./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product58.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 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_product58.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 ae631a30e0cfb00652c35b082fd4038988aa5f3b2e1b026ceeb94d0624c45642 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 13:15:39,478 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 13:15:39,480 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 13:15:39,515 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 13:15:39,515 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 13:15:39,518 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 13:15:39,519 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 13:15:39,523 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 13:15:39,524 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 13:15:39,527 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 13:15:39,528 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 13:15:39,529 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 13:15:39,529 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 13:15:39,530 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 13:15:39,531 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 13:15:39,533 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 13:15:39,533 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 13:15:39,535 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 13:15:39,536 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 13:15:39,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 13:15:39,539 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 13:15:39,540 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 13:15:39,541 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 13:15:39,542 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 13:15:39,545 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 13:15:39,547 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 13:15:39,548 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 13:15:39,548 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 13:15:39,549 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 13:15:39,550 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 13:15:39,550 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 13:15:39,550 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 13:15:39,552 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 13:15:39,553 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 13:15:39,554 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 13:15:39,554 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 13:15:39,555 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 13:15:39,555 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 13:15:39,555 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 13:15:39,555 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 13:15:39,556 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 13:15:39,557 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 13:15:39,577 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 13:15:39,579 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 13:15:39,580 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 13:15:39,580 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 13:15:39,580 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 13:15:39,581 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 13:15:39,581 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 13:15:39,581 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 13:15:39,581 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 13:15:39,582 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 13:15:39,582 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 13:15:39,582 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 13:15:39,583 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 13:15:39,583 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 13:15:39,583 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 13:15:39,583 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 13:15:39,583 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 13:15:39,583 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 13:15:39,583 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 13:15:39,584 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 13:15:39,584 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 13:15:39,584 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 13:15:39,584 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 13:15:39,584 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 13:15:39,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 13:15:39,585 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 13:15:39,585 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 13:15:39,585 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 13:15:39,585 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 13:15:39,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 13:15:39,585 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 13:15:39,585 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 13:15:39,586 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 13:15:39,586 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 13:15:39,586 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae631a30e0cfb00652c35b082fd4038988aa5f3b2e1b026ceeb94d0624c45642 [2021-12-21 13:15:39,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 13:15:39,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 13:15:39,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 13:15:39,803 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 13:15:39,804 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 13:15:39,805 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product58.cil.c [2021-12-21 13:15:39,857 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e0a29616/57f14f2d59b14d0cb68091b63e5b63b4/FLAGca39478a6 [2021-12-21 13:15:40,458 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 13:15:40,460 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product58.cil.c [2021-12-21 13:15:40,476 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e0a29616/57f14f2d59b14d0cb68091b63e5b63b4/FLAGca39478a6 [2021-12-21 13:15:40,748 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e0a29616/57f14f2d59b14d0cb68091b63e5b63b4 [2021-12-21 13:15:40,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 13:15:40,752 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 13:15:40,780 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 13:15:40,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 13:15:40,783 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 13:15:40,784 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:15:40" (1/1) ... [2021-12-21 13:15:40,785 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cf7627e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:40, skipping insertion in model container [2021-12-21 13:15:40,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:15:40" (1/1) ... [2021-12-21 13:15:40,791 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 13:15:40,878 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 13:15:41,303 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_product58.cil.c[13037,13050] [2021-12-21 13:15:41,369 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 13:15:41,376 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 13:15:41,438 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_product58.cil.c[13037,13050] [2021-12-21 13:15:41,459 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 13:15:41,489 INFO L208 MainTranslator]: Completed translation [2021-12-21 13:15:41,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:41 WrapperNode [2021-12-21 13:15:41,498 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 13:15:41,499 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 13:15:41,500 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 13:15:41,500 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 13:15:41,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:41" (1/1) ... [2021-12-21 13:15:41,542 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:41" (1/1) ... [2021-12-21 13:15:41,588 INFO L137 Inliner]: procedures = 57, calls = 158, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 283 [2021-12-21 13:15:41,589 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 13:15:41,590 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 13:15:41,590 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 13:15:41,590 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 13:15:41,609 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:41" (1/1) ... [2021-12-21 13:15:41,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:41" (1/1) ... [2021-12-21 13:15:41,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:41" (1/1) ... [2021-12-21 13:15:41,616 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:41" (1/1) ... [2021-12-21 13:15:41,625 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:41" (1/1) ... [2021-12-21 13:15:41,632 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:41" (1/1) ... [2021-12-21 13:15:41,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:41" (1/1) ... [2021-12-21 13:15:41,638 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 13:15:41,639 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 13:15:41,639 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 13:15:41,639 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 13:15:41,640 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:41" (1/1) ... [2021-12-21 13:15:41,646 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 13:15:41,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 13:15:41,719 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) [2021-12-21 13:15:41,721 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 [2021-12-21 13:15:41,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 13:15:41,760 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-21 13:15:41,761 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-21 13:15:41,761 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-12-21 13:15:41,761 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-12-21 13:15:41,762 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-21 13:15:41,762 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-21 13:15:41,765 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-21 13:15:41,765 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-21 13:15:41,765 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-12-21 13:15:41,766 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-12-21 13:15:41,766 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-21 13:15:41,766 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-21 13:15:41,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 13:15:41,766 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-21 13:15:41,766 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-21 13:15:41,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 13:15:41,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 13:15:41,837 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 13:15:41,838 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 13:15:42,081 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 13:15:42,087 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 13:15:42,087 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-21 13:15:42,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:15:42 BoogieIcfgContainer [2021-12-21 13:15:42,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 13:15:42,090 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 13:15:42,090 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 13:15:42,092 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 13:15:42,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 01:15:40" (1/3) ... [2021-12-21 13:15:42,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@288ab0a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:15:42, skipping insertion in model container [2021-12-21 13:15:42,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:41" (2/3) ... [2021-12-21 13:15:42,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@288ab0a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:15:42, skipping insertion in model container [2021-12-21 13:15:42,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:15:42" (3/3) ... [2021-12-21 13:15:42,094 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product58.cil.c [2021-12-21 13:15:42,098 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 13:15:42,098 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 13:15:42,139 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 13:15:42,144 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 [2021-12-21 13:15:42,144 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 13:15:42,161 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 73 states have (on average 1.3835616438356164) internal successors, (101), 81 states have internal predecessors, (101), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2021-12-21 13:15:42,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-21 13:15:42,165 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:15:42,166 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] [2021-12-21 13:15:42,166 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:15:42,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:15:42,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1031602919, now seen corresponding path program 1 times [2021-12-21 13:15:42,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:15:42,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654278950] [2021-12-21 13:15:42,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:15:42,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:15:42,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:42,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 13:15:42,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:42,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:15:42,318 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:15:42,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654278950] [2021-12-21 13:15:42,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654278950] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:15:42,319 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:15:42,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 13:15:42,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940872129] [2021-12-21 13:15:42,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:15:42,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-21 13:15:42,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:15:42,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-21 13:15:42,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 13:15:42,345 INFO L87 Difference]: Start difference. First operand has 94 states, 73 states have (on average 1.3835616438356164) internal successors, (101), 81 states have internal predecessors, (101), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) 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) [2021-12-21 13:15:42,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:15:42,367 INFO L93 Difference]: Finished difference Result 180 states and 245 transitions. [2021-12-21 13:15:42,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 13:15:42,369 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 [2021-12-21 13:15:42,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:15:42,376 INFO L225 Difference]: With dead ends: 180 [2021-12-21 13:15:42,377 INFO L226 Difference]: Without dead ends: 85 [2021-12-21 13:15:42,380 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 [2021-12-21 13:15:42,384 INFO L933 BasicCegarLoop]: 119 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, 119 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 [2021-12-21 13:15:42,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:15:42,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-12-21 13:15:42,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2021-12-21 13:15:42,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 66 states have (on average 1.3181818181818181) internal successors, (87), 73 states have internal predecessors, (87), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2021-12-21 13:15:42,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 110 transitions. [2021-12-21 13:15:42,420 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 110 transitions. Word has length 25 [2021-12-21 13:15:42,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:15:42,420 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 110 transitions. [2021-12-21 13:15:42,421 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) [2021-12-21 13:15:42,421 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 110 transitions. [2021-12-21 13:15:42,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-21 13:15:42,424 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:15:42,424 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] [2021-12-21 13:15:42,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 13:15:42,425 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:15:42,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:15:42,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1999893422, now seen corresponding path program 1 times [2021-12-21 13:15:42,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:15:42,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72913837] [2021-12-21 13:15:42,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:15:42,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:15:42,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:42,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-21 13:15:42,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:42,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:15:42,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:15:42,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72913837] [2021-12-21 13:15:42,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72913837] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:15:42,486 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:15:42,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 13:15:42,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428250359] [2021-12-21 13:15:42,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:15:42,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 13:15:42,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:15:42,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 13:15:42,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 13:15:42,488 INFO L87 Difference]: Start difference. First operand 85 states and 110 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) [2021-12-21 13:15:42,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:15:42,499 INFO L93 Difference]: Finished difference Result 135 states and 175 transitions. [2021-12-21 13:15:42,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 13:15:42,500 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 [2021-12-21 13:15:42,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:15:42,501 INFO L225 Difference]: With dead ends: 135 [2021-12-21 13:15:42,501 INFO L226 Difference]: Without dead ends: 76 [2021-12-21 13:15:42,502 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 [2021-12-21 13:15:42,503 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 13 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 177 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 [2021-12-21 13:15:42,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 177 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:15:42,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-12-21 13:15:42,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2021-12-21 13:15:42,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 60 states have (on average 1.3333333333333333) internal successors, (80), 67 states have internal predecessors, (80), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2021-12-21 13:15:42,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 98 transitions. [2021-12-21 13:15:42,515 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 98 transitions. Word has length 26 [2021-12-21 13:15:42,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:15:42,516 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 98 transitions. [2021-12-21 13:15:42,516 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) [2021-12-21 13:15:42,516 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 98 transitions. [2021-12-21 13:15:42,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-21 13:15:42,517 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:15:42,517 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] [2021-12-21 13:15:42,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 13:15:42,517 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:15:42,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:15:42,518 INFO L85 PathProgramCache]: Analyzing trace with hash -2069285612, now seen corresponding path program 1 times [2021-12-21 13:15:42,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:15:42,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576380336] [2021-12-21 13:15:42,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:15:42,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:15:42,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:42,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-21 13:15:42,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:42,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:15:42,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:15:42,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576380336] [2021-12-21 13:15:42,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576380336] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:15:42,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:15:42,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 13:15:42,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781784690] [2021-12-21 13:15:42,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:15:42,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 13:15:42,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:15:42,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 13:15:42,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 13:15:42,580 INFO L87 Difference]: Start difference. First operand 76 states and 98 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 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) [2021-12-21 13:15:42,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:15:42,596 INFO L93 Difference]: Finished difference Result 145 states and 190 transitions. [2021-12-21 13:15:42,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 13:15:42,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 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 [2021-12-21 13:15:42,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:15:42,597 INFO L225 Difference]: With dead ends: 145 [2021-12-21 13:15:42,598 INFO L226 Difference]: Without dead ends: 76 [2021-12-21 13:15:42,598 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 [2021-12-21 13:15:42,599 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 92 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:15:42,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 96 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:15:42,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-12-21 13:15:42,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2021-12-21 13:15:42,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 60 states have (on average 1.3166666666666667) internal successors, (79), 67 states have internal predecessors, (79), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2021-12-21 13:15:42,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 97 transitions. [2021-12-21 13:15:42,606 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 97 transitions. Word has length 31 [2021-12-21 13:15:42,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:15:42,606 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 97 transitions. [2021-12-21 13:15:42,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 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) [2021-12-21 13:15:42,606 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 97 transitions. [2021-12-21 13:15:42,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-12-21 13:15:42,607 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:15:42,607 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:15:42,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 13:15:42,608 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:15:42,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:15:42,608 INFO L85 PathProgramCache]: Analyzing trace with hash -513760969, now seen corresponding path program 1 times [2021-12-21 13:15:42,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:15:42,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557711893] [2021-12-21 13:15:42,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:15:42,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:15:42,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:42,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-21 13:15:42,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:42,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 13:15:42,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:42,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-21 13:15:42,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:42,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:15:42,737 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:15:42,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557711893] [2021-12-21 13:15:42,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557711893] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:15:42,737 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:15:42,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 13:15:42,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488374744] [2021-12-21 13:15:42,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:15:42,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 13:15:42,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:15:42,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 13:15:42,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 13:15:42,739 INFO L87 Difference]: Start difference. First operand 76 states and 97 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-21 13:15:42,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:15:42,891 INFO L93 Difference]: Finished difference Result 224 states and 286 transitions. [2021-12-21 13:15:42,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 13:15:42,891 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 41 [2021-12-21 13:15:42,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:15:42,893 INFO L225 Difference]: With dead ends: 224 [2021-12-21 13:15:42,893 INFO L226 Difference]: Without dead ends: 155 [2021-12-21 13:15:42,894 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-21 13:15:42,895 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 185 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 13:15:42,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 317 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 13:15:42,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-12-21 13:15:42,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 149. [2021-12-21 13:15:42,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 117 states have (on average 1.2735042735042734) internal successors, (149), 125 states have internal predecessors, (149), 15 states have call successors, (15), 13 states have call predecessors, (15), 16 states have return successors, (20), 16 states have call predecessors, (20), 15 states have call successors, (20) [2021-12-21 13:15:42,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 184 transitions. [2021-12-21 13:15:42,910 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 184 transitions. Word has length 41 [2021-12-21 13:15:42,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:15:42,910 INFO L470 AbstractCegarLoop]: Abstraction has 149 states and 184 transitions. [2021-12-21 13:15:42,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-21 13:15:42,911 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 184 transitions. [2021-12-21 13:15:42,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-21 13:15:42,912 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:15:42,912 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, 1] [2021-12-21 13:15:42,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 13:15:42,913 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:15:42,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:15:42,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1561264077, now seen corresponding path program 1 times [2021-12-21 13:15:42,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:15:42,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145448970] [2021-12-21 13:15:42,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:15:42,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:15:42,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:42,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-21 13:15:42,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:42,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:15:42,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:42,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 13:15:42,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:43,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:15:43,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:15:43,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145448970] [2021-12-21 13:15:43,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145448970] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:15:43,003 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:15:43,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 13:15:43,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311106462] [2021-12-21 13:15:43,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:15:43,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 13:15:43,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:15:43,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 13:15:43,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 13:15:43,005 INFO L87 Difference]: Start difference. First operand 149 states and 184 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-21 13:15:43,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:15:43,166 INFO L93 Difference]: Finished difference Result 309 states and 384 transitions. [2021-12-21 13:15:43,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-21 13:15:43,167 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 47 [2021-12-21 13:15:43,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:15:43,169 INFO L225 Difference]: With dead ends: 309 [2021-12-21 13:15:43,171 INFO L226 Difference]: Without dead ends: 167 [2021-12-21 13:15:43,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-12-21 13:15:43,174 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 103 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 13:15:43,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 387 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 13:15:43,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2021-12-21 13:15:43,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 152. [2021-12-21 13:15:43,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 120 states have (on average 1.2666666666666666) internal successors, (152), 128 states have internal predecessors, (152), 15 states have call successors, (15), 13 states have call predecessors, (15), 16 states have return successors, (20), 16 states have call predecessors, (20), 15 states have call successors, (20) [2021-12-21 13:15:43,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 187 transitions. [2021-12-21 13:15:43,202 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 187 transitions. Word has length 47 [2021-12-21 13:15:43,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:15:43,204 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 187 transitions. [2021-12-21 13:15:43,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-21 13:15:43,204 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 187 transitions. [2021-12-21 13:15:43,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-21 13:15:43,208 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:15:43,208 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, 1] [2021-12-21 13:15:43,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 13:15:43,208 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:15:43,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:15:43,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1342409359, now seen corresponding path program 1 times [2021-12-21 13:15:43,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:15:43,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501928423] [2021-12-21 13:15:43,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:15:43,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:15:43,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:43,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-21 13:15:43,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:43,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:15:43,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:43,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 13:15:43,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:43,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:15:43,330 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:15:43,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501928423] [2021-12-21 13:15:43,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501928423] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:15:43,330 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:15:43,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 13:15:43,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772942236] [2021-12-21 13:15:43,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:15:43,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 13:15:43,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:15:43,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 13:15:43,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 13:15:43,332 INFO L87 Difference]: Start difference. First operand 152 states and 187 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-21 13:15:43,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:15:43,530 INFO L93 Difference]: Finished difference Result 396 states and 506 transitions. [2021-12-21 13:15:43,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-21 13:15:43,531 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (4), 3 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 47 [2021-12-21 13:15:43,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:15:43,535 INFO L225 Difference]: With dead ends: 396 [2021-12-21 13:15:43,535 INFO L226 Difference]: Without dead ends: 251 [2021-12-21 13:15:43,536 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-12-21 13:15:43,551 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 129 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 13:15:43,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 412 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 13:15:43,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2021-12-21 13:15:43,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 243. [2021-12-21 13:15:43,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 191 states have (on average 1.2513089005235603) internal successors, (239), 202 states have internal predecessors, (239), 26 states have call successors, (26), 23 states have call predecessors, (26), 25 states have return successors, (36), 26 states have call predecessors, (36), 26 states have call successors, (36) [2021-12-21 13:15:43,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 301 transitions. [2021-12-21 13:15:43,568 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 301 transitions. Word has length 47 [2021-12-21 13:15:43,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:15:43,568 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 301 transitions. [2021-12-21 13:15:43,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-21 13:15:43,568 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 301 transitions. [2021-12-21 13:15:43,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-21 13:15:43,569 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:15:43,570 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, 1, 1, 1, 1, 1] [2021-12-21 13:15:43,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-21 13:15:43,570 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:15:43,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:15:43,570 INFO L85 PathProgramCache]: Analyzing trace with hash 2094412649, now seen corresponding path program 1 times [2021-12-21 13:15:43,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:15:43,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122929513] [2021-12-21 13:15:43,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:15:43,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:15:43,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:43,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 13:15:43,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:43,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-21 13:15:43,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:43,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:15:43,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:43,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-21 13:15:43,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:43,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:15:43,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:15:43,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122929513] [2021-12-21 13:15:43,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122929513] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:15:43,683 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:15:43,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 13:15:43,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039837655] [2021-12-21 13:15:43,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:15:43,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 13:15:43,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:15:43,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 13:15:43,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-21 13:15:43,685 INFO L87 Difference]: Start difference. First operand 243 states and 301 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-21 13:15:44,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:15:44,010 INFO L93 Difference]: Finished difference Result 583 states and 754 transitions. [2021-12-21 13:15:44,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-21 13:15:44,011 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 51 [2021-12-21 13:15:44,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:15:44,016 INFO L225 Difference]: With dead ends: 583 [2021-12-21 13:15:44,016 INFO L226 Difference]: Without dead ends: 438 [2021-12-21 13:15:44,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-12-21 13:15:44,018 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 302 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-21 13:15:44,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 439 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-21 13:15:44,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2021-12-21 13:15:44,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 404. [2021-12-21 13:15:44,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 318 states have (on average 1.229559748427673) internal successors, (391), 338 states have internal predecessors, (391), 42 states have call successors, (42), 34 states have call predecessors, (42), 43 states have return successors, (69), 43 states have call predecessors, (69), 42 states have call successors, (69) [2021-12-21 13:15:44,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 502 transitions. [2021-12-21 13:15:44,050 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 502 transitions. Word has length 51 [2021-12-21 13:15:44,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:15:44,051 INFO L470 AbstractCegarLoop]: Abstraction has 404 states and 502 transitions. [2021-12-21 13:15:44,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-21 13:15:44,051 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 502 transitions. [2021-12-21 13:15:44,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-21 13:15:44,052 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:15:44,052 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, 1, 1, 1, 1, 1] [2021-12-21 13:15:44,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-21 13:15:44,053 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:15:44,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:15:44,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1960399143, now seen corresponding path program 1 times [2021-12-21 13:15:44,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:15:44,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202809410] [2021-12-21 13:15:44,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:15:44,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:15:44,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:44,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 13:15:44,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:44,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-21 13:15:44,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:44,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:15:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:44,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-21 13:15:44,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:44,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:15:44,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:15:44,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202809410] [2021-12-21 13:15:44,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202809410] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:15:44,099 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:15:44,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 13:15:44,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499117421] [2021-12-21 13:15:44,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:15:44,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 13:15:44,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:15:44,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 13:15:44,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 13:15:44,107 INFO L87 Difference]: Start difference. First operand 404 states and 502 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-21 13:15:44,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:15:44,276 INFO L93 Difference]: Finished difference Result 736 states and 919 transitions. [2021-12-21 13:15:44,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-21 13:15:44,277 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 51 [2021-12-21 13:15:44,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:15:44,279 INFO L225 Difference]: With dead ends: 736 [2021-12-21 13:15:44,279 INFO L226 Difference]: Without dead ends: 426 [2021-12-21 13:15:44,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-12-21 13:15:44,281 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 147 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 13:15:44,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 397 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 13:15:44,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2021-12-21 13:15:44,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 398. [2021-12-21 13:15:44,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 314 states have (on average 1.2261146496815287) internal successors, (385), 333 states have internal predecessors, (385), 41 states have call successors, (41), 33 states have call predecessors, (41), 42 states have return successors, (68), 42 states have call predecessors, (68), 41 states have call successors, (68) [2021-12-21 13:15:44,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 494 transitions. [2021-12-21 13:15:44,299 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 494 transitions. Word has length 51 [2021-12-21 13:15:44,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:15:44,299 INFO L470 AbstractCegarLoop]: Abstraction has 398 states and 494 transitions. [2021-12-21 13:15:44,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-21 13:15:44,299 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 494 transitions. [2021-12-21 13:15:44,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-21 13:15:44,300 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:15:44,300 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, 1] [2021-12-21 13:15:44,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-21 13:15:44,300 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:15:44,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:15:44,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1800767755, now seen corresponding path program 1 times [2021-12-21 13:15:44,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:15:44,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353731364] [2021-12-21 13:15:44,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:15:44,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:15:44,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:44,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 13:15:44,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:44,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-21 13:15:44,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:44,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:15:44,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:44,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-21 13:15:44,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:44,399 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-21 13:15:44,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:15:44,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353731364] [2021-12-21 13:15:44,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353731364] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 13:15:44,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1844448756] [2021-12-21 13:15:44,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:15:44,400 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 13:15:44,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 13:15:44,401 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) [2021-12-21 13:15:44,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-21 13:15:44,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:44,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-21 13:15:44,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 13:15:44,785 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:15:44,786 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 13:15:44,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1844448756] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:15:44,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 13:15:44,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2021-12-21 13:15:44,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166909510] [2021-12-21 13:15:44,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:15:44,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 13:15:44,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:15:44,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 13:15:44,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-12-21 13:15:44,788 INFO L87 Difference]: Start difference. First operand 398 states and 494 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-21 13:15:44,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:15:44,871 INFO L93 Difference]: Finished difference Result 1163 states and 1470 transitions. [2021-12-21 13:15:44,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 13:15:44,872 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 2 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 56 [2021-12-21 13:15:44,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:15:44,875 INFO L225 Difference]: With dead ends: 1163 [2021-12-21 13:15:44,875 INFO L226 Difference]: Without dead ends: 772 [2021-12-21 13:15:44,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-12-21 13:15:44,877 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 63 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:15:44,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 482 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:15:44,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2021-12-21 13:15:44,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 770. [2021-12-21 13:15:44,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 770 states, 606 states have (on average 1.2145214521452146) internal successors, (736), 640 states have internal predecessors, (736), 81 states have call successors, (81), 66 states have call predecessors, (81), 82 states have return successors, (138), 82 states have call predecessors, (138), 81 states have call successors, (138) [2021-12-21 13:15:44,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 955 transitions. [2021-12-21 13:15:44,924 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 955 transitions. Word has length 56 [2021-12-21 13:15:44,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:15:44,924 INFO L470 AbstractCegarLoop]: Abstraction has 770 states and 955 transitions. [2021-12-21 13:15:44,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-21 13:15:44,925 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 955 transitions. [2021-12-21 13:15:44,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-21 13:15:44,927 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:15:44,927 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, 1, 1] [2021-12-21 13:15:44,949 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-21 13:15:45,130 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 [2021-12-21 13:15:45,131 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:15:45,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:15:45,131 INFO L85 PathProgramCache]: Analyzing trace with hash 804933449, now seen corresponding path program 1 times [2021-12-21 13:15:45,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:15:45,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773783381] [2021-12-21 13:15:45,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:15:45,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:15:45,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:45,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 13:15:45,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:45,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-21 13:15:45,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:45,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:15:45,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:45,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-21 13:15:45,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:45,228 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-21 13:15:45,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:15:45,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773783381] [2021-12-21 13:15:45,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773783381] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:15:45,238 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:15:45,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 13:15:45,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885718248] [2021-12-21 13:15:45,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:15:45,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 13:15:45,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:15:45,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 13:15:45,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-21 13:15:45,239 INFO L87 Difference]: Start difference. First operand 770 states and 955 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-21 13:15:45,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:15:45,498 INFO L93 Difference]: Finished difference Result 1547 states and 1916 transitions. [2021-12-21 13:15:45,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-21 13:15:45,499 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 57 [2021-12-21 13:15:45,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:15:45,502 INFO L225 Difference]: With dead ends: 1547 [2021-12-21 13:15:45,502 INFO L226 Difference]: Without dead ends: 784 [2021-12-21 13:15:45,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-12-21 13:15:45,505 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 215 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-21 13:15:45,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 538 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-21 13:15:45,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2021-12-21 13:15:45,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 770. [2021-12-21 13:15:45,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 770 states, 606 states have (on average 1.198019801980198) internal successors, (726), 640 states have internal predecessors, (726), 81 states have call successors, (81), 66 states have call predecessors, (81), 82 states have return successors, (123), 82 states have call predecessors, (123), 81 states have call successors, (123) [2021-12-21 13:15:45,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 930 transitions. [2021-12-21 13:15:45,536 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 930 transitions. Word has length 57 [2021-12-21 13:15:45,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:15:45,537 INFO L470 AbstractCegarLoop]: Abstraction has 770 states and 930 transitions. [2021-12-21 13:15:45,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-21 13:15:45,537 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 930 transitions. [2021-12-21 13:15:45,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-12-21 13:15:45,539 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:15:45,539 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, 1, 1, 1, 1, 1] [2021-12-21 13:15:45,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-21 13:15:45,540 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:15:45,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:15:45,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1321374617, now seen corresponding path program 1 times [2021-12-21 13:15:45,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:15:45,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411112296] [2021-12-21 13:15:45,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:15:45,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:15:45,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:45,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 13:15:45,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:45,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-21 13:15:45,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:45,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-21 13:15:45,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:45,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:15:45,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:45,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-21 13:15:45,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:45,643 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-21 13:15:45,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:15:45,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411112296] [2021-12-21 13:15:45,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411112296] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:15:45,644 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:15:45,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-21 13:15:45,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101730294] [2021-12-21 13:15:45,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:15:45,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-21 13:15:45,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:15:45,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-21 13:15:45,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-12-21 13:15:45,645 INFO L87 Difference]: Start difference. First operand 770 states and 930 transitions. Second operand has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 7 states have internal predecessors, (49), 3 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-21 13:15:46,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:15:46,564 INFO L93 Difference]: Finished difference Result 1873 states and 2319 transitions. [2021-12-21 13:15:46,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-12-21 13:15:46,565 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 7 states have internal predecessors, (49), 3 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 60 [2021-12-21 13:15:46,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:15:46,569 INFO L225 Difference]: With dead ends: 1873 [2021-12-21 13:15:46,570 INFO L226 Difference]: Without dead ends: 1110 [2021-12-21 13:15:46,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=491, Invalid=1765, Unknown=0, NotChecked=0, Total=2256 [2021-12-21 13:15:46,573 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 415 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 1227 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 1227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-21 13:15:46,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [420 Valid, 566 Invalid, 1440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 1227 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-21 13:15:46,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1110 states. [2021-12-21 13:15:46,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 738. [2021-12-21 13:15:46,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 738 states, 574 states have (on average 1.1672473867595818) internal successors, (670), 608 states have internal predecessors, (670), 81 states have call successors, (81), 66 states have call predecessors, (81), 82 states have return successors, (117), 82 states have call predecessors, (117), 81 states have call successors, (117) [2021-12-21 13:15:46,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 868 transitions. [2021-12-21 13:15:46,603 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 868 transitions. Word has length 60 [2021-12-21 13:15:46,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:15:46,603 INFO L470 AbstractCegarLoop]: Abstraction has 738 states and 868 transitions. [2021-12-21 13:15:46,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 7 states have internal predecessors, (49), 3 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-21 13:15:46,603 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 868 transitions. [2021-12-21 13:15:46,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-12-21 13:15:46,606 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:15:46,606 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:15:46,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-21 13:15:46,606 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:15:46,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:15:46,607 INFO L85 PathProgramCache]: Analyzing trace with hash 981971162, now seen corresponding path program 1 times [2021-12-21 13:15:46,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:15:46,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979160483] [2021-12-21 13:15:46,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:15:46,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:15:46,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:46,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 13:15:46,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:46,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-21 13:15:46,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:46,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 13:15:46,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:46,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:15:46,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:46,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 13:15:46,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:46,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-21 13:15:46,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:46,728 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-21 13:15:46,729 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:15:46,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979160483] [2021-12-21 13:15:46,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979160483] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 13:15:46,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542260296] [2021-12-21 13:15:46,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:15:46,729 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 13:15:46,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 13:15:46,731 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 13:15:46,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-21 13:15:46,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:46,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-21 13:15:46,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 13:15:47,000 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-21 13:15:47,001 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 13:15:47,234 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-21 13:15:47,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542260296] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 13:15:47,234 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 13:15:47,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 9] total 19 [2021-12-21 13:15:47,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999678340] [2021-12-21 13:15:47,235 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 13:15:47,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-21 13:15:47,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:15:47,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-21 13:15:47,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2021-12-21 13:15:47,236 INFO L87 Difference]: Start difference. First operand 738 states and 868 transitions. Second operand has 19 states, 19 states have (on average 7.157894736842105) internal successors, (136), 14 states have internal predecessors, (136), 7 states have call successors, (18), 10 states have call predecessors, (18), 8 states have return successors, (16), 8 states have call predecessors, (16), 7 states have call successors, (16) [2021-12-21 13:15:48,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:15:48,558 INFO L93 Difference]: Finished difference Result 1547 states and 1879 transitions. [2021-12-21 13:15:48,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-12-21 13:15:48,559 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 7.157894736842105) internal successors, (136), 14 states have internal predecessors, (136), 7 states have call successors, (18), 10 states have call predecessors, (18), 8 states have return successors, (16), 8 states have call predecessors, (16), 7 states have call successors, (16) Word has length 89 [2021-12-21 13:15:48,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:15:48,559 INFO L225 Difference]: With dead ends: 1547 [2021-12-21 13:15:48,559 INFO L226 Difference]: Without dead ends: 0 [2021-12-21 13:15:48,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 185 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1289 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=965, Invalid=4005, Unknown=0, NotChecked=0, Total=4970 [2021-12-21 13:15:48,563 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 1188 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 1187 mSolverCounterSat, 546 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1188 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 1733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 546 IncrementalHoareTripleChecker+Valid, 1187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-21 13:15:48,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1188 Valid, 969 Invalid, 1733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [546 Valid, 1187 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-21 13:15:48,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-21 13:15:48,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-21 13:15:48,564 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) [2021-12-21 13:15:48,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-21 13:15:48,564 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 89 [2021-12-21 13:15:48,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:15:48,564 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 13:15:48,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 7.157894736842105) internal successors, (136), 14 states have internal predecessors, (136), 7 states have call successors, (18), 10 states have call predecessors, (18), 8 states have return successors, (16), 8 states have call predecessors, (16), 7 states have call successors, (16) [2021-12-21 13:15:48,564 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-21 13:15:48,564 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-21 13:15:48,566 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-21 13:15:48,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-21 13:15:48,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-21 13:15:48,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-21 13:15:53,417 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 805 811) no Hoare annotation was computed. [2021-12-21 13:15:53,418 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 805 811) the Hoare annotation is: true [2021-12-21 13:15:53,418 INFO L854 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 596 607) the Hoare annotation is: (let ((.cse0 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse3 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (.cse5 (not (= ~pumpRunning~0 1))) (.cse1 (not (= ~pumpRunning~0 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse6 (= ~methaneLevelCritical~0 1)) (.cse4 (not (<= ~waterLevel~0 2))) (.cse7 (not (= |old(~methaneLevelCritical~0)| 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse2 .cse3 .cse5 .cse4) (or .cse2 .cse6 .cse5 .cse4 .cse7) (or .cse1 .cse2 .cse6 .cse4 .cse7))) [2021-12-21 13:15:53,418 INFO L858 garLoopResultBuilder]: For program point L600-1(lines 596 607) no Hoare annotation was computed. [2021-12-21 13:15:53,418 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 596 607) no Hoare annotation was computed. [2021-12-21 13:15:53,418 INFO L861 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 608 616) the Hoare annotation is: true [2021-12-21 13:15:53,418 INFO L858 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 608 616) no Hoare annotation was computed. [2021-12-21 13:15:53,418 INFO L858 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 608 616) no Hoare annotation was computed. [2021-12-21 13:15:53,418 INFO L858 garLoopResultBuilder]: For program point L576(lines 576 580) no Hoare annotation was computed. [2021-12-21 13:15:53,418 INFO L854 garLoopResultBuilder]: At program point L576-2(lines 572 583) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (= ~methaneLevelCritical~0 1))) (.cse4 (and (<= ~waterLevel~0 1) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 1))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse1 .cse5 .cse6 .cse3) (or .cse0 (not (= ~methaneLevelCritical~0 ~systemActive~0)) .cse6 .cse3) (or .cse4 .cse1 .cse2 .cse5 .cse3))) [2021-12-21 13:15:53,418 INFO L854 garLoopResultBuilder]: At program point L853(line 853) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (= ~methaneLevelCritical~0 1))) (.cse4 (and (<= ~waterLevel~0 1) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 1))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse1 .cse5 .cse6 .cse3) (or .cse0 (not (= ~methaneLevelCritical~0 ~systemActive~0)) .cse6 .cse3) (or .cse4 .cse1 .cse2 .cse5 .cse3))) [2021-12-21 13:15:53,419 INFO L854 garLoopResultBuilder]: At program point L560(lines 555 562) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= ~methaneLevelCritical~0 1))) (.cse3 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse0 .cse5 .cse3) (or .cse0 .cse5 .cse1 .cse3) (or .cse4 (not (= ~methaneLevelCritical~0 ~systemActive~0)) .cse2 .cse3))) [2021-12-21 13:15:53,419 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 781 804) no Hoare annotation was computed. [2021-12-21 13:15:53,419 INFO L854 garLoopResultBuilder]: At program point L895(lines 890 897) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= |old(~pumpRunning~0)| 1))) (.cse5 (and (= ~pumpRunning~0 0) (<= ~waterLevel~0 1) (<= ~waterLevel~0 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (= ~methaneLevelCritical~0 1))) (.cse3 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse4 .cse5 .cse6 .cse3) (or .cse1 .cse2 .cse4 .cse5 .cse3) (or .cse0 (not (= ~methaneLevelCritical~0 ~systemActive~0)) .cse6 .cse3))) [2021-12-21 13:15:53,419 INFO L854 garLoopResultBuilder]: At program point L668(lines 663 671) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (= ~methaneLevelCritical~0 1))) (.cse4 (and (<= ~waterLevel~0 1) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 1))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse1 .cse5 .cse6 .cse3) (or .cse0 (not (= ~methaneLevelCritical~0 ~systemActive~0)) .cse6 .cse3) (or .cse4 .cse1 .cse2 .cse5 .cse3))) [2021-12-21 13:15:53,419 INFO L854 garLoopResultBuilder]: At program point L858(line 858) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse0 (not (= 1 ~systemActive~0))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (.cse2 (not (= ~methaneLevelCritical~0 1))) (.cse3 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse1 .cse3) (or .cse5 .cse6 .cse0 .cse4 .cse3) (or .cse5 .cse6 (not (= ~methaneLevelCritical~0 ~systemActive~0)) .cse2 .cse3))) [2021-12-21 13:15:53,419 INFO L854 garLoopResultBuilder]: At program point L858-1(lines 839 863) the Hoare annotation is: (let ((.cse7 (= ~pumpRunning~0 0)) (.cse11 (<= ~waterLevel~0 1)) (.cse12 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse8 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse13 (= ~pumpRunning~0 1))) (let ((.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse10 (and .cse8 .cse13)) (.cse0 (and .cse11 .cse12 .cse13)) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (and .cse7 .cse11 .cse12)) (.cse9 (not (= ~methaneLevelCritical~0 1))) (.cse5 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 (and .cse7 .cse8) (not (= ~methaneLevelCritical~0 ~systemActive~0)) .cse9 .cse5 .cse10) (or (and .cse7 .cse11 .cse8) .cse6 .cse1 .cse2 .cse5 .cse10) (or .cse0 .cse1 .cse3 .cse4 .cse9 .cse5)))) [2021-12-21 13:15:53,419 INFO L858 garLoopResultBuilder]: For program point L792-1(lines 792 798) no Hoare annotation was computed. [2021-12-21 13:15:53,419 INFO L858 garLoopResultBuilder]: For program point L982(lines 982 986) no Hoare annotation was computed. [2021-12-21 13:15:53,419 INFO L858 garLoopResultBuilder]: For program point L693(lines 693 699) no Hoare annotation was computed. [2021-12-21 13:15:53,419 INFO L858 garLoopResultBuilder]: For program point L982-2(lines 982 986) no Hoare annotation was computed. [2021-12-21 13:15:53,419 INFO L858 garLoopResultBuilder]: For program point L689(lines 689 702) no Hoare annotation was computed. [2021-12-21 13:15:53,419 INFO L854 garLoopResultBuilder]: At program point L689-1(lines 674 706) the Hoare annotation is: (let ((.cse11 (= 1 ~systemActive~0))) (let ((.cse3 (<= ~waterLevel~0 1)) (.cse9 (<= |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1| 1)) (.cse10 (<= |timeShift_getWaterLevel_#res#1| 1)) (.cse15 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (not .cse11)) (.cse12 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse13 (not (= |old(~pumpRunning~0)| 0))) (.cse8 (= ~pumpRunning~0 0)) (.cse2 (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~4#1|)) (.cse14 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (= ~pumpRunning~0 1)) (.cse6 (not (= ~methaneLevelCritical~0 1))) (.cse7 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 (and .cse2 .cse3 .cse4 .cse5) .cse6 .cse7 (and .cse8 .cse2 .cse3 .cse4)) (or .cse0 (and .cse8 .cse2 .cse3 .cse9 .cse10) (and .cse2 .cse3 .cse11 .cse9 .cse10 .cse5) .cse12 .cse1 .cse7) (or .cse13 .cse0 (and .cse8 .cse2 .cse3 .cse14) (and .cse2 .cse11 .cse14 .cse5) .cse12 .cse7) (or .cse15 .cse13 (and .cse9 .cse10) .cse0 .cse12) (or .cse15 .cse0 .cse12 .cse1 .cse4) (or .cse13 (and .cse8 .cse2 .cse14) (and .cse2 .cse14 .cse5) (not (= ~methaneLevelCritical~0 ~systemActive~0)) .cse6 .cse7)))) [2021-12-21 13:15:53,420 INFO L854 garLoopResultBuilder]: At program point L681(line 681) the Hoare annotation is: (let ((.cse7 (= ~pumpRunning~0 0)) (.cse11 (<= ~waterLevel~0 1)) (.cse12 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse8 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse13 (= ~pumpRunning~0 1))) (let ((.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse10 (and .cse8 .cse13)) (.cse0 (and .cse11 .cse12 .cse13)) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (and .cse7 .cse11 .cse12)) (.cse9 (not (= ~methaneLevelCritical~0 1))) (.cse5 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 (and .cse7 .cse8) (not (= ~methaneLevelCritical~0 ~systemActive~0)) .cse9 .cse5 .cse10) (or (and .cse7 .cse11 .cse8) .cse6 .cse1 .cse2 .cse5 .cse10) (or .cse0 .cse1 .cse3 .cse4 .cse9 .cse5)))) [2021-12-21 13:15:53,420 INFO L858 garLoopResultBuilder]: For program point L681-1(line 681) no Hoare annotation was computed. [2021-12-21 13:15:53,420 INFO L858 garLoopResultBuilder]: For program point L785-1(lines 784 803) no Hoare annotation was computed. [2021-12-21 13:15:53,420 INFO L858 garLoopResultBuilder]: For program point L847(lines 847 855) no Hoare annotation was computed. [2021-12-21 13:15:53,420 INFO L858 garLoopResultBuilder]: For program point L843(lines 843 860) no Hoare annotation was computed. [2021-12-21 13:15:53,420 INFO L854 garLoopResultBuilder]: At program point L645(lines 640 648) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 1))) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse11 (= ~pumpRunning~0 1)) (.cse7 (= ~pumpRunning~0 0)) (.cse8 (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~4#1|)) (.cse9 (<= ~waterLevel~0 1)) (.cse6 (<= |timeShift_getWaterLevel_#res#1| 1))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 (not (= ~methaneLevelCritical~0 ~systemActive~0)) .cse2 .cse3) (or .cse4 (not (= |old(~waterLevel~0)| 1)) .cse0 .cse5 (= |timeShift_getWaterLevel_#res#1| 1)) (or (not (<= |old(~waterLevel~0)| 1)) .cse4 .cse0 .cse5 .cse6) (let ((.cse10 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse4 .cse0 (and .cse7 .cse8 .cse9 .cse10) .cse5 (and .cse8 .cse10 .cse11) .cse3)) (let ((.cse12 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (or .cse0 .cse5 .cse1 .cse3 (and .cse8 .cse9 .cse12 .cse6 .cse11) (and .cse7 .cse8 .cse9 .cse12 .cse6))))) [2021-12-21 13:15:53,420 INFO L854 garLoopResultBuilder]: At program point L988(lines 973 991) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (= ~methaneLevelCritical~0 1))) (.cse4 (and (<= ~waterLevel~0 1) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 1))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse1 .cse5 .cse6 .cse3) (or .cse0 (not (= ~methaneLevelCritical~0 ~systemActive~0)) .cse6 .cse3) (or .cse4 .cse1 .cse2 .cse5 .cse3))) [2021-12-21 13:15:53,420 INFO L854 garLoopResultBuilder]: At program point L914(lines 909 917) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (= ~methaneLevelCritical~0 1))) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse3 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse1 .cse3) (or .cse5 (not (= ~methaneLevelCritical~0 ~systemActive~0)) .cse2 .cse3) (or (not (<= |old(~waterLevel~0)| 1)) .cse5 .cse0 .cse4) (or .cse5 .cse0 .cse4 .cse3 (and (= |timeShift_isPumpRunning_#res#1| 1) (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~4#1|) (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 1))))) [2021-12-21 13:15:53,420 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 781 804) the Hoare annotation is: (let ((.cse8 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (and .cse8 (= ~pumpRunning~0 1))) (.cse0 (not (= 1 ~systemActive~0))) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (and (= ~pumpRunning~0 0) .cse8)) (.cse2 (not (= ~methaneLevelCritical~0 1))) (.cse3 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse1 .cse3 .cse4) (or .cse6 .cse7 .cse0 .cse5 .cse3) (or .cse6 .cse7 (not (= ~methaneLevelCritical~0 ~systemActive~0)) .cse2 .cse3)))) [2021-12-21 13:15:53,420 INFO L858 garLoopResultBuilder]: For program point L559(line 559) no Hoare annotation was computed. [2021-12-21 13:15:53,420 INFO L858 garLoopResultBuilder]: For program point L683(lines 683 703) no Hoare annotation was computed. [2021-12-21 13:15:53,420 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 781 804) no Hoare annotation was computed. [2021-12-21 13:15:53,421 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 559) no Hoare annotation was computed. [2021-12-21 13:15:53,421 INFO L861 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: true [2021-12-21 13:15:53,421 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 52 81) no Hoare annotation was computed. [2021-12-21 13:15:53,421 INFO L858 garLoopResultBuilder]: For program point L63(line 63) no Hoare annotation was computed. [2021-12-21 13:15:53,421 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 52 81) the Hoare annotation is: true [2021-12-21 13:15:53,421 INFO L861 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: true [2021-12-21 13:15:53,421 INFO L861 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2021-12-21 13:15:53,421 INFO L858 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2021-12-21 13:15:53,421 INFO L861 garLoopResultBuilder]: At program point L77(lines 52 81) the Hoare annotation is: true [2021-12-21 13:15:53,421 INFO L858 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-12-21 13:15:53,421 INFO L858 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2021-12-21 13:15:53,421 INFO L858 garLoopResultBuilder]: For program point L729(lines 729 735) no Hoare annotation was computed. [2021-12-21 13:15:53,421 INFO L854 garLoopResultBuilder]: At program point L184(lines 179 187) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-21 13:15:53,421 INFO L858 garLoopResultBuilder]: For program point L729-1(lines 729 735) no Hoare annotation was computed. [2021-12-21 13:15:53,421 INFO L858 garLoopResultBuilder]: For program point L721(lines 721 725) no Hoare annotation was computed. [2021-12-21 13:15:53,421 INFO L854 garLoopResultBuilder]: At program point L176(lines 172 178) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-21 13:15:53,421 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-21 13:15:53,422 INFO L854 garLoopResultBuilder]: At program point L767(lines 718 768) the Hoare annotation is: false [2021-12-21 13:15:53,422 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-21 13:15:53,422 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-21 13:15:53,422 INFO L858 garLoopResultBuilder]: For program point L140(lines 140 147) no Hoare annotation was computed. [2021-12-21 13:15:53,422 INFO L858 garLoopResultBuilder]: For program point L140-2(lines 140 147) no Hoare annotation was computed. [2021-12-21 13:15:53,422 INFO L854 garLoopResultBuilder]: At program point L169(lines 165 171) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-21 13:15:53,422 INFO L858 garLoopResultBuilder]: For program point L739(lines 739 745) no Hoare annotation was computed. [2021-12-21 13:15:53,422 INFO L858 garLoopResultBuilder]: For program point L739-1(lines 739 745) no Hoare annotation was computed. [2021-12-21 13:15:53,422 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-21 13:15:53,422 INFO L854 garLoopResultBuilder]: At program point L764(lines 719 766) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 1)) (.cse5 (= ~methaneLevelCritical~0 1)) (.cse3 (<= ~waterLevel~0 2)) (.cse6 (= ~pumpRunning~0 0)) (.cse0 (= ~methaneLevelCritical~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse5 .cse2 .cse3 .cse4) (and .cse6 .cse1 .cse5 .cse2 .cse3) (and .cse6 .cse0 (<= ~waterLevel~0 1) .cse1 .cse2))) [2021-12-21 13:15:53,422 INFO L861 garLoopResultBuilder]: At program point L124(lines 117 126) the Hoare annotation is: true [2021-12-21 13:15:53,422 INFO L854 garLoopResultBuilder]: At program point L731(line 731) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 1)) (.cse5 (= ~methaneLevelCritical~0 1)) (.cse3 (<= ~waterLevel~0 2)) (.cse6 (= ~pumpRunning~0 0)) (.cse0 (= ~methaneLevelCritical~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse5 .cse2 .cse3 .cse4) (and .cse6 .cse1 .cse5 .cse2 .cse3) (and .cse6 .cse0 (<= ~waterLevel~0 1) .cse1 .cse2))) [2021-12-21 13:15:53,422 INFO L861 garLoopResultBuilder]: At program point L149(lines 130 152) the Hoare annotation is: true [2021-12-21 13:15:53,422 INFO L858 garLoopResultBuilder]: For program point L757(lines 757 761) no Hoare annotation was computed. [2021-12-21 13:15:53,422 INFO L854 garLoopResultBuilder]: At program point L757-2(lines 749 762) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 1)) (.cse0 (= ~methaneLevelCritical~0 0)) (.cse6 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse5 (= ~methaneLevelCritical~0 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse5 .cse2 .cse3 .cse4) (and .cse6 .cse0 .cse1 .cse2 .cse3) (and .cse6 .cse1 .cse5 .cse2 .cse3))) [2021-12-21 13:15:53,422 INFO L854 garLoopResultBuilder]: At program point L113(lines 109 115) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-21 13:15:53,423 INFO L858 garLoopResultBuilder]: For program point L720(lines 719 766) no Hoare annotation was computed. [2021-12-21 13:15:53,423 INFO L858 garLoopResultBuilder]: For program point L749(lines 749 762) no Hoare annotation was computed. [2021-12-21 13:15:53,423 INFO L854 garLoopResultBuilder]: At program point L741(line 741) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 1)) (.cse0 (= ~methaneLevelCritical~0 0)) (.cse6 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse5 (= ~methaneLevelCritical~0 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse5 .cse2 .cse3 .cse4) (and .cse6 .cse0 .cse1 .cse2 .cse3) (and .cse6 .cse1 .cse5 .cse2 .cse3))) [2021-12-21 13:15:53,423 INFO L854 garLoopResultBuilder]: At program point L997(lines 992 999) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 1)) (.cse0 (= ~methaneLevelCritical~0 0)) (.cse6 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse5 (= ~methaneLevelCritical~0 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse5 .cse2 .cse3 .cse4) (and .cse6 .cse0 .cse1 .cse2 .cse3) (and .cse6 .cse1 .cse5 .cse2 .cse3))) [2021-12-21 13:15:53,423 INFO L861 garLoopResultBuilder]: At program point L770(lines 709 774) the Hoare annotation is: true [2021-12-21 13:15:53,423 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 813 837) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse6 (not (= ~methaneLevelCritical~0 ~systemActive~0))) (.cse4 (not (<= ~waterLevel~0 2))) (.cse7 (not (= ~methaneLevelCritical~0 1))) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (= |old(~pumpRunning~0)| 1))) (.cse8 (not (<= ~waterLevel~0 1))) (.cse9 (= ~pumpRunning~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse7 .cse8 .cse9) (or .cse0 .cse1 .cse6 .cse4 .cse7) (or .cse2 .cse3 .cse5 .cse8 .cse9))) [2021-12-21 13:15:53,423 INFO L854 garLoopResultBuilder]: At program point L832(line 832) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (<= ~waterLevel~0 2))) (.cse1 (not (= ~methaneLevelCritical~0 ~systemActive~0))) (.cse3 (not (= ~methaneLevelCritical~0 1))) (.cse4 (not (= 1 ~systemActive~0))) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse6 (not (= |old(~pumpRunning~0)| 1))) (.cse7 (not (<= ~waterLevel~0 1))) (.cse8 (= ~pumpRunning~0 1))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse5 .cse2) (or .cse6 .cse1 .cse3 .cse7 .cse8) (or .cse4 .cse5 .cse6 .cse7 .cse8))) [2021-12-21 13:15:53,423 INFO L858 garLoopResultBuilder]: For program point L832-1(lines 813 837) no Hoare annotation was computed. [2021-12-21 13:15:53,423 INFO L858 garLoopResultBuilder]: For program point L880(lines 880 886) no Hoare annotation was computed. [2021-12-21 13:15:53,423 INFO L854 garLoopResultBuilder]: At program point L880-2(lines 873 889) the Hoare annotation is: (let ((.cse7 (<= ~waterLevel~0 1)) (.cse4 (= 1 ~systemActive~0))) (let ((.cse10 (not (= ~methaneLevelCritical~0 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse9 (not (<= ~waterLevel~0 2))) (.cse1 (not (= |processEnvironment__wrappee__highWaterSensor_~tmp~6#1| 0))) (.cse5 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0)) (.cse6 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~9#1| 0)) (.cse8 (= ~pumpRunning~0 1)) (.cse11 (not .cse4)) (.cse14 (not (= ~methaneLevelCritical~0 0))) (.cse12 (not (= |old(~pumpRunning~0)| 1))) (.cse13 (not .cse7))) (and (let ((.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (= ~pumpRunning~0 0))) (or .cse0 (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse1 .cse2 .cse3 .cse7 .cse4) (not (= ~methaneLevelCritical~0 ~systemActive~0)) (and .cse1 .cse7 .cse4 .cse8) .cse9 .cse10 (and .cse1 .cse4 .cse5 .cse6 .cse8))) (or .cse11 .cse12 .cse10 .cse13) (let ((.cse15 (= |processEnvironment__wrappee__highWaterSensor_isMethaneAlarm_#res#1| ~methaneLevelCritical~0)) (.cse16 (= ~methaneLevelCritical~0 |processEnvironment__wrappee__highWaterSensor_activatePump_~tmp~8#1|))) (or .cse0 .cse11 .cse14 .cse9 (and .cse1 .cse7 .cse4 .cse15 .cse16 .cse8) (and .cse1 .cse4 .cse15 .cse16 .cse5 .cse6 .cse8))) (or .cse11 .cse14 .cse12 .cse13)))) [2021-12-21 13:15:53,423 INFO L858 garLoopResultBuilder]: For program point L653(lines 653 659) no Hoare annotation was computed. [2021-12-21 13:15:53,423 INFO L854 garLoopResultBuilder]: At program point L969(lines 954 972) the Hoare annotation is: (let ((.cse9 (<= ~waterLevel~0 1)) (.cse10 (= ~pumpRunning~0 0))) (let ((.cse3 (not (= ~methaneLevelCritical~0 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (and .cse10 (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0)) (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~2#1|) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~9#1| 0))) (.cse2 (not (<= ~waterLevel~0 2))) (.cse4 (and .cse10 .cse9)) (.cse5 (not (= 1 ~systemActive~0))) (.cse8 (not (= ~methaneLevelCritical~0 0))) (.cse6 (not (= |old(~pumpRunning~0)| 1))) (.cse7 (not .cse9))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 ~systemActive~0)) .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse3 .cse7) (or .cse0 .cse5 .cse1 .cse8 .cse2 .cse4) (or .cse5 .cse8 .cse6 .cse7)))) [2021-12-21 13:15:53,424 INFO L854 garLoopResultBuilder]: At program point L905(lines 898 908) the Hoare annotation is: (let ((.cse4 (= 1 ~systemActive~0)) (.cse7 (<= ~waterLevel~0 1))) (let ((.cse9 (not (= ~methaneLevelCritical~0 1))) (.cse11 (not (= |old(~pumpRunning~0)| 1))) (.cse12 (not .cse7)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse10 (not .cse4)) (.cse13 (not (= ~methaneLevelCritical~0 0))) (.cse8 (not (<= ~waterLevel~0 2))) (.cse1 (not (= |processEnvironment__wrappee__highWaterSensor_~tmp~6#1| 0))) (.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (= ~pumpRunning~0 0)) (.cse5 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0)) (.cse6 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~9#1| 0))) (and (or .cse0 (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse1 .cse2 .cse3 .cse7 .cse4) (not (= ~methaneLevelCritical~0 ~systemActive~0)) .cse8 .cse9) (or .cse10 .cse11 .cse9 .cse12) (or .cse10 .cse13 .cse11 .cse12) (let ((.cse14 (= |processEnvironment__wrappee__highWaterSensor_isMethaneAlarm_#res#1| ~methaneLevelCritical~0))) (or .cse0 .cse10 (and .cse1 .cse2 .cse3 .cse7 .cse4 .cse14) .cse13 .cse8 (and .cse1 .cse2 .cse3 .cse4 .cse14 .cse5 .cse6)))))) [2021-12-21 13:15:53,424 INFO L854 garLoopResultBuilder]: At program point L903(line 903) the Hoare annotation is: (let ((.cse9 (<= ~waterLevel~0 1)) (.cse11 (not (= |processEnvironment__wrappee__highWaterSensor_~tmp~6#1| 0))) (.cse12 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse13 (= ~pumpRunning~0 0)) (.cse10 (= 1 ~systemActive~0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (and .cse11 .cse12 .cse13 .cse10 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~9#1| 0))) (.cse3 (and .cse11 .cse12 .cse13 .cse9 .cse10)) (.cse5 (not (<= ~waterLevel~0 2))) (.cse6 (not (= ~methaneLevelCritical~0 1))) (.cse2 (not .cse10)) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse7 (not (= |old(~pumpRunning~0)| 1))) (.cse8 (not .cse9))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse0 .cse1 .cse3 (not (= ~methaneLevelCritical~0 ~systemActive~0)) .cse5 .cse6) (or .cse2 .cse7 .cse6 .cse8) (or .cse2 .cse4 .cse7 .cse8)))) [2021-12-21 13:15:53,424 INFO L858 garLoopResultBuilder]: For program point L903-1(line 903) no Hoare annotation was computed. [2021-12-21 13:15:53,424 INFO L858 garLoopResultBuilder]: For program point L963(lines 963 967) no Hoare annotation was computed. [2021-12-21 13:15:53,424 INFO L858 garLoopResultBuilder]: For program point L963-2(lines 963 967) no Hoare annotation was computed. [2021-12-21 13:15:53,424 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 813 837) no Hoare annotation was computed. [2021-12-21 13:15:53,424 INFO L854 garLoopResultBuilder]: At program point L827(line 827) the Hoare annotation is: (let ((.cse8 (<= ~waterLevel~0 1))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (<= ~waterLevel~0 2))) (.cse4 (and (= ~pumpRunning~0 0) .cse8)) (.cse5 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse6 (not (= |old(~pumpRunning~0)| 1))) (.cse7 (not .cse8))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 (not (= ~methaneLevelCritical~0 ~systemActive~0)) .cse3 .cse5 .cse4) (or .cse1 .cse6 .cse5 .cse7) (or .cse1 .cse2 .cse6 .cse7)))) [2021-12-21 13:15:53,424 INFO L858 garLoopResultBuilder]: For program point L821(lines 821 829) no Hoare annotation was computed. [2021-12-21 13:15:53,424 INFO L854 garLoopResultBuilder]: At program point L658(lines 649 662) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse10 (<= ~waterLevel~0 1))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (<= ~waterLevel~0 2))) (.cse8 (not (= ~methaneLevelCritical~0 1))) (.cse3 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0)) (.cse6 (and .cse2 .cse10)) (.cse1 (not (= 1 ~systemActive~0))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse7 (not (= |old(~pumpRunning~0)| 1))) (.cse9 (not .cse10))) (and (or .cse0 .cse1 (and .cse2 .cse3) .cse4 .cse5 .cse6) (or .cse1 .cse7 .cse8 .cse9) (or .cse0 (not (= ~methaneLevelCritical~0 ~systemActive~0)) .cse5 .cse8 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse3) .cse6) (or .cse1 .cse4 .cse7 .cse9)))) [2021-12-21 13:15:53,424 INFO L858 garLoopResultBuilder]: For program point L817(lines 817 834) no Hoare annotation was computed. [2021-12-21 13:15:53,424 INFO L854 garLoopResultBuilder]: At program point L869(lines 864 871) the Hoare annotation is: (let ((.cse8 (<= ~waterLevel~0 1)) (.cse9 (= 1 ~systemActive~0))) (let ((.cse0 (not .cse9)) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not .cse8)) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (<= ~waterLevel~0 2))) (.cse2 (not (= ~methaneLevelCritical~0 1))) (.cse7 (not (= |processEnvironment__wrappee__highWaterSensor_~tmp~6#1| 0))) (.cse13 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0)) (.cse14 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~9#1| 0)) (.cse12 (= ~pumpRunning~0 1))) (and (or .cse0 .cse1 .cse2 .cse3) (let ((.cse10 (= |processEnvironment__wrappee__highWaterSensor_isMethaneAlarm_#res#1| ~methaneLevelCritical~0)) (.cse11 (= ~methaneLevelCritical~0 |processEnvironment__wrappee__highWaterSensor_activatePump_~tmp~8#1|))) (or .cse4 .cse0 .cse5 .cse6 (and .cse7 .cse8 .cse9 .cse10 .cse11 .cse12) (and .cse7 .cse9 .cse10 .cse11 .cse13 .cse14 .cse12))) (or .cse0 .cse5 .cse1 .cse3) (or .cse4 (not (= ~methaneLevelCritical~0 ~systemActive~0)) (and .cse7 .cse8 .cse9 .cse12) .cse6 .cse2 (and .cse7 .cse9 .cse13 .cse14 .cse12))))) [2021-12-21 13:15:53,424 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 584 595) no Hoare annotation was computed. [2021-12-21 13:15:53,424 INFO L858 garLoopResultBuilder]: For program point L588-1(lines 584 595) no Hoare annotation was computed. [2021-12-21 13:15:53,425 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 584 595) the Hoare annotation is: (let ((.cse5 (not (= ~pumpRunning~0 0))) (.cse2 (not (= ~methaneLevelCritical~0 1))) (.cse0 (not (= 1 ~systemActive~0))) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= ~pumpRunning~0 1))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or (not (<= |old(~waterLevel~0)| 1)) .cse5 .cse0 .cse6 .cse3) (or .cse5 .cse0 .cse2 .cse3 .cse4) (or .cse0 .cse6 .cse1 .cse3 .cse4))) [2021-12-21 13:15:53,427 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:15:53,433 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-21 13:15:53,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 01:15:53 BoogieIcfgContainer [2021-12-21 13:15:53,506 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-21 13:15:53,506 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 13:15:53,506 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 13:15:53,506 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 13:15:53,507 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:15:42" (3/4) ... [2021-12-21 13:15:53,528 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-21 13:15:53,533 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-12-21 13:15:53,533 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-12-21 13:15:53,533 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2021-12-21 13:15:53,533 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-12-21 13:15:53,533 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-12-21 13:15:53,533 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2021-12-21 13:15:53,533 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-12-21 13:15:53,538 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 54 nodes and edges [2021-12-21 13:15:53,538 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-12-21 13:15:53,539 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-21 13:15:53,541 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-21 13:15:53,542 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-21 13:15:53,542 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-21 13:15:53,542 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-21 13:15:53,577 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2)) && ((((((waterLevel <= 1 && waterLevel <= \old(waterLevel)) && pumpRunning == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2))) && (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2))) && ((((((waterLevel <= 1 && waterLevel <= \old(waterLevel)) && pumpRunning == 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) [2021-12-21 13:15:53,578 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((waterLevel <= 1 && waterLevel <= \old(waterLevel)) && pumpRunning == 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || ((pumpRunning == 0 && waterLevel <= 1) && waterLevel <= \old(waterLevel))) || !(\old(waterLevel) <= 2)) && (((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(methaneLevelCritical == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2)) || (\old(waterLevel) == waterLevel && pumpRunning == 1))) && (((((((pumpRunning == 0 && waterLevel <= 1) && \old(waterLevel) == waterLevel) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2)) || (\old(waterLevel) == waterLevel && pumpRunning == 1))) && (((((((waterLevel <= 1 && waterLevel <= \old(waterLevel)) && pumpRunning == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || ((pumpRunning == 0 && waterLevel <= 1) && waterLevel <= \old(waterLevel))) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2)) [2021-12-21 13:15:53,579 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || (((methaneLevelCritical == tmp && waterLevel <= 1) && waterLevel <= \old(waterLevel)) && pumpRunning == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2)) || (((pumpRunning == 0 && methaneLevelCritical == tmp) && waterLevel <= 1) && waterLevel <= \old(waterLevel))) && (((((!(1 == systemActive) || ((((pumpRunning == 0 && methaneLevelCritical == tmp) && waterLevel <= 1) && tmp___0 <= 1) && \result <= 1)) || (((((methaneLevelCritical == tmp && waterLevel <= 1) && 1 == systemActive) && tmp___0 <= 1) && \result <= 1) && pumpRunning == 1)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2))) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (((pumpRunning == 0 && methaneLevelCritical == tmp) && waterLevel <= 1) && \old(waterLevel) == waterLevel)) || (((methaneLevelCritical == tmp && 1 == systemActive) && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2))) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (tmp___0 <= 1 && \result <= 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || waterLevel <= \old(waterLevel))) && (((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && methaneLevelCritical == tmp) && \old(waterLevel) == waterLevel)) || ((methaneLevelCritical == tmp && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(methaneLevelCritical == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2)) [2021-12-21 13:15:53,579 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || (((((!(tmp == 0) && pumpRunning == \old(pumpRunning)) && pumpRunning == 0) && 1 == systemActive) && \result == 0) && tmp == 0)) || ((((!(tmp == 0) && pumpRunning == \old(pumpRunning)) && pumpRunning == 0) && waterLevel <= 1) && 1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(waterLevel <= 2)) || !(methaneLevelCritical == 1)) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(waterLevel <= 1))) && (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(waterLevel <= 1))) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (((((!(tmp == 0) && pumpRunning == \old(pumpRunning)) && pumpRunning == 0) && waterLevel <= 1) && 1 == systemActive) && \result == methaneLevelCritical)) || !(methaneLevelCritical == 0)) || !(waterLevel <= 2)) || ((((((!(tmp == 0) && pumpRunning == \old(pumpRunning)) && pumpRunning == 0) && 1 == systemActive) && \result == methaneLevelCritical) && \result == 0) && tmp == 0)) [2021-12-21 13:15:53,579 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2)) && ((((((waterLevel <= 1 && waterLevel <= \old(waterLevel)) && pumpRunning == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2))) && (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2))) && ((((((waterLevel <= 1 && waterLevel <= \old(waterLevel)) && pumpRunning == 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) [2021-12-21 13:15:53,579 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2)) && (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || \result == 1)) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || \result <= 1)) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (((pumpRunning == 0 && methaneLevelCritical == tmp) && waterLevel <= 1) && \old(waterLevel) == waterLevel)) || !(methaneLevelCritical == 0)) || ((methaneLevelCritical == tmp && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(\old(waterLevel) <= 2))) && (((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || ((((methaneLevelCritical == tmp && waterLevel <= 1) && waterLevel <= \old(waterLevel)) && \result <= 1) && pumpRunning == 1)) || ((((pumpRunning == 0 && methaneLevelCritical == tmp) && waterLevel <= 1) && waterLevel <= \old(waterLevel)) && \result <= 1)) [2021-12-21 13:15:53,579 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (pumpRunning == 0 && \result == 0)) || !(methaneLevelCritical == 0)) || !(waterLevel <= 2)) || (pumpRunning == 0 && waterLevel <= 1)) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(waterLevel <= 1))) && (((((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == systemActive)) || !(waterLevel <= 2)) || !(methaneLevelCritical == 1)) || (pumpRunning == \old(pumpRunning) && \result == 0)) || (pumpRunning == 0 && waterLevel <= 1))) && (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(waterLevel <= 1)) [2021-12-21 13:15:53,579 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(\old(pumpRunning) == 0) || (((((!(tmp == 0) && pumpRunning == \old(pumpRunning)) && pumpRunning == 0) && 1 == systemActive) && \result == 0) && tmp == 0)) || ((((!(tmp == 0) && pumpRunning == \old(pumpRunning)) && pumpRunning == 0) && waterLevel <= 1) && 1 == systemActive)) || !(methaneLevelCritical == systemActive)) || (((!(tmp == 0) && waterLevel <= 1) && 1 == systemActive) && pumpRunning == 1)) || !(waterLevel <= 2)) || !(methaneLevelCritical == 1)) || ((((!(tmp == 0) && 1 == systemActive) && \result == 0) && tmp == 0) && pumpRunning == 1)) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(waterLevel <= 1))) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(waterLevel <= 2)) || (((((!(tmp == 0) && waterLevel <= 1) && 1 == systemActive) && \result == methaneLevelCritical) && methaneLevelCritical == tmp) && pumpRunning == 1)) || ((((((!(tmp == 0) && 1 == systemActive) && \result == methaneLevelCritical) && methaneLevelCritical == tmp) && \result == 0) && tmp == 0) && pumpRunning == 1))) && (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(waterLevel <= 1)) [2021-12-21 13:15:53,580 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(waterLevel <= 1)) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(waterLevel <= 2)) || (((((!(tmp == 0) && waterLevel <= 1) && 1 == systemActive) && \result == methaneLevelCritical) && methaneLevelCritical == tmp) && pumpRunning == 1)) || ((((((!(tmp == 0) && 1 == systemActive) && \result == methaneLevelCritical) && methaneLevelCritical == tmp) && \result == 0) && tmp == 0) && pumpRunning == 1))) && (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(waterLevel <= 1))) && (((((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == systemActive)) || (((!(tmp == 0) && waterLevel <= 1) && 1 == systemActive) && pumpRunning == 1)) || !(waterLevel <= 2)) || !(methaneLevelCritical == 1)) || ((((!(tmp == 0) && 1 == systemActive) && \result == 0) && tmp == 0) && pumpRunning == 1)) [2021-12-21 13:15:53,580 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2)) && ((((((waterLevel <= 1 && waterLevel <= \old(waterLevel)) && pumpRunning == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2))) && (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2))) && ((((((waterLevel <= 1 && waterLevel <= \old(waterLevel)) && pumpRunning == 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) [2021-12-21 13:15:53,580 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2)) && (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2))) && (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2))) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2)) || (((\result == 1 && methaneLevelCritical == tmp) && \old(waterLevel) == waterLevel) && pumpRunning == 1)) [2021-12-21 13:15:53,580 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || ((((pumpRunning == 0 && !(\result == 0)) && 1 <= tmp___0) && \result == 0) && tmp == 0)) || !(methaneLevelCritical == systemActive)) || !(waterLevel <= 2)) || !(methaneLevelCritical == 1)) || (pumpRunning == 0 && waterLevel <= 1)) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(waterLevel <= 1))) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((((pumpRunning == 0 && !(\result == 0)) && 1 <= tmp___0) && \result == 0) && tmp == 0)) || !(methaneLevelCritical == 0)) || !(waterLevel <= 2)) || (pumpRunning == 0 && waterLevel <= 1))) && (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(waterLevel <= 1)) [2021-12-21 13:15:53,580 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2)) && ((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((pumpRunning == 0 && waterLevel <= 1) && waterLevel <= \old(waterLevel))) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || ((pumpRunning == 0 && waterLevel <= 1) && waterLevel <= \old(waterLevel))) || !(\old(waterLevel) <= 2))) && (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2)) [2021-12-21 13:15:53,582 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2))) && (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2))) && (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2)) [2021-12-21 13:15:53,628 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-21 13:15:53,628 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 13:15:53,629 INFO L158 Benchmark]: Toolchain (without parser) took 12877.12ms. Allocated memory was 96.5MB in the beginning and 207.6MB in the end (delta: 111.1MB). Free memory was 63.3MB in the beginning and 78.3MB in the end (delta: -14.9MB). Peak memory consumption was 94.4MB. Max. memory is 16.1GB. [2021-12-21 13:15:53,629 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 73.4MB. Free memory was 43.9MB in the beginning and 43.9MB in the end (delta: 25.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 13:15:53,629 INFO L158 Benchmark]: CACSL2BoogieTranslator took 719.21ms. Allocated memory is still 96.5MB. Free memory was 63.3MB in the beginning and 62.8MB in the end (delta: 478.9kB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2021-12-21 13:15:53,629 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.04ms. Allocated memory is still 96.5MB. Free memory was 62.8MB in the beginning and 60.3MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 13:15:53,630 INFO L158 Benchmark]: Boogie Preprocessor took 48.66ms. Allocated memory is still 96.5MB. Free memory was 60.3MB in the beginning and 58.8MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-21 13:15:53,630 INFO L158 Benchmark]: RCFGBuilder took 449.71ms. Allocated memory is still 96.5MB. Free memory was 58.8MB in the beginning and 42.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-21 13:15:53,630 INFO L158 Benchmark]: TraceAbstraction took 11416.17ms. Allocated memory was 96.5MB in the beginning and 207.6MB in the end (delta: 111.1MB). Free memory was 41.5MB in the beginning and 85.6MB in the end (delta: -44.1MB). Peak memory consumption was 90.9MB. Max. memory is 16.1GB. [2021-12-21 13:15:53,630 INFO L158 Benchmark]: Witness Printer took 122.11ms. Allocated memory is still 207.6MB. Free memory was 85.6MB in the beginning and 78.3MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-21 13:15:53,631 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 73.4MB. Free memory was 43.9MB in the beginning and 43.9MB in the end (delta: 25.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 719.21ms. Allocated memory is still 96.5MB. Free memory was 63.3MB in the beginning and 62.8MB in the end (delta: 478.9kB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.04ms. Allocated memory is still 96.5MB. Free memory was 62.8MB in the beginning and 60.3MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 48.66ms. Allocated memory is still 96.5MB. Free memory was 60.3MB in the beginning and 58.8MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 449.71ms. Allocated memory is still 96.5MB. Free memory was 58.8MB in the beginning and 42.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 11416.17ms. Allocated memory was 96.5MB in the beginning and 207.6MB in the end (delta: 111.1MB). Free memory was 41.5MB in the beginning and 85.6MB in the end (delta: -44.1MB). Peak memory consumption was 90.9MB. Max. memory is 16.1GB. * Witness Printer took 122.11ms. Allocated memory is still 207.6MB. Free memory was 85.6MB in the beginning and 78.3MB in the end (delta: 7.3MB). 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: 559]: 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 8 procedures, 94 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.3s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.7s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2880 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2852 mSDsluCounter, 4899 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3410 mSDsCounter, 1054 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3635 IncrementalHoareTripleChecker+Invalid, 4689 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1054 mSolverCounterUnsat, 1489 mSDtfsCounter, 3635 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 526 GetRequests, 329 SyntacticMatches, 3 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2022 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=770occurred in iteration=9, InterpolantAutomatonStates: 175, 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, 12 MinimizatonAttempts, 479 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 44 LocationsWithAnnotation, 2016 PreInvPairs, 2400 NumberOfFragments, 3075 HoareAnnotationTreeSize, 2016 FomulaSimplifications, 396 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 44 FomulaSimplificationsInter, 30915 FormulaSimplificationTreeSizeReductionInter, 4.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 726 NumberOfCodeBlocks, 726 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 800 ConstructedInterpolants, 0 QuantifiedInterpolants, 1612 SizeOfPredicates, 8 NumberOfNonLiveVariables, 837 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 73/93 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: 555]: Loop Invariant Derived loop invariant: (((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2))) && (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2))) && (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2)) - InvariantResult [Line: 649]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (pumpRunning == 0 && \result == 0)) || !(methaneLevelCritical == 0)) || !(waterLevel <= 2)) || (pumpRunning == 0 && waterLevel <= 1)) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(waterLevel <= 1))) && (((((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == systemActive)) || !(waterLevel <= 2)) || !(methaneLevelCritical == 1)) || (pumpRunning == \old(pumpRunning) && \result == 0)) || (pumpRunning == 0 && waterLevel <= 1))) && (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(waterLevel <= 1)) - InvariantResult [Line: 864]: Loop Invariant Derived loop invariant: (((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(waterLevel <= 1)) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(waterLevel <= 2)) || (((((!(tmp == 0) && waterLevel <= 1) && 1 == systemActive) && \result == methaneLevelCritical) && methaneLevelCritical == tmp) && pumpRunning == 1)) || ((((((!(tmp == 0) && 1 == systemActive) && \result == methaneLevelCritical) && methaneLevelCritical == tmp) && \result == 0) && tmp == 0) && pumpRunning == 1))) && (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(waterLevel <= 1))) && (((((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == systemActive)) || (((!(tmp == 0) && waterLevel <= 1) && 1 == systemActive) && pumpRunning == 1)) || !(waterLevel <= 2)) || !(methaneLevelCritical == 1)) || ((((!(tmp == 0) && 1 == systemActive) && \result == 0) && tmp == 0) && pumpRunning == 1)) - InvariantResult [Line: 718]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 973]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2)) && ((((((waterLevel <= 1 && waterLevel <= \old(waterLevel)) && pumpRunning == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2))) && (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2))) && ((((((waterLevel <= 1 && waterLevel <= \old(waterLevel)) && pumpRunning == 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) - InvariantResult [Line: 674]: Loop Invariant Derived loop invariant: (((((((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || (((methaneLevelCritical == tmp && waterLevel <= 1) && waterLevel <= \old(waterLevel)) && pumpRunning == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2)) || (((pumpRunning == 0 && methaneLevelCritical == tmp) && waterLevel <= 1) && waterLevel <= \old(waterLevel))) && (((((!(1 == systemActive) || ((((pumpRunning == 0 && methaneLevelCritical == tmp) && waterLevel <= 1) && tmp___0 <= 1) && \result <= 1)) || (((((methaneLevelCritical == tmp && waterLevel <= 1) && 1 == systemActive) && tmp___0 <= 1) && \result <= 1) && pumpRunning == 1)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2))) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (((pumpRunning == 0 && methaneLevelCritical == tmp) && waterLevel <= 1) && \old(waterLevel) == waterLevel)) || (((methaneLevelCritical == tmp && 1 == systemActive) && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2))) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (tmp___0 <= 1 && \result <= 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || waterLevel <= \old(waterLevel))) && (((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && methaneLevelCritical == tmp) && \old(waterLevel) == waterLevel)) || ((methaneLevelCritical == tmp && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(methaneLevelCritical == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2)) - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 992]: Loop Invariant Derived loop invariant: ((((((methaneLevelCritical == 0 && 1 == systemActive) && splverifierCounter == 0) && waterLevel <= 2) && pumpRunning == 1) || ((((1 == systemActive && methaneLevelCritical == 1) && splverifierCounter == 0) && waterLevel <= 2) && pumpRunning == 1)) || ((((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && splverifierCounter == 0) && waterLevel <= 2)) || ((((pumpRunning == 0 && 1 == systemActive) && methaneLevelCritical == 1) && splverifierCounter == 0) && waterLevel <= 2) - InvariantResult [Line: 117]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 873]: Loop Invariant Derived loop invariant: (((((((((!(\old(pumpRunning) == 0) || (((((!(tmp == 0) && pumpRunning == \old(pumpRunning)) && pumpRunning == 0) && 1 == systemActive) && \result == 0) && tmp == 0)) || ((((!(tmp == 0) && pumpRunning == \old(pumpRunning)) && pumpRunning == 0) && waterLevel <= 1) && 1 == systemActive)) || !(methaneLevelCritical == systemActive)) || (((!(tmp == 0) && waterLevel <= 1) && 1 == systemActive) && pumpRunning == 1)) || !(waterLevel <= 2)) || !(methaneLevelCritical == 1)) || ((((!(tmp == 0) && 1 == systemActive) && \result == 0) && tmp == 0) && pumpRunning == 1)) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(waterLevel <= 1))) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(waterLevel <= 2)) || (((((!(tmp == 0) && waterLevel <= 1) && 1 == systemActive) && \result == methaneLevelCritical) && methaneLevelCritical == tmp) && pumpRunning == 1)) || ((((((!(tmp == 0) && 1 == systemActive) && \result == methaneLevelCritical) && methaneLevelCritical == tmp) && \result == 0) && tmp == 0) && pumpRunning == 1))) && (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(waterLevel <= 1)) - InvariantResult [Line: 179]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 898]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || (((((!(tmp == 0) && pumpRunning == \old(pumpRunning)) && pumpRunning == 0) && 1 == systemActive) && \result == 0) && tmp == 0)) || ((((!(tmp == 0) && pumpRunning == \old(pumpRunning)) && pumpRunning == 0) && waterLevel <= 1) && 1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(waterLevel <= 2)) || !(methaneLevelCritical == 1)) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(waterLevel <= 1))) && (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(waterLevel <= 1))) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (((((!(tmp == 0) && pumpRunning == \old(pumpRunning)) && pumpRunning == 0) && waterLevel <= 1) && 1 == systemActive) && \result == methaneLevelCritical)) || !(methaneLevelCritical == 0)) || !(waterLevel <= 2)) || ((((((!(tmp == 0) && pumpRunning == \old(pumpRunning)) && pumpRunning == 0) && 1 == systemActive) && \result == methaneLevelCritical) && \result == 0) && tmp == 0)) - InvariantResult [Line: 709]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2)) && ((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((pumpRunning == 0 && waterLevel <= 1) && waterLevel <= \old(waterLevel))) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || ((pumpRunning == 0 && waterLevel <= 1) && waterLevel <= \old(waterLevel))) || !(\old(waterLevel) <= 2))) && (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2)) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 839]: Loop Invariant Derived loop invariant: (((((((((waterLevel <= 1 && waterLevel <= \old(waterLevel)) && pumpRunning == 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || ((pumpRunning == 0 && waterLevel <= 1) && waterLevel <= \old(waterLevel))) || !(\old(waterLevel) <= 2)) && (((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(methaneLevelCritical == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2)) || (\old(waterLevel) == waterLevel && pumpRunning == 1))) && (((((((pumpRunning == 0 && waterLevel <= 1) && \old(waterLevel) == waterLevel) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2)) || (\old(waterLevel) == waterLevel && pumpRunning == 1))) && (((((((waterLevel <= 1 && waterLevel <= \old(waterLevel)) && pumpRunning == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || ((pumpRunning == 0 && waterLevel <= 1) && waterLevel <= \old(waterLevel))) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2)) - InvariantResult [Line: 909]: Loop Invariant Derived loop invariant: ((((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2)) && (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2))) && (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2))) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2)) || (((\result == 1 && methaneLevelCritical == tmp) && \old(waterLevel) == waterLevel) && pumpRunning == 1)) - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 663]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2)) && ((((((waterLevel <= 1 && waterLevel <= \old(waterLevel)) && pumpRunning == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2))) && (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2))) && ((((((waterLevel <= 1 && waterLevel <= \old(waterLevel)) && pumpRunning == 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 572]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2)) && ((((((waterLevel <= 1 && waterLevel <= \old(waterLevel)) && pumpRunning == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2))) && (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2))) && ((((((waterLevel <= 1 && waterLevel <= \old(waterLevel)) && pumpRunning == 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) - InvariantResult [Line: 719]: Loop Invariant Derived loop invariant: ((((((methaneLevelCritical == 0 && 1 == systemActive) && splverifierCounter == 0) && waterLevel <= 2) && pumpRunning == 1) || ((((1 == systemActive && methaneLevelCritical == 1) && splverifierCounter == 0) && waterLevel <= 2) && pumpRunning == 1)) || ((((pumpRunning == 0 && 1 == systemActive) && methaneLevelCritical == 1) && splverifierCounter == 0) && waterLevel <= 2)) || ((((pumpRunning == 0 && methaneLevelCritical == 0) && waterLevel <= 1) && 1 == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 954]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || ((((pumpRunning == 0 && !(\result == 0)) && 1 <= tmp___0) && \result == 0) && tmp == 0)) || !(methaneLevelCritical == systemActive)) || !(waterLevel <= 2)) || !(methaneLevelCritical == 1)) || (pumpRunning == 0 && waterLevel <= 1)) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(waterLevel <= 1))) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((((pumpRunning == 0 && !(\result == 0)) && 1 <= tmp___0) && \result == 0) && tmp == 0)) || !(methaneLevelCritical == 0)) || !(waterLevel <= 2)) || (pumpRunning == 0 && waterLevel <= 1))) && (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(waterLevel <= 1)) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 640]: Loop Invariant Derived loop invariant: (((((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2)) && (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || \result == 1)) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || \result <= 1)) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (((pumpRunning == 0 && methaneLevelCritical == tmp) && waterLevel <= 1) && \old(waterLevel) == waterLevel)) || !(methaneLevelCritical == 0)) || ((methaneLevelCritical == tmp && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(\old(waterLevel) <= 2))) && (((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || ((((methaneLevelCritical == tmp && waterLevel <= 1) && waterLevel <= \old(waterLevel)) && \result <= 1) && pumpRunning == 1)) || ((((pumpRunning == 0 && methaneLevelCritical == tmp) && waterLevel <= 1) && waterLevel <= \old(waterLevel)) && \result <= 1)) RESULT: Ultimate proved your program to be correct! [2021-12-21 13:15:53,695 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE