./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 6c24879c 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-?-6c24879 [2022-07-12 06:19:57,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 06:19:57,591 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 06:19:57,626 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 06:19:57,627 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 06:19:57,628 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 06:19:57,629 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 06:19:57,630 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 06:19:57,631 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 06:19:57,632 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 06:19:57,633 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 06:19:57,633 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 06:19:57,634 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 06:19:57,634 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 06:19:57,635 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 06:19:57,636 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 06:19:57,637 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 06:19:57,638 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 06:19:57,639 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 06:19:57,640 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 06:19:57,641 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 06:19:57,642 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 06:19:57,643 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 06:19:57,643 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 06:19:57,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 06:19:57,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 06:19:57,646 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 06:19:57,646 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 06:19:57,647 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 06:19:57,647 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 06:19:57,648 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 06:19:57,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 06:19:57,650 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 06:19:57,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 06:19:57,651 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 06:19:57,652 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 06:19:57,654 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 06:19:57,655 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 06:19:57,655 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 06:19:57,655 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 06:19:57,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 06:19:57,656 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 06:19:57,658 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 06:19:57,681 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 06:19:57,683 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 06:19:57,684 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 06:19:57,684 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 06:19:57,684 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 06:19:57,685 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 06:19:57,685 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 06:19:57,685 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 06:19:57,685 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 06:19:57,686 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 06:19:57,686 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 06:19:57,686 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 06:19:57,686 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 06:19:57,687 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 06:19:57,687 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 06:19:57,687 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 06:19:57,687 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 06:19:57,687 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 06:19:57,687 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 06:19:57,687 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 06:19:57,688 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 06:19:57,688 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 06:19:57,688 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 06:19:57,688 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 06:19:57,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 06:19:57,689 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 06:19:57,689 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 06:19:57,689 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 06:19:57,689 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 06:19:57,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 06:19:57,689 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 06:19:57,689 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 06:19:57,690 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 06:19:57,690 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d0674916b73dbf2024f3c8466ce9ed88de71a9608fd9c94d283a7055c71f71f [2022-07-12 06:19:57,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 06:19:57,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 06:19:57,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 06:19:57,899 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 06:19:57,899 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 06:19:57,900 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product26.cil.c [2022-07-12 06:19:57,959 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eacfaf2b8/9847e1fb1664481cbe9a5939a67d7a29/FLAG8e6823d7e [2022-07-12 06:19:58,341 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 06:19:58,341 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product26.cil.c [2022-07-12 06:19:58,356 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eacfaf2b8/9847e1fb1664481cbe9a5939a67d7a29/FLAG8e6823d7e [2022-07-12 06:19:58,369 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eacfaf2b8/9847e1fb1664481cbe9a5939a67d7a29 [2022-07-12 06:19:58,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 06:19:58,372 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 06:19:58,375 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 06:19:58,375 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 06:19:58,377 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 06:19:58,378 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 06:19:58" (1/1) ... [2022-07-12 06:19:58,378 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e9fad96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:58, skipping insertion in model container [2022-07-12 06:19:58,379 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 06:19:58" (1/1) ... [2022-07-12 06:19:58,383 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 06:19:58,429 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 06:19:58,603 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] [2022-07-12 06:19:58,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 06:19:58,724 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 06:19:58,732 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] [2022-07-12 06:19:58,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 06:19:58,808 INFO L208 MainTranslator]: Completed translation [2022-07-12 06:19:58,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:58 WrapperNode [2022-07-12 06:19:58,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 06:19:58,809 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 06:19:58,809 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 06:19:58,809 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 06:19:58,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:58" (1/1) ... [2022-07-12 06:19:58,832 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:58" (1/1) ... [2022-07-12 06:19:58,854 INFO L137 Inliner]: procedures = 54, calls = 152, calls flagged for inlining = 24, calls inlined = 18, statements flattened = 222 [2022-07-12 06:19:58,855 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 06:19:58,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 06:19:58,856 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 06:19:58,856 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 06:19:58,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:58" (1/1) ... [2022-07-12 06:19:58,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:58" (1/1) ... [2022-07-12 06:19:58,870 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:58" (1/1) ... [2022-07-12 06:19:58,870 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:58" (1/1) ... [2022-07-12 06:19:58,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:58" (1/1) ... [2022-07-12 06:19:58,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:58" (1/1) ... [2022-07-12 06:19:58,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:58" (1/1) ... [2022-07-12 06:19:58,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 06:19:58,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 06:19:58,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 06:19:58,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 06:19:58,880 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:58" (1/1) ... [2022-07-12 06:19:58,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 06:19:58,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:19:58,905 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) [2022-07-12 06:19:58,921 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 [2022-07-12 06:19:58,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 06:19:58,939 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-12 06:19:58,939 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-12 06:19:58,939 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-12 06:19:58,939 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-12 06:19:58,939 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-12 06:19:58,940 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-12 06:19:58,940 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-12 06:19:58,940 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-12 06:19:58,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 06:19:58,940 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-12 06:19:58,940 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-12 06:19:58,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 06:19:58,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 06:19:59,002 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 06:19:59,004 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 06:19:59,233 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 06:19:59,247 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 06:19:59,247 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-12 06:19:59,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:19:59 BoogieIcfgContainer [2022-07-12 06:19:59,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 06:19:59,250 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 06:19:59,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 06:19:59,253 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 06:19:59,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 06:19:58" (1/3) ... [2022-07-12 06:19:59,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@781a0b2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 06:19:59, skipping insertion in model container [2022-07-12 06:19:59,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:58" (2/3) ... [2022-07-12 06:19:59,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@781a0b2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 06:19:59, skipping insertion in model container [2022-07-12 06:19:59,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:19:59" (3/3) ... [2022-07-12 06:19:59,255 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product26.cil.c [2022-07-12 06:19:59,276 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 06:19:59,276 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 06:19:59,357 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 06:19:59,363 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@730a00ab, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@712c7bae [2022-07-12 06:19:59,364 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 06:19:59,373 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) [2022-07-12 06:19:59,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-12 06:19:59,384 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:19:59,385 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:19:59,385 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:19:59,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:19:59,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1610382818, now seen corresponding path program 1 times [2022-07-12 06:19:59,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:19:59,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815928801] [2022-07-12 06:19:59,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:19:59,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:19:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:59,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:19:59,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:19:59,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815928801] [2022-07-12 06:19:59,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815928801] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:19:59,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:19:59,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 06:19:59,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118238469] [2022-07-12 06:19:59,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:19:59,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 06:19:59,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:19:59,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 06:19:59,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 06:19:59,631 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) [2022-07-12 06:19:59,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:19:59,670 INFO L93 Difference]: Finished difference Result 132 states and 181 transitions. [2022-07-12 06:19:59,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 06:19:59,672 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 [2022-07-12 06:19:59,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:19:59,677 INFO L225 Difference]: With dead ends: 132 [2022-07-12 06:19:59,677 INFO L226 Difference]: Without dead ends: 61 [2022-07-12 06:19:59,680 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 [2022-07-12 06:19:59,686 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 [2022-07-12 06:19:59,687 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] [2022-07-12 06:19:59,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-07-12 06:19:59,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-07-12 06:19:59,725 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) [2022-07-12 06:19:59,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 78 transitions. [2022-07-12 06:19:59,731 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 78 transitions. Word has length 19 [2022-07-12 06:19:59,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:19:59,731 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 78 transitions. [2022-07-12 06:19:59,732 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) [2022-07-12 06:19:59,732 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 78 transitions. [2022-07-12 06:19:59,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-12 06:19:59,735 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:19:59,736 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] [2022-07-12 06:19:59,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 06:19:59,736 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:19:59,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:19:59,738 INFO L85 PathProgramCache]: Analyzing trace with hash 2007451734, now seen corresponding path program 1 times [2022-07-12 06:19:59,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:19:59,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422738331] [2022-07-12 06:19:59,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:19:59,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:19:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:59,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:19:59,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:19:59,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422738331] [2022-07-12 06:19:59,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422738331] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:19:59,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:19:59,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 06:19:59,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475729663] [2022-07-12 06:19:59,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:19:59,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 06:19:59,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:19:59,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 06:19:59,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 06:19:59,880 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) [2022-07-12 06:19:59,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:19:59,913 INFO L93 Difference]: Finished difference Result 87 states and 111 transitions. [2022-07-12 06:19:59,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 06:19:59,914 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 [2022-07-12 06:19:59,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:19:59,916 INFO L225 Difference]: With dead ends: 87 [2022-07-12 06:19:59,916 INFO L226 Difference]: Without dead ends: 52 [2022-07-12 06:19:59,919 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 [2022-07-12 06:19:59,920 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 [2022-07-12 06:19:59,921 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] [2022-07-12 06:19:59,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-07-12 06:19:59,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-07-12 06:19:59,932 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) [2022-07-12 06:19:59,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 66 transitions. [2022-07-12 06:19:59,935 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 66 transitions. Word has length 20 [2022-07-12 06:19:59,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:19:59,936 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 66 transitions. [2022-07-12 06:19:59,936 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) [2022-07-12 06:19:59,937 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 66 transitions. [2022-07-12 06:19:59,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-12 06:19:59,937 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:19:59,940 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] [2022-07-12 06:19:59,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 06:19:59,940 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:19:59,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:19:59,941 INFO L85 PathProgramCache]: Analyzing trace with hash -262713576, now seen corresponding path program 1 times [2022-07-12 06:19:59,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:19:59,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330895571] [2022-07-12 06:19:59,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:19:59,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:19:59,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:00,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:20:00,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:20:00,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330895571] [2022-07-12 06:20:00,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330895571] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:20:00,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:20:00,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 06:20:00,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740613274] [2022-07-12 06:20:00,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:20:00,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 06:20:00,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:20:00,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 06:20:00,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 06:20:00,056 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) [2022-07-12 06:20:00,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:20:00,130 INFO L93 Difference]: Finished difference Result 97 states and 126 transitions. [2022-07-12 06:20:00,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 06:20:00,131 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 [2022-07-12 06:20:00,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:20:00,132 INFO L225 Difference]: With dead ends: 97 [2022-07-12 06:20:00,133 INFO L226 Difference]: Without dead ends: 52 [2022-07-12 06:20:00,133 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 [2022-07-12 06:20:00,134 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, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 06:20:00,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 129 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 06:20:00,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-07-12 06:20:00,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-07-12 06:20:00,139 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) [2022-07-12 06:20:00,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 65 transitions. [2022-07-12 06:20:00,140 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 65 transitions. Word has length 25 [2022-07-12 06:20:00,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:20:00,141 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 65 transitions. [2022-07-12 06:20:00,141 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) [2022-07-12 06:20:00,141 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 65 transitions. [2022-07-12 06:20:00,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-12 06:20:00,142 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:20:00,142 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] [2022-07-12 06:20:00,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 06:20:00,143 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:20:00,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:20:00,164 INFO L85 PathProgramCache]: Analyzing trace with hash -678572638, now seen corresponding path program 1 times [2022-07-12 06:20:00,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:20:00,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604740402] [2022-07-12 06:20:00,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:20:00,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:20:00,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:00,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 06:20:00,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:00,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:20:00,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:20:00,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604740402] [2022-07-12 06:20:00,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604740402] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:20:00,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:20:00,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 06:20:00,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708686788] [2022-07-12 06:20:00,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:20:00,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 06:20:00,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:20:00,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 06:20:00,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-12 06:20:00,256 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) [2022-07-12 06:20:00,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:20:00,406 INFO L93 Difference]: Finished difference Result 179 states and 241 transitions. [2022-07-12 06:20:00,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 06:20:00,406 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 [2022-07-12 06:20:00,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:20:00,408 INFO L225 Difference]: With dead ends: 179 [2022-07-12 06:20:00,408 INFO L226 Difference]: Without dead ends: 134 [2022-07-12 06:20:00,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2022-07-12 06:20:00,410 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 [2022-07-12 06:20:00,411 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] [2022-07-12 06:20:00,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-07-12 06:20:00,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 129. [2022-07-12 06:20:00,422 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) [2022-07-12 06:20:00,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 166 transitions. [2022-07-12 06:20:00,423 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 166 transitions. Word has length 30 [2022-07-12 06:20:00,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:20:00,423 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 166 transitions. [2022-07-12 06:20:00,424 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) [2022-07-12 06:20:00,424 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 166 transitions. [2022-07-12 06:20:00,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-12 06:20:00,425 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:20:00,425 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] [2022-07-12 06:20:00,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 06:20:00,425 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:20:00,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:20:00,426 INFO L85 PathProgramCache]: Analyzing trace with hash -186593091, now seen corresponding path program 1 times [2022-07-12 06:20:00,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:20:00,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202326826] [2022-07-12 06:20:00,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:20:00,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:20:00,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:00,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 06:20:00,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:00,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:20:00,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:20:00,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202326826] [2022-07-12 06:20:00,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202326826] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:20:00,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:20:00,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 06:20:00,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142935313] [2022-07-12 06:20:00,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:20:00,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 06:20:00,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:20:00,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 06:20:00,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 06:20:00,454 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) [2022-07-12 06:20:00,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:20:00,462 INFO L93 Difference]: Finished difference Result 225 states and 291 transitions. [2022-07-12 06:20:00,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 06:20:00,463 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 [2022-07-12 06:20:00,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:20:00,463 INFO L225 Difference]: With dead ends: 225 [2022-07-12 06:20:00,464 INFO L226 Difference]: Without dead ends: 103 [2022-07-12 06:20:00,464 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 [2022-07-12 06:20:00,465 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 [2022-07-12 06:20:00,465 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] [2022-07-12 06:20:00,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-07-12 06:20:00,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2022-07-12 06:20:00,472 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) [2022-07-12 06:20:00,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 121 transitions. [2022-07-12 06:20:00,473 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 121 transitions. Word has length 32 [2022-07-12 06:20:00,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:20:00,473 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 121 transitions. [2022-07-12 06:20:00,473 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) [2022-07-12 06:20:00,473 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 121 transitions. [2022-07-12 06:20:00,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-07-12 06:20:00,474 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:20:00,475 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] [2022-07-12 06:20:00,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 06:20:00,475 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:20:00,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:20:00,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1947547759, now seen corresponding path program 1 times [2022-07-12 06:20:00,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:20:00,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549835702] [2022-07-12 06:20:00,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:20:00,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:20:00,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:00,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 06:20:00,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:00,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 06:20:00,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:00,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 06:20:00,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:00,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 06:20:00,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:00,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 06:20:00,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:00,543 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-12 06:20:00,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:20:00,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549835702] [2022-07-12 06:20:00,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549835702] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 06:20:00,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528384163] [2022-07-12 06:20:00,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:20:00,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 06:20:00,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:20:00,582 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) [2022-07-12 06:20:00,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-12 06:20:00,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:00,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 06:20:00,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 06:20:00,804 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-12 06:20:00,805 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 06:20:01,051 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-12 06:20:01,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528384163] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 06:20:01,053 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-12 06:20:01,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 15 [2022-07-12 06:20:01,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37683114] [2022-07-12 06:20:01,053 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-12 06:20:01,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-12 06:20:01,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:20:01,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-12 06:20:01,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2022-07-12 06:20:01,056 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) [2022-07-12 06:20:01,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:20:01,204 INFO L93 Difference]: Finished difference Result 137 states and 161 transitions. [2022-07-12 06:20:01,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 06:20:01,205 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 [2022-07-12 06:20:01,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:20:01,205 INFO L225 Difference]: With dead ends: 137 [2022-07-12 06:20:01,205 INFO L226 Difference]: Without dead ends: 0 [2022-07-12 06:20:01,206 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 [2022-07-12 06:20:01,207 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 [2022-07-12 06:20:01,207 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] [2022-07-12 06:20:01,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-12 06:20:01,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-12 06:20:01,208 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) [2022-07-12 06:20:01,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-12 06:20:01,208 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2022-07-12 06:20:01,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:20:01,208 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-12 06:20:01,209 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) [2022-07-12 06:20:01,209 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-12 06:20:01,209 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-12 06:20:01,211 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 06:20:01,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-12 06:20:01,425 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 [2022-07-12 06:20:01,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-12 06:20:02,102 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 167 173) no Hoare annotation was computed. [2022-07-12 06:20:02,103 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 167 173) the Hoare annotation is: true [2022-07-12 06:20:02,103 INFO L899 garLoopResultBuilder]: For program point L349-1(lines 345 356) no Hoare annotation was computed. [2022-07-12 06:20:02,103 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 345 356) the Hoare annotation is: true [2022-07-12 06:20:02,103 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 345 356) no Hoare annotation was computed. [2022-07-12 06:20:02,103 INFO L902 garLoopResultBuilder]: At program point L864(lines 839 868) the Hoare annotation is: true [2022-07-12 06:20:02,103 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 839 868) no Hoare annotation was computed. [2022-07-12 06:20:02,103 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 839 868) the Hoare annotation is: true [2022-07-12 06:20:02,103 INFO L899 garLoopResultBuilder]: For program point L860(line 860) no Hoare annotation was computed. [2022-07-12 06:20:02,103 INFO L899 garLoopResultBuilder]: For program point L853(lines 853 857) no Hoare annotation was computed. [2022-07-12 06:20:02,103 INFO L902 garLoopResultBuilder]: At program point L853-1(lines 853 857) the Hoare annotation is: true [2022-07-12 06:20:02,103 INFO L899 garLoopResultBuilder]: For program point L850(line 850) no Hoare annotation was computed. [2022-07-12 06:20:02,103 INFO L902 garLoopResultBuilder]: At program point L849-2(lines 849 863) the Hoare annotation is: true [2022-07-12 06:20:02,104 INFO L902 garLoopResultBuilder]: At program point L845(line 845) the Hoare annotation is: true [2022-07-12 06:20:02,104 INFO L899 garLoopResultBuilder]: For program point L845-1(line 845) no Hoare annotation was computed. [2022-07-12 06:20:02,104 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)|))) [2022-07-12 06:20:02,104 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)|))) [2022-07-12 06:20:02,105 INFO L899 garLoopResultBuilder]: For program point L147-1(lines 146 165) no Hoare annotation was computed. [2022-07-12 06:20:02,105 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 143 166) no Hoare annotation was computed. [2022-07-12 06:20:02,105 INFO L899 garLoopResultBuilder]: For program point L325(lines 325 329) no Hoare annotation was computed. [2022-07-12 06:20:02,105 INFO L899 garLoopResultBuilder]: For program point L420(lines 420 426) no Hoare annotation was computed. [2022-07-12 06:20:02,105 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)|))) [2022-07-12 06:20:02,105 INFO L899 garLoopResultBuilder]: For program point L416(lines 416 429) no Hoare annotation was computed. [2022-07-12 06:20:02,106 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)|))))) [2022-07-12 06:20:02,106 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)|))) [2022-07-12 06:20:02,106 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)|))) [2022-07-12 06:20:02,106 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)|))) [2022-07-12 06:20:02,106 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))))) [2022-07-12 06:20:02,106 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))))) [2022-07-12 06:20:02,106 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2022-07-12 06:20:02,106 INFO L899 garLoopResultBuilder]: For program point L154-1(lines 154 160) no Hoare annotation was computed. [2022-07-12 06:20:02,106 INFO L899 garLoopResultBuilder]: For program point L183(lines 183 191) no Hoare annotation was computed. [2022-07-12 06:20:02,106 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)|))) [2022-07-12 06:20:02,106 INFO L899 garLoopResultBuilder]: For program point L179(lines 179 196) no Hoare annotation was computed. [2022-07-12 06:20:02,106 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))))) [2022-07-12 06:20:02,106 INFO L899 garLoopResultBuilder]: For program point L299(lines 299 303) no Hoare annotation was computed. [2022-07-12 06:20:02,106 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 143 166) no Hoare annotation was computed. [2022-07-12 06:20:02,106 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)|))))) [2022-07-12 06:20:02,107 INFO L899 garLoopResultBuilder]: For program point L299-2(lines 299 303) no Hoare annotation was computed. [2022-07-12 06:20:02,107 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2022-07-12 06:20:02,107 INFO L895 garLoopResultBuilder]: At program point L122(lines 73 123) the Hoare annotation is: false [2022-07-12 06:20:02,107 INFO L902 garLoopResultBuilder]: At program point L907(lines 900 909) the Hoare annotation is: true [2022-07-12 06:20:02,107 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-12 06:20:02,107 INFO L899 garLoopResultBuilder]: For program point L94(lines 94 100) no Hoare annotation was computed. [2022-07-12 06:20:02,107 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-12 06:20:02,107 INFO L899 garLoopResultBuilder]: For program point L94-1(lines 94 100) no Hoare annotation was computed. [2022-07-12 06:20:02,107 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-12 06:20:02,107 INFO L899 garLoopResultBuilder]: For program point L920(lines 920 927) no Hoare annotation was computed. [2022-07-12 06:20:02,107 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))) [2022-07-12 06:20:02,107 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))) [2022-07-12 06:20:02,107 INFO L899 garLoopResultBuilder]: For program point L920-2(lines 920 927) no Hoare annotation was computed. [2022-07-12 06:20:02,107 INFO L902 garLoopResultBuilder]: At program point L929(lines 910 932) the Hoare annotation is: true [2022-07-12 06:20:02,107 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-12 06:20:02,108 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))) [2022-07-12 06:20:02,108 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)) [2022-07-12 06:20:02,108 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 116) no Hoare annotation was computed. [2022-07-12 06:20:02,108 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))) [2022-07-12 06:20:02,108 INFO L895 garLoopResultBuilder]: At program point L459(lines 455 461) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-07-12 06:20:02,108 INFO L899 garLoopResultBuilder]: For program point L75(lines 74 121) no Hoare annotation was computed. [2022-07-12 06:20:02,108 INFO L899 garLoopResultBuilder]: For program point L104(lines 104 117) no Hoare annotation was computed. [2022-07-12 06:20:02,108 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)) [2022-07-12 06:20:02,108 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))) [2022-07-12 06:20:02,108 INFO L902 garLoopResultBuilder]: At program point L125(lines 64 129) the Hoare annotation is: true [2022-07-12 06:20:02,108 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 90) no Hoare annotation was computed. [2022-07-12 06:20:02,108 INFO L899 garLoopResultBuilder]: For program point L84-1(lines 84 90) no Hoare annotation was computed. [2022-07-12 06:20:02,108 INFO L899 garLoopResultBuilder]: For program point L76(lines 76 80) no Hoare annotation was computed. [2022-07-12 06:20:02,109 INFO L895 garLoopResultBuilder]: At program point L452(lines 448 454) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-07-12 06:20:02,109 INFO L899 garLoopResultBuilder]: For program point L337-1(lines 333 344) no Hoare annotation was computed. [2022-07-12 06:20:02,109 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 333 344) no Hoare annotation was computed. [2022-07-12 06:20:02,109 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)))) [2022-07-12 06:20:02,115 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-07-12 06:20:02,117 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 06:20:02,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 06:20:02 BoogieIcfgContainer [2022-07-12 06:20:02,153 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 06:20:02,154 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 06:20:02,154 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 06:20:02,154 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 06:20:02,155 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:19:59" (3/4) ... [2022-07-12 06:20:02,157 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-12 06:20:02,161 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-07-12 06:20:02,161 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-07-12 06:20:02,161 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-07-12 06:20:02,161 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-07-12 06:20:02,162 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-07-12 06:20:02,167 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2022-07-12 06:20:02,167 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-07-12 06:20:02,167 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-12 06:20:02,168 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-12 06:20:02,168 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-12 06:20:02,168 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-12 06:20:02,168 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-12 06:20:02,184 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1 [2022-07-12 06:20:02,184 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && \result == systemActive) && waterLevel == 1) && waterLevel == tmp) && tmp == systemActive [2022-07-12 06:20:02,184 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) [2022-07-12 06:20:02,185 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel)) [2022-07-12 06:20:02,185 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)) [2022-07-12 06:20:02,185 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) [2022-07-12 06:20:02,185 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))) [2022-07-12 06:20:02,186 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))) [2022-07-12 06:20:02,186 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel)) [2022-07-12 06:20:02,186 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel)) [2022-07-12 06:20:02,186 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel)) [2022-07-12 06:20:02,187 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel)) [2022-07-12 06:20:02,187 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel)) [2022-07-12 06:20:02,199 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-12 06:20:02,199 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 06:20:02,199 INFO L158 Benchmark]: Toolchain (without parser) took 3826.92ms. Allocated memory was 121.6MB in the beginning and 184.5MB in the end (delta: 62.9MB). Free memory was 87.5MB in the beginning and 137.7MB in the end (delta: -50.2MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2022-07-12 06:20:02,200 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 81.8MB. Free memory was 37.5MB in the beginning and 37.5MB in the end (delta: 44.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 06:20:02,200 INFO L158 Benchmark]: CACSL2BoogieTranslator took 434.01ms. Allocated memory is still 121.6MB. Free memory was 87.3MB in the beginning and 87.5MB in the end (delta: -240.2kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-12 06:20:02,200 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.35ms. Allocated memory is still 121.6MB. Free memory was 87.5MB in the beginning and 85.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 06:20:02,200 INFO L158 Benchmark]: Boogie Preprocessor took 22.91ms. Allocated memory is still 121.6MB. Free memory was 85.4MB in the beginning and 83.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 06:20:02,200 INFO L158 Benchmark]: RCFGBuilder took 369.78ms. Allocated memory is still 121.6MB. Free memory was 83.7MB in the beginning and 68.6MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-12 06:20:02,201 INFO L158 Benchmark]: TraceAbstraction took 2903.20ms. Allocated memory was 121.6MB in the beginning and 184.5MB in the end (delta: 62.9MB). Free memory was 68.3MB in the beginning and 142.9MB in the end (delta: -74.7MB). Peak memory consumption was 48.1MB. Max. memory is 16.1GB. [2022-07-12 06:20:02,201 INFO L158 Benchmark]: Witness Printer took 45.00ms. Allocated memory is still 184.5MB. Free memory was 142.9MB in the beginning and 137.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-12 06:20:02,202 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 81.8MB. Free memory was 37.5MB in the beginning and 37.5MB in the end (delta: 44.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 434.01ms. Allocated memory is still 121.6MB. Free memory was 87.3MB in the beginning and 87.5MB in the end (delta: -240.2kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.35ms. Allocated memory is still 121.6MB. Free memory was 87.5MB in the beginning and 85.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.91ms. Allocated memory is still 121.6MB. Free memory was 85.4MB in the beginning and 83.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 369.78ms. Allocated memory is still 121.6MB. Free memory was 83.7MB in the beginning and 68.6MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2903.20ms. Allocated memory was 121.6MB in the beginning and 184.5MB in the end (delta: 62.9MB). Free memory was 68.3MB in the beginning and 142.9MB in the end (delta: -74.7MB). Peak memory consumption was 48.1MB. Max. memory is 16.1GB. * Witness Printer took 45.00ms. Allocated memory is still 184.5MB. Free memory was 142.9MB in the beginning and 137.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 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: 2.8s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 425 SdHoareTripleChecker+Valid, 0.2s 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, 0.2s SatisfiabilityAnalysisTime, 0.7s 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! [2022-07-12 06:20:02,280 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE