./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product42.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_product42.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 449370313253a0d5d7b509b2cd15e912fe8e85dcb7140575e7078385cf7fc6cf --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 15:08:19,623 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 15:08:19,625 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 15:08:19,659 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 15:08:19,662 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 15:08:19,665 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 15:08:19,667 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 15:08:19,669 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 15:08:19,670 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 15:08:19,675 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 15:08:19,675 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 15:08:19,676 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 15:08:19,677 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 15:08:19,679 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 15:08:19,681 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 15:08:19,682 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 15:08:19,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 15:08:19,684 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 15:08:19,688 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 15:08:19,689 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 15:08:19,692 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 15:08:19,693 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 15:08:19,694 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 15:08:19,695 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 15:08:19,697 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 15:08:19,698 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 15:08:19,698 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 15:08:19,699 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 15:08:19,700 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 15:08:19,701 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 15:08:19,701 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 15:08:19,701 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 15:08:19,703 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 15:08:19,703 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 15:08:19,704 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 15:08:19,725 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 15:08:19,725 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 15:08:19,726 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 15:08:19,726 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 15:08:19,726 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 15:08:19,727 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 15:08:19,728 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 15:08:19,764 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 15:08:19,765 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 15:08:19,765 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 15:08:19,765 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 15:08:19,766 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 15:08:19,766 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 15:08:19,766 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 15:08:19,766 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 15:08:19,767 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 15:08:19,767 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 15:08:19,767 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 15:08:19,767 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 15:08:19,768 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 15:08:19,768 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 15:08:19,768 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 15:08:19,768 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 15:08:19,768 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 15:08:19,768 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 15:08:19,768 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 15:08:19,769 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 15:08:19,769 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 15:08:19,769 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 15:08:19,769 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 15:08:19,769 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 15:08:19,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 15:08:19,769 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 15:08:19,770 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 15:08:19,770 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 15:08:19,770 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 15:08:19,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 15:08:19,770 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 15:08:19,770 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 15:08:19,771 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 15:08:19,771 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 15:08:19,771 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 449370313253a0d5d7b509b2cd15e912fe8e85dcb7140575e7078385cf7fc6cf [2021-12-17 15:08:19,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 15:08:19,979 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 15:08:19,981 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 15:08:19,982 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 15:08:19,983 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 15:08:19,986 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product42.cil.c [2021-12-17 15:08:20,047 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24811aa51/63b745a5f5674a8b9066f2d763f6d147/FLAGe0315a40f [2021-12-17 15:08:20,470 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 15:08:20,471 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product42.cil.c [2021-12-17 15:08:20,479 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24811aa51/63b745a5f5674a8b9066f2d763f6d147/FLAGe0315a40f [2021-12-17 15:08:20,827 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24811aa51/63b745a5f5674a8b9066f2d763f6d147 [2021-12-17 15:08:20,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 15:08:20,829 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 15:08:20,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 15:08:20,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 15:08:20,833 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 15:08:20,834 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:08:20" (1/1) ... [2021-12-17 15:08:20,834 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ba56ab6 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 15:08:20,834 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:08:20" (1/1) ... [2021-12-17 15:08:20,839 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 15:08:20,874 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 15:08:21,009 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_product42.cil.c[7477,7490] [2021-12-17 15:08:21,067 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 15:08:21,081 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 15:08:21,117 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_product42.cil.c[7477,7490] [2021-12-17 15:08:21,144 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 15:08:21,167 INFO L208 MainTranslator]: Completed translation [2021-12-17 15:08:21,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:21 WrapperNode [2021-12-17 15:08:21,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 15:08:21,169 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 15:08:21,169 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 15:08:21,169 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 15:08:21,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:21" (1/1) ... [2021-12-17 15:08:21,184 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:21" (1/1) ... [2021-12-17 15:08:21,232 INFO L137 Inliner]: procedures = 54, calls = 153, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 249 [2021-12-17 15:08:21,237 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 15:08:21,237 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 15:08:21,238 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 15:08:21,238 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 15:08:21,243 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:21" (1/1) ... [2021-12-17 15:08:21,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:21" (1/1) ... [2021-12-17 15:08:21,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:21" (1/1) ... [2021-12-17 15:08:21,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:21" (1/1) ... [2021-12-17 15:08:21,260 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:21" (1/1) ... [2021-12-17 15:08:21,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:21" (1/1) ... [2021-12-17 15:08:21,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:21" (1/1) ... [2021-12-17 15:08:21,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 15:08:21,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 15:08:21,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 15:08:21,267 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 15:08:21,268 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:21" (1/1) ... [2021-12-17 15:08:21,283 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 15:08:21,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:08:21,303 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 15:08:21,322 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 15:08:21,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 15:08:21,334 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-17 15:08:21,334 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-17 15:08:21,334 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-12-17 15:08:21,334 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-12-17 15:08:21,334 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-17 15:08:21,334 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-17 15:08:21,335 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-17 15:08:21,335 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-17 15:08:21,335 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-17 15:08:21,335 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-17 15:08:21,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 15:08:21,335 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-17 15:08:21,336 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-17 15:08:21,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 15:08:21,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 15:08:21,403 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 15:08:21,405 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 15:08:21,579 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 15:08:21,584 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 15:08:21,585 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-17 15:08:21,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:08:21 BoogieIcfgContainer [2021-12-17 15:08:21,586 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 15:08:21,587 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 15:08:21,588 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 15:08:21,590 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 15:08:21,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 03:08:20" (1/3) ... [2021-12-17 15:08:21,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7558b793 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 15:08:21,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:21" (2/3) ... [2021-12-17 15:08:21,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7558b793 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 15:08:21,591 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 15:08:21,592 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product42.cil.c [2021-12-17 15:08:21,596 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 15:08:21,596 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 15:08:21,630 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 15:08:21,635 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 15:08:21,636 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 15:08:21,654 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 64 states have (on average 1.390625) internal successors, (89), 70 states have internal predecessors, (89), 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 15:08:21,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-17 15:08:21,660 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:21,661 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 15:08:21,662 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:21,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:21,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1617756963, now seen corresponding path program 1 times [2021-12-17 15:08:21,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:21,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908538606] [2021-12-17 15:08:21,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:21,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:21,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:21,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-17 15:08:21,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:21,900 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 15:08:21,901 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:21,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908538606] [2021-12-17 15:08:21,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908538606] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:21,903 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:21,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 15:08:21,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939488478] [2021-12-17 15:08:21,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:21,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 15:08:21,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:21,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 15:08:21,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 15:08:21,945 INFO L87 Difference]: Start difference. First operand has 82 states, 64 states have (on average 1.390625) internal successors, (89), 70 states have internal predecessors, (89), 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 15:08:21,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:21,993 INFO L93 Difference]: Finished difference Result 156 states and 213 transitions. [2021-12-17 15:08:21,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 15:08:21,995 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 15:08:21,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:22,004 INFO L225 Difference]: With dead ends: 156 [2021-12-17 15:08:22,004 INFO L226 Difference]: Without dead ends: 73 [2021-12-17 15:08:22,012 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 15:08:22,016 INFO L933 BasicCegarLoop]: 103 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, 103 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 15:08:22,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:08:22,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-12-17 15:08:22,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2021-12-17 15:08:22,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 57 states have (on average 1.3157894736842106) internal successors, (75), 62 states have internal predecessors, (75), 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 15:08:22,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 94 transitions. [2021-12-17 15:08:22,073 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 94 transitions. Word has length 25 [2021-12-17 15:08:22,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:22,073 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 94 transitions. [2021-12-17 15:08:22,074 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 15:08:22,074 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 94 transitions. [2021-12-17 15:08:22,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-17 15:08:22,079 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:22,079 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 15:08:22,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 15:08:22,080 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:22,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:22,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1176803179, now seen corresponding path program 1 times [2021-12-17 15:08:22,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:22,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419870997] [2021-12-17 15:08:22,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:22,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:22,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-17 15:08:22,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,191 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 15:08:22,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:22,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419870997] [2021-12-17 15:08:22,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419870997] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:22,193 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:22,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 15:08:22,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726695634] [2021-12-17 15:08:22,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:22,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 15:08:22,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:22,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 15:08:22,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:08:22,197 INFO L87 Difference]: Start difference. First operand 73 states and 94 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 15:08:22,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:22,214 INFO L93 Difference]: Finished difference Result 111 states and 143 transitions. [2021-12-17 15:08:22,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 15:08:22,214 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 15:08:22,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:22,219 INFO L225 Difference]: With dead ends: 111 [2021-12-17 15:08:22,221 INFO L226 Difference]: Without dead ends: 64 [2021-12-17 15:08:22,227 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 15:08:22,228 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 13 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 145 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 15:08:22,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 145 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:08:22,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-12-17 15:08:22,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2021-12-17 15:08:22,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 51 states have (on average 1.3333333333333333) internal successors, (68), 56 states have internal predecessors, (68), 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 15:08:22,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 82 transitions. [2021-12-17 15:08:22,246 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 82 transitions. Word has length 26 [2021-12-17 15:08:22,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:22,246 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 82 transitions. [2021-12-17 15:08:22,247 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 15:08:22,247 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 82 transitions. [2021-12-17 15:08:22,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-17 15:08:22,249 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:22,249 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] [2021-12-17 15:08:22,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 15:08:22,249 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:22,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:22,250 INFO L85 PathProgramCache]: Analyzing trace with hash 414343402, now seen corresponding path program 1 times [2021-12-17 15:08:22,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:22,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002853207] [2021-12-17 15:08:22,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:22,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:22,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-17 15:08:22,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,328 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 15:08:22,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:22,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002853207] [2021-12-17 15:08:22,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002853207] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:22,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:22,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 15:08:22,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031243722] [2021-12-17 15:08:22,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:22,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 15:08:22,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:22,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 15:08:22,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 15:08:22,332 INFO L87 Difference]: Start difference. First operand 64 states and 82 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 15:08:22,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:22,472 INFO L93 Difference]: Finished difference Result 121 states and 158 transitions. [2021-12-17 15:08:22,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 15:08:22,473 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 31 [2021-12-17 15:08:22,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:22,474 INFO L225 Difference]: With dead ends: 121 [2021-12-17 15:08:22,474 INFO L226 Difference]: Without dead ends: 64 [2021-12-17 15:08:22,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:08:22,475 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 107 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:22,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 193 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:08:22,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-12-17 15:08:22,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2021-12-17 15:08:22,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 51 states have (on average 1.3137254901960784) internal successors, (67), 56 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 15:08:22,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 81 transitions. [2021-12-17 15:08:22,489 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 81 transitions. Word has length 31 [2021-12-17 15:08:22,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:22,490 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 81 transitions. [2021-12-17 15:08:22,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 15:08:22,490 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 81 transitions. [2021-12-17 15:08:22,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-17 15:08:22,491 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:22,491 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] [2021-12-17 15:08:22,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-17 15:08:22,491 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:22,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:22,492 INFO L85 PathProgramCache]: Analyzing trace with hash 808202887, now seen corresponding path program 1 times [2021-12-17 15:08:22,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:22,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702974046] [2021-12-17 15:08:22,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:22,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:22,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-17 15:08:22,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:08:22,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,522 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 15:08:22,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:22,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702974046] [2021-12-17 15:08:22,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702974046] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:22,523 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:22,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 15:08:22,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362291409] [2021-12-17 15:08:22,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:22,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 15:08:22,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:22,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 15:08:22,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:08:22,524 INFO L87 Difference]: Start difference. First operand 64 states and 81 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 15:08:22,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:22,554 INFO L93 Difference]: Finished difference Result 163 states and 210 transitions. [2021-12-17 15:08:22,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 15:08:22,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 36 [2021-12-17 15:08:22,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:22,556 INFO L225 Difference]: With dead ends: 163 [2021-12-17 15:08:22,556 INFO L226 Difference]: Without dead ends: 106 [2021-12-17 15:08:22,556 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 15:08:22,557 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 54 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 149 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 15:08:22,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 149 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:08:22,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-12-17 15:08:22,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 104. [2021-12-17 15:08:22,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 82 states have (on average 1.3048780487804879) internal successors, (107), 89 states have internal predecessors, (107), 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 15:08:22,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 131 transitions. [2021-12-17 15:08:22,568 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 131 transitions. Word has length 36 [2021-12-17 15:08:22,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:22,568 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 131 transitions. [2021-12-17 15:08:22,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 15:08:22,568 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 131 transitions. [2021-12-17 15:08:22,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-17 15:08:22,571 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:22,571 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] [2021-12-17 15:08:22,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-17 15:08:22,571 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:22,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:22,572 INFO L85 PathProgramCache]: Analyzing trace with hash 165647039, now seen corresponding path program 1 times [2021-12-17 15:08:22,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:22,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600666580] [2021-12-17 15:08:22,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:22,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:22,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-17 15:08:22,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-17 15:08:22,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,625 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 15:08:22,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:22,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600666580] [2021-12-17 15:08:22,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600666580] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:22,626 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:22,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 15:08:22,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576448877] [2021-12-17 15:08:22,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:22,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 15:08:22,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:22,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 15:08:22,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 15:08:22,628 INFO L87 Difference]: Start difference. First operand 104 states and 131 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 15:08:22,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:22,673 INFO L93 Difference]: Finished difference Result 288 states and 379 transitions. [2021-12-17 15:08:22,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 15:08:22,673 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 42 [2021-12-17 15:08:22,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:22,675 INFO L225 Difference]: With dead ends: 288 [2021-12-17 15:08:22,675 INFO L226 Difference]: Without dead ends: 191 [2021-12-17 15:08:22,676 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 15:08:22,687 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 41 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 316 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 15:08:22,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 316 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:08:22,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2021-12-17 15:08:22,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 185. [2021-12-17 15:08:22,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 146 states have (on average 1.2808219178082192) internal successors, (187), 156 states have internal predecessors, (187), 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 15:08:22,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 235 transitions. [2021-12-17 15:08:22,709 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 235 transitions. Word has length 42 [2021-12-17 15:08:22,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:22,710 INFO L470 AbstractCegarLoop]: Abstraction has 185 states and 235 transitions. [2021-12-17 15:08:22,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 15:08:22,710 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 235 transitions. [2021-12-17 15:08:22,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-17 15:08:22,711 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:22,712 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, 1] [2021-12-17 15:08:22,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-17 15:08:22,712 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:22,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:22,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1345519451, now seen corresponding path program 1 times [2021-12-17 15:08:22,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:22,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396293898] [2021-12-17 15:08:22,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:22,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:22,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:08:22,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 15:08:22,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-17 15:08:22,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,768 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 15:08:22,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:22,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396293898] [2021-12-17 15:08:22,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396293898] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:22,769 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:22,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 15:08:22,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501186872] [2021-12-17 15:08:22,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:22,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 15:08:22,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:22,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 15:08:22,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 15:08:22,770 INFO L87 Difference]: Start difference. First operand 185 states and 235 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 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 15:08:23,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:23,027 INFO L93 Difference]: Finished difference Result 469 states and 631 transitions. [2021-12-17 15:08:23,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:08:23,028 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 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 46 [2021-12-17 15:08:23,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:23,031 INFO L225 Difference]: With dead ends: 469 [2021-12-17 15:08:23,031 INFO L226 Difference]: Without dead ends: 372 [2021-12-17 15:08:23,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 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 15:08:23,033 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 164 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:23,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 328 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 15:08:23,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2021-12-17 15:08:23,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 348. [2021-12-17 15:08:23,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 277 states have (on average 1.2707581227436824) internal successors, (352), 300 states have internal predecessors, (352), 39 states have call successors, (39), 27 states have call predecessors, (39), 31 states have return successors, (59), 37 states have call predecessors, (59), 39 states have call successors, (59) [2021-12-17 15:08:23,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 450 transitions. [2021-12-17 15:08:23,060 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 450 transitions. Word has length 46 [2021-12-17 15:08:23,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:23,060 INFO L470 AbstractCegarLoop]: Abstraction has 348 states and 450 transitions. [2021-12-17 15:08:23,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 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 15:08:23,061 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 450 transitions. [2021-12-17 15:08:23,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-17 15:08:23,062 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:23,062 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, 1] [2021-12-17 15:08:23,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 15:08:23,062 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:23,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:23,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1126664733, now seen corresponding path program 1 times [2021-12-17 15:08:23,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:23,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5407176] [2021-12-17 15:08:23,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:23,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:23,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:23,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:08:23,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:23,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 15:08:23,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:23,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-17 15:08:23,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:23,106 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 15:08:23,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:23,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5407176] [2021-12-17 15:08:23,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5407176] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:23,107 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:23,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 15:08:23,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45519228] [2021-12-17 15:08:23,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:23,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 15:08:23,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:23,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 15:08:23,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 15:08:23,109 INFO L87 Difference]: Start difference. First operand 348 states and 450 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 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 15:08:23,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:23,251 INFO L93 Difference]: Finished difference Result 721 states and 948 transitions. [2021-12-17 15:08:23,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:08:23,252 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 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 46 [2021-12-17 15:08:23,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:23,254 INFO L225 Difference]: With dead ends: 721 [2021-12-17 15:08:23,254 INFO L226 Difference]: Without dead ends: 457 [2021-12-17 15:08:23,255 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 15:08:23,256 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 152 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 374 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 15:08:23,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 374 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:08:23,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2021-12-17 15:08:23,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 348. [2021-12-17 15:08:23,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 277 states have (on average 1.263537906137184) internal successors, (350), 300 states have internal predecessors, (350), 39 states have call successors, (39), 27 states have call predecessors, (39), 31 states have return successors, (59), 37 states have call predecessors, (59), 39 states have call successors, (59) [2021-12-17 15:08:23,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 448 transitions. [2021-12-17 15:08:23,281 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 448 transitions. Word has length 46 [2021-12-17 15:08:23,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:23,281 INFO L470 AbstractCegarLoop]: Abstraction has 348 states and 448 transitions. [2021-12-17 15:08:23,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 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 15:08:23,282 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 448 transitions. [2021-12-17 15:08:23,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-17 15:08:23,283 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:23,283 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, 1] [2021-12-17 15:08:23,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-17 15:08:23,283 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:23,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:23,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1944313183, now seen corresponding path program 1 times [2021-12-17 15:08:23,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:23,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561004035] [2021-12-17 15:08:23,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:23,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:23,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:23,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:08:23,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:23,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 15:08:23,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:23,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-17 15:08:23,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:23,319 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 15:08:23,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:23,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561004035] [2021-12-17 15:08:23,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561004035] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:23,320 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:23,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 15:08:23,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653127507] [2021-12-17 15:08:23,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:23,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 15:08:23,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:23,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 15:08:23,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 15:08:23,321 INFO L87 Difference]: Start difference. First operand 348 states and 448 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 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 15:08:23,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:23,441 INFO L93 Difference]: Finished difference Result 791 states and 1037 transitions. [2021-12-17 15:08:23,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:08:23,441 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 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 46 [2021-12-17 15:08:23,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:23,444 INFO L225 Difference]: With dead ends: 791 [2021-12-17 15:08:23,444 INFO L226 Difference]: Without dead ends: 450 [2021-12-17 15:08:23,445 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 15:08:23,446 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 176 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:23,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 380 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:08:23,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2021-12-17 15:08:23,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 353. [2021-12-17 15:08:23,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 285 states have (on average 1.249122807017544) internal successors, (356), 306 states have internal predecessors, (356), 37 states have call successors, (37), 26 states have call predecessors, (37), 30 states have return successors, (57), 35 states have call predecessors, (57), 37 states have call successors, (57) [2021-12-17 15:08:23,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 450 transitions. [2021-12-17 15:08:23,470 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 450 transitions. Word has length 46 [2021-12-17 15:08:23,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:23,471 INFO L470 AbstractCegarLoop]: Abstraction has 353 states and 450 transitions. [2021-12-17 15:08:23,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 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 15:08:23,471 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 450 transitions. [2021-12-17 15:08:23,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-17 15:08:23,473 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:23,473 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 15:08:23,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-17 15:08:23,473 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:23,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:23,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1025339665, now seen corresponding path program 1 times [2021-12-17 15:08:23,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:23,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358313003] [2021-12-17 15:08:23,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:23,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:23,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:23,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:08:23,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:23,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 15:08:23,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:23,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:08:23,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:23,530 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 15:08:23,530 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:23,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358313003] [2021-12-17 15:08:23,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358313003] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:08:23,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181195797] [2021-12-17 15:08:23,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:23,531 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:08:23,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:08:23,539 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 15:08:23,575 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 15:08:23,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:23,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-17 15:08:23,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:08:23,824 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 15:08:23,824 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:08:23,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181195797] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:23,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:08:23,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 9 [2021-12-17 15:08:23,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918159231] [2021-12-17 15:08:23,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:23,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:08:23,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:23,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:08:23,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 15:08:23,826 INFO L87 Difference]: Start difference. First operand 353 states and 450 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 5 states have internal predecessors, (44), 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 15:08:23,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:23,914 INFO L93 Difference]: Finished difference Result 1076 states and 1397 transitions. [2021-12-17 15:08:23,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-17 15:08:23,914 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 5 states have internal predecessors, (44), 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 51 [2021-12-17 15:08:23,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:23,917 INFO L225 Difference]: With dead ends: 1076 [2021-12-17 15:08:23,917 INFO L226 Difference]: Without dead ends: 730 [2021-12-17 15:08:23,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 54 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 15:08:23,919 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 107 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:23,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 499 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:08:23,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2021-12-17 15:08:23,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 700. [2021-12-17 15:08:23,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 563 states have (on average 1.2255772646536411) internal successors, (690), 598 states have internal predecessors, (690), 75 states have call successors, (75), 51 states have call predecessors, (75), 61 states have return successors, (125), 71 states have call predecessors, (125), 75 states have call successors, (125) [2021-12-17 15:08:23,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 890 transitions. [2021-12-17 15:08:23,949 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 890 transitions. Word has length 51 [2021-12-17 15:08:23,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:23,950 INFO L470 AbstractCegarLoop]: Abstraction has 700 states and 890 transitions. [2021-12-17 15:08:23,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 5 states have internal predecessors, (44), 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 15:08:23,950 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 890 transitions. [2021-12-17 15:08:23,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-12-17 15:08:23,951 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:23,951 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] [2021-12-17 15:08:23,971 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 15:08:24,168 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 15:08:24,168 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:24,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:24,169 INFO L85 PathProgramCache]: Analyzing trace with hash 468700430, now seen corresponding path program 1 times [2021-12-17 15:08:24,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:24,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086581707] [2021-12-17 15:08:24,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:24,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:24,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:24,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:08:24,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:24,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 15:08:24,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:24,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-17 15:08:24,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:24,222 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 15:08:24,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:24,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086581707] [2021-12-17 15:08:24,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086581707] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:24,223 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:24,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 15:08:24,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148301420] [2021-12-17 15:08:24,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:24,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-17 15:08:24,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:24,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-17 15:08:24,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-17 15:08:24,224 INFO L87 Difference]: Start difference. First operand 700 states and 890 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 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 15:08:24,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:24,395 INFO L93 Difference]: Finished difference Result 1298 states and 1659 transitions. [2021-12-17 15:08:24,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-17 15:08:24,396 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 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 52 [2021-12-17 15:08:24,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:24,397 INFO L225 Difference]: With dead ends: 1298 [2021-12-17 15:08:24,397 INFO L226 Difference]: Without dead ends: 259 [2021-12-17 15:08:24,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2021-12-17 15:08:24,400 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 152 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:24,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 497 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:08:24,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2021-12-17 15:08:24,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 247. [2021-12-17 15:08:24,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 197 states have (on average 1.1878172588832487) internal successors, (234), 208 states have internal predecessors, (234), 26 states have call successors, (26), 23 states have call predecessors, (26), 23 states have return successors, (31), 24 states have call predecessors, (31), 26 states have call successors, (31) [2021-12-17 