./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product09.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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_product09.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 ebd5e4db60536079e2f1ed21b8808db42225a5df1dde0ff11f7a6872cf3ec06e --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 15:08:40,773 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 15:08:40,775 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 15:08:40,801 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 15:08:40,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 15:08:40,804 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 15:08:40,806 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 15:08:40,808 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 15:08:40,809 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 15:08:40,813 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 15:08:40,814 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 15:08:40,815 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 15:08:40,815 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 15:08:40,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 15:08:40,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 15:08:40,820 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 15:08:40,821 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 15:08:40,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 15:08:40,825 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 15:08:40,826 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 15:08:40,828 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 15:08:40,829 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 15:08:40,830 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 15:08:40,831 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 15:08:40,835 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 15:08:40,835 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 15:08:40,835 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 15:08:40,837 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 15:08:40,837 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 15:08:40,837 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 15:08:40,838 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 15:08:40,839 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 15:08:40,840 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 15:08:40,840 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 15:08:40,841 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 15:08:40,841 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 15:08:40,842 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 15:08:40,842 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 15:08:40,842 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 15:08:40,843 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 15:08:40,843 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 15:08:40,844 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 15:08:40,869 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 15:08:40,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 15:08:40,871 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 15:08:40,871 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 15:08:40,872 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 15:08:40,872 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 15:08:40,872 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 15:08:40,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 15:08:40,873 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 15:08:40,873 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 15:08:40,873 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 15:08:40,873 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 15:08:40,874 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 15:08:40,874 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 15:08:40,874 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 15:08:40,874 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 15:08:40,874 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 15:08:40,874 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 15:08:40,875 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 15:08:40,875 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 15:08:40,875 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 15:08:40,875 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 15:08:40,875 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 15:08:40,875 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 15:08:40,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 15:08:40,876 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 15:08:40,876 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 15:08:40,876 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 15:08:40,876 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 15:08:40,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 15:08:40,877 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 15:08:40,877 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 15:08:40,877 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 15:08:40,877 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 15:08:40,877 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebd5e4db60536079e2f1ed21b8808db42225a5df1dde0ff11f7a6872cf3ec06e [2021-12-17 15:08:41,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 15:08:41,073 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 15:08:41,075 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 15:08:41,076 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 15:08:41,076 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 15:08:41,077 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product09.cil.c [2021-12-17 15:08:41,119 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/318293480/82481e26f0d948c9bc805c4ee0c4ad6f/FLAG2e4e41358 [2021-12-17 15:08:41,495 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 15:08:41,495 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product09.cil.c [2021-12-17 15:08:41,503 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/318293480/82481e26f0d948c9bc805c4ee0c4ad6f/FLAG2e4e41358 [2021-12-17 15:08:41,519 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/318293480/82481e26f0d948c9bc805c4ee0c4ad6f [2021-12-17 15:08:41,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 15:08:41,522 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 15:08:41,523 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 15:08:41,523 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 15:08:41,525 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 15:08:41,526 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:08:41" (1/1) ... [2021-12-17 15:08:41,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53b9baea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:41, skipping insertion in model container [2021-12-17 15:08:41,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:08:41" (1/1) ... [2021-12-17 15:08:41,537 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 15:08:41,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 15:08:41,731 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_product09.cil.c[11292,11305] [2021-12-17 15:08:41,774 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 15:08:41,793 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 15:08:41,824 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_product09.cil.c[11292,11305] [2021-12-17 15:08:41,839 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 15:08:41,850 INFO L208 MainTranslator]: Completed translation [2021-12-17 15:08:41,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:41 WrapperNode [2021-12-17 15:08:41,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 15:08:41,853 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 15:08:41,853 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 15:08:41,853 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 15:08:41,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:41" (1/1) ... [2021-12-17 15:08:41,873 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:41" (1/1) ... [2021-12-17 15:08:41,893 INFO L137 Inliner]: procedures = 50, calls = 146, calls flagged for inlining = 20, calls inlined = 14, statements flattened = 186 [2021-12-17 15:08:41,894 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 15:08:41,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 15:08:41,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 15:08:41,894 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 15:08:41,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:41" (1/1) ... [2021-12-17 15:08:41,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:41" (1/1) ... [2021-12-17 15:08:41,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:41" (1/1) ... [2021-12-17 15:08:41,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:41" (1/1) ... [2021-12-17 15:08:41,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:41" (1/1) ... [2021-12-17 15:08:41,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:41" (1/1) ... [2021-12-17 15:08:41,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:41" (1/1) ... [2021-12-17 15:08:41,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 15:08:41,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 15:08:41,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 15:08:41,922 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 15:08:41,923 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:41" (1/1) ... [2021-12-17 15:08:41,939 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 15:08:41,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:08:41,961 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-17 15:08:41,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-17 15:08:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 15:08:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-17 15:08:42,004 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-17 15:08:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-17 15:08:42,004 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-17 15:08:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-17 15:08:42,005 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-17 15:08:42,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 15:08:42,005 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-17 15:08:42,005 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-17 15:08:42,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 15:08:42,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 15:08:42,078 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 15:08:42,079 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 15:08:42,254 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 15:08:42,259 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 15:08:42,261 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-17 15:08:42,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:08:42 BoogieIcfgContainer [2021-12-17 15:08:42,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 15:08:42,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 15:08:42,265 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 15:08:42,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 15:08:42,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 03:08:41" (1/3) ... [2021-12-17 15:08:42,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eb8fdae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:08:42, skipping insertion in model container [2021-12-17 15:08:42,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:41" (2/3) ... [2021-12-17 15:08:42,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eb8fdae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:08:42, skipping insertion in model container [2021-12-17 15:08:42,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:08:42" (3/3) ... [2021-12-17 15:08:42,269 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product09.cil.c [2021-12-17 15:08:42,273 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 15:08:42,273 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 15:08:42,311 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 15:08:42,315 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-17 15:08:42,316 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 15:08:42,328 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 46 states have (on average 1.4130434782608696) internal successors, (65), 50 states have internal predecessors, (65), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-12-17 15:08:42,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-17 15:08:42,336 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:42,337 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:08:42,338 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:42,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:42,341 INFO L85 PathProgramCache]: Analyzing trace with hash 801230020, now seen corresponding path program 1 times [2021-12-17 15:08:42,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:42,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697829267] [2021-12-17 15:08:42,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:42,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:42,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:42,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:08:42,500 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:42,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697829267] [2021-12-17 15:08:42,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697829267] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:42,501 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:42,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 15:08:42,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784491951] [2021-12-17 15:08:42,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:42,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 15:08:42,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:42,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 15:08:42,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 15:08:42,534 INFO L87 Difference]: Start difference. First operand has 58 states, 46 states have (on average 1.4130434782608696) internal successors, (65), 50 states have internal predecessors, (65), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 15:08:42,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:42,562 INFO L93 Difference]: Finished difference Result 108 states and 149 transitions. [2021-12-17 15:08:42,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 15:08:42,564 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-12-17 15:08:42,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:42,570 INFO L225 Difference]: With dead ends: 108 [2021-12-17 15:08:42,570 INFO L226 Difference]: Without dead ends: 49 [2021-12-17 15:08:42,574 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 15:08:42,576 INFO L933 BasicCegarLoop]: 71 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, 71 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:42,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:08:42,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-12-17 15:08:42,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-12-17 15:08:42,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 42 states have internal predecessors, (51), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-17 15:08:42,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 62 transitions. [2021-12-17 15:08:42,622 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 62 transitions. Word has length 19 [2021-12-17 15:08:42,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:42,623 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 62 transitions. [2021-12-17 15:08:42,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 15:08:42,623 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 62 transitions. [2021-12-17 15:08:42,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-12-17 15:08:42,625 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:42,626 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:08:42,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 15:08:42,627 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:42,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:42,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1313726312, now seen corresponding path program 1 times [2021-12-17 15:08:42,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:42,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172092063] [2021-12-17 15:08:42,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:42,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:42,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:42,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:08:42,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:42,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172092063] [2021-12-17 15:08:42,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172092063] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:42,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:42,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 15:08:42,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441331238] [2021-12-17 15:08:42,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:42,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 15:08:42,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:42,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 15:08:42,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:08:42,722 INFO L87 Difference]: Start difference. First operand 49 states and 62 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 15:08:42,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:42,731 INFO L93 Difference]: Finished difference Result 64 states and 80 transitions. [2021-12-17 15:08:42,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 15:08:42,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-12-17 15:08:42,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:42,733 INFO L225 Difference]: With dead ends: 64 [2021-12-17 15:08:42,734 INFO L226 Difference]: Without dead ends: 40 [2021-12-17 15:08:42,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:08:42,736 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 12 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:42,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 82 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:08:42,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-12-17 15:08:42,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-12-17 15:08:42,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 36 states have internal predecessors, (44), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-17 15:08:42,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 50 transitions. [2021-12-17 15:08:42,744 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 50 transitions. Word has length 20 [2021-12-17 15:08:42,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:42,746 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 50 transitions. [2021-12-17 15:08:42,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 15:08:42,747 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 50 transitions. [2021-12-17 15:08:42,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-17 15:08:42,748 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:42,748 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:08:42,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 15:08:42,749 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:42,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:42,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1888867153, now seen corresponding path program 1 times [2021-12-17 15:08:42,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:42,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690237776] [2021-12-17 15:08:42,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:42,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:42,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:42,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:08:42,817 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:42,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690237776] [2021-12-17 15:08:42,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690237776] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:42,818 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:42,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 15:08:42,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011674291] [2021-12-17 15:08:42,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:42,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 15:08:42,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:42,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 15:08:42,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:08:42,820 INFO L87 Difference]: Start difference. First operand 40 states and 50 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 15:08:42,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:42,826 INFO L93 Difference]: Finished difference Result 73 states and 94 transitions. [2021-12-17 15:08:42,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 15:08:42,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-12-17 15:08:42,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:42,827 INFO L225 Difference]: With dead ends: 73 [2021-12-17 15:08:42,827 INFO L226 Difference]: Without dead ends: 40 [2021-12-17 15:08:42,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:08:42,828 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 32 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:42,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 48 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:08:42,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-12-17 15:08:42,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-12-17 15:08:42,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 33 states have (on average 1.303030303030303) internal successors, (43), 36 states have internal predecessors, (43), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-17 15:08:42,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 49 transitions. [2021-12-17 15:08:42,837 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 49 transitions. Word has length 24 [2021-12-17 15:08:42,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:42,838 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 49 transitions. [2021-12-17 15:08:42,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 15:08:42,838 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 49 transitions. [2021-12-17 15:08:42,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-17 15:08:42,839 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:42,839 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:08:42,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-17 15:08:42,840 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:42,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:42,841 INFO L85 PathProgramCache]: Analyzing trace with hash -416752396, now seen corresponding path program 1 times [2021-12-17 15:08:42,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:42,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351873174] [2021-12-17 15:08:42,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:42,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:42,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:42,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:08:42,908 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:42,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351873174] [2021-12-17 15:08:42,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351873174] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:42,908 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:42,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 15:08:42,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441932293] [2021-12-17 15:08:42,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:42,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 15:08:42,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:42,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 15:08:42,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 15:08:42,911 INFO L87 Difference]: Start difference. First operand 40 states and 49 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 15:08:43,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:43,061 INFO L93 Difference]: Finished difference Result 134 states and 179 transitions. [2021-12-17 15:08:43,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:08:43,061 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-12-17 15:08:43,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:43,069 INFO L225 Difference]: With dead ends: 134 [2021-12-17 15:08:43,069 INFO L226 Difference]: Without dead ends: 101 [2021-12-17 15:08:43,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-12-17 15:08:43,074 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 99 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:43,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 253 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:08:43,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-12-17 15:08:43,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 67. [2021-12-17 15:08:43,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 55 states have (on average 1.309090909090909) internal successors, (72), 60 states have internal predecessors, (72), 5 states have call successors, (5), 5 states have call predecessors, (5), 6 states have return successors, (7), 6 states have call predecessors, (7), 5 states have call successors, (7) [2021-12-17 15:08:43,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 84 transitions. [2021-12-17 15:08:43,094 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 84 transitions. Word has length 25 [2021-12-17 15:08:43,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:43,095 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 84 transitions. [2021-12-17 15:08:43,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 15:08:43,095 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 84 transitions. [2021-12-17 15:08:43,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-12-17 15:08:43,098 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:43,098 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:08:43,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-17 15:08:43,099 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:43,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:43,100 INFO L85 PathProgramCache]: Analyzing trace with hash 414035503, now seen corresponding path program 1 times [2021-12-17 15:08:43,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:43,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090225519] [2021-12-17 15:08:43,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:43,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:43,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:43,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:08:43,146 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:43,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090225519] [2021-12-17 15:08:43,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090225519] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:43,147 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:43,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 15:08:43,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511552395] [2021-12-17 15:08:43,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:43,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 15:08:43,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:43,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 15:08:43,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:08:43,150 INFO L87 Difference]: Start difference. First operand 67 states and 84 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 15:08:43,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:43,168 INFO L93 Difference]: Finished difference Result 123 states and 157 transitions. [2021-12-17 15:08:43,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 15:08:43,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-12-17 15:08:43,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:43,170 INFO L225 Difference]: With dead ends: 123 [2021-12-17 15:08:43,170 INFO L226 Difference]: Without dead ends: 63 [2021-12-17 15:08:43,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:08:43,172 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 29 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:43,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 43 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:08:43,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-12-17 15:08:43,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-12-17 15:08:43,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 51 states have (on average 1.2549019607843137) internal successors, (64), 56 states have internal predecessors, (64), 5 states have call successors, (5), 5 states have call predecessors, (5), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2021-12-17 15:08:43,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 75 transitions. [2021-12-17 15:08:43,181 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 75 transitions. Word has length 27 [2021-12-17 15:08:43,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:43,181 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 75 transitions. [2021-12-17 15:08:43,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 15:08:43,181 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 75 transitions. [2021-12-17 15:08:43,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-17 15:08:43,182 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:43,182 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:08:43,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-17 15:08:43,182 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:43,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:43,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1118685262, now seen corresponding path program 1 times [2021-12-17 15:08:43,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:43,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751950415] [2021-12-17 15:08:43,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:43,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:43,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:43,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:08:43,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:43,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:08:43,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:43,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751950415] [2021-12-17 15:08:43,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751950415] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:43,278 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:43,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:08:43,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124311405] [2021-12-17 15:08:43,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:43,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-17 15:08:43,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:43,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-17 15:08:43,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-17 15:08:43,279 INFO L87 Difference]: Start difference. First operand 63 states and 75 transitions. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:08:43,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:43,426 INFO L93 Difference]: Finished difference Result 174 states and 215 transitions. [2021-12-17 15:08:43,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-17 15:08:43,427 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2021-12-17 15:08:43,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:43,428 INFO L225 Difference]: With dead ends: 174 [2021-12-17 15:08:43,428 INFO L226 Difference]: Without dead ends: 118 [2021-12-17 15:08:43,430 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2021-12-17 15:08:43,431 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 114 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:43,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 224 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:08:43,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-12-17 15:08:43,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 90. [2021-12-17 15:08:43,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 72 states have (on average 1.25) internal successors, (90), 79 states have internal predecessors, (90), 8 states have call successors, (8), 8 states have call predecessors, (8), 9 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2021-12-17 15:08:43,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 107 transitions. [2021-12-17 15:08:43,442 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 107 transitions. Word has length 29 [2021-12-17 15:08:43,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:43,443 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 107 transitions. [2021-12-17 15:08:43,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:08:43,443 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 107 transitions. [2021-12-17 15:08:43,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-17 15:08:43,444 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:43,444 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:08:43,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 15:08:43,445 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:43,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:43,445 INFO L85 PathProgramCache]: Analyzing trace with hash 2111610881, now seen corresponding path program 1 times [2021-12-17 15:08:43,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:43,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653329580] [2021-12-17 15:08:43,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:43,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:43,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:43,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:08:43,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:43,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-17 15:08:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:43,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-17 15:08:43,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:43,509 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-17 15:08:43,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:43,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653329580] [2021-12-17 15:08:43,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653329580] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:08:43,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [900765419] [2021-12-17 15:08:43,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:43,510 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:08:43,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:08:43,512 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 15:08:43,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-17 15:08:43,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:43,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-17 15:08:43,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:08:43,732 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-17 15:08:43,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 15:08:43,935 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:08:43,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [900765419] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 15:08:43,935 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 15:08:43,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 14 [2021-12-17 15:08:43,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471711058] [2021-12-17 15:08:43,935 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 15:08:43,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-17 15:08:43,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:43,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-17 15:08:43,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-12-17 15:08:43,948 INFO L87 Difference]: Start difference. First operand 90 states and 107 transitions. Second operand has 14 states, 14 states have (on average 6.0) internal successors, (84), 12 states have internal predecessors, (84), 4 states have call successors, (10), 6 states have call predecessors, (10), 7 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-12-17 15:08:44,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:44,057 INFO L93 Difference]: Finished difference Result 117 states and 141 transitions. [2021-12-17 15:08:44,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-17 15:08:44,058 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 12 states have internal predecessors, (84), 4 states have call successors, (10), 6 states have call predecessors, (10), 7 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 51 [2021-12-17 15:08:44,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:44,058 INFO L225 Difference]: With dead ends: 117 [2021-12-17 15:08:44,058 INFO L226 Difference]: Without dead ends: 0 [2021-12-17 15:08:44,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2021-12-17 15:08:44,059 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 107 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:44,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 275 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:08:44,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-17 15:08:44,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-17 15:08:44,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 15:08:44,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-17 15:08:44,060 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2021-12-17 15:08:44,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:44,061 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-17 15:08:44,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 12 states have internal predecessors, (84), 4 states have call successors, (10), 6 states have call predecessors, (10), 7 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-12-17 15:08:44,061 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-17 15:08:44,061 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-17 15:08:44,063 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 15:08:44,081 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-17 15:08:44,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:08:44,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-17 15:08:44,793 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 484 495) the Hoare annotation is: true [2021-12-17 15:08:44,793 INFO L858 garLoopResultBuilder]: For program point L488-1(lines 484 495) no Hoare annotation was computed. [2021-12-17 15:08:44,793 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 484 495) no Hoare annotation was computed. [2021-12-17 15:08:44,793 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 772 801) no Hoare annotation was computed. [2021-12-17 15:08:44,793 INFO L861 garLoopResultBuilder]: At program point L797(lines 772 801) the Hoare annotation is: true [2021-12-17 15:08:44,793 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 772 801) the Hoare annotation is: true [2021-12-17 15:08:44,793 INFO L858 garLoopResultBuilder]: For program point L793(line 793) no Hoare annotation was computed. [2021-12-17 15:08:44,793 INFO L858 garLoopResultBuilder]: For program point L786(lines 786 790) no Hoare annotation was computed. [2021-12-17 15:08:44,793 INFO L861 garLoopResultBuilder]: At program point L786-1(lines 786 790) the Hoare annotation is: true [2021-12-17 15:08:44,793 INFO L858 garLoopResultBuilder]: For program point L783(line 783) no Hoare annotation was computed. [2021-12-17 15:08:44,793 INFO L861 garLoopResultBuilder]: At program point L782-2(lines 782 796) the Hoare annotation is: true [2021-12-17 15:08:44,793 INFO L861 garLoopResultBuilder]: At program point L778(line 778) the Hoare annotation is: true [2021-12-17 15:08:44,793 INFO L858 garLoopResultBuilder]: For program point L778-1(line 778) no Hoare annotation was computed. [2021-12-17 15:08:44,794 INFO L854 garLoopResultBuilder]: At program point L533(lines 528 536) the Hoare annotation is: (let ((.cse3 (= ~systemActive~0 1))) (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (and (not (= 0 ~waterLevel~0)) (= ~waterLevel~0 |old(~waterLevel~0)|) (not (= 0 |timeShift_getWaterLevel_#res#1|)) .cse3)) (.cse2 (not .cse3))) (and (or (not (= |old(~waterLevel~0)| 1)) .cse0 .cse1 .cse2) (or (not (<= 2 |old(~waterLevel~0)|)) .cse0 .cse1 .cse2)))) [2021-12-17 15:08:44,794 INFO L854 garLoopResultBuilder]: At program point L692(lines 687 695) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (= ~systemActive~0 1)) (not (<= 1 |old(~waterLevel~0)|))) [2021-12-17 15:08:44,794 INFO L858 garLoopResultBuilder]: For program point L622-1(lines 622 628) no Hoare annotation was computed. [2021-12-17 15:08:44,794 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 611 634) no Hoare annotation was computed. [2021-12-17 15:08:44,794 INFO L858 garLoopResultBuilder]: For program point L420(line 420) no Hoare annotation was computed. [2021-12-17 15:08:44,794 INFO L854 garLoopResultBuilder]: At program point L639(lines 635 641) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= ~waterLevel~0 |old(~waterLevel~0)|) (not (= ~systemActive~0 1)) (not (<= 1 |old(~waterLevel~0)|))) [2021-12-17 15:08:44,794 INFO L858 garLoopResultBuilder]: For program point L439(lines 439 445) no Hoare annotation was computed. [2021-12-17 15:08:44,794 INFO L858 garLoopResultBuilder]: For program point L435(lines 435 448) no Hoare annotation was computed. [2021-12-17 15:08:44,794 INFO L854 garLoopResultBuilder]: At program point L435-1(lines 427 451) the Hoare annotation is: (let ((.cse0 (and (not (= |timeShift___utac_acc__Specification4_spec__1_~tmp~3#1| 0)) (not (= |timeShift_getWaterLevel_#res#1| 0)) (= ~waterLevel~0 |old(~waterLevel~0)|))) (.cse1 (not (= ~pumpRunning~0 0))) (.cse2 (not (= ~systemActive~0 1)))) (and (or (not (<= 2 |old(~waterLevel~0)|)) .cse0 .cse1 .cse2) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 .cse2))) [2021-12-17 15:08:44,794 INFO L858 garLoopResultBuilder]: For program point L464(lines 464 468) no Hoare annotation was computed. [2021-12-17 15:08:44,794 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 611 634) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= ~waterLevel~0 |old(~waterLevel~0)|) (not (= ~systemActive~0 1)) (not (<= 1 |old(~waterLevel~0)|))) [2021-12-17 15:08:44,794 INFO L854 garLoopResultBuilder]: At program point L464-2(lines 460 471) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (= ~systemActive~0 1)) (not (<= 1 |old(~waterLevel~0)|))) [2021-12-17 15:08:44,794 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 611 634) no Hoare annotation was computed. [2021-12-17 15:08:44,794 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 420) no Hoare annotation was computed. [2021-12-17 15:08:44,795 INFO L858 garLoopResultBuilder]: For program point L615-1(lines 614 633) no Hoare annotation was computed. [2021-12-17 15:08:44,795 INFO L854 garLoopResultBuilder]: At program point L421(lines 416 423) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (= ~systemActive~0 1)) (not (<= 1 |old(~waterLevel~0)|))) [2021-12-17 15:08:44,795 INFO L854 garLoopResultBuilder]: At program point L766(lines 761 769) the Hoare annotation is: (and (= ~waterLevel~0 ~systemActive~0) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:08:44,795 INFO L854 garLoopResultBuilder]: At program point L572(line 572) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (not (= 0 ~waterLevel~0))) (.cse2 (= ~systemActive~0 1)) (.cse3 (= ~pumpRunning~0 0))) (or (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3) (and .cse0 (= ~waterLevel~0 1) .cse1 .cse2 .cse3))) [2021-12-17 15:08:44,795 INFO L854 garLoopResultBuilder]: At program point L758(lines 754 760) the Hoare annotation is: (and (= ~waterLevel~0 ~systemActive~0) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:08:44,795 INFO L858 garLoopResultBuilder]: For program point L853(lines 853 860) no Hoare annotation was computed. [2021-12-17 15:08:44,795 INFO L858 garLoopResultBuilder]: For program point L853-2(lines 853 860) no Hoare annotation was computed. [2021-12-17 15:08:44,795 INFO L854 garLoopResultBuilder]: At program point L593(lines 550 595) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (not (= 0 ~waterLevel~0))) (.cse2 (= ~systemActive~0 1)) (.cse3 (= ~pumpRunning~0 0))) (or (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3) (and .cse0 (= ~waterLevel~0 1) .cse1 .cse2 .cse3))) [2021-12-17 15:08:44,795 INFO L858 garLoopResultBuilder]: For program point L560(lines 560 566) no Hoare annotation was computed. [2021-12-17 15:08:44,795 INFO L858 garLoopResultBuilder]: For program point L560-1(lines 560 566) no Hoare annotation was computed. [2021-12-17 15:08:44,795 INFO L858 garLoopResultBuilder]: For program point L552(lines 552 556) no Hoare annotation was computed. [2021-12-17 15:08:44,795 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-17 15:08:44,795 INFO L861 garLoopResultBuilder]: At program point L862(lines 843 865) the Hoare annotation is: true [2021-12-17 15:08:44,795 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-17 15:08:44,795 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-17 15:08:44,795 INFO L854 garLoopResultBuilder]: At program point L751(lines 747 753) the Hoare annotation is: (and (= ~waterLevel~0 ~systemActive~0) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:08:44,795 INFO L858 garLoopResultBuilder]: For program point L586(lines 586 590) no Hoare annotation was computed. [2021-12-17 15:08:44,795 INFO L854 garLoopResultBuilder]: At program point L586-2(lines 580 591) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (not (= 0 ~waterLevel~0))) (.cse2 (= ~systemActive~0 1)) (.cse3 (= ~pumpRunning~0 0))) (or (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3) (and .cse0 (= ~waterLevel~0 1) .cse1 .cse2 .cse3))) [2021-12-17 15:08:44,796 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-17 15:08:44,796 INFO L854 garLoopResultBuilder]: At program point L830(lines 826 832) the Hoare annotation is: (and (= ~waterLevel~0 ~systemActive~0) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:08:44,796 INFO L858 garLoopResultBuilder]: For program point L570(lines 570 576) no Hoare annotation was computed. [2021-12-17 15:08:44,796 INFO L858 garLoopResultBuilder]: For program point L570-1(lines 570 576) no Hoare annotation was computed. [2021-12-17 15:08:44,796 INFO L861 garLoopResultBuilder]: At program point L599(lines 540 603) the Hoare annotation is: true [2021-12-17 15:08:44,796 INFO L854 garLoopResultBuilder]: At program point L562(line 562) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= ~systemActive~0 1)) (.cse1 (= ~pumpRunning~0 0))) (or (and .cse0 (= ~waterLevel~0 1) .cse1 .cse2) (and .cse0 (<= 2 ~waterLevel~0) .cse2 .cse1))) [2021-12-17 15:08:44,796 INFO L854 garLoopResultBuilder]: At program point L596(lines 549 597) the Hoare annotation is: false [2021-12-17 15:08:44,796 INFO L861 garLoopResultBuilder]: At program point L840(lines 833 842) the Hoare annotation is: true [2021-12-17 15:08:44,796 INFO L858 garLoopResultBuilder]: For program point L551(lines 550 595) no Hoare annotation was computed. [2021-12-17 15:08:44,796 INFO L858 garLoopResultBuilder]: For program point L580(lines 580 591) no Hoare annotation was computed. [2021-12-17 15:08:44,796 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 472 483) no Hoare annotation was computed. [2021-12-17 15:08:44,796 INFO L858 garLoopResultBuilder]: For program point L476-1(lines 472 483) no Hoare annotation was computed. [2021-12-17 15:08:44,796 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 472 483) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= ~waterLevel~0 |old(~waterLevel~0)|) (not (= ~systemActive~0 1)) (not (<= 1 |old(~waterLevel~0)|))) [2021-12-17 15:08:44,800 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:08:44,801 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 15:08:44,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 03:08:44 BoogieIcfgContainer [2021-12-17 15:08:44,813 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 15:08:44,813 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 15:08:44,814 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 15:08:44,814 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 15:08:44,814 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:08:42" (3/4) ... [2021-12-17 15:08:44,816 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-17 15:08:44,820 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-12-17 15:08:44,820 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-12-17 15:08:44,820 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-12-17 15:08:44,820 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-12-17 15:08:44,824 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2021-12-17 15:08:44,824 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-12-17 15:08:44,824 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-17 15:08:44,825 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-17 15:08:44,825 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-17 15:08:44,825 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 15:08:44,825 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 15:08:44,839 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(pumpRunning == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel)) [2021-12-17 15:08:44,839 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(pumpRunning == 0) || waterLevel == \old(waterLevel)) || !(systemActive == 1)) || !(1 <= \old(waterLevel)) [2021-12-17 15:08:44,840 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(waterLevel) == 1) || !(pumpRunning == 0)) || (((!(0 == waterLevel) && waterLevel == \old(waterLevel)) && !(0 == \result)) && systemActive == 1)) || !(systemActive == 1)) && (((!(2 <= \old(waterLevel)) || !(pumpRunning == 0)) || (((!(0 == waterLevel) && waterLevel == \old(waterLevel)) && !(0 == \result)) && systemActive == 1)) || !(systemActive == 1)) [2021-12-17 15:08:44,840 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(2 <= \old(waterLevel)) || ((!(tmp == 0) && !(\result == 0)) && waterLevel == \old(waterLevel))) || !(pumpRunning == 0)) || !(systemActive == 1)) && (((((!(tmp == 0) && !(\result == 0)) && waterLevel == \old(waterLevel)) || !(\old(waterLevel) == 1)) || !(pumpRunning == 0)) || !(systemActive == 1)) [2021-12-17 15:08:44,840 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(pumpRunning == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel)) [2021-12-17 15:08:44,840 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(pumpRunning == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel)) [2021-12-17 15:08:44,850 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 15:08:44,850 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 15:08:44,851 INFO L158 Benchmark]: Toolchain (without parser) took 3328.91ms. Allocated memory was 98.6MB in the beginning and 134.2MB in the end (delta: 35.7MB). Free memory was 68.4MB in the beginning and 78.0MB in the end (delta: -9.6MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. [2021-12-17 15:08:44,851 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 98.6MB. Free memory is still 55.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 15:08:44,851 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.11ms. Allocated memory was 98.6MB in the beginning and 134.2MB in the end (delta: 35.7MB). Free memory was 68.1MB in the beginning and 101.9MB in the end (delta: -33.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-17 15:08:44,852 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.29ms. Allocated memory is still 134.2MB. Free memory was 101.9MB in the beginning and 99.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 15:08:44,852 INFO L158 Benchmark]: Boogie Preprocessor took 27.14ms. Allocated memory is still 134.2MB. Free memory was 99.9MB in the beginning and 98.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 15:08:44,852 INFO L158 Benchmark]: RCFGBuilder took 341.39ms. Allocated memory is still 134.2MB. Free memory was 98.6MB in the beginning and 84.5MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-17 15:08:44,852 INFO L158 Benchmark]: TraceAbstraction took 2548.60ms. Allocated memory is still 134.2MB. Free memory was 83.9MB in the beginning and 82.2MB in the end (delta: 1.7MB). Peak memory consumption was 41.7MB. Max. memory is 16.1GB. [2021-12-17 15:08:44,853 INFO L158 Benchmark]: Witness Printer took 36.99ms. Allocated memory is still 134.2MB. Free memory was 82.2MB in the beginning and 78.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-17 15:08:44,854 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 98.6MB. Free memory is still 55.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 329.11ms. Allocated memory was 98.6MB in the beginning and 134.2MB in the end (delta: 35.7MB). Free memory was 68.1MB in the beginning and 101.9MB in the end (delta: -33.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.29ms. Allocated memory is still 134.2MB. Free memory was 101.9MB in the beginning and 99.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.14ms. Allocated memory is still 134.2MB. Free memory was 99.9MB in the beginning and 98.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 341.39ms. Allocated memory is still 134.2MB. Free memory was 98.6MB in the beginning and 84.5MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2548.60ms. Allocated memory is still 134.2MB. Free memory was 83.9MB in the beginning and 82.2MB in the end (delta: 1.7MB). Peak memory consumption was 41.7MB. Max. memory is 16.1GB. * Witness Printer took 36.99ms. Allocated memory is still 134.2MB. Free memory was 82.2MB in the beginning and 78.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 420]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 58 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 398 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 393 mSDsluCounter, 996 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 633 mSDsCounter, 66 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 257 IncrementalHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 66 mSolverCounterUnsat, 363 mSDtfsCounter, 257 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 152 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=6, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 62 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 26 LocationsWithAnnotation, 146 PreInvPairs, 164 NumberOfFragments, 377 HoareAnnotationTreeSize, 146 FomulaSimplifications, 127 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 26 FomulaSimplificationsInter, 1443 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 246 NumberOfCodeBlocks, 246 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 288 ConstructedInterpolants, 0 QuantifiedInterpolants, 759 SizeOfPredicates, 0 NumberOfNonLiveVariables, 344 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 51/57 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 772]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 635]: Loop Invariant Derived loop invariant: ((!(pumpRunning == 0) || waterLevel == \old(waterLevel)) || !(systemActive == 1)) || !(1 <= \old(waterLevel)) - InvariantResult [Line: 826]: Loop Invariant Derived loop invariant: (waterLevel == systemActive && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 427]: Loop Invariant Derived loop invariant: (((!(2 <= \old(waterLevel)) || ((!(tmp == 0) && !(\result == 0)) && waterLevel == \old(waterLevel))) || !(pumpRunning == 0)) || !(systemActive == 1)) && (((((!(tmp == 0) && !(\result == 0)) && waterLevel == \old(waterLevel)) || !(\old(waterLevel) == 1)) || !(pumpRunning == 0)) || !(systemActive == 1)) - InvariantResult [Line: 833]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 747]: Loop Invariant Derived loop invariant: (waterLevel == systemActive && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 761]: Loop Invariant Derived loop invariant: (waterLevel == systemActive && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 528]: Loop Invariant Derived loop invariant: (((!(\old(waterLevel) == 1) || !(pumpRunning == 0)) || (((!(0 == waterLevel) && waterLevel == \old(waterLevel)) && !(0 == \result)) && systemActive == 1)) || !(systemActive == 1)) && (((!(2 <= \old(waterLevel)) || !(pumpRunning == 0)) || (((!(0 == waterLevel) && waterLevel == \old(waterLevel)) && !(0 == \result)) && systemActive == 1)) || !(systemActive == 1)) - InvariantResult [Line: 550]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0 && !(0 == waterLevel)) && 2 <= waterLevel) && systemActive == 1) && pumpRunning == 0) || ((((splverifierCounter == 0 && waterLevel == 1) && !(0 == waterLevel)) && systemActive == 1) && pumpRunning == 0) - InvariantResult [Line: 843]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 540]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 687]: Loop Invariant Derived loop invariant: (!(pumpRunning == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel)) - InvariantResult [Line: 549]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 754]: Loop Invariant Derived loop invariant: (waterLevel == systemActive && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 782]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 460]: Loop Invariant Derived loop invariant: (!(pumpRunning == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel)) - InvariantResult [Line: 416]: Loop Invariant Derived loop invariant: (!(pumpRunning == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel)) RESULT: Ultimate proved your program to be correct! [2021-12-17 15:08:44,885 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE