./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product41.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_spec3_product41.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 0cfed743c16ce3c8683c42b92f2e032d4ce7b489a9d3a5e140ec6101c472b3cb --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 15:08:19,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 15:08:19,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 15:08:19,630 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 15:08:19,630 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 15:08:19,633 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 15:08:19,634 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 15:08:19,636 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 15:08:19,637 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 15:08:19,640 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 15:08:19,641 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 15:08:19,642 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 15:08:19,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 15:08:19,644 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 15:08:19,645 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 15:08:19,647 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 15:08:19,649 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 15:08:19,649 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 15:08:19,651 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 15:08:19,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 15:08:19,656 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 15:08:19,657 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 15:08:19,658 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 15:08:19,658 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 15:08:19,660 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 15:08:19,660 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 15:08:19,660 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 15:08:19,661 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 15:08:19,661 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 15:08:19,662 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 15:08:19,662 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 15:08:19,663 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 15:08:19,664 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 15:08:19,664 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 15:08:19,665 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 15:08:19,665 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 15:08:19,666 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 15:08:19,666 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 15:08:19,666 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 15:08:19,667 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 15:08:19,667 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 15:08:19,669 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 15:08:19,693 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 15:08:19,693 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 15:08:19,694 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 15:08:19,694 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 15:08:19,695 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 15:08:19,695 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 15:08:19,695 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 15:08:19,695 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 15:08:19,696 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 15:08:19,696 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 15:08:19,696 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 15:08:19,696 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 15:08:19,697 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 15:08:19,697 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 15:08:19,697 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 15:08:19,697 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 15:08:19,697 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 15:08:19,697 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 15:08:19,697 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 15:08:19,697 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 15:08:19,698 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 15:08:19,698 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 15:08:19,698 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 15:08:19,698 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 15:08:19,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 15:08:19,698 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 15:08:19,698 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 15:08:19,699 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 15:08:19,699 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 15:08:19,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 15:08:19,700 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 15:08:19,700 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 15:08:19,700 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 15:08:19,700 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 15:08:19,700 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cfed743c16ce3c8683c42b92f2e032d4ce7b489a9d3a5e140ec6101c472b3cb [2021-12-17 15:08:19,894 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 15:08:19,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 15:08:19,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 15:08:19,918 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 15:08:19,918 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 15:08:19,919 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product41.cil.c [2021-12-17 15:08:19,966 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9ab74bb3/3ef87231896c4ae4a30e9c3b0f80ff2a/FLAG5a456abf9 [2021-12-17 15:08:20,390 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 15:08:20,390 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product41.cil.c [2021-12-17 15:08:20,408 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9ab74bb3/3ef87231896c4ae4a30e9c3b0f80ff2a/FLAG5a456abf9 [2021-12-17 15:08:20,424 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9ab74bb3/3ef87231896c4ae4a30e9c3b0f80ff2a [2021-12-17 15:08:20,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 15:08:20,427 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 15:08:20,428 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 15:08:20,429 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 15:08:20,431 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 15:08:20,431 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:08:20" (1/1) ... [2021-12-17 15:08:20,432 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f532d6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:20, skipping insertion in model container [2021-12-17 15:08:20,432 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:08:20" (1/1) ... [2021-12-17 15:08:20,437 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 15:08:20,475 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 15:08:20,712 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_spec3_product41.cil.c[17978,17991] [2021-12-17 15:08:20,715 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 15:08:20,725 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 15:08:20,786 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_spec3_product41.cil.c[17978,17991] [2021-12-17 15:08:20,787 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 15:08:20,798 INFO L208 MainTranslator]: Completed translation [2021-12-17 15:08:20,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:20 WrapperNode [2021-12-17 15:08:20,799 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 15:08:20,800 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 15:08:20,800 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 15:08:20,800 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 15:08:20,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:20" (1/1) ... [2021-12-17 15:08:20,816 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:20" (1/1) ... [2021-12-17 15:08:20,836 INFO L137 Inliner]: procedures = 53, calls = 152, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 246 [2021-12-17 15:08:20,839 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 15:08:20,839 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 15:08:20,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 15:08:20,840 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 15:08:20,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:20" (1/1) ... [2021-12-17 15:08:20,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:20" (1/1) ... [2021-12-17 15:08:20,856 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:20" (1/1) ... [2021-12-17 15:08:20,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:20" (1/1) ... [2021-12-17 15:08:20,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:20" (1/1) ... [2021-12-17 15:08:20,863 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:20" (1/1) ... [2021-12-17 15:08:20,864 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:20" (1/1) ... [2021-12-17 15:08:20,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 15:08:20,866 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 15:08:20,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 15:08:20,866 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 15:08:20,871 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:20" (1/1) ... [2021-12-17 15:08:20,876 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 15:08:20,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:08:20,892 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-17 15:08:20,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-17 15:08:20,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 15:08:20,946 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-17 15:08:20,947 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-17 15:08:20,947 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-17 15:08:20,947 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-17 15:08:20,947 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-12-17 15:08:20,947 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-12-17 15:08:20,950 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-17 15:08:20,950 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-17 15:08:20,950 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-17 15:08:20,950 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-17 15:08:20,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 15:08:20,950 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-17 15:08:20,950 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-17 15:08:20,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 15:08:20,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 15:08:21,004 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 15:08:21,005 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 15:08:21,169 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 15:08:21,174 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 15:08:21,174 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-17 15:08:21,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:08:21 BoogieIcfgContainer [2021-12-17 15:08:21,175 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 15:08:21,176 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 15:08:21,177 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 15:08:21,179 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 15:08:21,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 03:08:20" (1/3) ... [2021-12-17 15:08:21,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2980f94d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:08:21, skipping insertion in model container [2021-12-17 15:08:21,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:20" (2/3) ... [2021-12-17 15:08:21,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2980f94d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:08:21, skipping insertion in model container [2021-12-17 15:08:21,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:08:21" (3/3) ... [2021-12-17 15:08:21,181 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product41.cil.c [2021-12-17 15:08:21,184 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 15:08:21,184 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 15:08:21,212 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 15:08:21,216 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-17 15:08:21,217 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 15:08:21,228 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 63 states have (on average 