15:08:24,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 291 transitions. [2021-12-17 15:08:24,414 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 291 transitions. Word has length 52 [2021-12-17 15:08:24,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:24,414 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 291 transitions. [2021-12-17 15:08:24,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 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 15:08:24,415 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 291 transitions. [2021-12-17 15:08:24,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-17 15:08:24,415 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:24,416 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, 1] [2021-12-17 15:08:24,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-17 15:08:24,416 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:24,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:24,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1675825877, now seen corresponding path program 1 times [2021-12-17 15:08:24,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:24,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794902083] [2021-12-17 15:08:24,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:24,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:24,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:24,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:08:24,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:24,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-17 15:08:24,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:24,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-17 15:08:24,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:24,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-17 15:08:24,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:24,517 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 15:08:24,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:24,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794902083] [2021-12-17 15:08:24,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794902083] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:24,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:24,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 15:08:24,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119253947] [2021-12-17 15:08:24,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:24,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-17 15:08:24,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:24,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-17 15:08:24,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-12-17 15:08:24,520 INFO L87 Difference]: Start difference. First operand 247 states and 291 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-17 15:08:24,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:24,813 INFO L93 Difference]: Finished difference Result 483 states and 574 transitions. [2021-12-17 15:08:24,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-17 15:08:24,813 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 55 [2021-12-17 15:08:24,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:24,814 INFO L225 Difference]: With dead ends: 483 [2021-12-17 15:08:24,814 INFO L226 Difference]: Without dead ends: 0 [2021-12-17 15:08:24,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2021-12-17 15:08:24,816 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 146 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:24,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 359 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 15:08:24,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-17 15:08:24,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-17 15:08:24,817 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 15:08:24,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-17 15:08:24,817 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 55 [2021-12-17 15:08:24,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:24,817 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-17 15:08:24,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-17 15:08:24,818 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-17 15:08:24,818 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-17 15:08:24,820 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 15:08:24,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-17 15:08:24,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-17 15:08:27,651 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 257 263) no Hoare annotation was computed. [2021-12-17 15:08:27,651 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 257 263) the Hoare annotation is: true [2021-12-17 15:08:27,651 INFO L854 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 435 446) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or .cse0 (not (= |old(~methaneLevelCritical~0)| 0)) (= ~methaneLevelCritical~0 0)) (or .cse0 (not (= ~pumpRunning~0 0)) (= ~methaneLevelCritical~0 |old(~methaneLevelCritical~0)|) (not (<= 1 |old(~methaneLevelCritical~0)|))))) [2021-12-17 15:08:27,652 INFO L858 garLoopResultBuilder]: For program point L439-1(lines 435 446) no Hoare annotation was computed. [2021-12-17 15:08:27,652 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 435 446) no Hoare annotation was computed. [2021-12-17 15:08:27,652 INFO L861 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 447 455) the Hoare annotation is: true [2021-12-17 15:08:27,652 INFO L858 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 447 455) no Hoare annotation was computed. [2021-12-17 15:08:27,652 INFO L858 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 447 455) no Hoare annotation was computed. [2021-12-17 15:08:27,652 INFO L858 garLoopResultBuilder]: For program point L415(lines 415 419) no Hoare annotation was computed. [2021-12-17 15:08:27,652 INFO L854 garLoopResultBuilder]: At program point L415-2(lines 411 422) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (= 0 ~systemActive~0)) (.cse2 (= 0 |old(~pumpRunning~0)|))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1) (or .cse0 .cse2 (not (= 0 ~pumpRunning~0))) (or .cse0 (<= ~waterLevel~0 1) .cse2 (not (<= |old(~waterLevel~0)| 1))))) [2021-12-17 15:08:27,652 INFO L854 garLoopResultBuilder]: At program point L279(line 279) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (let ((.cse1 (and (<= ~waterLevel~0 1) (= ~waterLevel~0 |old(~waterLevel~0)|) (not .cse0) (= ~pumpRunning~0 0)))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or .cse0 (= 0 |old(~pumpRunning~0)|))))) [2021-12-17 15:08:27,652 INFO L854 garLoopResultBuilder]: At program point L395(lines 380 398) the Hoare annotation is: (let ((.cse1 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse0 (= 0 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 0))) (let ((.cse3 (and (<= ~waterLevel~0 1) .cse1 (not .cse0) .cse2))) (and (or .cse0 (and (= |timeShift_isHighWaterLevel_~tmp___0~1#1| 1) (= |timeShift_isHighWaterLevel_~tmp~4#1| 0) (= |timeShift_isHighWaterLevel_#res#1| 1) .cse1 (= |timeShift_isHighWaterSensorDry_#res#1| 0) .cse2) (not (<= 1 ~methaneLevelCritical~0)) .cse3) (or .cse0 .cse3 (not (= ~methaneLevelCritical~0 0))) (or .cse0 (= 0 |old(~pumpRunning~0)|))))) [2021-12-17 15:08:27,652 INFO L854 garLoopResultBuilder]: At program point L329(line 329) the Hoare annotation is: (let ((.cse2 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse0 (= 0 ~systemActive~0)) (.cse3 (= ~pumpRunning~0 0))) (let ((.cse1 (and (<= ~waterLevel~0 1) .cse2 (not .cse0) .cse3))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 (and (= |timeShift_isHighWaterLevel_~tmp___0~1#1| 1) (= |timeShift_isHighWaterLevel_~tmp~4#1| 0) (= |timeShift_isHighWaterLevel_#res#1| 1) .cse2 (= |timeShift_processEnvironment_~tmp~2#1| 1) (= |timeShift_isHighWaterSensorDry_#res#1| 0) .cse3)) (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or .cse0 (= 0 |old(~pumpRunning~0)|))))) [2021-12-17 15:08:27,652 INFO L858 garLoopResultBuilder]: For program point L329-1(line 329) no Hoare annotation was computed. [2021-12-17 15:08:27,652 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 233 256) no Hoare annotation was computed. [2021-12-17 15:08:27,652 INFO L858 garLoopResultBuilder]: For program point L932(lines 932 938) no Hoare annotation was computed. [2021-12-17 15:08:27,652 INFO L858 garLoopResultBuilder]: For program point L928(lines 928 941) no Hoare annotation was computed. [2021-12-17 15:08:27,652 INFO L854 garLoopResultBuilder]: At program point L928-1(lines 913 945) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (let ((.cse10 (= |timeShift_activatePump_~tmp~3#1| 0)) (.cse13 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse4 (not .cse0)) (.cse5 (= ~pumpRunning~0 0)) (.cse12 (not (= 0 ~pumpRunning~0))) (.cse1 (<= ~waterLevel~0 1)) (.cse14 (= 0 |old(~pumpRunning~0)|))) (and (let ((.cse6 (= |timeShift_isHighWaterLevel_~tmp___0~1#1| 1)) (.cse7 (= |timeShift_isHighWaterLevel_~tmp~4#1| 0)) (.cse8 (= |timeShift_isHighWaterLevel_#res#1| 1)) (.cse9 (= |timeShift_processEnvironment_~tmp~2#1| 1)) (.cse3 (not (= 0 |timeShift___utac_acc__Specification3_spec__1_~tmp~8#1|))) (.cse11 (= |timeShift_isHighWaterSensorDry_#res#1| 0))) (or .cse0 (and .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse8 .cse2 .cse9 .cse10 .cse11 .cse12) (not (<= 1 ~methaneLevelCritical~0)) .cse13 (and .cse6 .cse7 .cse8 .cse2 .cse9 .cse3 .cse11 .cse5) (and .cse1 .cse2 .cse10 .cse4 .cse12))) (or .cse0 (and .cse1 .cse2 .cse10 (= |timeShift_isMethaneAlarm_#res#1| 0) .cse4) .cse13 (not (= ~methaneLevelCritical~0 0)) (and .cse1 .cse2 .cse4 .cse5)) (or .cse0 .cse14 .cse12) (or .cse0 .cse1 .cse14 (not (<= |old(~waterLevel~0)| 1)))))) [2021-12-17 15:08:27,653 INFO L854 garLoopResultBuilder]: At program point L284(line 284) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (= 0 ~systemActive~0)) (.cse2 (= 0 |old(~pumpRunning~0)|))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1) (or .cse0 .cse2 (not (= 0 ~pumpRunning~0))) (or .cse0 (<= ~waterLevel~0 1) .cse2 (not (<= |old(~waterLevel~0)| 1))))) [2021-12-17 15:08:27,653 INFO L854 garLoopResultBuilder]: At program point L284-1(lines 265 289) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (let ((.cse1 (<= ~waterLevel~0 1)) (.cse4 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse2 (not .cse0)) (.cse13 (= ~pumpRunning~0 0))) (let ((.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (= |timeShift_activatePump_~tmp~3#1| 0)) (.cse7 (and .cse1 .cse4 .cse2 .cse13)) (.cse3 (= 0 |old(~pumpRunning~0)|))) (and (or .cse0 (and .cse1 .cse2) .cse3 (not (<= |old(~waterLevel~0)| 1))) (or .cse0 (and .cse1 .cse4 .cse5 (= |timeShift_isMethaneAlarm_#res#1| 0) .cse2) .cse6 .cse7 (not (= ~methaneLevelCritical~0 0))) (let ((.cse8 (= |timeShift_isHighWaterLevel_~tmp___0~1#1| 1)) (.cse9 (= |timeShift_isHighWaterLevel_~tmp~4#1| 0)) (.cse10 (= |timeShift_isHighWaterLevel_#res#1| 1)) (.cse11 (= |timeShift_processEnvironment_~tmp~2#1| 1)) (.cse12 (= |timeShift_isHighWaterSensorDry_#res#1| 0))) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) (and .cse8 .cse9 .cse10 .cse4 .cse11 .cse5 .cse12) .cse6 (and .cse1 .cse4 .cse5 .cse2) .cse7 (and .cse8 .cse9 .cse10 .cse4 .cse11 .cse12 .cse13))) (or .cse0 .cse3 (not (= 0 ~pumpRunning~0))))))) [2021-12-17 15:08:27,653 INFO L858 garLoopResultBuilder]: For program point L507(line 507) no Hoare annotation was computed. [2021-12-17 15:08:27,653 INFO L854 garLoopResultBuilder]: At program point L920(line 920) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (let ((.cse1 (<= ~waterLevel~0 1)) (.cse4 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse2 (not .cse0)) (.cse13 (= ~pumpRunning~0 0))) (let ((.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (= |timeShift_activatePump_~tmp~3#1| 0)) (.cse7 (and .cse1 .cse4 .cse2 .cse13)) (.cse3 (= 0 |old(~pumpRunning~0)|))) (and (or .cse0 (and .cse1 .cse2) .cse3 (not (<= |old(~waterLevel~0)| 1))) (or .cse0 (and .cse1 .cse4 .cse5 (= |timeShift_isMethaneAlarm_#res#1| 0) .cse2) .cse6 .cse7 (not (= ~methaneLevelCritical~0 0))) (let ((.cse8 (= |timeShift_isHighWaterLevel_~tmp___0~1#1| 1)) (.cse9 (= |timeShift_isHighWaterLevel_~tmp~4#1| 0)) (.cse10 (= |timeShift_isHighWaterLevel_#res#1| 1)) (.cse11 (= |timeShift_processEnvironment_~tmp~2#1| 1)) (.cse12 (= |timeShift_isHighWaterSensorDry_#res#1| 0))) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) (and .cse8 .cse9 .cse10 .cse4 .cse11 .cse5 .cse12) .cse6 (and .cse1 .cse4 .cse5 .cse2) .cse7 (and .cse8 .cse9 .cse10 .cse4 .cse11 .cse12 .cse13))) (or .cse0 .cse3 (not (= 0 ~pumpRunning~0))))))) [2021-12-17 15:08:27,653 INFO L858 garLoopResultBuilder]: For program point L920-1(line 920) no Hoare annotation was computed. [2021-12-17 15:08:27,653 INFO L854 garLoopResultBuilder]: At program point L508(lines 503 510) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or .cse0 (not (= ~methaneLevelCritical~0 0))) (or .cse0 (= 0 |old(~pumpRunning~0)|)))) [2021-12-17 15:08:27,653 INFO L858 garLoopResultBuilder]: For program point L244-1(lines 244 250) no Hoare annotation was computed. [2021-12-17 15:08:27,653 INFO L858 garLoopResultBuilder]: For program point L306(lines 306 312) no Hoare annotation was computed. [2021-12-17 15:08:27,653 INFO L858 garLoopResultBuilder]: For program point L273(lines 273 281) no Hoare annotation was computed. [2021-12-17 15:08:27,653 INFO L854 garLoopResultBuilder]: At program point L306-2(lines 299 315) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (let ((.cse1 (<= ~waterLevel~0 1)) (.cse2 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse8 (= |timeShift_activatePump_~tmp~3#1| 0)) (.cse10 (not .cse0))) (and (let ((.cse4 (= |timeShift_isHighWaterLevel_~tmp___0~1#1| 1)) (.cse5 (= |timeShift_isHighWaterLevel_~tmp~4#1| 0)) (.cse6 (= |timeShift_isHighWaterLevel_#res#1| 1)) (.cse7 (= |timeShift_processEnvironment_~tmp~2#1| 1)) (.cse9 (= |timeShift_isHighWaterSensorDry_#res#1| 0)) (.cse3 (= ~pumpRunning~0 0))) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) (and .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse2 .cse7 .cse8 .cse9) (and .cse1 .cse2 .cse8 .cse10) (and .cse4 .cse5 .cse6 .cse2 .cse7 .cse9 .cse3))) (or .cse0 (= 0 |old(~pumpRunning~0)|)) (or .cse0 (and .cse1 .cse2 .cse8 (= |timeShift_isMethaneAlarm_#res#1| 0) .cse10 (not (= 0 ~pumpRunning~0))) (not (= ~methaneLevelCritical~0 0)))))) [2021-12-17 15:08:27,653 INFO L858 garLoopResultBuilder]: For program point L269(lines 269 286) no Hoare annotation was computed. [2021-12-17 15:08:27,653 INFO L858 garLoopResultBuilder]: For program point L492(lines 492 498) no Hoare annotation was computed. [2021-12-17 15:08:27,653 INFO L854 garLoopResultBuilder]: At program point L331(lines 324 334) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (let ((.cse1 (<= ~waterLevel~0 1)) (.cse2 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse3 (not .cse0)) (.cse4 (= ~pumpRunning~0 0))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) (and .cse1 .cse2 .cse3 .cse4) (and (= |timeShift_isHighWaterLevel_~tmp___0~1#1| 1) (= |timeShift_isHighWaterLevel_~tmp~4#1| 0) (= |timeShift_isHighWaterLevel_#res#1| 1) .cse2 (= |timeShift_processEnvironment_~tmp~2#1| 1) (= |timeShift_isHighWaterSensorDry_#res#1| 0) .cse4)) (or .cse0 (and .cse1 .cse2 (= |timeShift_isMethaneAlarm_#res#1| 0) .cse3 .cse4) (not (= ~methaneLevelCritical~0 0))) (or .cse0 (= 0 |old(~pumpRunning~0)|))))) [2021-12-17 15:08:27,653 INFO L858 garLoopResultBuilder]: For program point L389(lines 389 393) no Hoare annotation was computed. [2021-12-17 15:08:27,654 INFO L854 garLoopResultBuilder]: At program point L484(lines 479 487) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (let ((.cse12 (<= ~waterLevel~0 1)) (.cse13 (<= |timeShift_getWaterLevel_#res#1| 1)) (.cse1 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse2 (= |timeShift_activatePump_~tmp~3#1| 0)) (.cse14 (not .cse0)) (.cse3 (not (= 0 ~pumpRunning~0)))) (let ((.cse6 (and .cse12 .cse13 .cse1 .cse2 .cse14 .cse3)) (.cse7 (not (<= |old(~waterLevel~0)| 1))) (.cse11 (= 0 |old(~pumpRunning~0)|)) (.cse10 (not (= ~methaneLevelCritical~0 0))) (.cse8 (not (= |old(~waterLevel~0)| 1))) (.cse4 (not (<= 1 ~methaneLevelCritical~0))) (.cse9 (and (= ~waterLevel~0 1) (= |timeShift_getWaterLevel_#res#1| 1) .cse14)) (.cse5 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= |timeShift_isHighWaterLevel_~tmp___0~1#1| 1) (= |timeShift_isHighWaterLevel_~tmp~4#1| 0) (= |timeShift_isHighWaterLevel_#res#1| 1) .cse1 (= |timeShift_processEnvironment_~tmp~2#1| 1) .cse2 (= |timeShift_isHighWaterSensorDry_#res#1| 0) .cse3) .cse4 .cse5 .cse6) (or .cse0 .cse4 .cse5 .cse6 .cse7) (or .cse0 .cse8 .cse9 .cse5 .cse10) (or .cse0 .cse11 (and .cse12 .cse13) .cse7) (or .cse0 .cse11 .cse3) (or .cse0 .cse5 (and .cse12 .cse13 .cse1 .cse2 (= |timeShift_isMethaneAlarm_#res#1| 0) .cse14) (and .cse12 .cse13 .cse1 (= ~pumpRunning~0 0)) .cse10) (or .cse0 .cse8 .cse4 .cse9 .cse5))))) [2021-12-17 15:08:27,654 INFO L858 garLoopResultBuilder]: For program point L389-2(lines 389 393) no Hoare annotation was computed. [2021-12-17 15:08:27,654 INFO L858 garLoopResultBuilder]: For program point L922(lines 922 942) no Hoare annotation was computed. [2021-12-17 15:08:27,654 INFO L854 garLoopResultBuilder]: At program point L340(lines 335 343) the Hoare annotation is: (let ((.cse3 (not (<= |old(~waterLevel~0)| 1))) (.cse2 (= 0 |old(~pumpRunning~0)|)) (.cse0 (= 0 ~systemActive~0)) (.cse4 (not (<= 1 ~methaneLevelCritical~0))) (.cse5 (not (= 0 |timeShift_isPumpRunning_#res#1|))) (.cse6 (not (= 0 ~pumpRunning~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse2 .cse3) (or .cse0 .cse4 .cse3) (or .cse0 .cse2 (and .cse5 .cse6)) (or .cse0 .cse4 (and (= |timeShift_isHighWaterLevel_~tmp___0~1#1| 1) (= |timeShift_isHighWaterLevel_~tmp~4#1| 0) (= |timeShift_isHighWaterLevel_#res#1| 1) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |timeShift_processEnvironment_~tmp~2#1| 1) (= |timeShift_activatePump_~tmp~3#1| 0) .cse5 (= |timeShift_isHighWaterSensorDry_#res#1| 0) .cse6) .cse1))) [2021-12-17 15:08:27,654 INFO L854 garLoopResultBuilder]: At program point L497(lines 488 501) the Hoare annotation is: (let ((.cse2 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse3 (= ~pumpRunning~0 0))) (let ((.cse1 (and (<= ~waterLevel~0 1) .cse2 .cse3)) (.cse0 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or .cse0 (and .cse2 (= |timeShift_isHighWaterSensorDry_#res#1| 0) .cse3) .cse1 (not (<= 1 ~methaneLevelCritical~0))) (or .cse0 (= 0 |old(~pumpRunning~0)|))))) [2021-12-17 15:08:27,654 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 233 256) the Hoare annotation is: (let ((.cse3 (= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (and .cse3 (= ~pumpRunning~0 0))) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or .cse0 (and .cse3 (not (= 0 ~pumpRunning~0))) (= 0 |old(~pumpRunning~0)|)) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0)))))) [2021-12-17 15:08:27,654 INFO L858 garLoopResultBuilder]: For program point L237-1(lines 236 255) no Hoare annotation was computed. [2021-12-17 15:08:27,654 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 233 256) no Hoare annotation was computed. [2021-12-17 15:08:27,654 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 507) no Hoare annotation was computed. [2021-12-17 15:08:27,654 INFO L854 garLoopResultBuilder]: At program point L295(lines 290 297) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (let ((.cse4 (<= ~waterLevel~0 1)) (.cse1 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse2 (= |timeShift_activatePump_~tmp~3#1| 0)) (.cse5 (not .cse0)) (.cse3 (not (= 0 ~pumpRunning~0)))) (and (or .cse0 (and (= |timeShift_isHighWaterLevel_~tmp___0~1#1| 1) (= |timeShift_isHighWaterLevel_~tmp~4#1| 0) (= |timeShift_isHighWaterLevel_#res#1| 1) .cse1 (= |timeShift_processEnvironment_~tmp~2#1| 1) .cse2 (= |timeShift_isHighWaterSensorDry_#res#1| 0) .cse3) (not (<= 1 ~methaneLevelCritical~0)) (and .cse4 .cse1 .cse2 .cse5 .cse3)) (or .cse0 (= 0 |old(~pumpRunning~0)|)) (or .cse0 (and .cse4 .cse1 .cse2 (= |timeShift_isMethaneAlarm_#res#1| 0) .cse5 .cse3) (not (= ~methaneLevelCritical~0 0)))))) [2021-12-17 15:08:27,654 INFO L861 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: true [2021-12-17 15:08:27,654 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 52 81) no Hoare annotation was computed. [2021-12-17 15:08:27,654 INFO L858 garLoopResultBuilder]: For program point L63(line 63) no Hoare annotation was computed. [2021-12-17 15:08:27,654 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 52 81) the Hoare annotation is: true [2021-12-17 15:08:27,654 INFO L861 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: true [2021-12-17 15:08:27,654 INFO L861 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2021-12-17 15:08:27,654 INFO L858 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2021-12-17 15:08:27,654 INFO L861 garLoopResultBuilder]: At program point L77(lines 52 81) the Hoare annotation is: true [2021-12-17 15:08:27,654 INFO L858 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-12-17 15:08:27,655 INFO L858 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2021-12-17 15:08:27,655 INFO L854 garLoopResultBuilder]: At program point L213(lines 164 214) the Hoare annotation is: false [2021-12-17 15:08:27,655 INFO L854 garLoopResultBuilder]: At program point L527(lines 523 529) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 0)) [2021-12-17 15:08:27,655 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-17 15:08:27,655 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-17 15:08:27,655 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-17 15:08:27,655 INFO L858 garLoopResultBuilder]: For program point L185(lines 185 191) no Hoare annotation was computed. [2021-12-17 15:08:27,655 INFO L858 garLoopResultBuilder]: For program point L185-1(lines 185 191) no Hoare annotation was computed. [2021-12-17 15:08:27,655 INFO L854 garLoopResultBuilder]: At program point L404(lines 399 406) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (= 1 |ULTIMATE.start_valid_product_#res#1|)) (.cse2 (= 1 |ULTIMATE.start_main_~tmp~0#1|)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 (not (= 0 ~pumpRunning~0))) (and .cse0 .cse1 .cse2 (<= 1 ~methaneLevelCritical~0) .cse3) (and .cse0 (= ~methaneLevelCritical~0 0) .cse1 .cse2 .cse3))) [2021-12-17 15:08:27,655 INFO L854 garLoopResultBuilder]: At program point L210(lines 165 212) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (= 1 |ULTIMATE.start_valid_product_#res#1|)) (.cse2 (= 1 |ULTIMATE.start_main_~tmp~0#1|)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 (not (= 0 ~pumpRunning~0))) (and .cse0 .cse1 .cse2 (<= 1 ~methaneLevelCritical~0) .cse3) (and .cse0 (<= ~waterLevel~0 1) .cse1 (= ~methaneLevelCritical~0 0) .cse2 .cse3))) [2021-12-17 15:08:27,655 INFO L854 garLoopResultBuilder]: At program point L177(line 177) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (= 1 |ULTIMATE.start_valid_product_#res#1|)) (.cse2 (= 1 |ULTIMATE.start_main_~tmp~0#1|)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 (not (= 0 ~pumpRunning~0))) (and .cse0 .cse1 .cse2 (<= 1 ~methaneLevelCritical~0) .cse3) (and .cse0 (<= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) .cse1 .cse2 .cse3))) [2021-12-17 15:08:27,655 INFO L858 garLoopResultBuilder]: For program point L140(lines 140 147) no Hoare annotation was computed. [2021-12-17 15:08:27,655 INFO L858 garLoopResultBuilder]: For program point L140-2(lines 140 147) no Hoare annotation was computed. [2021-12-17 15:08:27,656 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-17 15:08:27,656 INFO L861 garLoopResultBuilder]: At program point L124(lines 117 126) the Hoare annotation is: true [2021-12-17 15:08:27,656 INFO L861 garLoopResultBuilder]: At program point L149(lines 130 152) the Hoare annotation is: true [2021-12-17 15:08:27,656 INFO L858 garLoopResultBuilder]: For program point L203(lines 203 207) no Hoare annotation was computed. [2021-12-17 15:08:27,656 INFO L854 garLoopResultBuilder]: At program point L203-2(lines 195 208) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (= 1 |ULTIMATE.start_valid_product_#res#1|)) (.cse2 (= 1 |ULTIMATE.start_main_~tmp~0#1|)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 (not (= 0 ~pumpRunning~0))) (and .cse0 .cse1 .cse2 (<= 1 ~methaneLevelCritical~0) .cse3) (and .cse0 (= ~methaneLevelCritical~0 0) .cse1 .cse2 .cse3))) [2021-12-17 15:08:27,656 INFO L858 garLoopResultBuilder]: For program point L166(lines 165 212) no Hoare annotation was computed. [2021-12-17 15:08:27,656 INFO L858 garLoopResultBuilder]: For program point L195(lines 195 208) no Hoare annotation was computed. [2021-12-17 15:08:27,656 INFO L854 garLoopResultBuilder]: At program point L542(lines 537 545) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (= 1 |ULTIMATE.start_valid_product_#res#1|) (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 0)) [2021-12-17 15:08:27,656 INFO L854 garLoopResultBuilder]: At program point L187(line 187) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (= 1 |ULTIMATE.start_valid_product_#res#1|)) (.cse2 (= 1 |ULTIMATE.start_main_~tmp~0#1|)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 (not (= 0 ~pumpRunning~0))) (and .cse0 .cse1 (= ~methaneLevelCritical~0 0) .cse2 .cse3) (and .cse0 .cse1 .cse2 (<= 1 ~methaneLevelCritical~0) .cse3))) [2021-12-17 15:08:27,657 INFO L861 garLoopResultBuilder]: At program point L216(lines 155 220) the Hoare annotation is: true [2021-12-17 15:08:27,657 INFO L854 garLoopResultBuilder]: At program point L534(lines 530 536) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 0)) [2021-12-17 15:08:27,657 INFO L854 garLoopResultBuilder]: At program point L113(lines 109 115) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (= 1 |ULTIMATE.start_valid_product_#res#1|) (= 1 |ULTIMATE.start_main_~tmp~0#1|) (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 0)) [2021-12-17 15:08:27,657 INFO L858 garLoopResultBuilder]: For program point L175(lines 175 181) no Hoare annotation was computed. [2021-12-17 15:08:27,657 INFO L858 garLoopResultBuilder]: For program point L175-1(lines 175 181) no Hoare annotation was computed. [2021-12-17 15:08:27,657 INFO L858 garLoopResultBuilder]: For program point L167(lines 167 171) no Hoare annotation was computed. [2021-12-17 15:08:27,657 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 423 434) no Hoare annotation was computed. [2021-12-17 15:08:27,657 INFO L858 garLoopResultBuilder]: For program point L427-1(lines 423 434) no Hoare annotation was computed. [2021-12-17 15:08:27,657 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 423 434) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or .cse0 (= 0 ~pumpRunning~0) .cse1) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) (not (<= |old(~waterLevel~0)| 1))) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1))) [2021-12-17 15:08:27,660 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:08:27,660 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 15:08:27,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 03:08:27 BoogieIcfgContainer [2021-12-17 15:08:27,678 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 15:08:27,678 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 15:08:27,679 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 15:08:27,679 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 15:08:27,679 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 15:08:27,681 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-17 15:08:27,685 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-12-17 15:08:27,685 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-12-17 15:08:27,685 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2021-12-17 15:08:27,685 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-12-17 15:08:27,685 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-12-17 15:08:27,685 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-12-17 15:08:27,690 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 51 nodes and edges [2021-12-17 15:08:27,690 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-12-17 15:08:27,691 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-17 15:08:27,691 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-17 15:08:27,691 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-17 15:08:27,691 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 15:08:27,692 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 15:08:27,708 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((waterLevel == 1 && methaneLevelCritical == 0) && 1 == \result) && !(0 == systemActive)) && pumpRunning == 0 [2021-12-17 15:08:27,708 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((waterLevel == 1 && methaneLevelCritical == 0) && 1 == \result) && 1 == tmp) && !(0 == systemActive)) && pumpRunning == 0 [2021-12-17 15:08:27,708 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0 && 1 == \result) && 1 == tmp) && !(0 == systemActive)) && !(0 == pumpRunning)) || ((((splverifierCounter == 0 && 1 == \result) && 1 == tmp) && 1 <= methaneLevelCritical) && !(0 == systemActive))) || (((((splverifierCounter == 0 && waterLevel <= 1) && 1 == \result) && methaneLevelCritical == 0) && 1 == tmp) && !(0 == systemActive)) [2021-12-17 15:08:27,709 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((0 == systemActive || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) && ((0 == systemActive || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0))) && ((0 == systemActive || 0 == \old(pumpRunning)) || !(0 == pumpRunning))) && (((0 == systemActive || waterLevel <= 1) || 0 == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) [2021-12-17 15:08:27,709 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((0 == systemActive || (waterLevel <= 1 && !(0 == systemActive))) || 0 == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) && ((((0 == systemActive || ((((waterLevel <= 1 && waterLevel == \old(waterLevel)) && tmp == 0) && \result == 0) && !(0 == systemActive))) || !(\old(pumpRunning) == 0)) || (((waterLevel <= 1 && waterLevel == \old(waterLevel)) && !(0 == systemActive)) && pumpRunning == 0)) || !(methaneLevelCritical == 0))) && ((((((0 == systemActive || !(1 <= methaneLevelCritical)) || ((((((tmp___0 == 1 && tmp == 0) && \result == 1) && waterLevel == \old(waterLevel)) && tmp == 1) && tmp == 0) && \result == 0)) || !(\old(pumpRunning) == 0)) || (((waterLevel <= 1 && waterLevel == \old(waterLevel)) && tmp == 0) && !(0 == systemActive))) || (((waterLevel <= 1 && waterLevel == \old(waterLevel)) && !(0 == systemActive)) && pumpRunning == 0)) || ((((((tmp___0 == 1 && tmp == 0) && \result == 1) && waterLevel == \old(waterLevel)) && tmp == 1) && \result == 0) && pumpRunning == 0))) && ((0 == systemActive || 0 == \old(pumpRunning)) || !(0 == pumpRunning)) [2021-12-17 15:08:27,710 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0 && 1 == \result) && 1 == tmp) && !(0 == systemActive)) && !(0 == pumpRunning)) || ((((splverifierCounter == 0 && 1 == \result) && 1 == tmp) && 1 <= methaneLevelCritical) && !(0 == systemActive))) || ((((splverifierCounter == 0 && methaneLevelCritical == 0) && 1 == \result) && 1 == tmp) && !(0 == systemActive)) [2021-12-17 15:08:27,710 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((0 == systemActive || ((((waterLevel <= 1 && waterLevel == \old(waterLevel)) && !(0 == tmp)) && !(0 == systemActive)) && pumpRunning == 0)) || (((((((tmp___0 == 1 && tmp == 0) && \result == 1) && waterLevel == \old(waterLevel)) && tmp == 1) && tmp == 0) && \result == 0) && !(0 == pumpRunning))) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || (((((((tmp___0 == 1 && tmp == 0) && \result == 1) && waterLevel == \old(waterLevel)) && tmp == 1) && !(0 == tmp)) && \result == 0) && pumpRunning == 0)) || ((((waterLevel <= 1 && waterLevel == \old(waterLevel)) && tmp == 0) && !(0 == systemActive)) && !(0 == pumpRunning))) && ((((0 == systemActive || ((((waterLevel <= 1 && waterLevel == \old(waterLevel)) && tmp == 0) && \result == 0) && !(0 == systemActive))) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || (((waterLevel <= 1 && waterLevel == \old(waterLevel)) && !(0 == systemActive)) && pumpRunning == 0))) && ((0 == systemActive || 0 == \old(pumpRunning)) || !(0 == pumpRunning))) && (((0 == systemActive || waterLevel <= 1) || 0 == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) [2021-12-17 15:08:27,710 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((0 == systemActive || !(1 <= methaneLevelCritical)) || (((waterLevel <= 1 && waterLevel == \old(waterLevel)) && !(0 == systemActive)) && pumpRunning == 0)) || ((((((tmp___0 == 1 && tmp == 0) && \result == 1) && waterLevel == \old(waterLevel)) && tmp == 1) && \result == 0) && pumpRunning == 0)) && ((0 == systemActive || ((((waterLevel <= 1 && waterLevel == \old(waterLevel)) && \result == 0) && !(0 == systemActive)) && pumpRunning == 0)) || !(methaneLevelCritical == 0))) && (0 == systemActive || 0 == \old(pumpRunning)) [2021-12-17 15:08:27,710 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((0 == systemActive || (((((((tmp___0 == 1 && tmp == 0) && \result == 1) && waterLevel == \old(waterLevel)) && tmp == 1) && tmp == 0) && \result == 0) && !(0 == pumpRunning))) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || (((((waterLevel <= 1 && \result <= 1) && waterLevel == \old(waterLevel)) && tmp == 0) && !(0 == systemActive)) && !(0 == pumpRunning))) && ((((0 == systemActive || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || (((((waterLevel <= 1 && \result <= 1) && waterLevel == \old(waterLevel)) && tmp == 0) && !(0 == systemActive)) && !(0 == pumpRunning))) || !(\old(waterLevel) <= 1))) && ((((0 == systemActive || !(\old(waterLevel) == 1)) || ((waterLevel == 1 && \result == 1) && !(0 == systemActive))) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0))) && (((0 == systemActive || 0 == \old(pumpRunning)) || (waterLevel <= 1 && \result <= 1)) || !(\old(waterLevel) <= 1))) && ((0 == systemActive || 0 == \old(pumpRunning)) || !(0 == pumpRunning))) && ((((0 == systemActive || !(\old(pumpRunning) == 0)) || (((((waterLevel <= 1 && \result <= 1) && waterLevel == \old(waterLevel)) && tmp == 0) && \result == 0) && !(0 == systemActive))) || (((waterLevel <= 1 && \result <= 1) && waterLevel == \old(waterLevel)) && pumpRunning == 0)) || !(methaneLevelCritical == 0))) && ((((0 == systemActive || !(\old(waterLevel) == 1)) || !(1 <= methaneLevelCritical)) || ((waterLevel == 1 && \result == 1) && !(0 == systemActive))) || !(\old(pumpRunning) == 0)) [2021-12-17 15:08:27,710 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0 == systemActive || ((waterLevel <= 1 && waterLevel == \old(waterLevel)) && pumpRunning == 0)) || !(methaneLevelCritical == 0)) && (((0 == systemActive || ((waterLevel == \old(waterLevel) && \result == 0) && pumpRunning == 0)) || ((waterLevel <= 1 && waterLevel == \old(waterLevel)) && pumpRunning == 0)) || !(1 <= methaneLevelCritical))) && (0 == systemActive || 0 == \old(pumpRunning)) [2021-12-17 15:08:27,710 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((0 == systemActive || !(1 <= methaneLevelCritical)) || ((waterLevel <= 1 && waterLevel == \old(waterLevel)) && pumpRunning == 0)) || ((((((tmp___0 == 1 && tmp == 0) && \result == 1) && waterLevel == \old(waterLevel)) && tmp == 1) && tmp == 0) && \result == 0)) || (((waterLevel <= 1 && waterLevel == \old(waterLevel)) && tmp == 0) && !(0 == systemActive))) || ((((((tmp___0 == 1 && tmp == 0) && \result == 1) && waterLevel == \old(waterLevel)) && tmp == 1) && \result == 0) && pumpRunning == 0)) && (0 == systemActive || 0 == \old(pumpRunning))) && ((0 == systemActive || (((((waterLevel <= 1 && waterLevel == \old(waterLevel)) && tmp == 0) && \result == 0) && !(0 == systemActive)) && !(0 == pumpRunning))) || !(methaneLevelCritical == 0)) [2021-12-17 15:08:27,711 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((0 == systemActive || (((((((tmp___0 == 1 && tmp == 0) && \result == 1) && waterLevel == \old(waterLevel)) && tmp == 1) && tmp == 0) && \result == 0) && !(0 == pumpRunning))) || !(1 <= methaneLevelCritical)) || ((((waterLevel <= 1 && waterLevel == \old(waterLevel)) && tmp == 0) && !(0 == systemActive)) && !(0 == pumpRunning))) && (0 == systemActive || 0 == \old(pumpRunning))) && ((0 == systemActive || (((((waterLevel <= 1 && waterLevel == \old(waterLevel)) && tmp == 0) && \result == 0) && !(0 == systemActive)) && !(0 == pumpRunning))) || !(methaneLevelCritical == 0)) [2021-12-17 15:08:27,711 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((0 == systemActive || (((((tmp___0 == 1 && tmp == 0) && \result == 1) && waterLevel == \old(waterLevel)) && \result == 0) && pumpRunning == 0)) || !(1 <= methaneLevelCritical)) || (((waterLevel <= 1 && waterLevel == \old(waterLevel)) && !(0 == systemActive)) && pumpRunning == 0)) && ((0 == systemActive || (((waterLevel <= 1 && waterLevel == \old(waterLevel)) && !(0 == systemActive)) && pumpRunning == 0)) || !(methaneLevelCritical == 0))) && (0 == systemActive || 0 == \old(pumpRunning)) [2021-12-17 15:08:27,711 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((0 == systemActive || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) && ((0 == systemActive || 0 == \old(pumpRunning)) || !(\old(waterLevel) <= 1))) && ((0 == systemActive || !(1 <= methaneLevelCritical)) || !(\old(waterLevel) <= 1))) && ((0 == systemActive || 0 == \old(pumpRunning)) || (!(0 == \result) && !(0 == pumpRunning)))) && (((0 == systemActive || !(1 <= methaneLevelCritical)) || ((((((((tmp___0 == 1 && tmp == 0) && \result == 1) && waterLevel == \old(waterLevel)) && tmp == 1) && tmp == 0) && !(0 == \result)) && \result == 0) && !(0 == pumpRunning))) || !(\old(pumpRunning) == 0)) [2021-12-17 15:08:27,711 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((0 == systemActive || !(1 <= methaneLevelCritical)) && (0 == systemActive || !(methaneLevelCritical == 0))) && (0 == systemActive || 0 == \old(pumpRunning)) [2021-12-17 15:08:27,727 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 15:08:27,727 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 15:08:27,727 INFO L158 Benchmark]: Toolchain (without parser) took 6897.68ms. Allocated memory was 146.8MB in the beginning and 192.9MB in the end (delta: 46.1MB). Free memory was 121.4MB in the beginning and 66.6MB in the end (delta: 54.8MB). Peak memory consumption was 102.6MB. Max. memory is 16.1GB. [2021-12-17 15:08:27,727 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory is still 58.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 15:08:27,728 INFO L158 Benchmark]: CACSL2BoogieTranslator took 337.45ms. Allocated memory is still 146.8MB. Free memory was 121.4MB in the beginning and 103.1MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-17 15:08:27,728 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.49ms. Allocated memory is still 146.8MB. Free memory was 103.1MB in the beginning and 100.4MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-17 15:08:27,728 INFO L158 Benchmark]: Boogie Preprocessor took 29.09ms. Allocated memory is still 146.8MB. Free memory was 100.4MB in the beginning and 99.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 15:08:27,728 INFO L158 Benchmark]: RCFGBuilder took 319.07ms. Allocated memory is still 146.8MB. Free memory was 99.2MB in the beginning and 83.0MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-17 15:08:27,728 INFO L158 Benchmark]: TraceAbstraction took 6090.65ms. Allocated memory was 146.8MB in the beginning and 192.9MB in the end (delta: 46.1MB). Free memory was 82.4MB in the beginning and 72.9MB in the end (delta: 9.5MB). Peak memory consumption was 73.2MB. Max. memory is 16.1GB. [2021-12-17 15:08:27,729 INFO L158 Benchmark]: Witness Printer took 48.34ms. Allocated memory is still 192.9MB. Free memory was 72.9MB in the beginning and 66.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-17 15:08:27,730 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory is still 58.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 337.45ms. Allocated memory is still 146.8MB. Free memory was 121.4MB in the beginning and 103.1MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.49ms. Allocated memory is still 146.8MB. Free memory was 103.1MB in the beginning and 100.4MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.09ms. Allocated memory is still 146.8MB. Free memory was 100.4MB in the beginning and 99.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 319.07ms. Allocated memory is still 146.8MB. Free memory was 99.2MB in the beginning and 83.0MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6090.65ms. Allocated memory was 146.8MB in the beginning and 192.9MB in the end (delta: 46.1MB). Free memory was 82.4MB in the beginning and 72.9MB in the end (delta: 9.5MB). Peak memory consumption was 73.2MB. Max. memory is 16.1GB. * Witness Printer took 48.34ms. Allocated memory is still 192.9MB. Free memory was 72.9MB in the beginning and 66.6MB 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: 507]: 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, 82 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.0s, OverallIterations: 11, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.8s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1140 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1112 mSDsluCounter, 3343 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2326 mSDsCounter, 201 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1028 IncrementalHoareTripleChecker+Invalid, 1229 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 201 mSolverCounterUnsat, 1017 mSDtfsCounter, 1028 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 204 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=700occurred in iteration=9, InterpolantAutomatonStates: 82, 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, 280 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 38 LocationsWithAnnotation, 1170 PreInvPairs, 1428 NumberOfFragments, 1923 HoareAnnotationTreeSize, 1170 FomulaSimplifications, 1584 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 38 FomulaSimplificationsInter, 16107 FormulaSimplificationTreeSizeReductionInter, 2.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 507 NumberOfCodeBlocks, 507 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 495 ConstructedInterpolants, 0 QuantifiedInterpolants, 931 SizeOfPredicates, 4 NumberOfNonLiveVariables, 366 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: 503]: Loop Invariant Derived loop invariant: ((0 == systemActive || !(1 <= methaneLevelCritical)) && (0 == systemActive || !(methaneLevelCritical == 0))) && (0 == systemActive || 0 == \old(pumpRunning)) - InvariantResult [Line: 411]: Loop Invariant Derived loop invariant: ((((0 == systemActive || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) && ((0 == systemActive || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0))) && ((0 == systemActive || 0 == \old(pumpRunning)) || !(0 == pumpRunning))) && (((0 == systemActive || waterLevel <= 1) || 0 == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 530]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && methaneLevelCritical == 0) && !(0 == systemActive)) && pumpRunning == 0 - InvariantResult [Line: 155]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 380]: Loop Invariant Derived loop invariant: ((((0 == systemActive || (((((tmp___0 == 1 && tmp == 0) && \result == 1) && waterLevel == \old(waterLevel)) && \result == 0) && pumpRunning == 0)) || !(1 <= methaneLevelCritical)) || (((waterLevel <= 1 && waterLevel == \old(waterLevel)) && !(0 == systemActive)) && pumpRunning == 0)) && ((0 == systemActive || (((waterLevel <= 1 && waterLevel == \old(waterLevel)) && !(0 == systemActive)) && pumpRunning == 0)) || !(methaneLevelCritical == 0))) && (0 == systemActive || 0 == \old(pumpRunning)) - InvariantResult [Line: 913]: Loop Invariant Derived loop invariant: ((((((((0 == systemActive || ((((waterLevel <= 1 && waterLevel == \old(waterLevel)) && !(0 == tmp)) && !(0 == systemActive)) && pumpRunning == 0)) || (((((((tmp___0 == 1 && tmp == 0) && \result == 1) && waterLevel == \old(waterLevel)) && tmp == 1) && tmp == 0) && \result == 0) && !(0 == pumpRunning))) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || (((((((tmp___0 == 1 && tmp == 0) && \result == 1) && waterLevel == \old(waterLevel)) && tmp == 1) && !(0 == tmp)) && \result == 0) && pumpRunning == 0)) || ((((waterLevel <= 1 && waterLevel == \old(waterLevel)) && tmp == 0) && !(0 == systemActive)) && !(0 == pumpRunning))) && ((((0 == systemActive || ((((waterLevel <= 1 && waterLevel == \old(waterLevel)) && tmp == 0) && \result == 0) && !(0 == systemActive))) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || (((waterLevel <= 1 && waterLevel == \old(waterLevel)) && !(0 == systemActive)) && pumpRunning == 0))) && ((0 == systemActive || 0 == \old(pumpRunning)) || !(0 == pumpRunning))) && (((0 == systemActive || waterLevel <= 1) || 0 == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) - InvariantResult [Line: 265]: Loop Invariant Derived loop invariant: (((((0 == systemActive || (waterLevel <= 1 && !(0 == systemActive))) || 0 == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) && ((((0 == systemActive || ((((waterLevel <= 1 && waterLevel == \old(waterLevel)) && tmp == 0) && \result == 0) && !(0 == systemActive))) || !(\old(pumpRunning) == 0)) || (((waterLevel <= 1 && waterLevel == \old(waterLevel)) && !(0 == systemActive)) && pumpRunning == 0)) || !(methaneLevelCritical == 0))) && ((((((0 == systemActive || !(1 <= methaneLevelCritical)) || ((((((tmp___0 == 1 && tmp == 0) && \result == 1) && waterLevel == \old(waterLevel)) && tmp == 1) && tmp == 0) && \result == 0)) || !(\old(pumpRunning) == 0)) || (((waterLevel <= 1 && waterLevel == \old(waterLevel)) && tmp == 0) && !(0 == systemActive))) || (((waterLevel <= 1 && waterLevel == \old(waterLevel)) && !(0 == systemActive)) && pumpRunning == 0)) || ((((((tmp___0 == 1 && tmp == 0) && \result == 1) && waterLevel == \old(waterLevel)) && tmp == 1) && \result == 0) && pumpRunning == 0))) && ((0 == systemActive || 0 == \old(pumpRunning)) || !(0 == pumpRunning)) - InvariantResult [Line: 537]: Loop Invariant Derived loop invariant: (((waterLevel == 1 && methaneLevelCritical == 0) && 1 == \result) && !(0 == systemActive)) && pumpRunning == 0 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0 && 1 == \result) && 1 == tmp) && !(0 == systemActive)) && !(0 == pumpRunning)) || ((((splverifierCounter == 0 && 1 == \result) && 1 == tmp) && 1 <= methaneLevelCritical) && !(0 == systemActive))) || (((((splverifierCounter == 0 && waterLevel <= 1) && 1 == \result) && methaneLevelCritical == 0) && 1 == tmp) && !(0 == systemActive)) - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && methaneLevelCritical == 0) && !(0 == systemActive)) && pumpRunning == 0 - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: ((((waterLevel == 1 && methaneLevelCritical == 0) && 1 == \result) && 1 == tmp) && !(0 == systemActive)) && pumpRunning == 0 - InvariantResult [Line: 335]: Loop Invariant Derived loop invariant: (((((0 == systemActive || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) && ((0 == systemActive || 0 == \old(pumpRunning)) || !(\old(waterLevel) <= 1))) && ((0 == systemActive || !(1 <= methaneLevelCritical)) || !(\old(waterLevel) <= 1))) && ((0 == systemActive || 0 == \old(pumpRunning)) || (!(0 == \result) && !(0 == pumpRunning)))) && (((0 == systemActive || !(1 <= methaneLevelCritical)) || ((((((((tmp___0 == 1 && tmp == 0) && \result == 1) && waterLevel == \old(waterLevel)) && tmp == 1) && tmp == 0) && !(0 == \result)) && \result == 0) && !(0 == pumpRunning))) || !(\old(pumpRunning) == 0)) - InvariantResult [Line: 299]: Loop Invariant Derived loop invariant: ((((((0 == systemActive || !(1 <= methaneLevelCritical)) || ((waterLevel <= 1 && waterLevel == \old(waterLevel)) && pumpRunning == 0)) || ((((((tmp___0 == 1 && tmp == 0) && \result == 1) && waterLevel == \old(waterLevel)) && tmp == 1) && tmp == 0) && \result == 0)) || (((waterLevel <= 1 && waterLevel == \old(waterLevel)) && tmp == 0) && !(0 == systemActive))) || ((((((tmp___0 == 1 && tmp == 0) && \result == 1) && waterLevel == \old(waterLevel)) && tmp == 1) && \result == 0) && pumpRunning == 0)) && (0 == systemActive || 0 == \old(pumpRunning))) && ((0 == systemActive || (((((waterLevel <= 1 && waterLevel == \old(waterLevel)) && tmp == 0) && \result == 0) && !(0 == systemActive)) && !(0 == pumpRunning))) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 324]: Loop Invariant Derived loop invariant: ((((0 == systemActive || !(1 <= methaneLevelCritical)) || (((waterLevel <= 1 && waterLevel == \old(waterLevel)) && !(0 == systemActive)) && pumpRunning == 0)) || ((((((tmp___0 == 1 && tmp == 0) && \result == 1) && waterLevel == \old(waterLevel)) && tmp == 1) && \result == 0) && pumpRunning == 0)) && ((0 == systemActive || ((((waterLevel <= 1 && waterLevel == \old(waterLevel)) && \result == 0) && !(0 == systemActive)) && pumpRunning == 0)) || !(methaneLevelCritical == 0))) && (0 == systemActive || 0 == \old(pumpRunning)) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 117]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 290]: Loop Invariant Derived loop invariant: ((((0 == systemActive || (((((((tmp___0 == 1 && tmp == 0) && \result == 1) && waterLevel == \old(waterLevel)) && tmp == 1) && tmp == 0) && \result == 0) && !(0 == pumpRunning))) || !(1 <= methaneLevelCritical)) || ((((waterLevel <= 1 && waterLevel == \old(waterLevel)) && tmp == 0) && !(0 == systemActive)) && !(0 == pumpRunning))) && (0 == systemActive || 0 == \old(pumpRunning))) && ((0 == systemActive || (((((waterLevel <= 1 && waterLevel == \old(waterLevel)) && tmp == 0) && \result == 0) && !(0 == systemActive)) && !(0 == pumpRunning))) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 399]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0 && 1 == \result) && 1 == tmp) && !(0 == systemActive)) && !(0 == pumpRunning)) || ((((splverifierCounter == 0 && 1 == \result) && 1 == tmp) && 1 <= methaneLevelCritical) && !(0 == systemActive))) || ((((splverifierCounter == 0 && methaneLevelCritical == 0) && 1 == \result) && 1 == tmp) && !(0 == systemActive)) - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: (((((((((0 == systemActive || (((((((tmp___0 == 1 && tmp == 0) && \result == 1) && waterLevel == \old(waterLevel)) && tmp == 1) && tmp == 0) && \result == 0) && !(0 == pumpRunning))) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || (((((waterLevel <= 1 && \result <= 1) && waterLevel == \old(waterLevel)) && tmp == 0) && !(0 == systemActive)) && !(0 == pumpRunning))) && ((((0 == systemActive || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || (((((waterLevel <= 1 && \result <= 1) && waterLevel == \old(waterLevel)) && tmp == 0) && !(0 == systemActive)) && !(0 == pumpRunning))) || !(\old(waterLevel) <= 1))) && ((((0 == systemActive || !(\old(waterLevel) == 1)) || ((waterLevel == 1 && \result == 1) && !(0 == systemActive))) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0))) && (((0 == systemActive || 0 == \old(pumpRunning)) || (waterLevel <= 1 && \result <= 1)) || !(\old(waterLevel) <= 1))) && ((0 == systemActive || 0 == \old(pumpRunning)) || !(0 == pumpRunning))) && ((((0 == systemActive || !(\old(pumpRunning) == 0)) || (((((waterLevel <= 1 && \result <= 1) && waterLevel == \old(waterLevel)) && tmp == 0) && \result == 0) && !(0 == systemActive))) || (((waterLevel <= 1 && \result <= 1) && waterLevel == \old(waterLevel)) && pumpRunning == 0)) || !(methaneLevelCritical == 0))) && ((((0 == systemActive || !(\old(waterLevel) == 1)) || !(1 <= methaneLevelCritical)) || ((waterLevel == 1 && \result == 1) && !(0 == systemActive))) || !(\old(pumpRunning) == 0)) - InvariantResult [Line: 488]: Loop Invariant Derived loop invariant: (((0 == systemActive || ((waterLevel <= 1 && waterLevel == \old(waterLevel)) && pumpRunning == 0)) || !(methaneLevelCritical == 0)) && (((0 == systemActive || ((waterLevel == \old(waterLevel) && \result == 0) && pumpRunning == 0)) || ((waterLevel <= 1 && waterLevel == \old(waterLevel)) && pumpRunning == 0)) || !(1 <= methaneLevelCritical))) && (0 == systemActive || 0 == \old(pumpRunning)) RESULT: Ultimate proved your program to be correct! [2021-12-17 15:08:27,776 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE