16:50,396 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-21 13:16:50,396 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-21 13:16:50,396 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-21 13:16:50,397 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-21 13:16:50,397 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-21 13:16:50,397 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-12-21 13:16:50,397 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-12-21 13:16:50,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 13:16:50,397 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-21 13:16:50,397 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-21 13:16:50,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 13:16:50,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 13:16:50,492 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 13:16:50,494 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 13:16:50,880 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 13:16:50,886 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 13:16:50,893 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-21 13:16:50,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:16:50 BoogieIcfgContainer [2021-12-21 13:16:50,896 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 13:16:50,897 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 13:16:50,898 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 13:16:50,900 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 13:16:50,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 01:16:49" (1/3) ... [2021-12-21 13:16:50,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6196fe3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:16:50, skipping insertion in model container [2021-12-21 13:16:50,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:16:50" (2/3) ... [2021-12-21 13:16:50,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6196fe3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:16:50, skipping insertion in model container [2021-12-21 13:16:50,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:16:50" (3/3) ... [2021-12-21 13:16:50,905 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product44.cil.c [2021-12-21 13:16:50,911 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 13:16:50,912 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 13:16:50,969 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 13:16:50,977 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 [2021-12-21 13:16:50,977 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 13:16:51,004 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 71 states have (on average 1.3661971830985915) internal successors, (97), 77 states have internal predecessors, (97), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2021-12-21 13:16:51,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-21 13:16:51,015 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:16:51,016 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:16:51,017 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:16:51,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:16:51,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1684151890, now seen corresponding path program 1 times [2021-12-21 13:16:51,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:16:51,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432503276] [2021-12-21 13:16:51,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:16:51,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:16:51,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:51,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 13:16:51,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:51,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-21 13:16:51,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:51,307 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-21 13:16:51,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:16:51,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432503276] [2021-12-21 13:16:51,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432503276] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:16:51,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:16:51,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 13:16:51,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078345520] [2021-12-21 13:16:51,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:16:51,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-21 13:16:51,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:16:51,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-21 13:16:51,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 13:16:51,351 INFO L87 Difference]: Start difference. First operand has 89 states, 71 states have (on average 1.3661971830985915) internal successors, (97), 77 states have internal predecessors, (97), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-21 13:16:51,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:16:51,399 INFO L93 Difference]: Finished difference Result 169 states and 228 transitions. [2021-12-21 13:16:51,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 13:16:51,401 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2021-12-21 13:16:51,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:16:51,412 INFO L225 Difference]: With dead ends: 169 [2021-12-21 13:16:51,412 INFO L226 Difference]: Without dead ends: 80 [2021-12-21 13:16:51,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 13:16:51,419 INFO L933 BasicCegarLoop]: 111 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, 111 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 [2021-12-21 13:16:51,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:16:51,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-12-21 13:16:51,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-12-21 13:16:51,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 64 states have (on average 1.296875) internal successors, (83), 69 states have internal predecessors, (83), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2021-12-21 13:16:51,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 102 transitions. [2021-12-21 13:16:51,464 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 102 transitions. Word has length 32 [2021-12-21 13:16:51,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:16:51,464 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 102 transitions. [2021-12-21 13:16:51,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-21 13:16:51,465 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 102 transitions. [2021-12-21 13:16:51,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-12-21 13:16:51,469 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:16:51,469 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:16:51,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 13:16:51,471 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:16:51,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:16:51,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1709273223, now seen corresponding path program 1 times [2021-12-21 13:16:51,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:16:51,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237087181] [2021-12-21 13:16:51,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:16:51,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:16:51,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:51,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 13:16:51,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:51,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 13:16:51,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:51,605 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-21 13:16:51,605 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:16:51,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237087181] [2021-12-21 13:16:51,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237087181] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:16:51,606 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:16:51,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 13:16:51,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804758178] [2021-12-21 13:16:51,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:16:51,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 13:16:51,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:16:51,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 13:16:51,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 13:16:51,610 INFO L87 Difference]: Start difference. First operand 80 states and 102 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-21 13:16:51,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:16:51,625 INFO L93 Difference]: Finished difference Result 120 states and 153 transitions. [2021-12-21 13:16:51,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 13:16:51,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2021-12-21 13:16:51,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:16:51,630 INFO L225 Difference]: With dead ends: 120 [2021-12-21 13:16:51,630 INFO L226 Difference]: Without dead ends: 71 [2021-12-21 13:16:51,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 13:16:51,638 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 18 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 156 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 [2021-12-21 13:16:51,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 156 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:16:51,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-12-21 13:16:51,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-12-21 13:16:51,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 58 states have (on average 1.3103448275862069) internal successors, (76), 63 states have internal predecessors, (76), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-12-21 13:16:51,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 90 transitions. [2021-12-21 13:16:51,659 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 90 transitions. Word has length 33 [2021-12-21 13:16:51,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:16:51,660 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 90 transitions. [2021-12-21 13:16:51,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-21 13:16:51,661 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 90 transitions. [2021-12-21 13:16:51,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-12-21 13:16:51,663 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:16:51,663 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:16:51,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 13:16:51,664 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:16:51,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:16:51,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1502879027, now seen corresponding path program 1 times [2021-12-21 13:16:51,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:16:51,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27688173] [2021-12-21 13:16:51,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:16:51,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:16:51,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:51,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-21 13:16:51,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:51,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-21 13:16:51,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:51,746 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-21 13:16:51,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:16:51,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27688173] [2021-12-21 13:16:51,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27688173] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:16:51,747 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:16:51,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 13:16:51,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277654875] [2021-12-21 13:16:51,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:16:51,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 13:16:51,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:16:51,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 13:16:51,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 13:16:51,750 INFO L87 Difference]: Start difference. First operand 71 states and 90 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-21 13:16:51,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:16:51,796 INFO L93 Difference]: Finished difference Result 195 states and 253 transitions. [2021-12-21 13:16:51,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 13:16:51,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2021-12-21 13:16:51,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:16:51,803 INFO L225 Difference]: With dead ends: 195 [2021-12-21 13:16:51,803 INFO L226 Difference]: Without dead ends: 132 [2021-12-21 13:16:51,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 13:16:51,807 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 78 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:16:51,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 186 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:16:51,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-12-21 13:16:51,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 127. [2021-12-21 13:16:51,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 102 states have (on average 1.3333333333333333) internal successors, (136), 111 states have internal predecessors, (136), 14 states have call successors, (14), 10 states have call predecessors, (14), 10 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2021-12-21 13:16:51,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 164 transitions. [2021-12-21 13:16:51,829 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 164 transitions. Word has length 38 [2021-12-21 13:16:51,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:16:51,830 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 164 transitions. [2021-12-21 13:16:51,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-21 13:16:51,830 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 164 transitions. [2021-12-21 13:16:51,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-12-21 13:16:51,837 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:16:51,837 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:16:51,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 13:16:51,838 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:16:51,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:16:51,839 INFO L85 PathProgramCache]: Analyzing trace with hash -793445015, now seen corresponding path program 1 times [2021-12-21 13:16:51,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:16:51,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906439239] [2021-12-21 13:16:51,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:16:51,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:16:51,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:51,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-21 13:16:51,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:51,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 13:16:51,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:51,965 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-21 13:16:51,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:16:51,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906439239] [2021-12-21 13:16:51,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906439239] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:16:51,966 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:16:51,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 13:16:51,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129925845] [2021-12-21 13:16:51,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:16:51,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 13:16:51,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:16:51,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 13:16:51,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 13:16:51,967 INFO L87 Difference]: Start difference. First operand 127 states and 164 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-21 13:16:52,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:16:52,062 INFO L93 Difference]: Finished difference Result 342 states and 450 transitions. [2021-12-21 13:16:52,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 13:16:52,062 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 41 [2021-12-21 13:16:52,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:16:52,064 INFO L225 Difference]: With dead ends: 342 [2021-12-21 13:16:52,064 INFO L226 Difference]: Without dead ends: 223 [2021-12-21 13:16:52,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-21 13:16:52,066 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 47 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 13:16:52,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 425 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 13:16:52,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2021-12-21 13:16:52,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 211. [2021-12-21 13:16:52,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 166 states have (on average 1.2951807228915662) internal successors, (215), 179 states have internal predecessors, (215), 24 states have call successors, (24), 20 states have call predecessors, (24), 20 states have return successors, (28), 24 states have call predecessors, (28), 24 states have call successors, (28) [2021-12-21 13:16:52,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 267 transitions. [2021-12-21 13:16:52,086 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 267 transitions. Word has length 41 [2021-12-21 13:16:52,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:16:52,087 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 267 transitions. [2021-12-21 13:16:52,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-21 13:16:52,087 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 267 transitions. [2021-12-21 13:16:52,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-21 13:16:52,088 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:16:52,088 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:16:52,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 13:16:52,089 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:16:52,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:16:52,089 INFO L85 PathProgramCache]: Analyzing trace with hash 855988844, now seen corresponding path program 1 times [2021-12-21 13:16:52,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:16:52,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646463892] [2021-12-21 13:16:52,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:16:52,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:16:52,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:52,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-21 13:16:52,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:52,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-21 13:16:52,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:52,140 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-21 13:16:52,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:16:52,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646463892] [2021-12-21 13:16:52,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646463892] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:16:52,140 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:16:52,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 13:16:52,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762168554] [2021-12-21 13:16:52,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:16:52,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 13:16:52,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:16:52,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 13:16:52,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 13:16:52,142 INFO L87 Difference]: Start difference. First operand 211 states and 267 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-21 13:16:52,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:16:52,178 INFO L93 Difference]: Finished difference Result 462 states and 598 transitions. [2021-12-21 13:16:52,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-21 13:16:52,179 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51 [2021-12-21 13:16:52,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:16:52,181 INFO L225 Difference]: With dead ends: 462 [2021-12-21 13:16:52,181 INFO L226 Difference]: Without dead ends: 259 [2021-12-21 13:16:52,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-21 13:16:52,183 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 42 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:16:52,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 381 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:16:52,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2021-12-21 13:16:52,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 217. [2021-12-21 13:16:52,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 172 states have (on average 1.2848837209302326) internal successors, (221), 185 states have internal predecessors, (221), 24 states have call successors, (24), 20 states have call predecessors, (24), 20 states have return successors, (28), 24 states have call predecessors, (28), 24 states have call successors, (28) [2021-12-21 13:16:52,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 273 transitions. [2021-12-21 13:16:52,200 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 273 transitions. Word has length 51 [2021-12-21 13:16:52,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:16:52,201 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 273 transitions. [2021-12-21 13:16:52,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-21 13:16:52,205 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 273 transitions. [2021-12-21 13:16:52,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-21 13:16:52,206 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:16:52,206 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:16:52,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 13:16:52,206 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:16:52,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:16:52,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1278690670, now seen corresponding path program 1 times [2021-12-21 13:16:52,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:16:52,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710963278] [2021-12-21 13:16:52,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:16:52,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:16:52,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:52,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-21 13:16:52,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:52,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-21 13:16:52,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:52,295 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-21 13:16:52,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:16:52,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710963278] [2021-12-21 13:16:52,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710963278] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:16:52,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:16:52,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 13:16:52,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853806536] [2021-12-21 13:16:52,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:16:52,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 13:16:52,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:16:52,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 13:16:52,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 13:16:52,298 INFO L87 Difference]: Start difference. First operand 217 states and 273 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-21 13:16:52,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:16:52,378 INFO L93 Difference]: Finished difference Result 486 states and 624 transitions. [2021-12-21 13:16:52,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-21 13:16:52,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51 [2021-12-21 13:16:52,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:16:52,383 INFO L225 Difference]: With dead ends: 486 [2021-12-21 13:16:52,384 INFO L226 Difference]: Without dead ends: 277 [2021-12-21 13:16:52,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-21 13:16:52,386 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 155 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:16:52,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 437 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:16:52,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2021-12-21 13:16:52,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 221. [2021-12-21 13:16:52,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 176 states have (on average 1.2784090909090908) internal successors, (225), 189 states have internal predecessors, (225), 24 states have call successors, (24), 20 states have call predecessors, (24), 20 states have return successors, (28), 24 states have call predecessors, (28), 24 states have call successors, (28) [2021-12-21 13:16:52,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 277 transitions. [2021-12-21 13:16:52,414 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 277 transitions. Word has length 51 [2021-12-21 13:16:52,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:16:52,415 INFO L470 AbstractCegarLoop]: Abstraction has 221 states and 277 transitions. [2021-12-21 13:16:52,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-21 13:16:52,415 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 277 transitions. [2021-12-21 13:16:52,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-21 13:16:52,417 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:16:52,417 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:16:52,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-21 13:16:52,418 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:16:52,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:16:52,418 INFO L85 PathProgramCache]: Analyzing trace with hash -526747664, now seen corresponding path program 1 times [2021-12-21 13:16:52,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:16:52,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112476186] [2021-12-21 13:16:52,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:16:52,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:16:52,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:52,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-21 13:16:52,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:52,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-21 13:16:52,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:52,497 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-21 13:16:52,497 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:16:52,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112476186] [2021-12-21 13:16:52,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112476186] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:16:52,497 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:16:52,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 13:16:52,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247866927] [2021-12-21 13:16:52,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:16:52,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 13:16:52,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:16:52,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 13:16:52,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 13:16:52,499 INFO L87 Difference]: Start difference. First operand 221 states and 277 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-21 13:16:52,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:16:52,522 INFO L93 Difference]: Finished difference Result 528 states and 667 transitions. [2021-12-21 13:16:52,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 13:16:52,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51 [2021-12-21 13:16:52,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:16:52,525 INFO L225 Difference]: With dead ends: 528 [2021-12-21 13:16:52,525 INFO L226 Difference]: Without dead ends: 315 [2021-12-21 13:16:52,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 13:16:52,526 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 39 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:16:52,527 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 171 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:16:52,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2021-12-21 13:16:52,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2021-12-21 13:16:52,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 250 states have (on average 1.248) internal successors, (312), 265 states have internal predecessors, (312), 36 states have call successors, (36), 30 states have call predecessors, (36), 28 states have return successors, (40), 34 states have call predecessors, (40), 36 states have call successors, (40) [2021-12-21 13:16:52,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 388 transitions. [2021-12-21 13:16:52,541 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 388 transitions. Word has length 51 [2021-12-21 13:16:52,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:16:52,542 INFO L470 AbstractCegarLoop]: Abstraction has 315 states and 388 transitions. [2021-12-21 13:16:52,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-21 13:16:52,542 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 388 transitions. [2021-12-21 13:16:52,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-21 13:16:52,543 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:16:52,543 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2021-12-21 13:16:52,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-21 13:16:52,544 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:16:52,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:16:52,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1427287338, now seen corresponding path program 1 times [2021-12-21 13:16:52,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:16:52,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852966911] [2021-12-21 13:16:52,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:16:52,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:16:52,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:52,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 13:16:52,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:52,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 13:16:52,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:52,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 13:16:52,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:52,660 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-21 13:16:52,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:16:52,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852966911] [2021-12-21 13:16:52,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852966911] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:16:52,661 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:16:52,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-21 13:16:52,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230791275] [2021-12-21 13:16:52,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:16:52,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-21 13:16:52,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:16:52,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-21 13:16:52,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-21 13:16:52,663 INFO L87 Difference]: Start difference. First operand 315 states and 388 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-21 13:16:53,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:16:53,040 INFO L93 Difference]: Finished difference Result 1084 states and 1399 transitions. [2021-12-21 13:16:53,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-21 13:16:53,041 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 55 [2021-12-21 13:16:53,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:16:53,048 INFO L225 Difference]: With dead ends: 1084 [2021-12-21 13:16:53,049 INFO L226 Difference]: Without dead ends: 871 [2021-12-21 13:16:53,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2021-12-21 13:16:53,051 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 341 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-21 13:16:53,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [351 Valid, 587 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-21 13:16:53,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2021-12-21 13:16:53,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 815. [2021-12-21 13:16:53,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 815 states, 648 states have (on average 1.2191358024691359) internal successors, (790), 689 states have internal predecessors, (790), 90 states have call successors, (90), 66 states have call predecessors, (90), 76 states have return successors, (128), 86 states have call predecessors, (128), 90 states have call successors, (128) [2021-12-21 13:16:53,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1008 transitions. [2021-12-21 13:16:53,118 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1008 transitions. Word has length 55 [2021-12-21 13:16:53,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:16:53,119 INFO L470 AbstractCegarLoop]: Abstraction has 815 states and 1008 transitions. [2021-12-21 13:16:53,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-21 13:16:53,119 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1008 transitions. [2021-12-21 13:16:53,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-12-21 13:16:53,121 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:16:53,121 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1] [2021-12-21 13:16:53,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-21 13:16:53,121 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:16:53,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:16:53,122 INFO L85 PathProgramCache]: Analyzing trace with hash -616604212, now seen corresponding path program 1 times [2021-12-21 13:16:53,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:16:53,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566346957] [2021-12-21 13:16:53,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:16:53,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:16:53,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:53,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 13:16:53,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:53,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-21 13:16:53,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:53,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:16:53,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:53,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-21 13:16:53,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:53,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-21 13:16:53,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:53,227 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-21 13:16:53,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:16:53,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566346957] [2021-12-21 13:16:53,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566346957] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:16:53,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:16:53,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 13:16:53,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121596904] [2021-12-21 13:16:53,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:16:53,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 13:16:53,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:16:53,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 13:16:53,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-21 13:16:53,230 INFO L87 Difference]: Start difference. First operand 815 states and 1008 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2021-12-21 13:16:53,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:16:53,431 INFO L93 Difference]: Finished difference Result 1379 states and 1704 transitions. [2021-12-21 13:16:53,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 13:16:53,431 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 85 [2021-12-21 13:16:53,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:16:53,435 INFO L225 Difference]: With dead ends: 1379 [2021-12-21 13:16:53,436 INFO L226 Difference]: Without dead ends: 572 [2021-12-21 13:16:53,438 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-12-21 13:16:53,440 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 183 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 13:16:53,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 327 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 13:16:53,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2021-12-21 13:16:53,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 562. [2021-12-21 13:16:53,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 445 states have (on average 1.208988764044944) internal successors, (538), 473 states have internal predecessors, (538), 63 states have call successors, (63), 48 states have call predecessors, (63), 53 states have return successors, (83), 60 states have call predecessors, (83), 63 states have call successors, (83) [2021-12-21 13:16:53,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 684 transitions. [2021-12-21 13:16:53,479 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 684 transitions. Word has length 85 [2021-12-21 13:16:53,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:16:53,480 INFO L470 AbstractCegarLoop]: Abstraction has 562 states and 684 transitions. [2021-12-21 13:16:53,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2021-12-21 13:16:53,480 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 684 transitions. [2021-12-21 13:16:53,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-12-21 13:16:53,490 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:16:53,490 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 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, 1] [2021-12-21 13:16:53,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-21 13:16:53,490 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:16:53,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:16:53,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1396479385, now seen corresponding path program 1 times [2021-12-21 13:16:53,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:16:53,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530248025] [2021-12-21 13:16:53,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:16:53,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:16:53,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:53,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 13:16:53,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:53,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-21 13:16:53,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:53,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:16:53,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:53,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-21 13:16:53,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:53,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-21 13:16:53,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:53,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-21 13:16:53,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:53,620 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-21 13:16:53,620 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:16:53,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530248025] [2021-12-21 13:16:53,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530248025] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 13:16:53,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [504262996] [2021-12-21 13:16:53,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:16:53,621 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 13:16:53,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 13:16:53,627 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 13:16:53,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-21 13:16:53,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:53,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-21 13:16:53,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 13:16:54,019 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:16:54,019 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 13:16:54,224 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-21 13:16:54,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [504262996] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 13:16:54,225 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 13:16:54,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 6] total 14 [2021-12-21 13:16:54,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308457583] [2021-12-21 13:16:54,226 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 13:16:54,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-21 13:16:54,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:16:54,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-21 13:16:54,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-12-21 13:16:54,227 INFO L87 Difference]: Start difference. First operand 562 states and 684 transitions. Second operand has 14 states, 14 states have (on average 7.642857142857143) internal successors, (107), 10 states have internal predecessors, (107), 6 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) [2021-12-21 13:16:54,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:16:54,862 INFO L93 Difference]: Finished difference Result 1055 states and 1307 transitions. [2021-12-21 13:16:54,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-12-21 13:16:54,863 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.642857142857143) internal successors, (107), 10 states have internal predecessors, (107), 6 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) Word has length 87 [2021-12-21 13:16:54,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:16:54,864 INFO L225 Difference]: With dead ends: 1055 [2021-12-21 13:16:54,864 INFO L226 Difference]: Without dead ends: 0 [2021-12-21 13:16:54,867 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 188 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=256, Invalid=934, Unknown=0, NotChecked=0, Total=1190 [2021-12-21 13:16:54,867 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 315 mSDsluCounter, 1046 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-21 13:16:54,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [320 Valid, 1220 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-21 13:16:54,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-21 13:16:54,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-21 13:16:54,869 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) [2021-12-21 13:16:54,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-21 13:16:54,869 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 87 [2021-12-21 13:16:54,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:16:54,869 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 13:16:54,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.642857142857143) internal successors, (107), 10 states have internal predecessors, (107), 6 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) [2021-12-21 13:16:54,870 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-21 13:16:54,870 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-21 13:16:54,872 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-21 13:16:54,904 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-21 13:16:55,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-21 13:16:55,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-21 13:16:58,783 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 556 562) no Hoare annotation was computed. [2021-12-21 13:16:58,783 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 556 562) the Hoare annotation is: true [2021-12-21 13:16:58,784 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 83 94) the Hoare annotation is: true [2021-12-21 13:16:58,784 INFO L858 garLoopResultBuilder]: For program point L87-1(lines 83 94) no Hoare annotation was computed. [2021-12-21 13:16:58,784 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 83 94) no Hoare annotation was computed. [2021-12-21 13:16:58,784 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 831 860) no Hoare annotation was computed. [2021-12-21 13:16:58,784 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 831 860) the Hoare annotation is: true [2021-12-21 13:16:58,784 INFO L861 garLoopResultBuilder]: At program point L856(lines 831 860) the Hoare annotation is: true [2021-12-21 13:16:58,784 INFO L858 garLoopResultBuilder]: For program point L852(line 852) no Hoare annotation was computed. [2021-12-21 13:16:58,784 INFO L858 garLoopResultBuilder]: For program point L845(lines 845 849) no Hoare annotation was computed. [2021-12-21 13:16:58,784 INFO L861 garLoopResultBuilder]: At program point L845-1(lines 845 849) the Hoare annotation is: true [2021-12-21 13:16:58,785 INFO L858 garLoopResultBuilder]: For program point L842(line 842) no Hoare annotation was computed. [2021-12-21 13:16:58,785 INFO L861 garLoopResultBuilder]: At program point L841-2(lines 841 855) the Hoare annotation is: true [2021-12-21 13:16:58,785 INFO L861 garLoopResultBuilder]: At program point L837(line 837) the Hoare annotation is: true [2021-12-21 13:16:58,785 INFO L858 garLoopResultBuilder]: For program point L837-1(line 837) no Hoare annotation was computed. [2021-12-21 13:16:58,785 INFO L858 garLoopResultBuilder]: For program point L543-1(lines 543 549) no Hoare annotation was computed. [2021-12-21 13:16:58,785 INFO L858 garLoopResultBuilder]: For program point L605(lines 605 611) no Hoare annotation was computed. [2021-12-21 13:16:58,785 INFO L858 garLoopResultBuilder]: For program point L572(lines 572 580) no Hoare annotation was computed. [2021-12-21 13:16:58,785 INFO L854 garLoopResultBuilder]: At program point L605-2(lines 598 614) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse5 (not (<= 1 |old(~pumpRunning~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (<= |old(~waterLevel~0)| 2)))) (and (let ((.cse2 (<= 2 ~waterLevel~0)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 .cse1 (and (= ~pumpRunning~0 0) .cse2 .cse3) (and (<= 1 ~pumpRunning~0) .cse2 .cse3) .cse4)) (or .cse1 .cse5 .cse4 (not (<= 2 |old(~waterLevel~0)|))) (or .cse1 .cse5 .cse4 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse0 .cse4 (not (= 0 ~systemActive~0))))) [2021-12-21 13:16:58,785 INFO L858 garLoopResultBuilder]: For program point L568(lines 568 585) no Hoare annotation was computed. [2021-12-21 13:16:58,785 INFO L854 garLoopResultBuilder]: At program point L630(lines 623 633) the Hoare annotation is: (let ((.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 .cse1 .cse2 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse3 .cse2 (not (= 0 ~systemActive~0))) (or .cse3 .cse0 (and (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse2))) [2021-12-21 13:16:58,785 INFO L858 garLoopResultBuilder]: For program point L688(lines 688 692) no Hoare annotation was computed. [2021-12-21 13:16:58,785 INFO L858 garLoopResultBuilder]: For program point L688-2(lines 688 692) no Hoare annotation was computed. [2021-12-21 13:16:58,786 INFO L858 garLoopResultBuilder]: For program point L969(lines 969 975) no Hoare annotation was computed. [2021-12-21 13:16:58,786 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 529 555) no Hoare annotation was computed. [2021-12-21 13:16:58,786 INFO L858 garLoopResultBuilder]: For program point L932(line 932) no Hoare annotation was computed. [2021-12-21 13:16:58,786 INFO L854 garLoopResultBuilder]: At program point L953(lines 946 955) the Hoare annotation is: (let ((.cse6 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (and (= ~pumpRunning~0 0) .cse6)) (.cse2 (not (= 1 ~systemActive~0))) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse5 (and (<= 1 ~pumpRunning~0) .cse6 (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse2 .cse4 .cse5 .cse3 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse0 .cse1 .cse3 (not (= 0 ~systemActive~0))) (or .cse2 .cse4 .cse5 .cse3 (not (<= 2 |old(~waterLevel~0)|)))))) [2021-12-21 13:16:58,786 INFO L858 garLoopResultBuilder]: For program point L536(lines 536 542) no Hoare annotation was computed. [2021-12-21 13:16:58,786 INFO L858 garLoopResultBuilder]: For program point L536-2(lines 532 554) no Hoare annotation was computed. [2021-12-21 13:16:58,787 INFO L854 garLoopResultBuilder]: At program point L594(lines 589 596) the Hoare annotation is: (let ((.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 .cse1 .cse2 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse3 .cse2 (not (= 0 ~systemActive~0))) (or .cse3 .cse0 (and (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse2))) [2021-12-21 13:16:58,787 INFO L858 garLoopResultBuilder]: For program point L140(lines 140 146) no Hoare annotation was computed. [2021-12-21 13:16:58,787 INFO L854 garLoopResultBuilder]: At program point L966(line 966) the Hoare annotation is: (let ((.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse5 (<= 1 ~pumpRunning~0)) (.cse6 (<= 1 ~switchedOnBeforeTS~0)) (.cse1 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (.cse8 (not (= 0 ~systemActive~0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse7 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse2 .cse4 .cse3 (and .cse5 (= ~waterLevel~0 1) .cse6) .cse7) (or .cse2 .cse4 .cse3 (and .cse5 (<= ~waterLevel~0 2) .cse6) (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse0 .cse3 .cse8 .cse7) (or .cse0 .cse1 .cse3 .cse8) (or .cse0 .cse2 .cse3 .cse7))) [2021-12-21 13:16:58,787 INFO L858 garLoopResultBuilder]: For program point L966-1(line 966) no Hoare annotation was computed. [2021-12-21 13:16:58,787 INFO L854 garLoopResultBuilder]: At program point L933(lines 928 935) the Hoare annotation is: (let ((.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 .cse1 .cse2 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse3 .cse2 (not (= 0 ~systemActive~0))) (or .cse3 .cse0 .cse2))) [2021-12-21 13:16:58,788 INFO L854 garLoopResultBuilder]: At program point L132(lines 127 135) the Hoare annotation is: (let ((.cse4 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse2 (not (= 1 ~systemActive~0))) (.cse8 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (<= 1 ~pumpRunning~0)) (.cse9 (<= 1 ~switchedOnBeforeTS~0)) (.cse1 (and (= ~pumpRunning~0 0) .cse4)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse10 (not (= 0 ~systemActive~0))) (.cse6 (and (<= |timeShift_getWaterLevel_#res#1| 2) (<= 2 |timeShift_getWaterLevel_#res#1|))) (.cse7 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 (and .cse3 (<= 2 ~waterLevel~0) .cse4) .cse5) (or .cse0 .cse2 .cse5 .cse6 .cse7) (or .cse2 .cse8 .cse5 (and .cse3 (= ~waterLevel~0 1) .cse9) .cse7) (or .cse2 .cse8 .cse5 (and .cse3 (<= ~waterLevel~0 2) .cse9) (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse0 .cse1 .cse5 .cse10) (or .cse0 .cse5 .cse10 .cse6 .cse7)))) [2021-12-21 13:16:58,788 INFO L854 garLoopResultBuilder]: At program point L578(line 578) the Hoare annotation is: (let ((.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 .cse1 .cse2 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse3 .cse2 (not (= 0 ~systemActive~0))) (or .cse3 .cse0 .cse2 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0) (= |timeShift_processEnvironment_~tmp~3#1| 0))))) [2021-12-21 13:16:58,788 INFO L854 garLoopResultBuilder]: At program point L694(lines 679 697) the Hoare annotation is: (let ((.cse3 (not (= 1 ~systemActive~0))) (.cse5 (not (<= 1 |old(~pumpRunning~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (<= |old(~waterLevel~0)| 2)))) (and (let ((.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (and .cse1 (= |timeShift_isHighWaterLevel_~tmp___0~0#1| 0) (= |timeShift_isHighWaterLevel_#res#1| 0) (not (= |timeShift_isHighWaterLevel_~tmp~5#1| 0)) .cse2) .cse3 (and .cse1 (<= 2 ~waterLevel~0) .cse2) .cse4)) (or .cse3 .cse5 .cse4 (not (<= 2 |old(~waterLevel~0)|))) (or .cse3 .cse5 .cse4 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse0 .cse4 (not (= 0 ~systemActive~0))))) [2021-12-21 13:16:58,788 INFO L854 garLoopResultBuilder]: At program point L145(lines 136 149) the Hoare annotation is: (let ((.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 .cse1 .cse2 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse3 .cse2 (not (= 0 ~systemActive~0))) (let ((.cse4 (= ~pumpRunning~0 0)) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse3 (and .cse4 (not (= |timeShift_isHighWaterSensorDry_#res#1| 0)) .cse5) .cse0 (and .cse4 (<= 2 ~waterLevel~0) .cse5) .cse2)))) [2021-12-21 13:16:58,788 INFO L854 garLoopResultBuilder]: At program point L583(line 583) the Hoare annotation is: (let ((.cse3 (not (<= 1 |old(~pumpRunning~0)|))) (.cse4 (<= 1 ~pumpRunning~0)) (.cse5 (<= 1 ~switchedOnBeforeTS~0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse1 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 (not (= 0 ~systemActive~0))) (or .cse2 .cse3 .cse1 (and .cse4 (= ~waterLevel~0 1) .cse5) (not (<= 2 |old(~waterLevel~0)|))) (or .cse2 .cse3 .cse1 (and .cse4 (<= ~waterLevel~0 2) .cse5) (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse0 .cse2 .cse1))) [2021-12-21 13:16:58,789 INFO L854 garLoopResultBuilder]: At program point L583-1(lines 564 588) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse5 (not (<= 1 |old(~pumpRunning~0)|))) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse3 (<= 1 ~pumpRunning~0)) (.cse6 (<= 1 ~switchedOnBeforeTS~0))) (and (let ((.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (and (= ~pumpRunning~0 0) .cse1) .cse2 (and .cse3 (<= 2 ~waterLevel~0) .cse1) .cse4)) (or .cse0 .cse4 (not (= 0 ~systemActive~0))) (or .cse2 .cse5 .cse4 (and .cse3 (= ~waterLevel~0 1) .cse6) (not (<= 2 |old(~waterLevel~0)|))) (or .cse2 .cse5 .cse4 (and .cse3 (<= ~waterLevel~0 2) .cse6) (not (<= 1 |old(~switchedOnBeforeTS~0)|))))) [2021-12-21 13:16:58,789 INFO L854 garLoopResultBuilder]: At program point L100(lines 95 103) the Hoare annotation is: (let ((.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 .cse1 .cse2 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse3 .cse2 (not (= 0 ~systemActive~0))) (or .cse3 .cse0 (and (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse2))) [2021-12-21 13:16:58,789 INFO L858 garLoopResultBuilder]: For program point L63(lines 63 67) no Hoare annotation was computed. [2021-12-21 13:16:58,789 INFO L854 garLoopResultBuilder]: At program point L63-2(lines 59 70) the Hoare annotation is: (let ((.cse3 (not (<= 1 |old(~pumpRunning~0)|))) (.cse4 (<= 1 ~pumpRunning~0)) (.cse5 (<= 1 ~switchedOnBeforeTS~0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse1 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 (not (= 0 ~systemActive~0))) (or .cse2 .cse3 .cse1 (and .cse4 (= ~waterLevel~0 1) .cse5) (not (<= 2 |old(~waterLevel~0)|))) (or .cse2 .cse3 .cse1 (and .cse4 (<= ~waterLevel~0 2) .cse5) (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse0 .cse2 .cse1))) [2021-12-21 13:16:58,789 INFO L854 garLoopResultBuilder]: At program point L951(line 951) the Hoare annotation is: (let ((.cse6 (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|)) (.cse7 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (and (= ~pumpRunning~0 0) .cse6 .cse7)) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse6 .cse7))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse2 .cse4 .cse3 .cse5 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse0 .cse1 .cse3 (not (= 0 ~systemActive~0))) (or .cse2 .cse4 .cse3 .cse5 (not (<= 2 |old(~waterLevel~0)|)))))) [2021-12-21 13:16:58,790 INFO L858 garLoopResultBuilder]: For program point L951-1(line 951) no Hoare annotation was computed. [2021-12-21 13:16:58,790 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 529 555) the Hoare annotation is: (let ((.cse6 (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|)) (.cse7 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (and (= ~pumpRunning~0 0) .cse6 .cse7)) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse6 .cse7))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse2 .cse4 .cse3 .cse5 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse0 .cse1 .cse3 (not (= 0 ~systemActive~0))) (or .cse2 .cse4 .cse3 .cse5 (not (<= 2 |old(~waterLevel~0)|)))))) [2021-12-21 13:16:58,790 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 529 555) no Hoare annotation was computed. [2021-12-21 13:16:58,790 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 932) no Hoare annotation was computed. [2021-12-21 13:16:58,790 INFO L858 garLoopResultBuilder]: For program point L968(lines 968 978) no Hoare annotation was computed. [2021-12-21 13:16:58,790 INFO L858 garLoopResultBuilder]: For program point L964(lines 964 981) no Hoare annotation was computed. [2021-12-21 13:16:58,791 INFO L854 garLoopResultBuilder]: At program point L964-1(lines 956 984) the Hoare annotation is: (let ((.cse7 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse8 (not (<= 1 |old(~pumpRunning~0)|))) (.cse6 (<= 1 ~pumpRunning~0)) (.cse9 (<= 1 ~switchedOnBeforeTS~0)) (.cse2 (and (<= |timeShift_getWaterLevel_#res#1| 2) (< 1 |timeShift___utac_acc__Specification5_spec__3_~tmp~8#1|) (<= 2 |timeShift_getWaterLevel_#res#1|) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~8#1| 2))) (.cse4 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (and (= ~pumpRunning~0 0) .cse7)) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse10 (not (= 0 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse1 (and .cse6 (<= 2 ~waterLevel~0) .cse7) .cse3) (or .cse1 .cse8 .cse3 (and .cse6 (= ~waterLevel~0 1) .cse9) .cse4) (or .cse1 .cse8 .cse3 (and .cse6 (<= ~waterLevel~0 2) .cse9) (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse0 .cse2 .cse3 .cse10 .cse4) (or .cse0 .cse5 .cse3 .cse10)))) [2021-12-21 13:16:58,791 INFO L861 garLoopResultBuilder]: At program point L923(lines 904 926) the Hoare annotation is: true [2021-12-21 13:16:58,791 INFO L854 garLoopResultBuilder]: At program point L783(lines 732 784) the Hoare annotation is: false [2021-12-21 13:16:58,791 INFO L858 garLoopResultBuilder]: For program point L771(lines 771 777) no Hoare annotation was computed. [2021-12-21 13:16:58,791 INFO L854 garLoopResultBuilder]: At program point L771-2(lines 763 778) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 0)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= ~waterLevel~0 2))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3) (and .cse4 .cse2 .cse3 (= 0 ~systemActive~0)) (and .cse4 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse3 (<= 1 ~switchedOnBeforeTS~0)))) [2021-12-21 13:16:58,791 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-21 13:16:58,792 INFO L858 garLoopResultBuilder]: For program point L734(lines 733 782) no Hoare annotation was computed. [2021-12-21 13:16:58,792 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-21 13:16:58,792 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-21 13:16:58,792 INFO L858 garLoopResultBuilder]: For program point L763(lines 763 778) no Hoare annotation was computed. [2021-12-21 13:16:58,792 INFO L854 garLoopResultBuilder]: At program point L825(lines 820 828) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-21 13:16:58,792 INFO L854 garLoopResultBuilder]: At program point L755(line 755) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 0)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= ~waterLevel~0 2))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3) (and .cse4 .cse2 .cse3 (= 0 ~systemActive~0)) (and .cse4 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse3 (<= 1 ~switchedOnBeforeTS~0)))) [2021-12-21 13:16:58,792 INFO L854 garLoopResultBuilder]: At program point L817(lines 813 819) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-21 13:16:58,793 INFO L854 garLoopResultBuilder]: At program point L718(lines 713 720) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= ~waterLevel~0 2))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse3 (<= 1 ~switchedOnBeforeTS~0)))) [2021-12-21 13:16:58,793 INFO L854 garLoopResultBuilder]: At program point L780(lines 733 782) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 0)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= ~waterLevel~0 2))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3) (and .cse4 .cse2 .cse3 (= 0 ~systemActive~0)) (and .cse4 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse3 (<= 1 ~switchedOnBeforeTS~0)))) [2021-12-21 13:16:58,793 INFO L858 garLoopResultBuilder]: For program point L743(lines 743 749) no Hoare annotation was computed. [2021-12-21 13:16:58,793 INFO L858 garLoopResultBuilder]: For program point L743-1(lines 743 749) no Hoare annotation was computed. [2021-12-21 13:16:58,793 INFO L854 garLoopResultBuilder]: At program point L710(lines 698 712) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (<= ~waterLevel~0 2) (= 0 ~systemActive~0)) [2021-12-21 13:16:58,793 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-21 13:16:58,793 INFO L858 garLoopResultBuilder]: For program point L735(lines 735 739) no Hoare annotation was computed. [2021-12-21 13:16:58,794 INFO L858 garLoopResultBuilder]: For program point L702(lines 702 708) no Hoare annotation was computed. [2021-12-21 13:16:58,794 INFO L858 garLoopResultBuilder]: For program point L702-2(lines 702 708) no Hoare annotation was computed. [2021-12-21 13:16:58,794 INFO L854 garLoopResultBuilder]: At program point L620(lines 615 622) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 .cse2 .cse3 (<= 1 ~switchedOnBeforeTS~0)) (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3))) [2021-12-21 13:16:58,794 INFO L854 garLoopResultBuilder]: At program point L810(lines 806 812) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-21 13:16:58,794 INFO L861 garLoopResultBuilder]: At program point L901(lines 893 903) the Hoare annotation is: true [2021-12-21 13:16:58,794 INFO L854 garLoopResultBuilder]: At program point L889(lines 885 891) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-21 13:16:58,794 INFO L858 garLoopResultBuilder]: For program point L914(lines 914 921) no Hoare annotation was computed. [2021-12-21 13:16:58,795 INFO L861 garLoopResultBuilder]: At program point L786(lines 723 790) the Hoare annotation is: true [2021-12-21 13:16:58,795 INFO L858 garLoopResultBuilder]: For program point L753(lines 753 759) no Hoare annotation was computed. [2021-12-21 13:16:58,795 INFO L858 garLoopResultBuilder]: For program point L753-1(lines 753 759) no Hoare annotation was computed. [2021-12-21 13:16:58,795 INFO L858 garLoopResultBuilder]: For program point L914-2(lines 914 921) no Hoare annotation was computed. [2021-12-21 13:16:58,795 INFO L854 garLoopResultBuilder]: At program point L943(lines 938 945) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-21 13:16:58,795 INFO L854 garLoopResultBuilder]: At program point L745(line 745) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 0)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= ~waterLevel~0 2))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3) (and .cse4 .cse2 .cse3 (= 0 ~systemActive~0)) (and .cse4 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse3 (<= 1 ~switchedOnBeforeTS~0)))) [2021-12-21 13:16:58,795 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 71 82) no Hoare annotation was computed. [2021-12-21 13:16:58,795 INFO L858 garLoopResultBuilder]: For program point L75-1(lines 71 82) no Hoare annotation was computed. [2021-12-21 13:16:58,796 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 71 82) the Hoare annotation is: (let ((.cse1 (not (<= 1 ~pumpRunning~0))) (.cse4 (not (= ~pumpRunning~0 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (<= 1 ~switchedOnBeforeTS~0))) (or .cse0 .cse1 .cse2 .cse3 (not (<= 2 |old(~waterLevel~0)|))) (or .cse4 .cse2 .cse3 (not (= 0 ~systemActive~0))) (or .cse4 .cse0 .cse2 .cse3))) [2021-12-21 13:16:58,796 INFO L858 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 634 642) no Hoare annotation was computed. [2021-12-21 13:16:58,796 INFO L861 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 634 642) the Hoare annotation is: true [2021-12-21 13:16:58,796 INFO L858 garLoopResultBuilder]: For program point isPumpRunningFINAL(lines 634 642) no Hoare annotation was computed. [2021-12-21 13:16:58,799 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:16:58,800 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-21 13:16:58,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 01:16:58 BoogieIcfgContainer [2021-12-21 13:16:58,826 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-21 13:16:58,826 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 13:16:58,827 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 13:16:58,827 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 13:16:58,827 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:16:50" (3/4) ... [2021-12-21 13:16:58,830 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-21 13:16:58,834 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-12-21 13:16:58,835 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-12-21 13:16:58,835 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-12-21 13:16:58,835 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-12-21 13:16:58,835 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-12-21 13:16:58,835 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2021-12-21 13:16:58,842 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 50 nodes and edges [2021-12-21 13:16:58,842 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-12-21 13:16:58,843 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-21 13:16:58,843 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-21 13:16:58,844 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-21 13:16:58,844 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-21 13:16:58,844 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-21 13:16:58,864 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || ((1 <= pumpRunning && \old(waterLevel) == waterLevel) && 1 <= switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) || !(1 <= \old(switchedOnBeforeTS)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || ((1 <= pumpRunning && \old(waterLevel) == waterLevel) && 1 <= switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2021-12-21 13:16:58,864 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel == 1) && 1 <= switchedOnBeforeTS)) || !(2 <= \old(waterLevel)))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel <= 2) && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) [2021-12-21 13:16:58,865 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (((\result <= 2 && 1 < tmp) && 2 <= \result) && tmp <= 2)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || ((1 <= pumpRunning && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel == 1) && 1 <= switchedOnBeforeTS)) || !(2 <= \old(waterLevel)))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel <= 2) && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS)))) && ((((!(\old(pumpRunning) == 0) || (((\result <= 2 && 1 < tmp) && 2 <= \result) && tmp <= 2)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) [2021-12-21 13:16:58,865 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || ((1 <= pumpRunning && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel == 1) && 1 <= switchedOnBeforeTS)) || !(2 <= \old(waterLevel)))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel <= 2) && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS))) [2021-12-21 13:16:58,865 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) [2021-12-21 13:16:58,866 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || ((1 <= pumpRunning && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || (\result <= 2 && 2 <= \result)) || !(2 <= \old(waterLevel)))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel == 1) && 1 <= switchedOnBeforeTS)) || !(2 <= \old(waterLevel)))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel <= 2) && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || (\result <= 2 && 2 <= \result)) || !(2 <= \old(waterLevel))) [2021-12-21 13:16:58,866 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && !(\result == 0)) && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || ((pumpRunning == 0 && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) [2021-12-21 13:16:58,866 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || ((((pumpRunning == 0 && tmp___0 == 0) && \result == 0) && !(tmp == 0)) && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || ((pumpRunning == 0 && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) [2021-12-21 13:16:58,866 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) [2021-12-21 13:16:58,867 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) [2021-12-21 13:16:58,867 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || ((1 <= pumpRunning && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) [2021-12-21 13:16:58,867 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((1 <= pumpRunning && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) [2021-12-21 13:16:58,888 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-21 13:16:58,888 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 13:16:58,888 INFO L158 Benchmark]: Toolchain (without parser) took 9073.76ms. Allocated memory was 94.4MB in the beginning and 136.3MB in the end (delta: 41.9MB). Free memory was 64.7MB in the beginning and 88.6MB in the end (delta: -23.8MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2021-12-21 13:16:58,889 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 77.6MB. Free memory was 34.5MB in the beginning and 34.4MB in the end (delta: 41.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 13:16:58,889 INFO L158 Benchmark]: CACSL2BoogieTranslator took 397.51ms. Allocated memory is still 94.4MB. Free memory was 64.4MB in the beginning and 64.2MB in the end (delta: 138.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 13:16:58,889 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.57ms. Allocated memory is still 94.4MB. Free memory was 64.2MB in the beginning and 61.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 13:16:58,890 INFO L158 Benchmark]: Boogie Preprocessor took 50.09ms. Allocated memory is still 94.4MB. Free memory was 61.6MB in the beginning and 60.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 13:16:58,890 INFO L158 Benchmark]: RCFGBuilder took 577.00ms. Allocated memory is still 94.4MB. Free memory was 60.1MB in the beginning and 43.9MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-21 13:16:58,890 INFO L158 Benchmark]: TraceAbstraction took 7928.51ms. Allocated memory was 94.4MB in the beginning and 136.3MB in the end (delta: 41.9MB). Free memory was 43.3MB in the beginning and 94.9MB in the end (delta: -51.5MB). Peak memory consumption was 53.5MB. Max. memory is 16.1GB. [2021-12-21 13:16:58,891 INFO L158 Benchmark]: Witness Printer took 61.48ms. Allocated memory is still 136.3MB. Free memory was 94.9MB in the beginning and 88.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-21 13:16:58,892 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 77.6MB. Free memory was 34.5MB in the beginning and 34.4MB in the end (delta: 41.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 397.51ms. Allocated memory is still 94.4MB. Free memory was 64.4MB in the beginning and 64.2MB in the end (delta: 138.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.57ms. Allocated memory is still 94.4MB. Free memory was 64.2MB in the beginning and 61.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.09ms. Allocated memory is still 94.4MB. Free memory was 61.6MB in the beginning and 60.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 577.00ms. Allocated memory is still 94.4MB. Free memory was 60.1MB in the beginning and 43.9MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7928.51ms. Allocated memory was 94.4MB in the beginning and 136.3MB in the end (delta: 41.9MB). Free memory was 43.3MB in the beginning and 94.9MB in the end (delta: -51.5MB). Peak memory consumption was 53.5MB. Max. memory is 16.1GB. * Witness Printer took 61.48ms. Allocated memory is still 136.3MB. Free memory was 94.9MB in the beginning and 88.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 932]: 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 7 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.8s, OverallIterations: 10, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.7s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1248 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1218 mSDsluCounter, 4001 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2836 mSDsCounter, 273 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1149 IncrementalHoareTripleChecker+Invalid, 1422 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 273 mSolverCounterUnsat, 1165 mSDtfsCounter, 1149 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 336 GetRequests, 254 SyntacticMatches, 2 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=815occurred in iteration=8, InterpolantAutomatonStates: 85, 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, 10 MinimizatonAttempts, 181 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 42 LocationsWithAnnotation, 1466 PreInvPairs, 1671 NumberOfFragments, 2063 HoareAnnotationTreeSize, 1466 FomulaSimplifications, 6239 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 42 FomulaSimplificationsInter, 9847 FormulaSimplificationTreeSizeReductionInter, 3.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 611 NumberOfCodeBlocks, 611 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 686 ConstructedInterpolants, 0 QuantifiedInterpolants, 1373 SizeOfPredicates, 3 NumberOfNonLiveVariables, 454 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 120/142 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: 698]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && splverifierCounter == 0) && waterLevel <= 2) && 0 == systemActive - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: (((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && !(\result == 0)) && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || ((pumpRunning == 0 && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) - InvariantResult [Line: 806]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 733]: Loop Invariant Derived loop invariant: ((((((1 <= pumpRunning && 2 <= waterLevel) && 1 == systemActive) && splverifierCounter == 0) && waterLevel <= 2) || (((pumpRunning == 0 && splverifierCounter == 0) && waterLevel <= 2) && 0 == systemActive)) || (((pumpRunning == 0 && 1 == systemActive) && splverifierCounter == 0) && waterLevel <= 2)) || ((((1 <= pumpRunning && 1 == systemActive) && splverifierCounter == 0) && waterLevel <= 2) && 1 <= switchedOnBeforeTS) - InvariantResult [Line: 904]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 831]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 938]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 564]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || ((1 <= pumpRunning && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel == 1) && 1 <= switchedOnBeforeTS)) || !(2 <= \old(waterLevel)))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel <= 2) && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS))) - InvariantResult [Line: 928]: Loop Invariant Derived loop invariant: (((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) - InvariantResult [Line: 885]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 732]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 956]: Loop Invariant Derived loop invariant: ((((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (((\result <= 2 && 1 < tmp) && 2 <= \result) && tmp <= 2)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || ((1 <= pumpRunning && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel == 1) && 1 <= switchedOnBeforeTS)) || !(2 <= \old(waterLevel)))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel <= 2) && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS)))) && ((((!(\old(pumpRunning) == 0) || (((\result <= 2 && 1 < tmp) && 2 <= \result) && tmp <= 2)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel == 1) && 1 <= switchedOnBeforeTS)) || !(2 <= \old(waterLevel)))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel <= 2) && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) - InvariantResult [Line: 723]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 598]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || ((1 <= pumpRunning && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) - InvariantResult [Line: 95]: Loop Invariant Derived loop invariant: (((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) - InvariantResult [Line: 615]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && 1 == systemActive) && splverifierCounter == 0) && waterLevel <= 2) && 1 <= switchedOnBeforeTS) || ((((pumpRunning == 0 && 2 <= waterLevel) && 1 == systemActive) && splverifierCounter == 0) && waterLevel <= 2) - InvariantResult [Line: 713]: Loop Invariant Derived loop invariant: (((((1 <= pumpRunning && 2 <= waterLevel) && 1 == systemActive) && splverifierCounter == 0) && waterLevel <= 2) || (((pumpRunning == 0 && 1 == systemActive) && splverifierCounter == 0) && waterLevel <= 2)) || ((((1 <= pumpRunning && 1 == systemActive) && splverifierCounter == 0) && waterLevel <= 2) && 1 <= switchedOnBeforeTS) - InvariantResult [Line: 820]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 623]: Loop Invariant Derived loop invariant: (((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) - InvariantResult [Line: 813]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: ((((((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || ((1 <= pumpRunning && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || (\result <= 2 && 2 <= \result)) || !(2 <= \old(waterLevel)))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel == 1) && 1 <= switchedOnBeforeTS)) || !(2 <= \old(waterLevel)))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel <= 2) && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || (\result <= 2 && 2 <= \result)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 679]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || ((((pumpRunning == 0 && tmp___0 == 0) && \result == 0) && !(tmp == 0)) && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || ((pumpRunning == 0 && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) - InvariantResult [Line: 893]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 589]: Loop Invariant Derived loop invariant: (((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(\old(waterLevel) <= 2)) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((1 <= pumpRunning && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) - InvariantResult [Line: 946]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || ((1 <= pumpRunning && \old(waterLevel) == waterLevel) && 1 <= switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) || !(1 <= \old(switchedOnBeforeTS)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || ((1 <= pumpRunning && \old(waterLevel) == waterLevel) && 1 <= switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 841]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-12-21 13:16:58,955 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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