1.3968253968253967) internal successors, (88), 69 states have internal predecessors, (88), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2021-12-17 15:08:21,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-17 15:08:21,233 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:21,233 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:08:21,234 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:21,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:21,237 INFO L85 PathProgramCache]: Analyzing trace with hash -310918915, now seen corresponding path program 1 times [2021-12-17 15:08:21,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:21,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249589876] [2021-12-17 15:08:21,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:21,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:21,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:21,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-17 15:08:21,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:21,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:08:21,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:21,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249589876] [2021-12-17 15:08:21,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249589876] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:21,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:21,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 15:08:21,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736908393] [2021-12-17 15:08:21,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:21,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 15:08:21,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:21,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 15:08:21,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 15:08:21,496 INFO L87 Difference]: Start difference. First operand has 81 states, 63 states have (on average 1.3968253968253967) internal successors, (88), 69 states have internal predecessors, (88), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:08:21,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:21,535 INFO L93 Difference]: Finished difference Result 154 states and 211 transitions. [2021-12-17 15:08:21,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 15:08:21,537 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2021-12-17 15:08:21,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:21,545 INFO L225 Difference]: With dead ends: 154 [2021-12-17 15:08:21,546 INFO L226 Difference]: Without dead ends: 72 [2021-12-17 15:08:21,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 15:08:21,554 INFO L933 BasicCegarLoop]: 102 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, 102 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:21,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:08:21,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-12-17 15:08:21,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2021-12-17 15:08:21,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 56 states have (on average 1.3214285714285714) internal successors, (74), 61 states have internal predecessors, (74), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2021-12-17 15:08:21,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 93 transitions. [2021-12-17 15:08:21,593 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 93 transitions. Word has length 25 [2021-12-17 15:08:21,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:21,593 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 93 transitions. [2021-12-17 15:08:21,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:08:21,594 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 93 transitions. [2021-12-17 15:08:21,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-17 15:08:21,598 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:21,598 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] [2021-12-17 15:08:21,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 15:08:21,599 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:21,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:21,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1548949891, now seen corresponding path program 1 times [2021-12-17 15:08:21,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:21,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218804934] [2021-12-17 15:08:21,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:21,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:21,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:21,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-17 15:08:21,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:21,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:08:21,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:21,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218804934] [2021-12-17 15:08:21,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218804934] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:21,672 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:21,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 15:08:21,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617378101] [2021-12-17 15:08:21,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:21,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 15:08:21,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:21,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 15:08:21,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:08:21,674 INFO L87 Difference]: Start difference. First operand 72 states and 93 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:08:21,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:21,683 INFO L93 Difference]: Finished difference Result 110 states and 142 transitions. [2021-12-17 15:08:21,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 15:08:21,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2021-12-17 15:08:21,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:21,685 INFO L225 Difference]: With dead ends: 110 [2021-12-17 15:08:21,685 INFO L226 Difference]: Without dead ends: 63 [2021-12-17 15:08:21,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:08:21,687 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 12 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:21,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 144 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:08:21,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-12-17 15:08:21,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-12-17 15:08:21,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 50 states have (on average 1.34) internal successors, (67), 55 states have internal predecessors, (67), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-12-17 15:08:21,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 81 transitions. [2021-12-17 15:08:21,696 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 81 transitions. Word has length 26 [2021-12-17 15:08:21,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:21,697 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 81 transitions. [2021-12-17 15:08:21,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:08:21,699 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 81 transitions. [2021-12-17 15:08:21,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-17 15:08:21,700 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:21,700 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] [2021-12-17 15:08:21,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 15:08:21,701 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:21,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:21,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1454917381, now seen corresponding path program 1 times [2021-12-17 15:08:21,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:21,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001110592] [2021-12-17 15:08:21,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:21,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:21,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:21,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-17 15:08:21,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:21,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:08:21,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:21,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001110592] [2021-12-17 15:08:21,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001110592] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:21,741 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:21,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 15:08:21,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324492310] [2021-12-17 15:08:21,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:21,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 15:08:21,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:21,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 15:08:21,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:08:21,744 INFO L87 Difference]: Start difference. First operand 63 states and 81 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:08:21,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:21,756 INFO L93 Difference]: Finished difference Result 119 states and 156 transitions. [2021-12-17 15:08:21,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 15:08:21,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2021-12-17 15:08:21,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:21,757 INFO L225 Difference]: With dead ends: 119 [2021-12-17 15:08:21,757 INFO L226 Difference]: Without dead ends: 63 [2021-12-17 15:08:21,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:08:21,759 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 63 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:21,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 79 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:08:21,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-12-17 15:08:21,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-12-17 15:08:21,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 50 states have (on average 1.32) internal successors, (66), 55 states have internal predecessors, (66), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-12-17 15:08:21,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 80 transitions. [2021-12-17 15:08:21,769 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 80 transitions. Word has length 30 [2021-12-17 15:08:21,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:21,770 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 80 transitions. [2021-12-17 15:08:21,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:08:21,770 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 80 transitions. [2021-12-17 15:08:21,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-17 15:08:21,771 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:21,771 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, 1, 1, 1, 1, 1] [2021-12-17 15:08:21,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-17 15:08:21,771 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:21,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:21,772 INFO L85 PathProgramCache]: Analyzing trace with hash -199527812, now seen corresponding path program 1 times [2021-12-17 15:08:21,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:21,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799276503] [2021-12-17 15:08:21,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:21,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:21,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:21,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-17 15:08:21,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:21,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 15:08:21,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:21,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:08:21,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:21,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799276503] [2021-12-17 15:08:21,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799276503] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:21,805 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:21,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 15:08:21,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101027547] [2021-12-17 15:08:21,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:21,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 15:08:21,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:21,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 15:08:21,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:08:21,807 INFO L87 Difference]: Start difference. First operand 63 states and 80 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-17 15:08:21,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:21,826 INFO L93 Difference]: Finished difference Result 160 states and 207 transitions. [2021-12-17 15:08:21,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 15:08:21,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 35 [2021-12-17 15:08:21,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:21,827 INFO L225 Difference]: With dead ends: 160 [2021-12-17 15:08:21,827 INFO L226 Difference]: Without dead ends: 104 [2021-12-17 15:08:21,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:08:21,829 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 54 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:21,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 147 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:08:21,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-12-17 15:08:21,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 102. [2021-12-17 15:08:21,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 80 states have (on average 1.3125) internal successors, (105), 87 states have internal predecessors, (105), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2021-12-17 15:08:21,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 129 transitions. [2021-12-17 15:08:21,839 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 129 transitions. Word has length 35 [2021-12-17 15:08:21,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:21,839 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 129 transitions. [2021-12-17 15:08:21,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-17 15:08:21,840 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 129 transitions. [2021-12-17 15:08:21,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-12-17 15:08:21,841 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:21,841 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:08:21,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-17 15:08:21,841 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:21,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:21,842 INFO L85 PathProgramCache]: Analyzing trace with hash -2013550284, now seen corresponding path program 1 times [2021-12-17 15:08:21,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:21,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928155337] [2021-12-17 15:08:21,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:21,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:21,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:21,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:08:21,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:21,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 15:08:21,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:21,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:08:21,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:21,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928155337] [2021-12-17 15:08:21,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928155337] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:21,935 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:21,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 15:08:21,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191712345] [2021-12-17 15:08:21,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:21,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 15:08:21,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:21,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 15:08:21,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 15:08:21,940 INFO L87 Difference]: Start difference. First operand 102 states and 129 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-17 15:08:22,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:22,012 INFO L93 Difference]: Finished difference Result 282 states and 373 transitions. [2021-12-17 15:08:22,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 15:08:22,013 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 41 [2021-12-17 15:08:22,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:22,015 INFO L225 Difference]: With dead ends: 282 [2021-12-17 15:08:22,015 INFO L226 Difference]: Without dead ends: 187 [2021-12-17 15:08:22,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:08:22,017 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 41 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:22,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 312 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:08:22,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-12-17 15:08:22,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 181. [2021-12-17 15:08:22,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 142 states have (on average 1.2887323943661972) internal successors, (183), 152 states have internal predecessors, (183), 21 states have call successors, (21), 19 states have call predecessors, (21), 17 states have return successors, (27), 19 states have call predecessors, (27), 21 states have call successors, (27) [2021-12-17 15:08:22,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 231 transitions. [2021-12-17 15:08:22,036 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 231 transitions. Word has length 41 [2021-12-17 15:08:22,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:22,037 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 231 transitions. [2021-12-17 15:08:22,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-17 15:08:22,037 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 231 transitions. [2021-12-17 15:08:22,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-17 15:08:22,039 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:22,039 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:08:22,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-17 15:08:22,039 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:22,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:22,040 INFO L85 PathProgramCache]: Analyzing trace with hash -583739890, now seen corresponding path program 1 times [2021-12-17 15:08:22,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:22,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394817875] [2021-12-17 15:08:22,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:22,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:22,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:08:22,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-17 15:08:22,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-17 15:08:22,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:08:22,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:22,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394817875] [2021-12-17 15:08:22,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394817875] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:22,163 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:22,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 15:08:22,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520354121] [2021-12-17 15:08:22,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:22,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 15:08:22,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:22,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 15:08:22,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 15:08:22,166 INFO L87 Difference]: Start difference. First operand 181 states and 231 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-17 15:08:22,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:22,345 INFO L93 Difference]: Finished difference Result 472 states and 639 transitions. [2021-12-17 15:08:22,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-17 15:08:22,346 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2021-12-17 15:08:22,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:22,348 INFO L225 Difference]: With dead ends: 472 [2021-12-17 15:08:22,349 INFO L226 Difference]: Without dead ends: 377 [2021-12-17 15:08:22,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-12-17 15:08:22,350 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 166 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:22,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 339 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:08:22,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2021-12-17 15:08:22,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 344. [2021-12-17 15:08:22,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 270 states have (on average 1.2814814814814814) internal successors, (346), 294 states have internal predecessors, (346), 40 states have call successors, (40), 29 states have call predecessors, (40), 33 states have return successors, (66), 38 states have call predecessors, (66), 40 states have call successors, (66) [2021-12-17 15:08:22,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 452 transitions. [2021-12-17 15:08:22,376 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 452 transitions. Word has length 45 [2021-12-17 15:08:22,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:22,377 INFO L470 AbstractCegarLoop]: Abstraction has 344 states and 452 transitions. [2021-12-17 15:08:22,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-17 15:08:22,377 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 452 transitions. [2021-12-17 15:08:22,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-17 15:08:22,378 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:22,378 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:08:22,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 15:08:22,379 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:22,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:22,379 INFO L85 PathProgramCache]: Analyzing trace with hash -364885172, now seen corresponding path program 1 times [2021-12-17 15:08:22,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:22,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453754385] [2021-12-17 15:08:22,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:22,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:22,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:08:22,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-17 15:08:22,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-17 15:08:22,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:08:22,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:22,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453754385] [2021-12-17 15:08:22,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453754385] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:22,415 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:22,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 15:08:22,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883673807] [2021-12-17 15:08:22,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:22,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 15:08:22,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:22,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 15:08:22,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 15:08:22,417 INFO L87 Difference]: Start difference. First operand 344 states and 452 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-17 15:08:22,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:22,534 INFO L93 Difference]: Finished difference Result 744 states and 1004 transitions. [2021-12-17 15:08:22,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:08:22,535 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2021-12-17 15:08:22,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:22,537 INFO L225 Difference]: With dead ends: 744 [2021-12-17 15:08:22,537 INFO L226 Difference]: Without dead ends: 486 [2021-12-17 15:08:22,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-17 15:08:22,539 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 152 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:22,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 370 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:08:22,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2021-12-17 15:08:22,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 377. [2021-12-17 15:08:22,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 297 states have (on average 1.2626262626262625) internal successors, (375), 324 states have internal predecessors, (375), 44 states have call successors, (44), 29 states have call predecessors, (44), 35 states have return successors, (76), 42 states have call predecessors, (76), 44 states have call successors, (76) [2021-12-17 15:08:22,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 495 transitions. [2021-12-17 15:08:22,561 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 495 transitions. Word has length 45 [2021-12-17 15:08:22,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:22,561 INFO L470 AbstractCegarLoop]: Abstraction has 377 states and 495 transitions. [2021-12-17 15:08:22,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-17 15:08:22,561 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 495 transitions. [2021-12-17 15:08:22,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-17 15:08:22,562 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:22,563 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:08:22,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-17 15:08:22,563 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:22,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:22,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1182533622, now seen corresponding path program 1 times [2021-12-17 15:08:22,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:22,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008566867] [2021-12-17 15:08:22,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:22,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:22,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:08:22,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-17 15:08:22,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-17 15:08:22,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:08:22,603 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:22,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008566867] [2021-12-17 15:08:22,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008566867] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:22,603 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:22,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 15:08:22,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144968485] [2021-12-17 15:08:22,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:22,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 15:08:22,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:22,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 15:08:22,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 15:08:22,605 INFO L87 Difference]: Start difference. First operand 377 states and 495 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-17 15:08:22,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:22,711 INFO L93 Difference]: Finished difference Result 848 states and 1136 transitions. [2021-12-17 15:08:22,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:08:22,712 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2021-12-17 15:08:22,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:22,714 INFO L225 Difference]: With dead ends: 848 [2021-12-17 15:08:22,714 INFO L226 Difference]: Without dead ends: 478 [2021-12-17 15:08:22,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-12-17 15:08:22,716 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 183 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:22,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 365 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:08:22,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2021-12-17 15:08:22,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 381. [2021-12-17 15:08:22,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 305 states have (on average 1.2459016393442623) internal successors, (380), 329 states have internal predecessors, (380), 41 states have call successors, (41), 28 states have call predecessors, (41), 34 states have return successors, (73), 39 states have call predecessors, (73), 41 states have call successors, (73) [2021-12-17 15:08:22,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 494 transitions. [2021-12-17 15:08:22,735 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 494 transitions. Word has length 45 [2021-12-17 15:08:22,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:22,736 INFO L470 AbstractCegarLoop]: Abstraction has 381 states and 494 transitions. [2021-12-17 15:08:22,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-17 15:08:22,736 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 494 transitions. [2021-12-17 15:08:22,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-17 15:08:22,737 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:22,738 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:08:22,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-17 15:08:22,738 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:22,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:22,738 INFO L85 PathProgramCache]: Analyzing trace with hash 987986838, now seen corresponding path program 1 times [2021-12-17 15:08:22,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:22,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026331709] [2021-12-17 15:08:22,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:22,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:22,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:08:22,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-17 15:08:22,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-17 15:08:22,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,792 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-17 15:08:22,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:22,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026331709] [2021-12-17 15:08:22,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026331709] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:08:22,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1294338664] [2021-12-17 15:08:22,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:22,793 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:08:22,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:08:22,794 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 15:08:22,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-17 15:08:22,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-17 15:08:22,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:08:22,998 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:08:22,998 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:08:22,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1294338664] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:22,998 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:08:22,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 9 [2021-12-17 15:08:22,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610381742] [2021-12-17 15:08:22,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:22,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:08:23,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:23,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:08:23,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 15:08:23,000 INFO L87 Difference]: Start difference. First operand 381 states and 494 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-17 15:08:23,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:23,090 INFO L93 Difference]: Finished difference Result 1129 states and 1495 transitions. [2021-12-17 15:08:23,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-17 15:08:23,090 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 50 [2021-12-17 15:08:23,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:23,093 INFO L225 Difference]: With dead ends: 1129 [2021-12-17 15:08:23,094 INFO L226 Difference]: Without dead ends: 755 [2021-12-17 15:08:23,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-12-17 15:08:23,096 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 107 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:23,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 504 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:08:23,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2021-12-17 15:08:23,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 725. [2021-12-17 15:08:23,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 578 states have (on average 1.226643598615917) internal successors, (709), 618 states have internal predecessors, (709), 80 states have call successors, (80), 55 states have call predecessors, (80), 66 states have return successors, (145), 76 states have call predecessors, (145), 80 states have call successors, (145) [2021-12-17 15:08:23,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 934 transitions. [2021-12-17 15:08:23,133 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 934 transitions. Word has length 50 [2021-12-17 15:08:23,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:23,134 INFO L470 AbstractCegarLoop]: Abstraction has 725 states and 934 transitions. [2021-12-17 15:08:23,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-17 15:08:23,134 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 934 transitions. [2021-12-17 15:08:23,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-17 15:08:23,137 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:23,137 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:08:23,158 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-17 15:08:23,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:08:23,355 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:23,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:23,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1869519007, now seen corresponding path program 1 times [2021-12-17 15:08:23,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:23,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736683009] [2021-12-17 15:08:23,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:23,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:23,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:23,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:08:23,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:23,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-17 15:08:23,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:23,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:08:23,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:23,403 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-17 15:08:23,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:23,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736683009] [2021-12-17 15:08:23,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736683009] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:23,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:23,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:08:23,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670730125] [2021-12-17 15:08:23,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:23,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:08:23,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:23,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:08:23,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:08:23,405 INFO L87 Difference]: Start difference. First operand 725 states and 934 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-17 15:08:23,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:23,575 INFO L93 Difference]: Finished difference Result 1350 states and 1757 transitions. [2021-12-17 15:08:23,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-17 15:08:23,577 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 51 [2021-12-17 15:08:23,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:23,578 INFO L225 Difference]: With dead ends: 1350 [2021-12-17 15:08:23,578 INFO L226 Difference]: Without dead ends: 281 [2021-12-17 15:08:23,581 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2021-12-17 15:08:23,582 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 190 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:23,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 389 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:08:23,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2021-12-17 15:08:23,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 270. [2021-12-17 15:08:23,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 213 states have (on average 1.192488262910798) internal successors, (254), 227 states have internal predecessors, (254), 30 states have call successors, (30), 25 states have call predecessors, (30), 26 states have return successors, (38), 28 states have call predecessors, (38), 30 states have call successors, (38) [2021-12-17 15:08:23,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 322 transitions. [2021-12-17 15:08:23,592 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 322 transitions. Word has length 51 [2021-12-17 15:08:23,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:23,592 INFO L470 AbstractCegarLoop]: Abstraction has 270 states and 322 transitions. [2021-12-17 15:08:23,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-17 15:08:23,593 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 322 transitions. [2021-12-17 15:08:23,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-12-17 15:08:23,594 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:23,594 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:08:23,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-17 15:08:23,594 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:23,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:23,595 INFO L85 PathProgramCache]: Analyzing trace with hash -400361830, now seen corresponding path program 1 times [2021-12-17 15:08:23,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:23,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705628376] [2021-12-17 15:08:23,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:23,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:23,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:23,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:08:23,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:23,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-17 15:08:23,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:23,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-17 15:08:23,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:23,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-17 15:08:23,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:23,667 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-17 15:08:23,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:23,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705628376] [2021-12-17 15:08:23,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705628376] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:23,668 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:23,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 15:08:23,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197577632] [2021-12-17 15:08:23,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:23,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-17 15:08:23,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:23,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-17 15:08:23,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-12-17 15:08:23,669 INFO L87 Difference]: Start difference. First operand 270 states and 322 transitions. Second operand has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 8 states have internal predecessors, (45), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-17 15:08:23,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:23,939 INFO L93 Difference]: Finished difference Result 527 states and 635 transitions. [2021-12-17 15:08:23,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-17 15:08:23,939 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 8 states have internal predecessors, (45), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) Word has length 54 [2021-12-17 15:08:23,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:23,940 INFO L225 Difference]: With dead ends: 527 [2021-12-17 15:08:23,940 INFO L226 Difference]: Without dead ends: 0 [2021-12-17 15:08:23,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=365, Unknown=0, NotChecked=0, Total=506 [2021-12-17 15:08:23,942 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 220 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:23,942 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 325 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:08:23,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-17 15:08:23,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-17 15:08:23,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 15:08:23,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-17 15:08:23,943 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2021-12-17 15:08:23,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:23,943 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-17 15:08:23,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 8 states have internal predecessors, (45), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-17 15:08:23,943 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-17 15:08:23,944 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-17 15:08:23,945 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 15:08:23,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-17 15:08:23,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-17 15:08:27,202 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 125 131) no Hoare annotation was computed. [2021-12-17 15:08:27,203 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 125 131) the Hoare annotation is: true [2021-12-17 15:08:27,203 INFO L858 garLoopResultBuilder]: For program point L402-1(lines 398 409) no Hoare annotation was computed. [2021-12-17 15:08:27,203 INFO L854 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 398 409) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~methaneLevelCritical~0)| 0)) .cse0 (= ~methaneLevelCritical~0 0)) (or (not (= ~pumpRunning~0 0)) .cse0 (not (= |old(~methaneLevelCritical~0)| ~systemActive~0)) (= ~methaneLevelCritical~0 ~systemActive~0)))) [2021-12-17 15:08:27,203 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 398 409) no Hoare annotation was computed. [2021-12-17 15:08:27,203 INFO L858 garLoopResultBuilder]: For program point L481(lines 481 485) no Hoare annotation was computed. [2021-12-17 15:08:27,203 INFO L861 garLoopResultBuilder]: At program point L481-1(lines 481 485) the Hoare annotation is: true [2021-12-17 15:08:27,203 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 467 496) no Hoare annotation was computed. [2021-12-17 15:08:27,204 INFO L858 garLoopResultBuilder]: For program point L478(line 478) no Hoare annotation was computed. [2021-12-17 15:08:27,204 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 467 496) the Hoare annotation is: true [2021-12-17 15:08:27,204 INFO L861 garLoopResultBuilder]: At program point L477-2(lines 477 491) the Hoare annotation is: true [2021-12-17 15:08:27,205 INFO L861 garLoopResultBuilder]: At program point L473(line 473) the Hoare annotation is: true [2021-12-17 15:08:27,205 INFO L858 garLoopResultBuilder]: For program point L473-1(line 473) no Hoare annotation was computed. [2021-12-17 15:08:27,205 INFO L861 garLoopResultBuilder]: At program point L492(lines 467 496) the Hoare annotation is: true [2021-12-17 15:08:27,205 INFO L858 garLoopResultBuilder]: For program point L488(line 488) no Hoare annotation was computed. [2021-12-17 15:08:27,205 INFO L861 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 410 418) the Hoare annotation is: true [2021-12-17 15:08:27,205 INFO L858 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 410 418) no Hoare annotation was computed. [2021-12-17 15:08:27,205 INFO L858 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 410 418) no Hoare annotation was computed. [2021-12-17 15:08:27,208 INFO L858 garLoopResultBuilder]: For program point L353(lines 353 366) no Hoare annotation was computed. [2021-12-17 15:08:27,209 INFO L854 garLoopResultBuilder]: At program point L353-1(lines 338 370) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse5 (= ~pumpRunning~0 0)) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (= |timeShift_isHighWaterLevel_~tmp~2#1| 0)) (.cse8 (= |timeShift_isHighWaterLevel_#res#1| 1)) (.cse9 (= |timeShift_processEnvironment_~tmp~0#1| 1)) (.cse10 (= |timeShift_isHighWaterLevel_~tmp___0~0#1| 1)) (.cse11 (= |timeShift_isHighWaterSensorDry_#res#1| 0)) (.cse1 (not (= 0 ~pumpRunning~0))) (.cse2 (not (= ~waterLevel~0 2))) (.cse3 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse12 (= |timeShift_activatePump_~tmp~1#1| 0))) (and (or .cse0 (= 0 |old(~pumpRunning~0)|) .cse1) (let ((.cse4 (not (= 0 |timeShift___utac_acc__Specification3_spec__1_~tmp~4#1|)))) (or .cse0 (not (= ~methaneLevelCritical~0 ~systemActive~0)) (and .cse2 .cse3 .cse4 .cse5) .cse6 (and .cse7 .cse8 .cse9 .cse10 .cse3 .cse4 .cse11 .cse5) (and .cse7 .cse8 .cse9 .cse10 .cse3 .cse12 .cse11 .cse1) (and .cse2 .cse3 .cse12 .cse1))) (let ((.cse13 (= |timeShift_isMethaneAlarm_#res#1| 0))) (or .cse0 (and .cse2 .cse3 .cse5) .cse6 (and .cse7 .cse8 .cse9 .cse10 .cse3 .cse12 .cse13 .cse11 .cse1) (not (= ~methaneLevelCritical~0 0)) (and .cse2 .cse3 .cse12 .cse13))))) [2021-12-17 15:08:27,209 INFO L858 garLoopResultBuilder]: For program point L378(lines 378 382) no Hoare annotation was computed. [2021-12-17 15:08:27,210 INFO L854 garLoopResultBuilder]: At program point L345(line 345) the Hoare annotation is: (let ((.cse9 (not (= ~waterLevel~0 2))) (.cse6 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse8 (= ~pumpRunning~0 0))) (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse12 (and .cse9 .cse6 .cse8)) (.cse11 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= |timeShift_isHighWaterLevel_~tmp~2#1| 0)) (.cse3 (= |timeShift_isHighWaterLevel_#res#1| 1)) (.cse4 (= |timeShift_processEnvironment_~tmp~0#1| 1)) (.cse5 (= |timeShift_isHighWaterLevel_~tmp___0~0#1| 1)) (.cse7 (= |timeShift_isHighWaterSensorDry_#res#1| 0)) (.cse1 (not (= 0 ~pumpRunning~0))) (.cse10 (= |timeShift_activatePump_~tmp~1#1| 0))) (and (or .cse0 (= 0 |old(~pumpRunning~0)|) .cse1) (or (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) .cse0 (not (= ~methaneLevelCritical~0 ~systemActive~0)) (and .cse9 .cse6 .cse10) (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse10 .cse7) .cse11 .cse12) (let ((.cse13 (= |timeShift_isMethaneAlarm_#res#1| 0))) (or .cse0 .cse12 .cse11 (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse10 .cse13 .cse7 .cse1) (not (= ~methaneLevelCritical~0 0)) (and .cse9 .cse6 .cse10 .cse13)))))) [2021-12-17 15:08:27,210 INFO L854 garLoopResultBuilder]: At program point L378-2(lines 374 385) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (= 0 |old(~pumpRunning~0)|) (not (= 0 ~pumpRunning~0))) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or .cse0 (not (= ~methaneLevelCritical~0 ~systemActive~0)) .cse1))) [2021-12-17 15:08:27,210 INFO L858 garLoopResultBuilder]: For program point L345-1(line 345) no Hoare annotation was computed. [2021-12-17 15:08:27,210 INFO L854 garLoopResultBuilder]: At program point L147(line 147) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (and (not (= ~waterLevel~0 2)) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 ~systemActive~0)) .cse1) (or .cse0 (= 0 |old(~pumpRunning~0)|)) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))))) [2021-12-17 15:08:27,210 INFO L854 garLoopResultBuilder]: At program point L263(lines 248 266) the Hoare annotation is: (let ((.cse3 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse4 (= ~pumpRunning~0 0))) (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (and (not (= ~waterLevel~0 2)) .cse3 .cse4)) (.cse2 (and (= |timeShift_isHighWaterLevel_~tmp~2#1| 0) (= |timeShift_isHighWaterLevel_#res#1| 1) (= |timeShift_isHighWaterLevel_~tmp___0~0#1| 1) .cse3 (= |timeShift_isHighWaterSensorDry_#res#1| 0) .cse4))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2) (or .cse0 (= 0 |old(~pumpRunning~0)|)) (or .cse0 (not (= ~methaneLevelCritical~0 ~systemActive~0)) .cse1 .cse2)))) [2021-12-17 15:08:27,211 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 101 124) no Hoare annotation was computed. [2021-12-17 15:08:27,211 INFO L854 garLoopResultBuilder]: At program point L197(line 197) the Hoare annotation is: (let ((.cse3 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse4 (= ~pumpRunning~0 0))) (let ((.cse0 (and (= |timeShift_isHighWaterLevel_~tmp~2#1| 0) (= |timeShift_isHighWaterLevel_#res#1| 1) (= |timeShift_processEnvironment_~tmp~0#1| 1) (= |timeShift_isHighWaterLevel_~tmp___0~0#1| 1) .cse3 (= |timeShift_isHighWaterSensorDry_#res#1| 0) .cse4)) (.cse2 (and (not (= ~waterLevel~0 2)) .cse3 .cse4)) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 ~systemActive~0)) .cse2) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) (or .cse1 (= 0 |old(~pumpRunning~0)|))))) [2021-12-17 15:08:27,211 INFO L858 garLoopResultBuilder]: For program point L197-1(line 197) no Hoare annotation was computed. [2021-12-17 15:08:27,211 INFO L858 garLoopResultBuilder]: For program point L932(line 932) no Hoare annotation was computed. [2021-12-17 15:08:27,211 INFO L854 garLoopResultBuilder]: At program point L152(line 152) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (= 0 |old(~pumpRunning~0)|) (not (= 0 ~pumpRunning~0))) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or .cse0 (not (= ~methaneLevelCritical~0 ~systemActive~0)) .cse1))) [2021-12-17 15:08:27,211 INFO L854 garLoopResultBuilder]: At program point L152-1(lines 133 157) the Hoare annotation is: (let ((.cse9 (not (= ~waterLevel~0 2))) (.cse6 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse8 (= ~pumpRunning~0 0))) (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse12 (and .cse9 .cse6 .cse8)) (.cse11 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= |timeShift_isHighWaterLevel_~tmp~2#1| 0)) (.cse3 (= |timeShift_isHighWaterLevel_#res#1| 1)) (.cse4 (= |timeShift_processEnvironment_~tmp~0#1| 1)) (.cse5 (= |timeShift_isHighWaterLevel_~tmp___0~0#1| 1)) (.cse7 (= |timeShift_isHighWaterSensorDry_#res#1| 0)) (.cse1 (not (= 0 ~pumpRunning~0))) (.cse10 (= |timeShift_activatePump_~tmp~1#1| 0))) (and (or .cse0 (= 0 |old(~pumpRunning~0)|) .cse1) (or (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) .cse0 (not (= ~methaneLevelCritical~0 ~systemActive~0)) (and .cse9 .cse6 .cse10) (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse10 .cse7) .cse11 .cse12) (let ((.cse13 (= |timeShift_isMethaneAlarm_#res#1| 0))) (or .cse0 .cse12 .cse11 (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse10 .cse13 .cse7 .cse1) (not (= ~methaneLevelCritical~0 0)) (and .cse9 .cse6 .cse10 .cse13)))))) [2021-12-17 15:08:27,212 INFO L854 garLoopResultBuilder]: At program point L933(lines 928 935) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0))) (or .cse0 (not (= ~methaneLevelCritical~0 ~systemActive~0))) (or .cse0 (= 0 |old(~pumpRunning~0)|)))) [2021-12-17 15:08:27,212 INFO L858 garLoopResultBuilder]: For program point L347(lines 347 367) no Hoare annotation was computed. [2021-12-17 15:08:27,212 INFO L858 garLoopResultBuilder]: For program point L112-1(lines 112 118) no Hoare annotation was computed. [2021-12-17 15:08:27,212 INFO L858 garLoopResultBuilder]: For program point L174(lines 174 180) no Hoare annotation was computed. [2021-12-17 15:08:27,212 INFO L858 garLoopResultBuilder]: For program point L141(lines 141 149) no Hoare annotation was computed. [2021-12-17 15:08:27,213 INFO L854 garLoopResultBuilder]: At program point L174-2(lines 167 183) the Hoare annotation is: (let ((.cse5 (not (= 1 ~systemActive~0))) (.cse6 (= |timeShift_isHighWaterLevel_~tmp~2#1| 0)) (.cse7 (= |timeShift_isHighWaterLevel_#res#1| 1)) (.cse8 (= |timeShift_processEnvironment_~tmp~0#1| 1)) (.cse9 (= |timeShift_isHighWaterLevel_~tmp___0~0#1| 1)) (.cse2 (= |timeShift_activatePump_~tmp~1#1| 0)) (.cse10 (= |timeShift_isHighWaterSensorDry_#res#1| 0)) (.cse0 (not (= ~waterLevel~0 2))) (.cse1 (= ~waterLevel~0 |old(~waterLevel~0)|))) (and (let ((.cse3 (= |timeShift_isMethaneAlarm_#res#1| 0)) (.cse4 (not (= 0 ~pumpRunning~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) .cse5 (and .cse6 .cse7 .cse8 .cse9 .cse1 .cse2 .cse3 .cse10 .cse4) (not (= ~methaneLevelCritical~0 0)))) (or .cse5 (= 0 |old(~pumpRunning~0)|)) (let ((.cse11 (= ~pumpRunning~0 0))) (or (and .cse6 .cse7 .cse8 .cse9 .cse1 .cse10 .cse11) .cse5 (not (= ~methaneLevelCritical~0 ~systemActive~0)) (and .cse0 .cse1 .cse2) (and .cse6 .cse7 .cse8 .cse9 .cse1 .cse2 .cse10) (and .cse0 .cse1 .cse11))))) [2021-12-17 15:08:27,214 INFO L858 garLoopResultBuilder]: For program point L137(lines 137 154) no Hoare annotation was computed. [2021-12-17 15:08:27,214 INFO L858 garLoopResultBuilder]: For program point L455(lines 455 461) no Hoare annotation was computed. [2021-12-17 15:08:27,214 INFO L854 garLoopResultBuilder]: At program point L199(lines 192 202) the Hoare annotation is: (let ((.cse1 (= |timeShift_isHighWaterLevel_~tmp~2#1| 0)) (.cse2 (= |timeShift_isHighWaterLevel_#res#1| 1)) (.cse3 (= |timeShift_processEnvironment_~tmp~0#1| 1)) (.cse4 (= |timeShift_isHighWaterLevel_~tmp___0~0#1| 1)) (.cse7 (= |timeShift_isHighWaterSensorDry_#res#1| 0)) (.cse9 (not (= ~waterLevel~0 2))) (.cse5 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse8 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (let ((.cse6 (= |timeShift_isMethaneAlarm_#res#1| 0))) (or .cse0 (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse9 .cse5 .cse6 .cse8) (not (= ~methaneLevelCritical~0 0)))) (or (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse7 .cse8) .cse0 (not (= ~methaneLevelCritical~0 ~systemActive~0)) (and .cse9 .cse5 .cse8)) (or .cse0 (= 0 |old(~pumpRunning~0)|)))) [2021-12-17 15:08:27,214 INFO L858 garLoopResultBuilder]: For program point L257(lines 257 261) no Hoare annotation was computed. [2021-12-17 15:08:27,215 INFO L858 garLoopResultBuilder]: For program point L257-2(lines 257 261) no Hoare annotation was computed. [2021-12-17 15:08:27,215 INFO L854 garLoopResultBuilder]: At program point L447(lines 442 450) the Hoare annotation is: (let ((.cse15 (not (= ~waterLevel~0 2))) (.cse12 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse13 (= |timeShift_activatePump_~tmp~1#1| 0)) (.cse16 (not (= 2 |timeShift_getWaterLevel_#res#1|))) (.cse1 (not (= 0 ~pumpRunning~0)))) (let ((.cse8 (= |timeShift_isHighWaterLevel_~tmp~2#1| 0)) (.cse9 (= |timeShift_isHighWaterLevel_#res#1| 1)) (.cse10 (= |timeShift_processEnvironment_~tmp~0#1| 1)) (.cse11 (= |timeShift_isHighWaterLevel_~tmp___0~0#1| 1)) (.cse14 (= |timeShift_isHighWaterSensorDry_#res#1| 0)) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse6 (and .cse15 .cse12 .cse13 .cse16 .cse1)) (.cse2 (not (= |old(~waterLevel~0)| 1))) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (= |timeShift_getWaterLevel_#res#1| 1)) (.cse7 (not (= ~methaneLevelCritical~0 ~systemActive~0))) (.cse4 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (= 0 |old(~pumpRunning~0)|) .cse1) (or .cse2 .cse0 .cse3 .cse4 .cse5) (or .cse6 .cse0 .cse7 .cse4 (and .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse1)) (let ((.cse17 (= |timeShift_isMethaneAlarm_#res#1| 0))) (or (and .cse15 .cse12 .cse16 (= ~pumpRunning~0 0)) .cse0 .cse4 (and .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse17 .cse14 .cse1) .cse5 (and .cse15 .cse12 .cse13 .cse16 .cse17))) (or .cse6 (= |old(~waterLevel~0)| 2) .cse0 .cse7 .cse4) (or .cse2 .cse0 .cse3 .cse7 .cse4)))) [2021-12-17 15:08:27,215 INFO L854 garLoopResultBuilder]: At program point L208(lines 203 211) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 ~systemActive~0))) (.cse3 (= |timeShift_isHighWaterLevel_~tmp~2#1| 0)) (.cse4 (= |timeShift_isHighWaterLevel_#res#1| 1)) (.cse5 (= |timeShift_processEnvironment_~tmp~0#1| 1)) (.cse6 (= |timeShift_isHighWaterLevel_~tmp___0~0#1| 1)) (.cse7 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse8 (= |timeShift_activatePump_~tmp~1#1| 0)) (.cse10 (= |timeShift_isHighWaterSensorDry_#res#1| 0)) (.cse9 (not (= 0 |timeShift_isPumpRunning_#res#1|))) (.cse11 (not (= 0 ~pumpRunning~0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse12 (not (= ~methaneLevelCritical~0 0)))) (and (or (= |old(~waterLevel~0)| 2) .cse0 .cse1 .cse2) (or (and .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) .cse0 .cse1 .cse2) (or (and .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (= |timeShift_isMethaneAlarm_#res#1| 0) .cse10 .cse11) .cse0 .cse2 .cse12) (or .cse0 (= 0 |old(~pumpRunning~0)|) (and .cse9 .cse11)) (or (not (= |old(~waterLevel~0)| 1)) .cse0 .cse2 .cse12))) [2021-12-17 15:08:27,215 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 101 124) the Hoare annotation is: (let ((.cse1 (= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse2 (and .cse1 (= ~pumpRunning~0 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and .cse1 (not (= 0 ~pumpRunning~0))) (= 0 |old(~pumpRunning~0)|)) (or .cse2 .cse0 .cse3 (not (= ~methaneLevelCritical~0 0))) (or .cse2 .cse0 (not (= ~methaneLevelCritical~0 ~systemActive~0)) .cse3)))) [2021-12-17 15:08:27,216 INFO L854 garLoopResultBuilder]: At program point L460(lines 451 464) the Hoare annotation is: (let ((.cse3 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse4 (= ~pumpRunning~0 0))) (let ((.cse0 (and .cse3 (= |timeShift_isHighWaterSensorDry_#res#1| 0) .cse4)) (.cse2 (and (not (= ~waterLevel~0 2)) .cse3 .cse4)) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 ~systemActive~0)) .cse2) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) (or .cse1 (= 0 |old(~pumpRunning~0)|))))) [2021-12-17 15:08:27,221 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 101 124) no Hoare annotation was computed. [2021-12-17 15:08:27,222 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 932) no Hoare annotation was computed. [2021-12-17 15:08:27,222 INFO L858 garLoopResultBuilder]: For program point L105-1(lines 104 123) no Hoare annotation was computed. [2021-12-17 15:08:27,222 INFO L858 garLoopResultBuilder]: For program point L357(lines 357 363) no Hoare annotation was computed. [2021-12-17 15:08:27,222 INFO L854 garLoopResultBuilder]: At program point L163(lines 158 165) the Hoare annotation is: (let ((.cse5 (not (= 1 ~systemActive~0))) (.cse6 (= |timeShift_isHighWaterLevel_~tmp~2#1| 0)) (.cse7 (= |timeShift_isHighWaterLevel_#res#1| 1)) (.cse8 (= |timeShift_processEnvironment_~tmp~0#1| 1)) (.cse9 (= |timeShift_isHighWaterLevel_~tmp___0~0#1| 1)) (.cse10 (= |timeShift_isHighWaterSensorDry_#res#1| 0)) (.cse0 (not (= ~waterLevel~0 2))) (.cse1 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse2 (= |timeShift_activatePump_~tmp~1#1| 0)) (.cse4 (not (= 0 ~pumpRunning~0)))) (and (let ((.cse3 (= |timeShift_isMethaneAlarm_#res#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) .cse5 (and .cse6 .cse7 .cse8 .cse9 .cse1 .cse2 .cse3 .cse10 .cse4) (not (= ~methaneLevelCritical~0 0)))) (or .cse5 (= 0 |old(~pumpRunning~0)|)) (or .cse5 (not (= ~methaneLevelCritical~0 ~systemActive~0)) (and .cse6 .cse7 .cse8 .cse9 .cse1 .cse2 .cse10 .cse4) (and .cse0 .cse1 .cse2 .cse4)))) [2021-12-17 15:08:27,222 INFO L858 garLoopResultBuilder]: For program point L283(lines 283 287) no Hoare annotation was computed. [2021-12-17 15:08:27,222 INFO L861 garLoopResultBuilder]: At program point L535(lines 528 537) the Hoare annotation is: true [2021-12-17 15:08:27,222 INFO L858 garLoopResultBuilder]: For program point L548(lines 548 555) no Hoare annotation was computed. [2021-12-17 15:08:27,222 INFO L858 garLoopResultBuilder]: For program point L548-2(lines 548 555) no Hoare annotation was computed. [2021-12-17 15:08:27,223 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-17 15:08:27,223 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-17 15:08:27,223 INFO L858 garLoopResultBuilder]: For program point L317(lines 317 321) no Hoare annotation was computed. [2021-12-17 15:08:27,223 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-17 15:08:27,223 INFO L854 garLoopResultBuilder]: At program point L317-2(lines 311 322) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (= ~systemActive~0 1))) (or (and .cse0 (= ~methaneLevelCritical~0 ~systemActive~0) .cse1) (and .cse0 (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) (and .cse0 (not (= 0 ~pumpRunning~0)) .cse1))) [2021-12-17 15:08:27,223 INFO L858 garLoopResultBuilder]: For program point L301(lines 301 307) no Hoare annotation was computed. [2021-12-17 15:08:27,223 INFO L861 garLoopResultBuilder]: At program point L557(lines 538 560) the Hoare annotation is: true [2021-12-17 15:08:27,224 INFO L858 garLoopResultBuilder]: For program point L301-1(lines 301 307) no Hoare annotation was computed. [2021-12-17 15:08:27,224 INFO L861 garLoopResultBuilder]: At program point L330(lines 271 334) the Hoare annotation is: true [2021-12-17 15:08:27,224 INFO L854 garLoopResultBuilder]: At program point L293(line 293) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (= ~systemActive~0 1))) (or (and .cse0 (= ~methaneLevelCritical~0 ~systemActive~0) .cse1) (and .cse0 (not (= ~waterLevel~0 2)) (= ~methaneLevelCritical~0 0) .cse1) (and .cse0 (not (= 0 ~pumpRunning~0)) .cse1))) [2021-12-17 15:08:27,224 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-17 15:08:27,224 INFO L854 garLoopResultBuilder]: At program point L83(lines 78 86) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:08:27,224 INFO L854 garLoopResultBuilder]: At program point L525(lines 521 527) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:08:27,224 INFO L854 garLoopResultBuilder]: At program point L75(lines 71 77) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:08:27,224 INFO L854 garLoopResultBuilder]: At program point L327(lines 280 328) the Hoare annotation is: false [2021-12-17 15:08:27,225 INFO L858 garLoopResultBuilder]: For program point L282(lines 281 326) no Hoare annotation was computed. [2021-12-17 15:08:27,225 INFO L858 garLoopResultBuilder]: For program point L311(lines 311 322) no Hoare annotation was computed. [2021-12-17 15:08:27,225 INFO L854 garLoopResultBuilder]: At program point L303(line 303) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (= ~systemActive~0 1))) (or (and .cse0 (= ~methaneLevelCritical~0 ~systemActive~0) .cse1) (and .cse0 (= ~methaneLevelCritical~0 0) .cse1) (and .cse0 (not (= 0 ~pumpRunning~0)) .cse1))) [2021-12-17 15:08:27,225 INFO L854 garLoopResultBuilder]: At program point L68(lines 64 70) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:08:27,225 INFO L854 garLoopResultBuilder]: At program point L324(lines 281 326) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (= ~systemActive~0 1))) (or (and .cse0 (= ~methaneLevelCritical~0 ~systemActive~0) .cse1) (and .cse0 (not (= ~waterLevel~0 2)) (= ~methaneLevelCritical~0 0) .cse1) (and .cse0 (not (= 0 ~pumpRunning~0)) .cse1))) [2021-12-17 15:08:27,225 INFO L858 garLoopResultBuilder]: For program point L291(lines 291 297) no Hoare annotation was computed. [2021-12-17 15:08:27,225 INFO L858 garLoopResultBuilder]: For program point L291-1(lines 291 297) no Hoare annotation was computed. [2021-12-17 15:08:27,226 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 386 397) no Hoare annotation was computed. [2021-12-17 15:08:27,226 INFO L858 garLoopResultBuilder]: For program point L390-1(lines 386 397) no Hoare annotation was computed. [2021-12-17 15:08:27,226 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 386 397) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or (= |old(~waterLevel~0)| 2) .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or .cse0 (= 0 ~pumpRunning~0) .cse1) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 ~systemActive~0))))) [2021-12-17 15:08:27,228 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:08:27,229 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 15:08:27,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 03:08:27 BoogieIcfgContainer [2021-12-17 15:08:27,271 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 15:08:27,272 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 15:08:27,272 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 15:08:27,272 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 15:08:27,272 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:08:21" (3/4) ... [2021-12-17 15:08:27,288 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-17 15:08:27,292 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-12-17 15:08:27,292 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-12-17 15:08:27,292 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-12-17 15:08:27,292 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2021-12-17 15:08:27,292 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-12-17 15:08:27,293 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-12-17 15:08:27,298 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 50 nodes and edges [2021-12-17 15:08:27,299 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-12-17 15:08:27,300 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-17 15:08:27,300 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-17 15:08:27,300 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-17 15:08:27,300 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 15:08:27,301 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 15:08:27,317 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || 0 == \old(pumpRunning)) || !(0 == pumpRunning)) && ((!(1 == systemActive) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0))) && ((!(1 == systemActive) || !(methaneLevelCritical == systemActive)) || !(\old(pumpRunning) == 0)) [2021-12-17 15:08:27,318 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || 0 == \old(pumpRunning)) || !(0 == pumpRunning)) && ((((((((((((tmp == 0 && \result == 1) && tmp == 1) && tmp___0 == 1) && waterLevel == \old(waterLevel)) && \result == 0) && pumpRunning == 0) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || ((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && tmp == 0)) || ((((((tmp == 0 && \result == 1) && tmp == 1) && tmp___0 == 1) && waterLevel == \old(waterLevel)) && tmp == 0) && \result == 0)) || !(\old(pumpRunning) == 0)) || ((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && pumpRunning == 0))) && (((((!(1 == systemActive) || ((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && pumpRunning == 0)) || !(\old(pumpRunning) == 0)) || ((((((((tmp == 0 && \result == 1) && tmp == 1) && tmp___0 == 1) && waterLevel == \old(waterLevel)) && tmp == 0) && \result == 0) && \result == 0) && !(0 == pumpRunning))) || !(methaneLevelCritical == 0)) || (((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && tmp == 0) && \result == 0)) [2021-12-17 15:08:27,319 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || 0 == \old(pumpRunning)) || !(0 == pumpRunning)) && ((((((!(1 == systemActive) || !(methaneLevelCritical == systemActive)) || (((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && !(0 == tmp)) && pumpRunning == 0)) || !(\old(pumpRunning) == 0)) || (((((((tmp == 0 && \result == 1) && tmp == 1) && tmp___0 == 1) && waterLevel == \old(waterLevel)) && !(0 == tmp)) && \result == 0) && pumpRunning == 0)) || (((((((tmp == 0 && \result == 1) && tmp == 1) && tmp___0 == 1) && waterLevel == \old(waterLevel)) && tmp == 0) && \result == 0) && !(0 == pumpRunning))) || (((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && tmp == 0) && !(0 == pumpRunning)))) && (((((!(1 == systemActive) || ((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && pumpRunning == 0)) || !(\old(pumpRunning) == 0)) || ((((((((tmp == 0 && \result == 1) && tmp == 1) && tmp___0 == 1) && waterLevel == \old(waterLevel)) && tmp == 0) && \result == 0) && \result == 0) && !(0 == pumpRunning))) || !(methaneLevelCritical == 0)) || (((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && tmp == 0) && \result == 0)) [2021-12-17 15:08:27,320 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(1 == systemActive) || (((((((tmp == 0 && \result == 1) && tmp == 1) && tmp___0 == 1) && waterLevel == \old(waterLevel)) && \result == 0) && \result == 0) && pumpRunning == 0)) || (((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && \result == 0) && pumpRunning == 0)) || !(methaneLevelCritical == 0)) && (((((((((tmp == 0 && \result == 1) && tmp == 1) && tmp___0 == 1) && waterLevel == \old(waterLevel)) && \result == 0) && pumpRunning == 0) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || ((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && pumpRunning == 0))) && (!(1 == systemActive) || 0 == \old(pumpRunning)) [2021-12-17 15:08:27,320 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(1 == systemActive) || 0 == \old(pumpRunning)) || !(0 == pumpRunning)) && ((((!(\old(waterLevel) == 1) || !(1 == systemActive)) || \result == 1) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0))) && ((((((((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && tmp == 0) && !(2 == \result)) && !(0 == pumpRunning)) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(\old(pumpRunning) == 0)) || (((((((tmp == 0 && \result == 1) && tmp == 1) && tmp___0 == 1) && waterLevel == \old(waterLevel)) && tmp == 0) && \result == 0) && !(0 == pumpRunning)))) && ((((((((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && !(2 == \result)) && pumpRunning == 0) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || ((((((((tmp == 0 && \result == 1) && tmp == 1) && tmp___0 == 1) && waterLevel == \old(waterLevel)) && tmp == 0) && \result == 0) && \result == 0) && !(0 == pumpRunning))) || !(methaneLevelCritical == 0)) || ((((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && tmp == 0) && !(2 == \result)) && \result == 0))) && ((((((((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && tmp == 0) && !(2 == \result)) && !(0 == pumpRunning)) || \old(waterLevel) == 2) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(\old(pumpRunning) == 0))) && ((((!(\old(waterLevel) == 1) || !(1 == systemActive)) || \result == 1) || !(methaneLevelCritical == systemActive)) || !(\old(pumpRunning) == 0)) [2021-12-17 15:08:27,320 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((waterLevel == \old(waterLevel) && \result == 0) && pumpRunning == 0) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || ((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && pumpRunning == 0)) && (((((waterLevel == \old(waterLevel) && \result == 0) && pumpRunning == 0) || !(1 == systemActive)) || ((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && pumpRunning == 0)) || !(methaneLevelCritical == 0))) && (!(1 == systemActive) || 0 == \old(pumpRunning)) [2021-12-17 15:08:27,320 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && tmp == 0) && \result == 0) && !(0 == pumpRunning)) || !(1 == systemActive)) || ((((((((tmp == 0 && \result == 1) && tmp == 1) && tmp___0 == 1) && waterLevel == \old(waterLevel)) && tmp == 0) && \result == 0) && \result == 0) && !(0 == pumpRunning))) || !(methaneLevelCritical == 0)) && (!(1 == systemActive) || 0 == \old(pumpRunning))) && (((((((((((tmp == 0 && \result == 1) && tmp == 1) && tmp___0 == 1) && waterLevel == \old(waterLevel)) && \result == 0) && pumpRunning == 0) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || ((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && tmp == 0)) || ((((((tmp == 0 && \result == 1) && tmp == 1) && tmp___0 == 1) && waterLevel == \old(waterLevel)) && tmp == 0) && \result == 0)) || ((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && pumpRunning == 0)) [2021-12-17 15:08:27,320 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && tmp == 0) && \result == 0) && !(0 == pumpRunning)) || !(1 == systemActive)) || ((((((((tmp == 0 && \result == 1) && tmp == 1) && tmp___0 == 1) && waterLevel == \old(waterLevel)) && tmp == 0) && \result == 0) && \result == 0) && !(0 == pumpRunning))) || !(methaneLevelCritical == 0)) && (!(1 == systemActive) || 0 == \old(pumpRunning))) && (((!(1 == systemActive) || !(methaneLevelCritical == systemActive)) || (((((((tmp == 0 && \result == 1) && tmp == 1) && tmp___0 == 1) && waterLevel == \old(waterLevel)) && tmp == 0) && \result == 0) && !(0 == pumpRunning))) || (((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && tmp == 0) && !(0 == pumpRunning))) [2021-12-17 15:08:27,320 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(1 == systemActive) || ((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && pumpRunning == 0)) || !(methaneLevelCritical == 0)) || (((((tmp == 0 && \result == 1) && tmp___0 == 1) && waterLevel == \old(waterLevel)) && \result == 0) && pumpRunning == 0)) && (!(1 == systemActive) || 0 == \old(pumpRunning))) && (((!(1 == systemActive) || !(methaneLevelCritical == systemActive)) || ((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && pumpRunning == 0)) || (((((tmp == 0 && \result == 1) && tmp___0 == 1) && waterLevel == \old(waterLevel)) && \result == 0) && pumpRunning == 0)) [2021-12-17 15:08:27,320 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\old(waterLevel) == 2 || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(\old(pumpRunning) == 0)) && (((((((((((tmp == 0 && \result == 1) && tmp == 1) && tmp___0 == 1) && waterLevel == \old(waterLevel)) && tmp == 0) && !(0 == \result)) && \result == 0) && !(0 == pumpRunning)) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(\old(pumpRunning) == 0))) && ((((((((((((tmp == 0 && \result == 1) && tmp == 1) && tmp___0 == 1) && waterLevel == \old(waterLevel)) && tmp == 0) && !(0 == \result)) && \result == 0) && \result == 0) && !(0 == pumpRunning)) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0))) && ((!(1 == systemActive) || 0 == \old(pumpRunning)) || (!(0 == \result) && !(0 == pumpRunning)))) && (((!(\old(waterLevel) == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) [2021-12-17 15:08:27,321 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || !(methaneLevelCritical == 0)) && (!(1 == systemActive) || !(methaneLevelCritical == systemActive))) && (!(1 == systemActive) || 0 == \old(pumpRunning)) [2021-12-17 15:08:27,334 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 15:08:27,334 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 15:08:27,334 INFO L158 Benchmark]: Toolchain (without parser) took 6906.99ms. Allocated memory was 121.6MB in the beginning and 211.8MB in the end (delta: 90.2MB). Free memory was 89.6MB in the beginning and 129.2MB in the end (delta: -39.5MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2021-12-17 15:08:27,334 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 79.7MB. Free memory was 37.4MB in the beginning and 37.3MB in the end (delta: 36.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 15:08:27,335 INFO L158 Benchmark]: CACSL2BoogieTranslator took 370.67ms. Allocated memory is still 121.6MB. Free memory was 89.3MB in the beginning and 87.7MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-17 15:08:27,335 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.17ms. Allocated memory is still 121.6MB. Free memory was 87.7MB in the beginning and 85.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 15:08:27,335 INFO L158 Benchmark]: Boogie Preprocessor took 25.95ms. Allocated memory is still 121.6MB. Free memory was 85.2MB in the beginning and 83.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 15:08:27,335 INFO L158 Benchmark]: RCFGBuilder took 309.76ms. Allocated memory is still 121.6MB. Free memory was 83.9MB in the beginning and 68.1MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-17 15:08:27,335 INFO L158 Benchmark]: TraceAbstraction took 6094.87ms. Allocated memory was 121.6MB in the beginning and 211.8MB in the end (delta: 90.2MB). Free memory was 67.4MB in the beginning and 135.5MB in the end (delta: -68.1MB). Peak memory consumption was 78.4MB. Max. memory is 16.1GB. [2021-12-17 15:08:27,336 INFO L158 Benchmark]: Witness Printer took 61.97ms. Allocated memory is still 211.8MB. Free memory was 135.5MB in the beginning and 129.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-17 15:08:27,337 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 79.7MB. Free memory was 37.4MB in the beginning and 37.3MB in the end (delta: 36.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 370.67ms. Allocated memory is still 121.6MB. Free memory was 89.3MB in the beginning and 87.7MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.17ms. Allocated memory is still 121.6MB. Free memory was 87.7MB in the beginning and 85.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.95ms. Allocated memory is still 121.6MB. Free memory was 85.2MB in the beginning and 83.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 309.76ms. Allocated memory is still 121.6MB. Free memory was 83.9MB in the beginning and 68.1MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6094.87ms. Allocated memory was 121.6MB in the beginning and 211.8MB in the end (delta: 90.2MB). Free memory was 67.4MB in the beginning and 135.5MB in the end (delta: -68.1MB). Peak memory consumption was 78.4MB. Max. memory is 16.1GB. * Witness Printer took 61.97ms. Allocated memory is still 211.8MB. Free memory was 135.5MB in the beginning and 129.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 932]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.0s, OverallIterations: 11, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1217 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1188 mSDsluCounter, 3076 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2071 mSDsCounter, 226 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 849 IncrementalHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 226 mSolverCounterUnsat, 1005 mSDtfsCounter, 849 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 194 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=725occurred in iteration=9, InterpolantAutomatonStates: 79, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 288 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 37 LocationsWithAnnotation, 1191 PreInvPairs, 1494 NumberOfFragments, 1935 HoareAnnotationTreeSize, 1191 FomulaSimplifications, 4932 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 37 FomulaSimplificationsInter, 17160 FormulaSimplificationTreeSizeReductionInter, 2.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 497 NumberOfCodeBlocks, 497 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 485 ConstructedInterpolants, 0 QuantifiedInterpolants, 992 SizeOfPredicates, 4 NumberOfNonLiveVariables, 363 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 12 InterpolantComputations, 11 PerfectInterpolantSequences, 10/12 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: 521]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && methaneLevelCritical == 0) && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 467]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 442]: Loop Invariant Derived loop invariant: ((((((!(1 == systemActive) || 0 == \old(pumpRunning)) || !(0 == pumpRunning)) && ((((!(\old(waterLevel) == 1) || !(1 == systemActive)) || \result == 1) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0))) && ((((((((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && tmp == 0) && !(2 == \result)) && !(0 == pumpRunning)) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(\old(pumpRunning) == 0)) || (((((((tmp == 0 && \result == 1) && tmp == 1) && tmp___0 == 1) && waterLevel == \old(waterLevel)) && tmp == 0) && \result == 0) && !(0 == pumpRunning)))) && ((((((((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && !(2 == \result)) && pumpRunning == 0) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || ((((((((tmp == 0 && \result == 1) && tmp == 1) && tmp___0 == 1) && waterLevel == \old(waterLevel)) && tmp == 0) && \result == 0) && \result == 0) && !(0 == pumpRunning))) || !(methaneLevelCritical == 0)) || ((((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && tmp == 0) && !(2 == \result)) && \result == 0))) && ((((((((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && tmp == 0) && !(2 == \result)) && !(0 == pumpRunning)) || \old(waterLevel) == 2) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(\old(pumpRunning) == 0))) && ((((!(\old(waterLevel) == 1) || !(1 == systemActive)) || \result == 1) || !(methaneLevelCritical == systemActive)) || !(\old(pumpRunning) == 0)) - InvariantResult [Line: 477]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 528]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 280]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 451]: Loop Invariant Derived loop invariant: ((((((waterLevel == \old(waterLevel) && \result == 0) && pumpRunning == 0) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || ((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && pumpRunning == 0)) && (((((waterLevel == \old(waterLevel) && \result == 0) && pumpRunning == 0) || !(1 == systemActive)) || ((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && pumpRunning == 0)) || !(methaneLevelCritical == 0))) && (!(1 == systemActive) || 0 == \old(pumpRunning)) - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: ((((((\old(waterLevel) == 2 || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(\old(pumpRunning) == 0)) && (((((((((((tmp == 0 && \result == 1) && tmp == 1) && tmp___0 == 1) && waterLevel == \old(waterLevel)) && tmp == 0) && !(0 == \result)) && \result == 0) && !(0 == pumpRunning)) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(\old(pumpRunning) == 0))) && ((((((((((((tmp == 0 && \result == 1) && tmp == 1) && tmp___0 == 1) && waterLevel == \old(waterLevel)) && tmp == 0) && !(0 == \result)) && \result == 0) && \result == 0) && !(0 == pumpRunning)) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0))) && ((!(1 == systemActive) || 0 == \old(pumpRunning)) || (!(0 == \result) && !(0 == pumpRunning)))) && (((!(\old(waterLevel) == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && methaneLevelCritical == 0) && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && methaneLevelCritical == 0) && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 928]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || !(methaneLevelCritical == 0)) && (!(1 == systemActive) || !(methaneLevelCritical == systemActive))) && (!(1 == systemActive) || 0 == \old(pumpRunning)) - InvariantResult [Line: 192]: Loop Invariant Derived loop invariant: ((((!(1 == systemActive) || (((((((tmp == 0 && \result == 1) && tmp == 1) && tmp___0 == 1) && waterLevel == \old(waterLevel)) && \result == 0) && \result == 0) && pumpRunning == 0)) || (((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && \result == 0) && pumpRunning == 0)) || !(methaneLevelCritical == 0)) && (((((((((tmp == 0 && \result == 1) && tmp == 1) && tmp___0 == 1) && waterLevel == \old(waterLevel)) && \result == 0) && pumpRunning == 0) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || ((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && pumpRunning == 0))) && (!(1 == systemActive) || 0 == \old(pumpRunning)) - InvariantResult [Line: 158]: Loop Invariant Derived loop invariant: ((((((((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && tmp == 0) && \result == 0) && !(0 == pumpRunning)) || !(1 == systemActive)) || ((((((((tmp == 0 && \result == 1) && tmp == 1) && tmp___0 == 1) && waterLevel == \old(waterLevel)) && tmp == 0) && \result == 0) && \result == 0) && !(0 == pumpRunning))) || !(methaneLevelCritical == 0)) && (!(1 == systemActive) || 0 == \old(pumpRunning))) && (((!(1 == systemActive) || !(methaneLevelCritical == systemActive)) || (((((((tmp == 0 && \result == 1) && tmp == 1) && tmp___0 == 1) && waterLevel == \old(waterLevel)) && tmp == 0) && \result == 0) && !(0 == pumpRunning))) || (((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && tmp == 0) && !(0 == pumpRunning))) - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && methaneLevelCritical == 0) && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 374]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || 0 == \old(pumpRunning)) || !(0 == pumpRunning)) && ((!(1 == systemActive) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0))) && ((!(1 == systemActive) || !(methaneLevelCritical == systemActive)) || !(\old(pumpRunning) == 0)) - InvariantResult [Line: 248]: Loop Invariant Derived loop invariant: ((((!(1 == systemActive) || ((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && pumpRunning == 0)) || !(methaneLevelCritical == 0)) || (((((tmp == 0 && \result == 1) && tmp___0 == 1) && waterLevel == \old(waterLevel)) && \result == 0) && pumpRunning == 0)) && (!(1 == systemActive) || 0 == \old(pumpRunning))) && (((!(1 == systemActive) || !(methaneLevelCritical == systemActive)) || ((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && pumpRunning == 0)) || (((((tmp == 0 && \result == 1) && tmp___0 == 1) && waterLevel == \old(waterLevel)) && \result == 0) && pumpRunning == 0)) - InvariantResult [Line: 338]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || 0 == \old(pumpRunning)) || !(0 == pumpRunning)) && ((((((!(1 == systemActive) || !(methaneLevelCritical == systemActive)) || (((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && !(0 == tmp)) && pumpRunning == 0)) || !(\old(pumpRunning) == 0)) || (((((((tmp == 0 && \result == 1) && tmp == 1) && tmp___0 == 1) && waterLevel == \old(waterLevel)) && !(0 == tmp)) && \result == 0) && pumpRunning == 0)) || (((((((tmp == 0 && \result == 1) && tmp == 1) && tmp___0 == 1) && waterLevel == \old(waterLevel)) && tmp == 0) && \result == 0) && !(0 == pumpRunning))) || (((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && tmp == 0) && !(0 == pumpRunning)))) && (((((!(1 == systemActive) || ((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && pumpRunning == 0)) || !(\old(pumpRunning) == 0)) || ((((((((tmp == 0 && \result == 1) && tmp == 1) && tmp___0 == 1) && waterLevel == \old(waterLevel)) && tmp == 0) && \result == 0) && \result == 0) && !(0 == pumpRunning))) || !(methaneLevelCritical == 0)) || (((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && tmp == 0) && \result == 0)) - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: ((((((((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && tmp == 0) && \result == 0) && !(0 == pumpRunning)) || !(1 == systemActive)) || ((((((((tmp == 0 && \result == 1) && tmp == 1) && tmp___0 == 1) && waterLevel == \old(waterLevel)) && tmp == 0) && \result == 0) && \result == 0) && !(0 == pumpRunning))) || !(methaneLevelCritical == 0)) && (!(1 == systemActive) || 0 == \old(pumpRunning))) && (((((((((((tmp == 0 && \result == 1) && tmp == 1) && tmp___0 == 1) && waterLevel == \old(waterLevel)) && \result == 0) && pumpRunning == 0) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || ((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && tmp == 0)) || ((((((tmp == 0 && \result == 1) && tmp == 1) && tmp___0 == 1) && waterLevel == \old(waterLevel)) && tmp == 0) && \result == 0)) || ((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && pumpRunning == 0)) - InvariantResult [Line: 538]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || 0 == \old(pumpRunning)) || !(0 == pumpRunning)) && ((((((((((((tmp == 0 && \result == 1) && tmp == 1) && tmp___0 == 1) && waterLevel == \old(waterLevel)) && \result == 0) && pumpRunning == 0) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || ((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && tmp == 0)) || ((((((tmp == 0 && \result == 1) && tmp == 1) && tmp___0 == 1) && waterLevel == \old(waterLevel)) && tmp == 0) && \result == 0)) || !(\old(pumpRunning) == 0)) || ((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && pumpRunning == 0))) && (((((!(1 == systemActive) || ((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && pumpRunning == 0)) || !(\old(pumpRunning) == 0)) || ((((((((tmp == 0 && \result == 1) && tmp == 1) && tmp___0 == 1) && waterLevel == \old(waterLevel)) && tmp == 0) && \result == 0) && \result == 0) && !(0 == pumpRunning))) || !(methaneLevelCritical == 0)) || (((!(waterLevel == 2) && waterLevel == \old(waterLevel)) && tmp == 0) && \result == 0)) - InvariantResult [Line: 281]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0 && methaneLevelCritical == systemActive) && systemActive == 1) || (((splverifierCounter == 0 && !(waterLevel == 2)) && methaneLevelCritical == 0) && systemActive == 1)) || ((splverifierCounter == 0 && !(0 == pumpRunning)) && systemActive == 1) - InvariantResult [Line: 271]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-12-17 15:08:27,382 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