./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product02.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_product02.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 8ef3a2966212a62c51376d0bc71e8b6c4dafa6b54b639f6f7c53dd815ae9709e --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 01:00:07,602 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 01:00:07,604 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 01:00:07,638 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 01:00:07,639 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 01:00:07,642 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 01:00:07,643 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 01:00:07,645 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 01:00:07,646 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 01:00:07,649 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 01:00:07,650 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 01:00:07,651 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 01:00:07,651 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 01:00:07,653 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 01:00:07,654 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 01:00:07,657 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 01:00:07,658 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 01:00:07,659 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 01:00:07,661 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 01:00:07,664 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 01:00:07,665 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 01:00:07,666 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 01:00:07,667 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 01:00:07,668 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 01:00:07,672 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 01:00:07,672 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 01:00:07,672 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 01:00:07,673 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 01:00:07,674 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 01:00:07,674 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 01:00:07,674 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 01:00:07,675 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 01:00:07,676 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 01:00:07,677 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 01:00:07,677 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 01:00:07,678 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 01:00:07,678 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 01:00:07,678 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 01:00:07,678 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 01:00:07,679 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 01:00:07,680 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 01:00:07,681 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-16 01:00:07,706 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 01:00:07,706 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 01:00:07,707 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 01:00:07,707 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 01:00:07,708 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 01:00:07,708 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 01:00:07,708 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 01:00:07,708 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 01:00:07,708 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 01:00:07,709 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 01:00:07,709 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 01:00:07,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 01:00:07,709 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 01:00:07,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 01:00:07,710 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 01:00:07,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 01:00:07,710 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 01:00:07,710 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 01:00:07,710 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 01:00:07,710 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 01:00:07,710 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 01:00:07,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 01:00:07,711 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 01:00:07,711 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 01:00:07,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 01:00:07,711 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 01:00:07,711 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 01:00:07,712 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 01:00:07,712 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 01:00:07,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 01:00:07,713 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 01:00:07,713 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 01:00:07,713 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 01:00:07,713 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 01:00:07,713 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ef3a2966212a62c51376d0bc71e8b6c4dafa6b54b639f6f7c53dd815ae9709e [2021-12-16 01:00:07,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 01:00:07,949 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 01:00:07,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 01:00:07,952 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 01:00:07,952 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 01:00:07,953 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product02.cil.c [2021-12-16 01:00:08,009 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb4e38b65/f1b608b919c94c868e052d0cd9eef793/FLAG1a397c348 [2021-12-16 01:00:08,410 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 01:00:08,411 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product02.cil.c [2021-12-16 01:00:08,421 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb4e38b65/f1b608b919c94c868e052d0cd9eef793/FLAG1a397c348 [2021-12-16 01:00:08,431 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb4e38b65/f1b608b919c94c868e052d0cd9eef793 [2021-12-16 01:00:08,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 01:00:08,437 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 01:00:08,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 01:00:08,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 01:00:08,441 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 01:00:08,442 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:00:08" (1/1) ... [2021-12-16 01:00:08,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fbe908a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:08, skipping insertion in model container [2021-12-16 01:00:08,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:00:08" (1/1) ... [2021-12-16 01:00:08,447 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 01:00:08,479 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 01:00:08,589 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_product02.cil.c[1605,1618] [2021-12-16 01:00:08,682 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 01:00:08,691 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 01:00:08,700 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_product02.cil.c[1605,1618] [2021-12-16 01:00:08,758 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 01:00:08,768 INFO L208 MainTranslator]: Completed translation [2021-12-16 01:00:08,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:08 WrapperNode [2021-12-16 01:00:08,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 01:00:08,770 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 01:00:08,770 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 01:00:08,770 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 01:00:08,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:08" (1/1) ... [2021-12-16 01:00:08,800 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:08" (1/1) ... [2021-12-16 01:00:08,825 INFO L137 Inliner]: procedures = 50, calls = 145, calls flagged for inlining = 19, calls inlined = 15, statements flattened = 189 [2021-12-16 01:00:08,825 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 01:00:08,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 01:00:08,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 01:00:08,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 01:00:08,833 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:08" (1/1) ... [2021-12-16 01:00:08,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:08" (1/1) ... [2021-12-16 01:00:08,839 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:08" (1/1) ... [2021-12-16 01:00:08,840 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:08" (1/1) ... [2021-12-16 01:00:08,854 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:08" (1/1) ... [2021-12-16 01:00:08,864 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:08" (1/1) ... [2021-12-16 01:00:08,865 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:08" (1/1) ... [2021-12-16 01:00:08,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 01:00:08,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 01:00:08,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 01:00:08,868 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 01:00:08,869 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:08" (1/1) ... [2021-12-16 01:00:08,874 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 01:00:08,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 01:00:08,916 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) [2021-12-16 01:00:08,922 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 [2021-12-16 01:00:08,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 01:00:08,947 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-16 01:00:08,947 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-16 01:00:08,947 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-16 01:00:08,948 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-16 01:00:08,948 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-16 01:00:08,948 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-16 01:00:08,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 01:00:08,948 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-16 01:00:08,948 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-16 01:00:08,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 01:00:08,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 01:00:09,009 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 01:00:09,010 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 01:00:09,194 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 01:00:09,199 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 01:00:09,199 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-16 01:00:09,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:00:09 BoogieIcfgContainer [2021-12-16 01:00:09,201 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 01:00:09,202 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 01:00:09,202 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 01:00:09,204 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 01:00:09,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:00:08" (1/3) ... [2021-12-16 01:00:09,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@987458c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:00:09, skipping insertion in model container [2021-12-16 01:00:09,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:00:08" (2/3) ... [2021-12-16 01:00:09,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@987458c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:00:09, skipping insertion in model container [2021-12-16 01:00:09,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:00:09" (3/3) ... [2021-12-16 01:00:09,207 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product02.cil.c [2021-12-16 01:00:09,210 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 01:00:09,223 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 01:00:09,272 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 01:00:09,280 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 [2021-12-16 01:00:09,280 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 01:00:09,304 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 47 states have (on average 1.4042553191489362) internal successors, (66), 51 states have internal predecessors, (66), 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) [2021-12-16 01:00:09,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-16 01:00:09,308 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:09,308 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:00:09,309 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:09,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:09,314 INFO L85 PathProgramCache]: Analyzing trace with hash -2112614328, now seen corresponding path program 1 times [2021-12-16 01:00:09,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:09,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916125652] [2021-12-16 01:00:09,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:09,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:09,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:09,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:00:09,530 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:09,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916125652] [2021-12-16 01:00:09,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916125652] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:09,531 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:00:09,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-16 01:00:09,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803236652] [2021-12-16 01:00:09,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:09,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-16 01:00:09,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:09,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-16 01:00:09,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-16 01:00:09,576 INFO L87 Difference]: Start difference. First operand has 59 states, 47 states have (on average 1.4042553191489362) internal successors, (66), 51 states have internal predecessors, (66), 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) [2021-12-16 01:00:09,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:09,605 INFO L93 Difference]: Finished difference Result 110 states and 151 transitions. [2021-12-16 01:00:09,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-16 01:00:09,607 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 [2021-12-16 01:00:09,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:09,613 INFO L225 Difference]: With dead ends: 110 [2021-12-16 01:00:09,613 INFO L226 Difference]: Without dead ends: 50 [2021-12-16 01:00:09,619 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 [2021-12-16 01:00:09,624 INFO L933 BasicCegarLoop]: 72 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, 72 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 [2021-12-16 01:00:09,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:00:09,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-12-16 01:00:09,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-12-16 01:00:09,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 40 states have (on average 1.3) internal successors, (52), 43 states have internal predecessors, (52), 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) [2021-12-16 01:00:09,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 63 transitions. [2021-12-16 01:00:09,654 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 63 transitions. Word has length 19 [2021-12-16 01:00:09,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:09,654 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 63 transitions. [2021-12-16 01:00:09,655 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) [2021-12-16 01:00:09,655 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 63 transitions. [2021-12-16 01:00:09,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-12-16 01:00:09,656 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:09,657 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] [2021-12-16 01:00:09,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 01:00:09,657 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:09,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:09,658 INFO L85 PathProgramCache]: Analyzing trace with hash 67396636, now seen corresponding path program 1 times [2021-12-16 01:00:09,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:09,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749697658] [2021-12-16 01:00:09,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:09,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:09,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:09,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:00:09,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:09,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749697658] [2021-12-16 01:00:09,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749697658] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:09,697 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:00:09,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 01:00:09,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573529516] [2021-12-16 01:00:09,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:09,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 01:00:09,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:09,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 01:00:09,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:00:09,700 INFO L87 Difference]: Start difference. First operand 50 states and 63 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) [2021-12-16 01:00:09,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:09,708 INFO L93 Difference]: Finished difference Result 65 states and 81 transitions. [2021-12-16 01:00:09,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 01:00:09,708 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 [2021-12-16 01:00:09,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:09,709 INFO L225 Difference]: With dead ends: 65 [2021-12-16 01:00:09,709 INFO L226 Difference]: Without dead ends: 41 [2021-12-16 01:00:09,710 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 [2021-12-16 01:00:09,711 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 13 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 83 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 [2021-12-16 01:00:09,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 83 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:00:09,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-12-16 01:00:09,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-12-16 01:00:09,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 37 states have internal predecessors, (45), 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) [2021-12-16 01:00:09,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2021-12-16 01:00:09,716 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 51 transitions. Word has length 20 [2021-12-16 01:00:09,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:09,717 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 51 transitions. [2021-12-16 01:00:09,717 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) [2021-12-16 01:00:09,717 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2021-12-16 01:00:09,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-16 01:00:09,718 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:09,718 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] [2021-12-16 01:00:09,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 01:00:09,718 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:09,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:09,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1748531166, now seen corresponding path program 1 times [2021-12-16 01:00:09,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:09,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436696723] [2021-12-16 01:00:09,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:09,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:09,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:09,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:00:09,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:09,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436696723] [2021-12-16 01:00:09,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436696723] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:09,767 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:00:09,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 01:00:09,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503938645] [2021-12-16 01:00:09,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:09,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 01:00:09,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:09,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 01:00:09,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 01:00:09,769 INFO L87 Difference]: Start difference. First operand 41 states and 51 transitions. Second operand has 5 states, 5 states have (on average 4.8) 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) [2021-12-16 01:00:09,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:09,808 INFO L93 Difference]: Finished difference Result 75 states and 96 transitions. [2021-12-16 01:00:09,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 01:00:09,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) 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 [2021-12-16 01:00:09,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:09,810 INFO L225 Difference]: With dead ends: 75 [2021-12-16 01:00:09,810 INFO L226 Difference]: Without dead ends: 41 [2021-12-16 01:00:09,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-16 01:00:09,811 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 76 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:00:09,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 100 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:00:09,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-12-16 01:00:09,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-12-16 01:00:09,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 37 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) [2021-12-16 01:00:09,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2021-12-16 01:00:09,817 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 25 [2021-12-16 01:00:09,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:09,817 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2021-12-16 01:00:09,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) 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) [2021-12-16 01:00:09,818 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2021-12-16 01:00:09,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-16 01:00:09,819 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:09,819 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] [2021-12-16 01:00:09,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 01:00:09,819 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:09,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:09,820 INFO L85 PathProgramCache]: Analyzing trace with hash 673445797, now seen corresponding path program 1 times [2021-12-16 01:00:09,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:09,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477504082] [2021-12-16 01:00:09,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:09,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:09,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:09,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:00:09,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:09,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477504082] [2021-12-16 01:00:09,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477504082] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:09,866 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:00:09,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 01:00:09,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133800650] [2021-12-16 01:00:09,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:09,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 01:00:09,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:09,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 01:00:09,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 01:00:09,869 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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) [2021-12-16 01:00:09,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:09,904 INFO L93 Difference]: Finished difference Result 102 states and 133 transitions. [2021-12-16 01:00:09,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 01:00:09,904 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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 26 [2021-12-16 01:00:09,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:09,906 INFO L225 Difference]: With dead ends: 102 [2021-12-16 01:00:09,907 INFO L226 Difference]: Without dead ends: 68 [2021-12-16 01:00:09,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-16 01:00:09,908 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 24 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:00:09,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 184 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:00:09,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-12-16 01:00:09,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-12-16 01:00:09,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 56 states have (on average 1.2857142857142858) internal successors, (72), 60 states have internal predecessors, (72), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (7), 5 states have call predecessors, (7), 6 states have call successors, (7) [2021-12-16 01:00:09,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 85 transitions. [2021-12-16 01:00:09,918 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 85 transitions. Word has length 26 [2021-12-16 01:00:09,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:09,918 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 85 transitions. [2021-12-16 01:00:09,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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) [2021-12-16 01:00:09,919 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 85 transitions. [2021-12-16 01:00:09,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-16 01:00:09,919 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:09,920 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] [2021-12-16 01:00:09,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 01:00:09,920 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:09,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:09,921 INFO L85 PathProgramCache]: Analyzing trace with hash 122478752, now seen corresponding path program 1 times [2021-12-16 01:00:09,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:09,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583954231] [2021-12-16 01:00:09,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:09,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:09,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:09,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:00:09,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:09,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583954231] [2021-12-16 01:00:09,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583954231] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:09,946 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:00:09,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-16 01:00:09,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517661891] [2021-12-16 01:00:09,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:09,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 01:00:09,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:09,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 01:00:09,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:00:09,947 INFO L87 Difference]: Start difference. First operand 68 states and 85 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 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) [2021-12-16 01:00:09,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:09,955 INFO L93 Difference]: Finished difference Result 100 states and 126 transitions. [2021-12-16 01:00:09,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 01:00:09,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 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 28 [2021-12-16 01:00:09,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:09,956 INFO L225 Difference]: With dead ends: 100 [2021-12-16 01:00:09,957 INFO L226 Difference]: Without dead ends: 65 [2021-12-16 01:00:09,957 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 [2021-12-16 01:00:09,958 INFO L933 BasicCegarLoop]: 44 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, 44 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 [2021-12-16 01:00:09,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 44 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:00:09,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-12-16 01:00:09,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-12-16 01:00:09,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 53 states have (on average 1.2452830188679245) internal successors, (66), 57 states have internal predecessors, (66), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2021-12-16 01:00:09,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 78 transitions. [2021-12-16 01:00:09,965 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 78 transitions. Word has length 28 [2021-12-16 01:00:09,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:09,966 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 78 transitions. [2021-12-16 01:00:09,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 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) [2021-12-16 01:00:09,966 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 78 transitions. [2021-12-16 01:00:09,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-16 01:00:09,967 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:00:09,967 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, 1] [2021-12-16 01:00:09,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-16 01:00:09,967 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:00:09,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:00:09,968 INFO L85 PathProgramCache]: Analyzing trace with hash -970164469, now seen corresponding path program 1 times [2021-12-16 01:00:09,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:00:09,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465897232] [2021-12-16 01:00:09,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:00:09,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:00:09,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:10,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-16 01:00:10,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:00:10,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:00:10,013 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:00:10,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465897232] [2021-12-16 01:00:10,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465897232] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:00:10,013 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:00:10,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 01:00:10,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315629474] [2021-12-16 01:00:10,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:00:10,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 01:00:10,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:00:10,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 01:00:10,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-16 01:00:10,016 INFO L87 Difference]: Start difference. First operand 65 states and 78 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-16 01:00:10,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:00:10,082 INFO L93 Difference]: Finished difference Result 70 states and 83 transitions. [2021-12-16 01:00:10,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 01:00:10,082 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2021-12-16 01:00:10,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:00:10,083 INFO L225 Difference]: With dead ends: 70 [2021-12-16 01:00:10,083 INFO L226 Difference]: Without dead ends: 0 [2021-12-16 01:00:10,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:00:10,084 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 41 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:00:10,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 138 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:00:10,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-16 01:00:10,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-16 01:00:10,085 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) [2021-12-16 01:00:10,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-16 01:00:10,085 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2021-12-16 01:00:10,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:00:10,086 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-16 01:00:10,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-16 01:00:10,086 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-16 01:00:10,086 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-16 01:00:10,088 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-16 01:00:10,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-16 01:00:10,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-16 01:00:10,389 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 319 330) the Hoare annotation is: true [2021-12-16 01:00:10,390 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 319 330) no Hoare annotation was computed. [2021-12-16 01:00:10,390 INFO L858 garLoopResultBuilder]: For program point L323-1(lines 319 330) no Hoare annotation was computed. [2021-12-16 01:00:10,390 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 766 795) no Hoare annotation was computed. [2021-12-16 01:00:10,390 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 766 795) the Hoare annotation is: true [2021-12-16 01:00:10,390 INFO L861 garLoopResultBuilder]: At program point L791(lines 766 795) the Hoare annotation is: true [2021-12-16 01:00:10,390 INFO L858 garLoopResultBuilder]: For program point L787(line 787) no Hoare annotation was computed. [2021-12-16 01:00:10,391 INFO L858 garLoopResultBuilder]: For program point L780(lines 780 784) no Hoare annotation was computed. [2021-12-16 01:00:10,391 INFO L861 garLoopResultBuilder]: At program point L780-1(lines 780 784) the Hoare annotation is: true [2021-12-16 01:00:10,391 INFO L858 garLoopResultBuilder]: For program point L777(line 777) no Hoare annotation was computed. [2021-12-16 01:00:10,391 INFO L861 garLoopResultBuilder]: At program point L776-2(lines 776 790) the Hoare annotation is: true [2021-12-16 01:00:10,391 INFO L861 garLoopResultBuilder]: At program point L772(line 772) the Hoare annotation is: true [2021-12-16 01:00:10,391 INFO L858 garLoopResultBuilder]: For program point L772-1(line 772) no Hoare annotation was computed. [2021-12-16 01:00:10,391 INFO L858 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2021-12-16 01:00:10,392 INFO L858 garLoopResultBuilder]: For program point L114-1(lines 113 132) no Hoare annotation was computed. [2021-12-16 01:00:10,392 INFO L854 garLoopResultBuilder]: At program point L368(lines 363 371) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (= |timeShift_getWaterLevel_#res#1| 1)) (or .cse0 .cse1 (= ~waterLevel~0 |old(~waterLevel~0)|)))) [2021-12-16 01:00:10,392 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 110 133) no Hoare annotation was computed. [2021-12-16 01:00:10,392 INFO L858 garLoopResultBuilder]: For program point L385(lines 385 391) no Hoare annotation was computed. [2021-12-16 01:00:10,393 INFO L858 garLoopResultBuilder]: For program point L381(lines 381 394) no Hoare annotation was computed. [2021-12-16 01:00:10,393 INFO L854 garLoopResultBuilder]: At program point L381-1(lines 373 397) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and (= |timeShift_getWaterLevel_#res#1| 1) (= |timeShift___utac_acc__Specification4_spec__1_~tmp~1#1| 1))) (or .cse0 .cse1 (= ~waterLevel~0 |old(~waterLevel~0)|)))) [2021-12-16 01:00:10,393 INFO L858 garLoopResultBuilder]: For program point L121-1(lines 121 127) no Hoare annotation was computed. [2021-12-16 01:00:10,393 INFO L854 garLoopResultBuilder]: At program point L55(lines 50 57) the Hoare annotation is: (or (= 0 ~systemActive~0) (not (= ~pumpRunning~0 0))) [2021-12-16 01:00:10,394 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 110 133) the Hoare annotation is: (or (= 0 ~systemActive~0) (not (= ~pumpRunning~0 0)) (= ~waterLevel~0 |old(~waterLevel~0)|)) [2021-12-16 01:00:10,394 INFO L854 garLoopResultBuilder]: At program point L173(lines 168 176) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1) (or .cse0 (and (= |timeShift_isPumpRunning_#res#1| 0) (= ~waterLevel~0 |old(~waterLevel~0)|)) .cse1))) [2021-12-16 01:00:10,394 INFO L858 garLoopResultBuilder]: For program point L299(lines 299 303) no Hoare annotation was computed. [2021-12-16 01:00:10,394 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 110 133) no Hoare annotation was computed. [2021-12-16 01:00:10,394 INFO L854 garLoopResultBuilder]: At program point L138(lines 134 140) the Hoare annotation is: (or (= 0 ~systemActive~0) (not (= ~pumpRunning~0 0)) (= ~waterLevel~0 |old(~waterLevel~0)|)) [2021-12-16 01:00:10,395 INFO L854 garLoopResultBuilder]: At program point L299-2(lines 295 306) the Hoare annotation is: (or (= 0 ~systemActive~0) (not (= ~pumpRunning~0 0))) [2021-12-16 01:00:10,395 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2021-12-16 01:00:10,395 INFO L854 garLoopResultBuilder]: At program point L283(lines 234 284) the Hoare annotation is: false [2021-12-16 01:00:10,395 INFO L854 garLoopResultBuilder]: At program point L824(lines 820 826) the Hoare annotation is: (and (= 1 |ULTIMATE.start_main_~tmp~5#1|) (= ~waterLevel~0 1) (= 1 |ULTIMATE.start_valid_product_#res#1|) (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 0)) [2021-12-16 01:00:10,395 INFO L854 garLoopResultBuilder]: At program point L77(lines 73 79) the Hoare annotation is: (and (= ~waterLevel~0 1) (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 0)) [2021-12-16 01:00:10,395 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-16 01:00:10,395 INFO L858 garLoopResultBuilder]: For program point L255(lines 255 261) no Hoare annotation was computed. [2021-12-16 01:00:10,396 INFO L858 garLoopResultBuilder]: For program point L255-1(lines 255 261) no Hoare annotation was computed. [2021-12-16 01:00:10,396 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-16 01:00:10,396 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-16 01:00:10,396 INFO L854 garLoopResultBuilder]: At program point L218(lines 213 220) the Hoare annotation is: (and (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= 1 |ULTIMATE.start_main_~tmp~5#1|) (= 1 |ULTIMATE.start_valid_product_#res#1|) (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 0)) [2021-12-16 01:00:10,396 INFO L854 garLoopResultBuilder]: At program point L280(lines 235 282) the Hoare annotation is: (and (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= 1 |ULTIMATE.start_main_~tmp~5#1|) (= 1 |ULTIMATE.start_valid_product_#res#1|) (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 0)) [2021-12-16 01:00:10,396 INFO L854 garLoopResultBuilder]: At program point L247(line 247) the Hoare annotation is: (and (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= 1 |ULTIMATE.start_main_~tmp~5#1|) (= 1 |ULTIMATE.start_valid_product_#res#1|) (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 0)) [2021-12-16 01:00:10,396 INFO L861 garLoopResultBuilder]: At program point L834(lines 827 836) the Hoare annotation is: true [2021-12-16 01:00:10,397 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-16 01:00:10,397 INFO L858 garLoopResultBuilder]: For program point L273(lines 273 277) no Hoare annotation was computed. [2021-12-16 01:00:10,397 INFO L858 garLoopResultBuilder]: For program point L847(lines 847 854) no Hoare annotation was computed. [2021-12-16 01:00:10,397 INFO L854 garLoopResultBuilder]: At program point L273-2(lines 265 278) the Hoare annotation is: (and (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= 1 |ULTIMATE.start_main_~tmp~5#1|) (= 1 |ULTIMATE.start_valid_product_#res#1|) (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 0)) [2021-12-16 01:00:10,397 INFO L858 garLoopResultBuilder]: For program point L847-2(lines 847 854) no Hoare annotation was computed. [2021-12-16 01:00:10,398 INFO L858 garLoopResultBuilder]: For program point L236(lines 235 282) no Hoare annotation was computed. [2021-12-16 01:00:10,398 INFO L858 garLoopResultBuilder]: For program point L265(lines 265 278) no Hoare annotation was computed. [2021-12-16 01:00:10,398 INFO L854 garLoopResultBuilder]: At program point L257(line 257) the Hoare annotation is: (and (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= 1 |ULTIMATE.start_main_~tmp~5#1|) (= 1 |ULTIMATE.start_valid_product_#res#1|) (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 0)) [2021-12-16 01:00:10,398 INFO L861 garLoopResultBuilder]: At program point L286(lines 225 290) the Hoare annotation is: true [2021-12-16 01:00:10,398 INFO L854 garLoopResultBuilder]: At program point L92(lines 87 95) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 |ULTIMATE.start_valid_product_#res#1|) (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 0)) [2021-12-16 01:00:10,398 INFO L861 garLoopResultBuilder]: At program point L856(lines 837 859) the Hoare annotation is: true [2021-12-16 01:00:10,398 INFO L858 garLoopResultBuilder]: For program point L245(lines 245 251) no Hoare annotation was computed. [2021-12-16 01:00:10,399 INFO L854 garLoopResultBuilder]: At program point L84(lines 80 86) the Hoare annotation is: (and (= ~waterLevel~0 1) (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 0)) [2021-12-16 01:00:10,399 INFO L858 garLoopResultBuilder]: For program point L245-1(lines 245 251) no Hoare annotation was computed. [2021-12-16 01:00:10,399 INFO L858 garLoopResultBuilder]: For program point L237(lines 237 241) no Hoare annotation was computed. [2021-12-16 01:00:10,399 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 307 318) no Hoare annotation was computed. [2021-12-16 01:00:10,399 INFO L858 garLoopResultBuilder]: For program point L311-1(lines 307 318) no Hoare annotation was computed. [2021-12-16 01:00:10,399 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 307 318) the Hoare annotation is: (or (= 0 ~systemActive~0) (not (= ~pumpRunning~0 0)) (= ~waterLevel~0 |old(~waterLevel~0)|)) [2021-12-16 01:00:10,401 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-12-16 01:00:10,404 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-16 01:00:10,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 01:00:10 BoogieIcfgContainer [2021-12-16 01:00:10,425 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-16 01:00:10,425 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-16 01:00:10,425 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-16 01:00:10,426 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-16 01:00:10,426 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:00:09" (3/4) ... [2021-12-16 01:00:10,428 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-16 01:00:10,432 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-12-16 01:00:10,432 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-12-16 01:00:10,432 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-12-16 01:00:10,432 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-12-16 01:00:10,436 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2021-12-16 01:00:10,436 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-12-16 01:00:10,436 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-16 01:00:10,437 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-16 01:00:10,437 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-16 01:00:10,437 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-16 01:00:10,438 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-16 01:00:10,450 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((waterLevel == 1 && 1 == \result) && !(0 == systemActive)) && pumpRunning == 0 [2021-12-16 01:00:10,451 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((1 == tmp && waterLevel == 1) && 1 == \result) && !(0 == systemActive)) && pumpRunning == 0 [2021-12-16 01:00:10,451 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((splverifierCounter == 0 && 1 == tmp) && 1 == \result) && !(0 == systemActive)) && pumpRunning == 0 [2021-12-16 01:00:10,451 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (0 == systemActive || !(pumpRunning == 0)) || waterLevel == \old(waterLevel) [2021-12-16 01:00:10,452 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((splverifierCounter == 0 && 1 == tmp) && 1 == \result) && !(0 == systemActive)) && pumpRunning == 0 [2021-12-16 01:00:10,452 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0 == systemActive || !(\old(waterLevel) == 1)) || !(pumpRunning == 0)) || \result == 1) && ((0 == systemActive || !(pumpRunning == 0)) || waterLevel == \old(waterLevel)) [2021-12-16 01:00:10,452 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0 == systemActive || !(\old(waterLevel) == 1)) || !(pumpRunning == 0)) || (\result == 1 && tmp == 1)) && ((0 == systemActive || !(pumpRunning == 0)) || waterLevel == \old(waterLevel)) [2021-12-16 01:00:10,452 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((0 == systemActive || !(\old(waterLevel) == 1)) || !(pumpRunning == 0)) && ((0 == systemActive || (\result == 0 && waterLevel == \old(waterLevel))) || !(pumpRunning == 0)) [2021-12-16 01:00:10,464 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-16 01:00:10,464 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-16 01:00:10,464 INFO L158 Benchmark]: Toolchain (without parser) took 2027.19ms. Allocated memory was 102.8MB in the beginning and 144.7MB in the end (delta: 41.9MB). Free memory was 64.2MB in the beginning and 112.2MB in the end (delta: -47.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 01:00:10,464 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 102.8MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 01:00:10,465 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.95ms. Allocated memory is still 102.8MB. Free memory was 64.0MB in the beginning and 70.6MB in the end (delta: -6.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-16 01:00:10,465 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.33ms. Allocated memory is still 102.8MB. Free memory was 70.6MB in the beginning and 68.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-16 01:00:10,465 INFO L158 Benchmark]: Boogie Preprocessor took 41.82ms. Allocated memory is still 102.8MB. Free memory was 68.2MB in the beginning and 66.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 01:00:10,465 INFO L158 Benchmark]: RCFGBuilder took 333.15ms. Allocated memory is still 102.8MB. Free memory was 66.9MB in the beginning and 52.9MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-16 01:00:10,466 INFO L158 Benchmark]: TraceAbstraction took 1223.13ms. Allocated memory was 102.8MB in the beginning and 144.7MB in the end (delta: 41.9MB). Free memory was 52.6MB in the beginning and 116.4MB in the end (delta: -63.8MB). Peak memory consumption was 50.1MB. Max. memory is 16.1GB. [2021-12-16 01:00:10,466 INFO L158 Benchmark]: Witness Printer took 38.57ms. Allocated memory is still 144.7MB. Free memory was 116.4MB in the beginning and 112.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-16 01:00:10,467 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 102.8MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 329.95ms. Allocated memory is still 102.8MB. Free memory was 64.0MB in the beginning and 70.6MB in the end (delta: -6.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.33ms. Allocated memory is still 102.8MB. Free memory was 70.6MB in the beginning and 68.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.82ms. Allocated memory is still 102.8MB. Free memory was 68.2MB in the beginning and 66.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 333.15ms. Allocated memory is still 102.8MB. Free memory was 66.9MB in the beginning and 52.9MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1223.13ms. Allocated memory was 102.8MB in the beginning and 144.7MB in the end (delta: 41.9MB). Free memory was 52.6MB in the beginning and 116.4MB in the end (delta: -63.8MB). Peak memory consumption was 50.1MB. Max. memory is 16.1GB. * Witness Printer took 38.57ms. Allocated memory is still 144.7MB. Free memory was 116.4MB in the beginning and 112.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 54]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 59 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 188 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 183 mSDsluCounter, 621 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 321 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 60 IncrementalHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 300 mSDtfsCounter, 60 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=4, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 27 LocationsWithAnnotation, 105 PreInvPairs, 127 NumberOfFragments, 283 HoareAnnotationTreeSize, 105 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 27 FomulaSimplificationsInter, 348 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 148 NumberOfCodeBlocks, 148 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 142 ConstructedInterpolants, 0 QuantifiedInterpolants, 292 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 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: 80]: Loop Invariant Derived loop invariant: (waterLevel == 1 && !(0 == systemActive)) && pumpRunning == 0 - InvariantResult [Line: 168]: Loop Invariant Derived loop invariant: ((0 == systemActive || !(\old(waterLevel) == 1)) || !(pumpRunning == 0)) && ((0 == systemActive || (\result == 0 && waterLevel == \old(waterLevel))) || !(pumpRunning == 0)) - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: (0 == systemActive || !(pumpRunning == 0)) || waterLevel == \old(waterLevel) - InvariantResult [Line: 213]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0 && 1 == tmp) && 1 == \result) && !(0 == systemActive)) && pumpRunning == 0 - InvariantResult [Line: 766]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 363]: Loop Invariant Derived loop invariant: (((0 == systemActive || !(\old(waterLevel) == 1)) || !(pumpRunning == 0)) || \result == 1) && ((0 == systemActive || !(pumpRunning == 0)) || waterLevel == \old(waterLevel)) - InvariantResult [Line: 73]: Loop Invariant Derived loop invariant: (waterLevel == 1 && !(0 == systemActive)) && pumpRunning == 0 - InvariantResult [Line: 373]: Loop Invariant Derived loop invariant: (((0 == systemActive || !(\old(waterLevel) == 1)) || !(pumpRunning == 0)) || (\result == 1 && tmp == 1)) && ((0 == systemActive || !(pumpRunning == 0)) || waterLevel == \old(waterLevel)) - InvariantResult [Line: 235]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0 && 1 == tmp) && 1 == \result) && !(0 == systemActive)) && pumpRunning == 0 - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && 1 == \result) && !(0 == systemActive)) && pumpRunning == 0 - InvariantResult [Line: 776]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 234]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 == systemActive || !(pumpRunning == 0) - InvariantResult [Line: 837]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 295]: Loop Invariant Derived loop invariant: 0 == systemActive || !(pumpRunning == 0) - InvariantResult [Line: 820]: Loop Invariant Derived loop invariant: (((1 == tmp && waterLevel == 1) && 1 == \result) && !(0 == systemActive)) && pumpRunning == 0 - InvariantResult [Line: 827]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 225]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-12-16 01:00:10,496 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE