./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product26.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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_spec4_product26.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 2d0674916b73dbf2024f3c8466ce9ed88de71a9608fd9c94d283a7055c71f71f --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 05:01:30,847 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 05:01:30,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 05:01:30,881 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 05:01:30,881 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 05:01:30,883 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 05:01:30,886 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 05:01:30,888 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 05:01:30,890 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 05:01:30,893 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 05:01:30,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 05:01:30,896 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 05:01:30,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 05:01:30,898 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 05:01:30,899 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 05:01:30,903 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 05:01:30,903 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 05:01:30,904 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 05:01:30,906 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 05:01:30,910 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 05:01:30,911 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 05:01:30,912 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 05:01:30,913 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 05:01:30,914 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 05:01:30,915 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 05:01:30,919 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 05:01:30,920 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 05:01:30,920 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 05:01:30,921 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 05:01:30,921 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 05:01:30,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 05:01:30,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 05:01:30,923 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 05:01:30,924 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 05:01:30,925 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 05:01:30,925 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 05:01:30,926 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 05:01:30,926 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 05:01:30,926 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 05:01:30,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 05:01:30,927 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 05:01:30,928 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 05:01:30,934 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 05:01:30,959 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 05:01:30,959 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 05:01:30,960 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 05:01:30,960 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 05:01:30,960 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 05:01:30,961 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 05:01:30,961 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 05:01:30,961 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 05:01:30,961 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 05:01:30,962 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 05:01:30,962 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 05:01:30,962 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 05:01:30,962 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 05:01:30,963 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 05:01:30,970 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 05:01:30,970 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 05:01:30,970 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 05:01:30,970 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 05:01:30,971 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 05:01:30,971 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 05:01:30,971 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 05:01:30,971 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 05:01:30,971 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 05:01:30,971 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 05:01:30,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:01:30,972 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 05:01:30,972 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 05:01:30,972 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 05:01:30,972 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 05:01:30,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 05:01:30,973 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 05:01:30,973 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 05:01:30,973 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 05:01:30,973 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d0674916b73dbf2024f3c8466ce9ed88de71a9608fd9c94d283a7055c71f71f [2022-07-21 05:01:31,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 05:01:31,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 05:01:31,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 05:01:31,268 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 05:01:31,269 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 05:01:31,269 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product26.cil.c [2022-07-21 05:01:31,339 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c4c00a91/0cdef0c031444a1b9c9a19292af781f5/FLAGaae8fe066 [2022-07-21 05:01:31,724 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 05:01:31,725 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product26.cil.c [2022-07-21 05:01:31,739 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c4c00a91/0cdef0c031444a1b9c9a19292af781f5/FLAGaae8fe066 [2022-07-21 05:01:31,747 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c4c00a91/0cdef0c031444a1b9c9a19292af781f5 [2022-07-21 05:01:31,751 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 05:01:31,752 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 05:01:31,754 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 05:01:31,754 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 05:01:31,756 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 05:01:31,757 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:01:31" (1/1) ... [2022-07-21 05:01:31,757 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ea38476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:31, skipping insertion in model container [2022-07-21 05:01:31,758 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:01:31" (1/1) ... [2022-07-21 05:01:31,762 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 05:01:31,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 05:01:31,933 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_spec4_product26.cil.c[1605,1618] [2022-07-21 05:01:32,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:01:32,081 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 05:01:32,094 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_spec4_product26.cil.c[1605,1618] [2022-07-21 05:01:32,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:01:32,144 INFO L208 MainTranslator]: Completed translation [2022-07-21 05:01:32,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:32 WrapperNode [2022-07-21 05:01:32,144 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 05:01:32,145 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 05:01:32,145 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 05:01:32,145 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 05:01:32,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:32" (1/1) ... [2022-07-21 05:01:32,170 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:32" (1/1) ... [2022-07-21 05:01:32,197 INFO L137 Inliner]: procedures = 54, calls = 152, calls flagged for inlining = 24, calls inlined = 18, statements flattened = 222 [2022-07-21 05:01:32,197 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 05:01:32,198 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 05:01:32,198 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 05:01:32,198 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 05:01:32,204 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:32" (1/1) ... [2022-07-21 05:01:32,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:32" (1/1) ... [2022-07-21 05:01:32,205 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:32" (1/1) ... [2022-07-21 05:01:32,206 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:32" (1/1) ... [2022-07-21 05:01:32,209 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:32" (1/1) ... [2022-07-21 05:01:32,212 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:32" (1/1) ... [2022-07-21 05:01:32,213 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:32" (1/1) ... [2022-07-21 05:01:32,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 05:01:32,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 05:01:32,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 05:01:32,215 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 05:01:32,215 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:32" (1/1) ... [2022-07-21 05:01:32,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:01:32,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 05:01:32,243 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) [2022-07-21 05:01:32,248 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 [2022-07-21 05:01:32,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 05:01:32,271 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-21 05:01:32,271 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-21 05:01:32,271 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-21 05:01:32,271 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-21 05:01:32,271 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-21 05:01:32,271 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-21 05:01:32,271 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-21 05:01:32,271 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-21 05:01:32,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 05:01:32,271 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-21 05:01:32,271 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-21 05:01:32,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 05:01:32,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 05:01:32,344 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 05:01:32,349 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 05:01:32,605 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 05:01:32,614 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 05:01:32,614 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-21 05:01:32,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:01:32 BoogieIcfgContainer [2022-07-21 05:01:32,616 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 05:01:32,617 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 05:01:32,617 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 05:01:32,619 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 05:01:32,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 05:01:31" (1/3) ... [2022-07-21 05:01:32,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5882d820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:01:32, skipping insertion in model container [2022-07-21 05:01:32,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:32" (2/3) ... [2022-07-21 05:01:32,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5882d820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:01:32, skipping insertion in model container [2022-07-21 05:01:32,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:01:32" (3/3) ... [2022-07-21 05:01:32,624 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product26.cil.c [2022-07-21 05:01:32,634 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 05:01:32,634 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 05:01:32,674 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 05:01:32,678 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@28462624, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@12fcd477 [2022-07-21 05:01:32,679 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 05:01:32,691 INFO L276 IsEmpty]: Start isEmpty. Operand has 70 states, 55 states have (on average 1.4) internal successors, (77), 61 states have internal predecessors, (77), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-07-21 05:01:32,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-21 05:01:32,697 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:01:32,697 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:01:32,698 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:01:32,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:01:32,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1610382818, now seen corresponding path program 1 times [2022-07-21 05:01:32,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:01:32,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485611381] [2022-07-21 05:01:32,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:01:32,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:01:32,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:32,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:01:32,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:01:32,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485611381] [2022-07-21 05:01:32,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485611381] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:01:32,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:01:32,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 05:01:32,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248888817] [2022-07-21 05:01:32,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:01:32,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 05:01:32,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:01:32,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 05:01:32,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 05:01:32,930 INFO L87 Difference]: Start difference. First operand has 70 states, 55 states have (on average 1.4) internal successors, (77), 61 states have internal predecessors, (77), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:01:32,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:01:32,949 INFO L93 Difference]: Finished difference Result 132 states and 181 transitions. [2022-07-21 05:01:32,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 05:01:32,951 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-07-21 05:01:32,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:01:32,956 INFO L225 Difference]: With dead ends: 132 [2022-07-21 05:01:32,956 INFO L226 Difference]: Without dead ends: 61 [2022-07-21 05:01:32,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 05:01:32,960 INFO L413 NwaCegarLoop]: 87 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, 87 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 [2022-07-21 05:01:32,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:01:32,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-07-21 05:01:32,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-07-21 05:01:32,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 48 states have (on average 1.3125) internal successors, (63), 53 states have internal predecessors, (63), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-21 05:01:32,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 78 transitions. [2022-07-21 05:01:32,985 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 78 transitions. Word has length 19 [2022-07-21 05:01:32,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:01:32,985 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 78 transitions. [2022-07-21 05:01:32,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:01:32,985 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 78 transitions. [2022-07-21 05:01:32,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-21 05:01:32,986 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:01:32,986 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:01:32,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 05:01:32,987 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:01:32,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:01:32,987 INFO L85 PathProgramCache]: Analyzing trace with hash 2007451734, now seen corresponding path program 1 times [2022-07-21 05:01:32,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:01:32,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198437253] [2022-07-21 05:01:32,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:01:32,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:01:33,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:33,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:01:33,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:01:33,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198437253] [2022-07-21 05:01:33,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198437253] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:01:33,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:01:33,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:01:33,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605045355] [2022-07-21 05:01:33,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:01:33,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:01:33,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:01:33,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:01:33,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:01:33,067 INFO L87 Difference]: Start difference. First operand 61 states and 78 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:01:33,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:01:33,074 INFO L93 Difference]: Finished difference Result 87 states and 111 transitions. [2022-07-21 05:01:33,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:01:33,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-07-21 05:01:33,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:01:33,075 INFO L225 Difference]: With dead ends: 87 [2022-07-21 05:01:33,075 INFO L226 Difference]: Without dead ends: 52 [2022-07-21 05:01:33,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:01:33,083 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 13 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 113 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 [2022-07-21 05:01:33,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 113 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:01:33,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-07-21 05:01:33,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-07-21 05:01:33,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 42 states have (on average 1.3333333333333333) internal successors, (56), 47 states have internal predecessors, (56), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-21 05:01:33,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 66 transitions. [2022-07-21 05:01:33,089 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 66 transitions. Word has length 20 [2022-07-21 05:01:33,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:01:33,089 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 66 transitions. [2022-07-21 05:01:33,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:01:33,089 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 66 transitions. [2022-07-21 05:01:33,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-21 05:01:33,090 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:01:33,090 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:01:33,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 05:01:33,090 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:01:33,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:01:33,091 INFO L85 PathProgramCache]: Analyzing trace with hash -262713576, now seen corresponding path program 1 times [2022-07-21 05:01:33,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:01:33,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590471531] [2022-07-21 05:01:33,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:01:33,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:01:33,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:33,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:01:33,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:01:33,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590471531] [2022-07-21 05:01:33,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590471531] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:01:33,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:01:33,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 05:01:33,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30586506] [2022-07-21 05:01:33,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:01:33,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 05:01:33,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:01:33,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 05:01:33,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-21 05:01:33,157 INFO L87 Difference]: Start difference. First operand 52 states and 66 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:01:33,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:01:33,240 INFO L93 Difference]: Finished difference Result 97 states and 126 transitions. [2022-07-21 05:01:33,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 05:01:33,240 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-07-21 05:01:33,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:01:33,241 INFO L225 Difference]: With dead ends: 97 [2022-07-21 05:01:33,241 INFO L226 Difference]: Without dead ends: 52 [2022-07-21 05:01:33,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-21 05:01:33,242 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 130 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:01:33,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 129 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:01:33,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-07-21 05:01:33,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-07-21 05:01:33,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 42 states have (on average 1.3095238095238095) internal successors, (55), 47 states have internal predecessors, (55), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-21 05:01:33,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 65 transitions. [2022-07-21 05:01:33,255 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 65 transitions. Word has length 25 [2022-07-21 05:01:33,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:01:33,255 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 65 transitions. [2022-07-21 05:01:33,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:01:33,256 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 65 transitions. [2022-07-21 05:01:33,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-21 05:01:33,257 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:01:33,257 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:01:33,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 05:01:33,257 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:01:33,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:01:33,260 INFO L85 PathProgramCache]: Analyzing trace with hash -678572638, now seen corresponding path program 1 times [2022-07-21 05:01:33,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:01:33,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336209512] [2022-07-21 05:01:33,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:01:33,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:01:33,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:33,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 05:01:33,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:33,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:01:33,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:01:33,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336209512] [2022-07-21 05:01:33,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336209512] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:01:33,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:01:33,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 05:01:33,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355044943] [2022-07-21 05:01:33,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:01:33,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 05:01:33,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:01:33,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 05:01:33,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-21 05:01:33,336 INFO L87 Difference]: Start difference. First operand 52 states and 65 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 05:01:33,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:01:33,521 INFO L93 Difference]: Finished difference Result 179 states and 241 transitions. [2022-07-21 05:01:33,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 05:01:33,522 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-07-21 05:01:33,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:01:33,523 INFO L225 Difference]: With dead ends: 179 [2022-07-21 05:01:33,524 INFO L226 Difference]: Without dead ends: 134 [2022-07-21 05:01:33,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2022-07-21 05:01:33,525 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 130 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:01:33,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 433 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:01:33,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-07-21 05:01:33,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 129. [2022-07-21 05:01:33,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 103 states have (on average 1.3106796116504855) internal successors, (135), 115 states have internal predecessors, (135), 14 states have call successors, (14), 11 states have call predecessors, (14), 11 states have return successors, (17), 11 states have call predecessors, (17), 14 states have call successors, (17) [2022-07-21 05:01:33,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 166 transitions. [2022-07-21 05:01:33,541 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 166 transitions. Word has length 30 [2022-07-21 05:01:33,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:01:33,541 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 166 transitions. [2022-07-21 05:01:33,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 05:01:33,541 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 166 transitions. [2022-07-21 05:01:33,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-21 05:01:33,543 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:01:33,543 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:01:33,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 05:01:33,543 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:01:33,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:01:33,544 INFO L85 PathProgramCache]: Analyzing trace with hash -186593091, now seen corresponding path program 1 times [2022-07-21 05:01:33,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:01:33,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570160044] [2022-07-21 05:01:33,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:01:33,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:01:33,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:33,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 05:01:33,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:33,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:01:33,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:01:33,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570160044] [2022-07-21 05:01:33,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570160044] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:01:33,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:01:33,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:01:33,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316315296] [2022-07-21 05:01:33,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:01:33,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:01:33,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:01:33,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:01:33,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:01:33,605 INFO L87 Difference]: Start difference. First operand 129 states and 166 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 05:01:33,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:01:33,630 INFO L93 Difference]: Finished difference Result 225 states and 291 transitions. [2022-07-21 05:01:33,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:01:33,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2022-07-21 05:01:33,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:01:33,632 INFO L225 Difference]: With dead ends: 225 [2022-07-21 05:01:33,632 INFO L226 Difference]: Without dead ends: 103 [2022-07-21 05:01:33,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:01:33,633 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 33 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:01:33,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 47 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:01:33,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-07-21 05:01:33,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2022-07-21 05:01:33,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 80 states have (on average 1.225) internal successors, (98), 86 states have internal predecessors, (98), 11 states have call successors, (11), 11 states have call predecessors, (11), 11 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2022-07-21 05:01:33,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 121 transitions. [2022-07-21 05:01:33,644 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 121 transitions. Word has length 32 [2022-07-21 05:01:33,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:01:33,645 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 121 transitions. [2022-07-21 05:01:33,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 05:01:33,645 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 121 transitions. [2022-07-21 05:01:33,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-07-21 05:01:33,646 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:01:33,646 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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] [2022-07-21 05:01:33,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 05:01:33,647 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:01:33,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:01:33,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1947547759, now seen corresponding path program 1 times [2022-07-21 05:01:33,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:01:33,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267394382] [2022-07-21 05:01:33,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:01:33,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:01:33,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:33,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 05:01:33,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:33,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 05:01:33,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:33,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 05:01:33,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:33,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 05:01:33,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:33,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 05:01:33,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:33,728 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-21 05:01:33,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:01:33,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267394382] [2022-07-21 05:01:33,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267394382] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 05:01:33,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426842853] [2022-07-21 05:01:33,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:01:33,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 05:01:33,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 05:01:33,733 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) [2022-07-21 05:01:33,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-21 05:01:33,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:33,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-21 05:01:33,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 05:01:33,928 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-21 05:01:33,928 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 05:01:34,091 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-21 05:01:34,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426842853] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 05:01:34,092 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 05:01:34,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 15 [2022-07-21 05:01:34,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504233787] [2022-07-21 05:01:34,092 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 05:01:34,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-21 05:01:34,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:01:34,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-21 05:01:34,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2022-07-21 05:01:34,095 INFO L87 Difference]: Start difference. First operand 103 states and 121 transitions. Second operand has 15 states, 15 states have (on average 6.2) internal successors, (93), 12 states have internal predecessors, (93), 6 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) [2022-07-21 05:01:34,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:01:34,249 INFO L93 Difference]: Finished difference Result 137 states and 161 transitions. [2022-07-21 05:01:34,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 05:01:34,250 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.2) internal successors, (93), 12 states have internal predecessors, (93), 6 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) Word has length 61 [2022-07-21 05:01:34,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:01:34,251 INFO L225 Difference]: With dead ends: 137 [2022-07-21 05:01:34,251 INFO L226 Difference]: Without dead ends: 0 [2022-07-21 05:01:34,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 124 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2022-07-21 05:01:34,256 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 116 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:01:34,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 336 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:01:34,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-21 05:01:34,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-21 05:01:34,257 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) [2022-07-21 05:01:34,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-21 05:01:34,257 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2022-07-21 05:01:34,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:01:34,257 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-21 05:01:34,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.2) internal successors, (93), 12 states have internal predecessors, (93), 6 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) [2022-07-21 05:01:34,257 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-21 05:01:34,257 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-21 05:01:34,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 05:01:34,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-21 05:01:34,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-07-21 05:01:34,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-21 05:01:35,070 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 167 173) no Hoare annotation was computed. [2022-07-21 05:01:35,071 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 167 173) the Hoare annotation is: true [2022-07-21 05:01:35,071 INFO L899 garLoopResultBuilder]: For program point L349-1(lines 345 356) no Hoare annotation was computed. [2022-07-21 05:01:35,071 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 345 356) the Hoare annotation is: true [2022-07-21 05:01:35,071 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 345 356) no Hoare annotation was computed. [2022-07-21 05:01:35,071 INFO L902 garLoopResultBuilder]: At program point L864(lines 839 868) the Hoare annotation is: true [2022-07-21 05:01:35,071 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 839 868) no Hoare annotation was computed. [2022-07-21 05:01:35,071 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 839 868) the Hoare annotation is: true [2022-07-21 05:01:35,071 INFO L899 garLoopResultBuilder]: For program point L860(line 860) no Hoare annotation was computed. [2022-07-21 05:01:35,071 INFO L899 garLoopResultBuilder]: For program point L853(lines 853 857) no Hoare annotation was computed. [2022-07-21 05:01:35,071 INFO L902 garLoopResultBuilder]: At program point L853-1(lines 853 857) the Hoare annotation is: true [2022-07-21 05:01:35,072 INFO L899 garLoopResultBuilder]: For program point L850(line 850) no Hoare annotation was computed. [2022-07-21 05:01:35,072 INFO L902 garLoopResultBuilder]: At program point L849-2(lines 849 863) the Hoare annotation is: true [2022-07-21 05:01:35,072 INFO L902 garLoopResultBuilder]: At program point L845(line 845) the Hoare annotation is: true [2022-07-21 05:01:35,072 INFO L899 garLoopResultBuilder]: For program point L845-1(line 845) no Hoare annotation was computed. [2022-07-21 05:01:35,072 INFO L895 garLoopResultBuilder]: At program point L250(lines 245 253) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (not (<= 1 |old(~waterLevel~0)|))) [2022-07-21 05:01:35,072 INFO L895 garLoopResultBuilder]: At program point L403(lines 398 406) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (not (<= 1 |old(~waterLevel~0)|))) [2022-07-21 05:01:35,072 INFO L899 garLoopResultBuilder]: For program point L147-1(lines 146 165) no Hoare annotation was computed. [2022-07-21 05:01:35,072 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 143 166) no Hoare annotation was computed. [2022-07-21 05:01:35,072 INFO L899 garLoopResultBuilder]: For program point L325(lines 325 329) no Hoare annotation was computed. [2022-07-21 05:01:35,072 INFO L899 garLoopResultBuilder]: For program point L420(lines 420 426) no Hoare annotation was computed. [2022-07-21 05:01:35,072 INFO L895 garLoopResultBuilder]: At program point L325-2(lines 321 332) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (not (<= 1 |old(~waterLevel~0)|))) [2022-07-21 05:01:35,072 INFO L899 garLoopResultBuilder]: For program point L416(lines 416 429) no Hoare annotation was computed. [2022-07-21 05:01:35,072 INFO L895 garLoopResultBuilder]: At program point L416-1(lines 408 432) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (not (= |timeShift___utac_acc__Specification4_spec__1_~tmp~4#1| 0))) (.cse4 (not (= |timeShift_getWaterLevel_#res#1| 0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and .cse2 .cse3 .cse4 (= ~waterLevel~0 1))) (or .cse0 .cse1 (and .cse2 .cse3 .cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))))) [2022-07-21 05:01:35,073 INFO L895 garLoopResultBuilder]: At program point L189(line 189) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (not (<= 1 |old(~waterLevel~0)|))) [2022-07-21 05:01:35,073 INFO L895 garLoopResultBuilder]: At program point L305(lines 290 308) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (not (<= 1 |old(~waterLevel~0)|))) [2022-07-21 05:01:35,073 INFO L895 garLoopResultBuilder]: At program point L231(lines 226 233) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (not (<= 1 |old(~waterLevel~0)|))) [2022-07-21 05:01:35,073 INFO L895 garLoopResultBuilder]: At program point L194(line 194) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 (and .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse2 (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse2 (and .cse1 (= ~waterLevel~0 1))))) [2022-07-21 05:01:35,073 INFO L895 garLoopResultBuilder]: At program point L194-1(lines 175 199) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 (and .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse2 (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse2 (and .cse1 (= ~waterLevel~0 1))))) [2022-07-21 05:01:35,073 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2022-07-21 05:01:35,073 INFO L899 garLoopResultBuilder]: For program point L154-1(lines 154 160) no Hoare annotation was computed. [2022-07-21 05:01:35,073 INFO L899 garLoopResultBuilder]: For program point L183(lines 183 191) no Hoare annotation was computed. [2022-07-21 05:01:35,073 INFO L895 garLoopResultBuilder]: At program point L55(lines 50 57) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (not (<= 1 |old(~waterLevel~0)|))) [2022-07-21 05:01:35,073 INFO L899 garLoopResultBuilder]: For program point L179(lines 179 196) no Hoare annotation was computed. [2022-07-21 05:01:35,073 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 143 166) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 (and .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse2 (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse2 (and .cse1 (= ~waterLevel~0 1))))) [2022-07-21 05:01:35,073 INFO L899 garLoopResultBuilder]: For program point L299(lines 299 303) no Hoare annotation was computed. [2022-07-21 05:01:35,073 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 143 166) no Hoare annotation was computed. [2022-07-21 05:01:35,074 INFO L895 garLoopResultBuilder]: At program point L394(lines 389 397) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (not (= |timeShift_getWaterLevel_#res#1| 0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and .cse2 .cse3 (= ~waterLevel~0 1))) (or .cse0 .cse1 (and .cse2 .cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))))) [2022-07-21 05:01:35,074 INFO L899 garLoopResultBuilder]: For program point L299-2(lines 299 303) no Hoare annotation was computed. [2022-07-21 05:01:35,074 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2022-07-21 05:01:35,074 INFO L895 garLoopResultBuilder]: At program point L122(lines 73 123) the Hoare annotation is: false [2022-07-21 05:01:35,074 INFO L902 garLoopResultBuilder]: At program point L907(lines 900 909) the Hoare annotation is: true [2022-07-21 05:01:35,074 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-21 05:01:35,074 INFO L899 garLoopResultBuilder]: For program point L94(lines 94 100) no Hoare annotation was computed. [2022-07-21 05:01:35,074 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-21 05:01:35,074 INFO L899 garLoopResultBuilder]: For program point L94-1(lines 94 100) no Hoare annotation was computed. [2022-07-21 05:01:35,074 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-21 05:01:35,074 INFO L899 garLoopResultBuilder]: For program point L920(lines 920 927) no Hoare annotation was computed. [2022-07-21 05:01:35,074 INFO L895 garLoopResultBuilder]: At program point L119(lines 74 121) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~8#1| ~systemActive~0))) (or (and .cse0 (<= 2 ~waterLevel~0) (= 1 ~systemActive~0) .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1) (= ~waterLevel~0 |ULTIMATE.start_main_~tmp~8#1|) .cse3))) [2022-07-21 05:01:35,074 INFO L895 garLoopResultBuilder]: At program point L86(line 86) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~8#1| ~systemActive~0))) (or (and .cse0 (<= 2 ~waterLevel~0) (= 1 ~systemActive~0) .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1) (= ~waterLevel~0 |ULTIMATE.start_main_~tmp~8#1|) .cse3))) [2022-07-21 05:01:35,075 INFO L899 garLoopResultBuilder]: For program point L920-2(lines 920 927) no Hoare annotation was computed. [2022-07-21 05:01:35,075 INFO L902 garLoopResultBuilder]: At program point L929(lines 910 932) the Hoare annotation is: true [2022-07-21 05:01:35,075 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-21 05:01:35,075 INFO L895 garLoopResultBuilder]: At program point L314(lines 309 316) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~8#1| ~systemActive~0))) (or (and .cse0 (<= 2 ~waterLevel~0) (= 1 ~systemActive~0) .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1) (= ~waterLevel~0 |ULTIMATE.start_main_~tmp~8#1|) .cse3))) [2022-07-21 05:01:35,075 INFO L895 garLoopResultBuilder]: At program point L467(lines 462 470) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1)) [2022-07-21 05:01:35,075 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 116) no Hoare annotation was computed. [2022-07-21 05:01:35,075 INFO L895 garLoopResultBuilder]: At program point L112-2(lines 104 117) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~8#1| ~systemActive~0))) (or (and .cse0 (<= 2 ~waterLevel~0) (= 1 ~systemActive~0) .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1) (= ~waterLevel~0 |ULTIMATE.start_main_~tmp~8#1|) .cse3))) [2022-07-21 05:01:35,075 INFO L895 garLoopResultBuilder]: At program point L459(lines 455 461) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-07-21 05:01:35,075 INFO L899 garLoopResultBuilder]: For program point L75(lines 74 121) no Hoare annotation was computed. [2022-07-21 05:01:35,075 INFO L899 garLoopResultBuilder]: For program point L104(lines 104 117) no Hoare annotation was computed. [2022-07-21 05:01:35,075 INFO L895 garLoopResultBuilder]: At program point L897(lines 893 899) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1) (= ~waterLevel~0 |ULTIMATE.start_main_~tmp~8#1|) (= |ULTIMATE.start_main_~tmp~8#1| ~systemActive~0)) [2022-07-21 05:01:35,075 INFO L895 garLoopResultBuilder]: At program point L96(line 96) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~8#1| ~systemActive~0))) (or (and .cse0 (<= 2 ~waterLevel~0) (= 1 ~systemActive~0) .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1) (= ~waterLevel~0 |ULTIMATE.start_main_~tmp~8#1|) .cse3))) [2022-07-21 05:01:35,075 INFO L902 garLoopResultBuilder]: At program point L125(lines 64 129) the Hoare annotation is: true [2022-07-21 05:01:35,075 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 90) no Hoare annotation was computed. [2022-07-21 05:01:35,076 INFO L899 garLoopResultBuilder]: For program point L84-1(lines 84 90) no Hoare annotation was computed. [2022-07-21 05:01:35,076 INFO L899 garLoopResultBuilder]: For program point L76(lines 76 80) no Hoare annotation was computed. [2022-07-21 05:01:35,076 INFO L895 garLoopResultBuilder]: At program point L452(lines 448 454) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-07-21 05:01:35,076 INFO L899 garLoopResultBuilder]: For program point L337-1(lines 333 344) no Hoare annotation was computed. [2022-07-21 05:01:35,076 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 333 344) no Hoare annotation was computed. [2022-07-21 05:01:35,076 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 333 344) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (= |old(~waterLevel~0)| ~waterLevel~0) (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (= ~waterLevel~0 1)))) [2022-07-21 05:01:35,078 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-07-21 05:01:35,079 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 05:01:35,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 05:01:35 BoogieIcfgContainer [2022-07-21 05:01:35,093 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 05:01:35,094 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 05:01:35,094 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 05:01:35,094 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 05:01:35,094 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:01:32" (3/4) ... [2022-07-21 05:01:35,096 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-21 05:01:35,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-07-21 05:01:35,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-07-21 05:01:35,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-07-21 05:01:35,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-07-21 05:01:35,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-07-21 05:01:35,104 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2022-07-21 05:01:35,104 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-07-21 05:01:35,104 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-21 05:01:35,104 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-21 05:01:35,105 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-21 05:01:35,105 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-21 05:01:35,105 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-21 05:01:35,119 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1 [2022-07-21 05:01:35,119 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && \result == systemActive) && waterLevel == 1) && waterLevel == tmp) && tmp == systemActive [2022-07-21 05:01:35,120 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((pumpRunning == 0 && 2 <= waterLevel) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && tmp == systemActive) || (((((pumpRunning == 0 && \result == systemActive) && splverifierCounter == 0) && waterLevel == 1) && waterLevel == tmp) && tmp == systemActive) [2022-07-21 05:01:35,120 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel)) [2022-07-21 05:01:35,120 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (pumpRunning == 0 && waterLevel == 1)) [2022-07-21 05:01:35,120 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((pumpRunning == 0 && 2 <= waterLevel) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && tmp == systemActive) || (((((pumpRunning == 0 && \result == systemActive) && splverifierCounter == 0) && waterLevel == 1) && waterLevel == tmp) && tmp == systemActive) [2022-07-21 05:01:35,121 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((pumpRunning == 0 && !(\result == 0)) && waterLevel == 1)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && !(\result == 0)) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) [2022-07-21 05:01:35,121 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (((pumpRunning == 0 && !(tmp == 0)) && !(\result == 0)) && waterLevel == 1)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (((pumpRunning == 0 && !(tmp == 0)) && !(\result == 0)) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) [2022-07-21 05:01:35,121 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel)) [2022-07-21 05:01:35,121 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel)) [2022-07-21 05:01:35,121 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel)) [2022-07-21 05:01:35,121 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel)) [2022-07-21 05:01:35,121 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel)) [2022-07-21 05:01:35,133 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-21 05:01:35,133 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 05:01:35,134 INFO L158 Benchmark]: Toolchain (without parser) took 3381.95ms. Allocated memory was 54.5MB in the beginning and 83.9MB in the end (delta: 29.4MB). Free memory was 31.8MB in the beginning and 39.7MB in the end (delta: -7.9MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2022-07-21 05:01:35,134 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 54.5MB. Free memory was 35.9MB in the beginning and 35.9MB in the end (delta: 44.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 05:01:35,135 INFO L158 Benchmark]: CACSL2BoogieTranslator took 390.78ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 31.6MB in the beginning and 44.2MB in the end (delta: -12.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-21 05:01:35,135 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.33ms. Allocated memory is still 69.2MB. Free memory was 44.0MB in the beginning and 41.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 05:01:35,135 INFO L158 Benchmark]: Boogie Preprocessor took 16.23ms. Allocated memory is still 69.2MB. Free memory was 41.8MB in the beginning and 40.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 05:01:35,137 INFO L158 Benchmark]: RCFGBuilder took 401.20ms. Allocated memory is still 69.2MB. Free memory was 40.2MB in the beginning and 42.5MB in the end (delta: -2.2MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2022-07-21 05:01:35,137 INFO L158 Benchmark]: TraceAbstraction took 2476.28ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 41.7MB in the beginning and 44.5MB in the end (delta: -2.8MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2022-07-21 05:01:35,137 INFO L158 Benchmark]: Witness Printer took 39.99ms. Allocated memory is still 83.9MB. Free memory was 44.5MB in the beginning and 39.7MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-21 05:01:35,139 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 54.5MB. Free memory was 35.9MB in the beginning and 35.9MB in the end (delta: 44.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 390.78ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 31.6MB in the beginning and 44.2MB in the end (delta: -12.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.33ms. Allocated memory is still 69.2MB. Free memory was 44.0MB in the beginning and 41.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.23ms. Allocated memory is still 69.2MB. Free memory was 41.8MB in the beginning and 40.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 401.20ms. Allocated memory is still 69.2MB. Free memory was 40.2MB in the beginning and 42.5MB in the end (delta: -2.2MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2476.28ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 41.7MB in the beginning and 44.5MB in the end (delta: -2.8MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. * Witness Printer took 39.99ms. Allocated memory is still 83.9MB. Free memory was 44.5MB in the beginning and 39.7MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 54]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 425 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 422 mSDsluCounter, 1145 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 755 mSDsCounter, 85 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 308 IncrementalHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 85 mSolverCounterUnsat, 390 mSDtfsCounter, 308 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 176 GetRequests, 137 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=129occurred in iteration=4, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 33 LocationsWithAnnotation, 227 PreInvPairs, 249 NumberOfFragments, 608 HoareAnnotationTreeSize, 227 FomulaSimplifications, 104 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 33 FomulaSimplificationsInter, 469 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 248 NumberOfCodeBlocks, 248 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 301 ConstructedInterpolants, 0 QuantifiedInterpolants, 793 SizeOfPredicates, 0 NumberOfNonLiveVariables, 378 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 66/72 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: 74]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0 && 2 <= waterLevel) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && tmp == systemActive) || (((((pumpRunning == 0 && \result == systemActive) && splverifierCounter == 0) && waterLevel == 1) && waterLevel == tmp) && tmp == systemActive) - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 910]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 455]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 448]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 893]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && \result == systemActive) && waterLevel == 1) && waterLevel == tmp) && tmp == systemActive - InvariantResult [Line: 290]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel)) - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0 && 2 <= waterLevel) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && tmp == systemActive) || (((((pumpRunning == 0 && \result == systemActive) && splverifierCounter == 0) && waterLevel == 1) && waterLevel == tmp) && tmp == systemActive) - InvariantResult [Line: 226]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel)) - InvariantResult [Line: 900]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 408]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (((pumpRunning == 0 && !(tmp == 0)) && !(\result == 0)) && waterLevel == 1)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (((pumpRunning == 0 && !(tmp == 0)) && !(\result == 0)) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 389]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((pumpRunning == 0 && !(\result == 0)) && waterLevel == 1)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && !(\result == 0)) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel)) - InvariantResult [Line: 462]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1 - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (pumpRunning == 0 && waterLevel == 1)) - InvariantResult [Line: 398]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel)) - InvariantResult [Line: 245]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel)) - InvariantResult [Line: 73]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 839]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 321]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel)) - InvariantResult [Line: 849]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-07-21 05:01:35,199 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