./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product53.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 e91d5c860cfea17112af53939b2fffb1e4c536355098377ab18c754994d1bc2b --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 06:20:14,140 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 06:20:14,142 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 06:20:14,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 06:20:14,177 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 06:20:14,177 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 06:20:14,179 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 06:20:14,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 06:20:14,182 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 06:20:14,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 06:20:14,187 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 06:20:14,190 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 06:20:14,191 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 06:20:14,197 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 06:20:14,200 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 06:20:14,203 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 06:20:14,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 06:20:14,206 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 06:20:14,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 06:20:14,211 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 06:20:14,213 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 06:20:14,214 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 06:20:14,214 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 06:20:14,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 06:20:14,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 06:20:14,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 06:20:14,221 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 06:20:14,222 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 06:20:14,223 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 06:20:14,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 06:20:14,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 06:20:14,225 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 06:20:14,227 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 06:20:14,227 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 06:20:14,228 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 06:20:14,229 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 06:20:14,229 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 06:20:14,230 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 06:20:14,230 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 06:20:14,230 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 06:20:14,231 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 06:20:14,232 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 06:20:14,234 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 06:20:14,265 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 06:20:14,268 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 06:20:14,268 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 06:20:14,268 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 06:20:14,269 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 06:20:14,269 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 06:20:14,270 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 06:20:14,270 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 06:20:14,270 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 06:20:14,271 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 06:20:14,271 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 06:20:14,271 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 06:20:14,272 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 06:20:14,272 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 06:20:14,272 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 06:20:14,272 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 06:20:14,273 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 06:20:14,273 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 06:20:14,273 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 06:20:14,273 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 06:20:14,273 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 06:20:14,274 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 06:20:14,274 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 06:20:14,274 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 06:20:14,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 06:20:14,275 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 06:20:14,275 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 06:20:14,275 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 06:20:14,275 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 06:20:14,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 06:20:14,276 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 06:20:14,276 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 06:20:14,276 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 06:20:14,276 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e91d5c860cfea17112af53939b2fffb1e4c536355098377ab18c754994d1bc2b [2022-07-12 06:20:14,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 06:20:14,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 06:20:14,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 06:20:14,550 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 06:20:14,551 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 06:20:14,552 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c [2022-07-12 06:20:14,636 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44882332f/fcbe488561b84268878224e15eb53635/FLAG0439ba39a [2022-07-12 06:20:15,018 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 06:20:15,019 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c [2022-07-12 06:20:15,035 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44882332f/fcbe488561b84268878224e15eb53635/FLAG0439ba39a [2022-07-12 06:20:15,421 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44882332f/fcbe488561b84268878224e15eb53635 [2022-07-12 06:20:15,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 06:20:15,424 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 06:20:15,427 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 06:20:15,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 06:20:15,430 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 06:20:15,431 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 06:20:15" (1/1) ... [2022-07-12 06:20:15,432 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a6ac6c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:20:15, skipping insertion in model container [2022-07-12 06:20:15,432 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 06:20:15" (1/1) ... [2022-07-12 06:20:15,438 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 06:20:15,490 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 06:20:15,746 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c[15987,16000] [2022-07-12 06:20:15,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 06:20:15,768 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 06:20:15,845 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c[15987,16000] [2022-07-12 06:20:15,871 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 06:20:15,893 INFO L208 MainTranslator]: Completed translation [2022-07-12 06:20:15,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:20:15 WrapperNode [2022-07-12 06:20:15,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 06:20:15,896 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 06:20:15,896 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 06:20:15,897 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 06:20:15,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:20:15" (1/1) ... [2022-07-12 06:20:15,925 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:20:15" (1/1) ... [2022-07-12 06:20:15,962 INFO L137 Inliner]: procedures = 56, calls = 158, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 281 [2022-07-12 06:20:15,963 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 06:20:15,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 06:20:15,964 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 06:20:15,964 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 06:20:15,976 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:20:15" (1/1) ... [2022-07-12 06:20:15,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:20:15" (1/1) ... [2022-07-12 06:20:15,989 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:20:15" (1/1) ... [2022-07-12 06:20:15,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:20:15" (1/1) ... [2022-07-12 06:20:16,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:20:15" (1/1) ... [2022-07-12 06:20:16,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:20:15" (1/1) ... [2022-07-12 06:20:16,009 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:20:15" (1/1) ... [2022-07-12 06:20:16,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 06:20:16,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 06:20:16,026 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 06:20:16,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 06:20:16,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:20:15" (1/1) ... [2022-07-12 06:20:16,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 06:20:16,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:20:16,055 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) [2022-07-12 06:20:16,070 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 [2022-07-12 06:20:16,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 06:20:16,100 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-12 06:20:16,100 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-12 06:20:16,100 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-12 06:20:16,100 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-12 06:20:16,100 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-12 06:20:16,100 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-12 06:20:16,101 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-07-12 06:20:16,101 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-07-12 06:20:16,101 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-12 06:20:16,101 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-12 06:20:16,102 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2022-07-12 06:20:16,102 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2022-07-12 06:20:16,102 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-07-12 06:20:16,102 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-07-12 06:20:16,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 06:20:16,102 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-12 06:20:16,103 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-12 06:20:16,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 06:20:16,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 06:20:16,173 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 06:20:16,174 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 06:20:16,489 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 06:20:16,495 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 06:20:16,495 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-12 06:20:16,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:20:16 BoogieIcfgContainer [2022-07-12 06:20:16,498 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 06:20:16,511 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 06:20:16,511 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 06:20:16,514 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 06:20:16,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 06:20:15" (1/3) ... [2022-07-12 06:20:16,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f035b3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 06:20:16, skipping insertion in model container [2022-07-12 06:20:16,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:20:15" (2/3) ... [2022-07-12 06:20:16,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f035b3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 06:20:16, skipping insertion in model container [2022-07-12 06:20:16,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:20:16" (3/3) ... [2022-07-12 06:20:16,520 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product53.cil.c [2022-07-12 06:20:16,531 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 06:20:16,532 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 06:20:16,574 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 06:20:16,581 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7284b06c, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3570e640 [2022-07-12 06:20:16,582 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 06:20:16,589 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 71 states have (on average 1.3943661971830985) internal successors, (99), 81 states have internal predecessors, (99), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 9 states have call predecessors, (14), 14 states have call successors, (14) [2022-07-12 06:20:16,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-12 06:20:16,597 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:20:16,597 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:20:16,598 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:20:16,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:20:16,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1446250138, now seen corresponding path program 1 times [2022-07-12 06:20:16,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:20:16,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314261296] [2022-07-12 06:20:16,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:20:16,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:20:16,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:16,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:20:16,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:20:16,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314261296] [2022-07-12 06:20:16,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314261296] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:20:16,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:20:16,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 06:20:16,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203626990] [2022-07-12 06:20:16,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:20:16,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 06:20:16,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:20:16,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 06:20:16,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 06:20:16,901 INFO L87 Difference]: Start difference. First operand has 95 states, 71 states have (on average 1.3943661971830985) internal successors, (99), 81 states have internal predecessors, (99), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 9 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 06:20:16,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:20:16,952 INFO L93 Difference]: Finished difference Result 182 states and 249 transitions. [2022-07-12 06:20:16,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 06:20:16,954 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-07-12 06:20:16,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:20:16,962 INFO L225 Difference]: With dead ends: 182 [2022-07-12 06:20:16,962 INFO L226 Difference]: Without dead ends: 86 [2022-07-12 06:20:16,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 06:20:16,972 INFO L413 NwaCegarLoop]: 121 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, 121 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 [2022-07-12 06:20:16,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 06:20:16,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-07-12 06:20:17,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2022-07-12 06:20:17,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 64 states have (on average 1.328125) internal successors, (85), 73 states have internal predecessors, (85), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2022-07-12 06:20:17,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 112 transitions. [2022-07-12 06:20:17,022 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 112 transitions. Word has length 19 [2022-07-12 06:20:17,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:20:17,023 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 112 transitions. [2022-07-12 06:20:17,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 06:20:17,024 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 112 transitions. [2022-07-12 06:20:17,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-12 06:20:17,027 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:20:17,027 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:20:17,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 06:20:17,028 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:20:17,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:20:17,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1941246016, now seen corresponding path program 1 times [2022-07-12 06:20:17,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:20:17,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510863112] [2022-07-12 06:20:17,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:20:17,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:20:17,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:17,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:20:17,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:20:17,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510863112] [2022-07-12 06:20:17,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510863112] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:20:17,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:20:17,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 06:20:17,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684794034] [2022-07-12 06:20:17,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:20:17,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 06:20:17,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:20:17,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 06:20:17,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 06:20:17,129 INFO L87 Difference]: Start difference. First operand 86 states and 112 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 06:20:17,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:20:17,154 INFO L93 Difference]: Finished difference Result 138 states and 180 transitions. [2022-07-12 06:20:17,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 06:20:17,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-07-12 06:20:17,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:20:17,159 INFO L225 Difference]: With dead ends: 138 [2022-07-12 06:20:17,160 INFO L226 Difference]: Without dead ends: 77 [2022-07-12 06:20:17,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 06:20:17,162 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 12 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 182 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 [2022-07-12 06:20:17,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 182 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 06:20:17,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-07-12 06:20:17,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-07-12 06:20:17,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 58 states have (on average 1.3448275862068966) internal successors, (78), 67 states have internal predecessors, (78), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 6 states have call predecessors, (11), 11 states have call successors, (11) [2022-07-12 06:20:17,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 100 transitions. [2022-07-12 06:20:17,176 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 100 transitions. Word has length 20 [2022-07-12 06:20:17,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:20:17,176 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 100 transitions. [2022-07-12 06:20:17,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 06:20:17,176 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 100 transitions. [2022-07-12 06:20:17,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-12 06:20:17,177 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:20:17,177 INFO L195 NwaCegarLoop]: 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] [2022-07-12 06:20:17,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 06:20:17,177 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:20:17,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:20:17,178 INFO L85 PathProgramCache]: Analyzing trace with hash 626660710, now seen corresponding path program 1 times [2022-07-12 06:20:17,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:20:17,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793133605] [2022-07-12 06:20:17,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:20:17,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:20:17,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:17,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:20:17,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:20:17,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793133605] [2022-07-12 06:20:17,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793133605] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:20:17,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:20:17,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 06:20:17,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123405597] [2022-07-12 06:20:17,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:20:17,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 06:20:17,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:20:17,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 06:20:17,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 06:20:17,328 INFO L87 Difference]: Start difference. First operand 77 states and 100 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 06:20:17,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:20:17,426 INFO L93 Difference]: Finished difference Result 147 states and 194 transitions. [2022-07-12 06:20:17,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 06:20:17,427 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-07-12 06:20:17,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:20:17,428 INFO L225 Difference]: With dead ends: 147 [2022-07-12 06:20:17,428 INFO L226 Difference]: Without dead ends: 77 [2022-07-12 06:20:17,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 06:20:17,430 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 126 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 06:20:17,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 209 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 06:20:17,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-07-12 06:20:17,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-07-12 06:20:17,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 58 states have (on average 1.3275862068965518) internal successors, (77), 67 states have internal predecessors, (77), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 6 states have call predecessors, (11), 11 states have call successors, (11) [2022-07-12 06:20:17,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 99 transitions. [2022-07-12 06:20:17,438 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 99 transitions. Word has length 24 [2022-07-12 06:20:17,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:20:17,438 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 99 transitions. [2022-07-12 06:20:17,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 06:20:17,439 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 99 transitions. [2022-07-12 06:20:17,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-12 06:20:17,440 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:20:17,440 INFO L195 NwaCegarLoop]: 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] [2022-07-12 06:20:17,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 06:20:17,441 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:20:17,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:20:17,441 INFO L85 PathProgramCache]: Analyzing trace with hash 222843713, now seen corresponding path program 1 times [2022-07-12 06:20:17,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:20:17,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551459558] [2022-07-12 06:20:17,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:20:17,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:20:17,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:17,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 06:20:17,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:17,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:20:17,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:20:17,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551459558] [2022-07-12 06:20:17,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551459558] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:20:17,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:20:17,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 06:20:17,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921997363] [2022-07-12 06:20:17,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:20:17,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 06:20:17,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:20:17,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 06:20:17,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 06:20:17,491 INFO L87 Difference]: Start difference. First operand 77 states and 99 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 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) [2022-07-12 06:20:17,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:20:17,612 INFO L93 Difference]: Finished difference Result 217 states and 282 transitions. [2022-07-12 06:20:17,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 06:20:17,613 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 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 33 [2022-07-12 06:20:17,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:20:17,616 INFO L225 Difference]: With dead ends: 217 [2022-07-12 06:20:17,616 INFO L226 Difference]: Without dead ends: 147 [2022-07-12 06:20:17,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 06:20:17,628 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 137 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 06:20:17,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 208 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 06:20:17,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2022-07-12 06:20:17,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 141. [2022-07-12 06:20:17,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 108 states have (on average 1.287037037037037) internal successors, (139), 116 states have internal predecessors, (139), 14 states have call successors, (14), 13 states have call predecessors, (14), 18 states have return successors, (25), 16 states have call predecessors, (25), 14 states have call successors, (25) [2022-07-12 06:20:17,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 178 transitions. [2022-07-12 06:20:17,646 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 178 transitions. Word has length 33 [2022-07-12 06:20:17,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:20:17,646 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 178 transitions. [2022-07-12 06:20:17,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 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) [2022-07-12 06:20:17,646 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 178 transitions. [2022-07-12 06:20:17,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-12 06:20:17,648 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:20:17,648 INFO L195 NwaCegarLoop]: 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] [2022-07-12 06:20:17,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 06:20:17,648 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:20:17,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:20:17,649 INFO L85 PathProgramCache]: Analyzing trace with hash 569930082, now seen corresponding path program 1 times [2022-07-12 06:20:17,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:20:17,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36819255] [2022-07-12 06:20:17,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:20:17,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:20:17,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:17,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 06:20:17,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:17,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 06:20:17,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:17,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:20:17,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:20:17,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36819255] [2022-07-12 06:20:17,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36819255] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:20:17,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:20:17,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 06:20:17,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182749334] [2022-07-12 06:20:17,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:20:17,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 06:20:17,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:20:17,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 06:20:17,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 06:20:17,712 INFO L87 Difference]: Start difference. First operand 141 states and 178 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-12 06:20:17,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:20:17,847 INFO L93 Difference]: Finished difference Result 283 states and 365 transitions. [2022-07-12 06:20:17,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 06:20:17,847 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2022-07-12 06:20:17,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:20:17,849 INFO L225 Difference]: With dead ends: 283 [2022-07-12 06:20:17,849 INFO L226 Difference]: Without dead ends: 149 [2022-07-12 06:20:17,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-07-12 06:20:17,850 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 68 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 06:20:17,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 394 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 06:20:17,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-07-12 06:20:17,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 144. [2022-07-12 06:20:17,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 111 states have (on average 1.2792792792792793) internal successors, (142), 119 states have internal predecessors, (142), 14 states have call successors, (14), 13 states have call predecessors, (14), 18 states have return successors, (25), 16 states have call predecessors, (25), 14 states have call successors, (25) [2022-07-12 06:20:17,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 181 transitions. [2022-07-12 06:20:17,864 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 181 transitions. Word has length 43 [2022-07-12 06:20:17,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:20:17,864 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 181 transitions. [2022-07-12 06:20:17,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-12 06:20:17,865 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 181 transitions. [2022-07-12 06:20:17,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-12 06:20:17,866 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:20:17,866 INFO L195 NwaCegarLoop]: 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] [2022-07-12 06:20:17,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 06:20:17,866 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:20:17,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:20:17,867 INFO L85 PathProgramCache]: Analyzing trace with hash -451138272, now seen corresponding path program 1 times [2022-07-12 06:20:17,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:20:17,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164912859] [2022-07-12 06:20:17,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:20:17,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:20:17,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:17,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 06:20:17,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:17,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 06:20:17,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:17,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:20:17,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:20:17,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164912859] [2022-07-12 06:20:17,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164912859] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:20:17,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:20:17,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 06:20:17,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328722186] [2022-07-12 06:20:17,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:20:17,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 06:20:17,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:20:17,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 06:20:17,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:20:17,941 INFO L87 Difference]: Start difference. First operand 144 states and 181 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 6 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-12 06:20:18,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:20:18,096 INFO L93 Difference]: Finished difference Result 294 states and 384 transitions. [2022-07-12 06:20:18,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 06:20:18,096 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 6 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2022-07-12 06:20:18,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:20:18,098 INFO L225 Difference]: With dead ends: 294 [2022-07-12 06:20:18,098 INFO L226 Difference]: Without dead ends: 157 [2022-07-12 06:20:18,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-07-12 06:20:18,102 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 109 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 06:20:18,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 440 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 06:20:18,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-07-12 06:20:18,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 146. [2022-07-12 06:20:18,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 113 states have (on average 1.2743362831858407) internal successors, (144), 121 states have internal predecessors, (144), 14 states have call successors, (14), 13 states have call predecessors, (14), 18 states have return successors, (25), 16 states have call predecessors, (25), 14 states have call successors, (25) [2022-07-12 06:20:18,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 183 transitions. [2022-07-12 06:20:18,127 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 183 transitions. Word has length 43 [2022-07-12 06:20:18,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:20:18,129 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 183 transitions. [2022-07-12 06:20:18,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 6 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-12 06:20:18,130 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 183 transitions. [2022-07-12 06:20:18,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-12 06:20:18,137 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:20:18,137 INFO L195 NwaCegarLoop]: 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] [2022-07-12 06:20:18,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 06:20:18,137 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:20:18,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:20:18,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1849684318, now seen corresponding path program 1 times [2022-07-12 06:20:18,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:20:18,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736219537] [2022-07-12 06:20:18,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:20:18,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:20:18,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:18,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 06:20:18,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:18,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 06:20:18,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:18,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:20:18,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:20:18,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736219537] [2022-07-12 06:20:18,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736219537] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:20:18,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:20:18,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 06:20:18,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115390588] [2022-07-12 06:20:18,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:20:18,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 06:20:18,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:20:18,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 06:20:18,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 06:20:18,226 INFO L87 Difference]: Start difference. First operand 146 states and 183 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 06:20:18,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:20:18,391 INFO L93 Difference]: Finished difference Result 407 states and 536 transitions. [2022-07-12 06:20:18,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 06:20:18,392 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 43 [2022-07-12 06:20:18,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:20:18,394 INFO L225 Difference]: With dead ends: 407 [2022-07-12 06:20:18,394 INFO L226 Difference]: Without dead ends: 268 [2022-07-12 06:20:18,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:20:18,395 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 199 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 06:20:18,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 318 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 06:20:18,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2022-07-12 06:20:18,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 260. [2022-07-12 06:20:18,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 199 states have (on average 1.256281407035176) internal successors, (250), 211 states have internal predecessors, (250), 29 states have call successors, (29), 28 states have call predecessors, (29), 31 states have return successors, (55), 30 states have call predecessors, (55), 29 states have call successors, (55) [2022-07-12 06:20:18,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 334 transitions. [2022-07-12 06:20:18,416 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 334 transitions. Word has length 43 [2022-07-12 06:20:18,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:20:18,416 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 334 transitions. [2022-07-12 06:20:18,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 06:20:18,416 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 334 transitions. [2022-07-12 06:20:18,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-12 06:20:18,417 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:20:18,417 INFO L195 NwaCegarLoop]: 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] [2022-07-12 06:20:18,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 06:20:18,417 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:20:18,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:20:18,418 INFO L85 PathProgramCache]: Analyzing trace with hash -784742271, now seen corresponding path program 1 times [2022-07-12 06:20:18,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:20:18,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606632308] [2022-07-12 06:20:18,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:20:18,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:20:18,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:18,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 06:20:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:18,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 06:20:18,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:18,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 06:20:18,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:18,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:20:18,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:20:18,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606632308] [2022-07-12 06:20:18,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606632308] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:20:18,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:20:18,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 06:20:18,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331175742] [2022-07-12 06:20:18,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:20:18,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 06:20:18,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:20:18,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 06:20:18,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 06:20:18,485 INFO L87 Difference]: Start difference. First operand 260 states and 334 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-12 06:20:18,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:20:18,625 INFO L93 Difference]: Finished difference Result 513 states and 660 transitions. [2022-07-12 06:20:18,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 06:20:18,626 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 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 45 [2022-07-12 06:20:18,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:20:18,628 INFO L225 Difference]: With dead ends: 513 [2022-07-12 06:20:18,628 INFO L226 Difference]: Without dead ends: 260 [2022-07-12 06:20:18,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-12 06:20:18,629 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 113 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 06:20:18,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 367 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 06:20:18,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-07-12 06:20:18,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 258. [2022-07-12 06:20:18,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 197 states have (on average 1.248730964467005) internal successors, (246), 209 states have internal predecessors, (246), 29 states have call successors, (29), 28 states have call predecessors, (29), 31 states have return successors, (55), 30 states have call predecessors, (55), 29 states have call successors, (55) [2022-07-12 06:20:18,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 330 transitions. [2022-07-12 06:20:18,645 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 330 transitions. Word has length 45 [2022-07-12 06:20:18,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:20:18,645 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 330 transitions. [2022-07-12 06:20:18,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-12 06:20:18,645 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 330 transitions. [2022-07-12 06:20:18,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-07-12 06:20:18,646 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:20:18,646 INFO L195 NwaCegarLoop]: 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] [2022-07-12 06:20:18,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 06:20:18,647 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:20:18,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:20:18,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1315447288, now seen corresponding path program 1 times [2022-07-12 06:20:18,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:20:18,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518898743] [2022-07-12 06:20:18,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:20:18,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:20:18,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:18,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 06:20:18,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:18,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 06:20:18,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:18,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 06:20:18,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:18,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:20:18,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:20:18,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518898743] [2022-07-12 06:20:18,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518898743] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:20:18,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:20:18,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 06:20:18,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026270558] [2022-07-12 06:20:18,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:20:18,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 06:20:18,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:20:18,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 06:20:18,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:20:18,744 INFO L87 Difference]: Start difference. First operand 258 states and 330 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-12 06:20:19,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:20:19,094 INFO L93 Difference]: Finished difference Result 538 states and 711 transitions. [2022-07-12 06:20:19,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-12 06:20:19,095 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 47 [2022-07-12 06:20:19,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:20:19,097 INFO L225 Difference]: With dead ends: 538 [2022-07-12 06:20:19,097 INFO L226 Difference]: Without dead ends: 332 [2022-07-12 06:20:19,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2022-07-12 06:20:19,099 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 201 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 06:20:19,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 483 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 06:20:19,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2022-07-12 06:20:19,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 297. [2022-07-12 06:20:19,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 228 states have (on average 1.2236842105263157) internal successors, (279), 244 states have internal predecessors, (279), 32 states have call successors, (32), 28 states have call predecessors, (32), 36 states have return successors, (69), 34 states have call predecessors, (69), 32 states have call successors, (69) [2022-07-12 06:20:19,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 380 transitions. [2022-07-12 06:20:19,119 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 380 transitions. Word has length 47 [2022-07-12 06:20:19,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:20:19,119 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 380 transitions. [2022-07-12 06:20:19,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-12 06:20:19,120 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 380 transitions. [2022-07-12 06:20:19,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-12 06:20:19,121 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:20:19,121 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 06:20:19,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 06:20:19,121 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:20:19,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:20:19,122 INFO L85 PathProgramCache]: Analyzing trace with hash -949050969, now seen corresponding path program 1 times [2022-07-12 06:20:19,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:20:19,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428990214] [2022-07-12 06:20:19,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:20:19,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:20:19,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:19,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 06:20:19,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:19,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 06:20:19,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:19,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 06:20:19,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:19,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 06:20:19,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:19,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-12 06:20:19,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:19,204 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-12 06:20:19,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:20:19,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428990214] [2022-07-12 06:20:19,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428990214] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 06:20:19,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043572703] [2022-07-12 06:20:19,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:20:19,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 06:20:19,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:20:19,211 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) [2022-07-12 06:20:19,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-12 06:20:19,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:19,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 06:20:19,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 06:20:19,428 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:20:19,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 06:20:19,566 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:20:19,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1043572703] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 06:20:19,566 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-12 06:20:19,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 13 [2022-07-12 06:20:19,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260928678] [2022-07-12 06:20:19,566 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-12 06:20:19,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 06:20:19,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:20:19,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 06:20:19,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-07-12 06:20:19,568 INFO L87 Difference]: Start difference. First operand 297 states and 380 transitions. Second operand has 13 states, 13 states have (on average 8.76923076923077) internal successors, (114), 10 states have internal predecessors, (114), 5 states have call successors, (13), 7 states have call predecessors, (13), 3 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2022-07-12 06:20:21,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:20:21,821 INFO L93 Difference]: Finished difference Result 1351 states and 1825 transitions. [2022-07-12 06:20:21,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-07-12 06:20:21,822 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.76923076923077) internal successors, (114), 10 states have internal predecessors, (114), 5 states have call successors, (13), 7 states have call predecessors, (13), 3 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) Word has length 75 [2022-07-12 06:20:21,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:20:21,829 INFO L225 Difference]: With dead ends: 1351 [2022-07-12 06:20:21,829 INFO L226 Difference]: Without dead ends: 1061 [2022-07-12 06:20:21,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 182 SyntacticMatches, 4 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4120 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1749, Invalid=9171, Unknown=0, NotChecked=0, Total=10920 [2022-07-12 06:20:21,834 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 868 mSDsluCounter, 974 mSDsCounter, 0 mSdLazyCounter, 1661 mSolverCounterSat, 406 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 874 SdHoareTripleChecker+Valid, 1162 SdHoareTripleChecker+Invalid, 2067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 406 IncrementalHoareTripleChecker+Valid, 1661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-12 06:20:21,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [874 Valid, 1162 Invalid, 2067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [406 Valid, 1661 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-12 06:20:21,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2022-07-12 06:20:21,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 836. [2022-07-12 06:20:21,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 638 states have (on average 1.206896551724138) internal successors, (770), 680 states have internal predecessors, (770), 91 states have call successors, (91), 82 states have call predecessors, (91), 106 states have return successors, (222), 96 states have call predecessors, (222), 91 states have call successors, (222) [2022-07-12 06:20:21,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1083 transitions. [2022-07-12 06:20:21,905 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1083 transitions. Word has length 75 [2022-07-12 06:20:21,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:20:21,906 INFO L495 AbstractCegarLoop]: Abstraction has 836 states and 1083 transitions. [2022-07-12 06:20:21,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.76923076923077) internal successors, (114), 10 states have internal predecessors, (114), 5 states have call successors, (13), 7 states have call predecessors, (13), 3 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2022-07-12 06:20:21,906 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1083 transitions. [2022-07-12 06:20:21,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-07-12 06:20:21,909 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:20:21,909 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:20:21,939 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-12 06:20:22,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-12 06:20:22,133 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:20:22,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:20:22,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1084284902, now seen corresponding path program 1 times [2022-07-12 06:20:22,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:20:22,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135298165] [2022-07-12 06:20:22,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:20:22,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:20:22,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:22,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 06:20:22,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:22,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 06:20:22,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:22,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 06:20:22,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:22,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 06:20:22,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:22,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 06:20:22,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:22,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 06:20:22,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:22,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 06:20:22,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:22,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 06:20:22,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:22,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-12 06:20:22,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:22,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 06:20:22,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:22,246 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-07-12 06:20:22,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:20:22,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135298165] [2022-07-12 06:20:22,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135298165] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 06:20:22,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1234986311] [2022-07-12 06:20:22,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:20:22,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 06:20:22,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:20:22,252 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) [2022-07-12 06:20:22,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-12 06:20:22,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:22,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-12 06:20:22,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 06:20:22,550 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 51 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-12 06:20:22,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 06:20:22,852 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 49 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-12 06:20:22,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1234986311] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 06:20:22,852 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-12 06:20:22,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2022-07-12 06:20:22,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33373936] [2022-07-12 06:20:22,852 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-12 06:20:22,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-12 06:20:22,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:20:22,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-12 06:20:22,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2022-07-12 06:20:22,854 INFO L87 Difference]: Start difference. First operand 836 states and 1083 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 17 states have internal predecessors, (167), 6 states have call successors, (25), 9 states have call predecessors, (25), 7 states have return successors, (23), 7 states have call predecessors, (23), 6 states have call successors, (23) [2022-07-12 06:20:25,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:20:25,514 INFO L93 Difference]: Finished difference Result 2384 states and 3309 transitions. [2022-07-12 06:20:25,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-07-12 06:20:25,514 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 17 states have internal predecessors, (167), 6 states have call successors, (25), 9 states have call predecessors, (25), 7 states have return successors, (23), 7 states have call predecessors, (23), 6 states have call successors, (23) Word has length 121 [2022-07-12 06:20:25,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:20:25,522 INFO L225 Difference]: With dead ends: 2384 [2022-07-12 06:20:25,522 INFO L226 Difference]: Without dead ends: 1647 [2022-07-12 06:20:25,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 284 SyntacticMatches, 1 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1861 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1289, Invalid=5683, Unknown=0, NotChecked=0, Total=6972 [2022-07-12 06:20:25,528 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 1146 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 2478 mSolverCounterSat, 663 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1152 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 3141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 663 IncrementalHoareTripleChecker+Valid, 2478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-12 06:20:25,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1152 Valid, 790 Invalid, 3141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [663 Valid, 2478 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-12 06:20:25,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2022-07-12 06:20:25,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1331. [2022-07-12 06:20:25,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1331 states, 1004 states have (on average 1.198207171314741) internal successors, (1203), 1061 states have internal predecessors, (1203), 152 states have call successors, (152), 142 states have call predecessors, (152), 174 states have return successors, (343), 158 states have call predecessors, (343), 152 states have call successors, (343) [2022-07-12 06:20:25,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1331 states to 1331 states and 1698 transitions. [2022-07-12 06:20:25,606 INFO L78 Accepts]: Start accepts. Automaton has 1331 states and 1698 transitions. Word has length 121 [2022-07-12 06:20:25,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:20:25,607 INFO L495 AbstractCegarLoop]: Abstraction has 1331 states and 1698 transitions. [2022-07-12 06:20:25,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 17 states have internal predecessors, (167), 6 states have call successors, (25), 9 states have call predecessors, (25), 7 states have return successors, (23), 7 states have call predecessors, (23), 6 states have call successors, (23) [2022-07-12 06:20:25,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1331 states and 1698 transitions. [2022-07-12 06:20:25,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-07-12 06:20:25,611 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:20:25,611 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:20:25,639 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-07-12 06:20:25,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-12 06:20:25,840 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:20:25,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:20:25,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1154537432, now seen corresponding path program 1 times [2022-07-12 06:20:25,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:20:25,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535370432] [2022-07-12 06:20:25,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:20:25,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:20:25,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:25,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 06:20:25,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:25,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 06:20:25,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:25,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 06:20:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:25,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 06:20:25,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:25,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 06:20:25,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:25,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 06:20:25,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:25,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 06:20:25,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:25,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 06:20:25,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:25,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 06:20:25,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:25,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 06:20:25,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:25,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 06:20:25,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:25,966 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 43 proven. 6 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-12 06:20:25,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:20:25,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535370432] [2022-07-12 06:20:25,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535370432] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 06:20:25,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460203601] [2022-07-12 06:20:25,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:20:25,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 06:20:25,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:20:25,969 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 06:20:25,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-12 06:20:26,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:20:26,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-12 06:20:26,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 06:20:26,129 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-12 06:20:26,130 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 06:20:26,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460203601] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:20:26,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 06:20:26,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 12 [2022-07-12 06:20:26,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180608132] [2022-07-12 06:20:26,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:20:26,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 06:20:26,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:20:26,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 06:20:26,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-07-12 06:20:26,133 INFO L87 Difference]: Start difference. First operand 1331 states and 1698 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-12 06:20:26,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:20:26,183 INFO L93 Difference]: Finished difference Result 1762 states and 2225 transitions. [2022-07-12 06:20:26,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 06:20:26,184 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 131 [2022-07-12 06:20:26,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:20:26,184 INFO L225 Difference]: With dead ends: 1762 [2022-07-12 06:20:26,185 INFO L226 Difference]: Without dead ends: 0 [2022-07-12 06:20:26,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-07-12 06:20:26,189 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 9 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 06:20:26,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 371 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 06:20:26,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-12 06:20:26,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-12 06:20:26,190 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) [2022-07-12 06:20:26,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-12 06:20:26,190 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 131 [2022-07-12 06:20:26,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:20:26,191 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-12 06:20:26,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-12 06:20:26,191 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-12 06:20:26,191 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-12 06:20:26,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 06:20:26,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-12 06:20:26,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 06:20:26,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-12 06:20:29,575 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 615 622) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0))) [2022-07-12 06:20:29,575 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 615 622) no Hoare annotation was computed. [2022-07-12 06:20:29,575 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 615 622) no Hoare annotation was computed. [2022-07-12 06:20:29,575 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 522 528) no Hoare annotation was computed. [2022-07-12 06:20:29,576 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 522 528) the Hoare annotation is: true [2022-07-12 06:20:29,576 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 792 803) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0))) (and (or (not (= ~waterLevel~0 1)) (not (= ~pumpRunning~0 0)) .cse0 .cse1) (or .cse0 .cse1 (< ~waterLevel~0 2)))) [2022-07-12 06:20:29,576 INFO L899 garLoopResultBuilder]: For program point L796-1(lines 792 803) no Hoare annotation was computed. [2022-07-12 06:20:29,576 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 792 803) no Hoare annotation was computed. [2022-07-12 06:20:29,576 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 896 925) no Hoare annotation was computed. [2022-07-12 06:20:29,576 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 896 925) the Hoare annotation is: true [2022-07-12 06:20:29,576 INFO L902 garLoopResultBuilder]: At program point L921(lines 896 925) the Hoare annotation is: true [2022-07-12 06:20:29,576 INFO L899 garLoopResultBuilder]: For program point L917(line 917) no Hoare annotation was computed. [2022-07-12 06:20:29,576 INFO L899 garLoopResultBuilder]: For program point L910(lines 910 914) no Hoare annotation was computed. [2022-07-12 06:20:29,576 INFO L902 garLoopResultBuilder]: At program point L910-1(lines 910 914) the Hoare annotation is: true [2022-07-12 06:20:29,576 INFO L899 garLoopResultBuilder]: For program point L907(line 907) no Hoare annotation was computed. [2022-07-12 06:20:29,576 INFO L902 garLoopResultBuilder]: At program point L906-2(lines 906 920) the Hoare annotation is: true [2022-07-12 06:20:29,576 INFO L902 garLoopResultBuilder]: At program point L902(line 902) the Hoare annotation is: true [2022-07-12 06:20:29,577 INFO L899 garLoopResultBuilder]: For program point L902-1(line 902) no Hoare annotation was computed. [2022-07-12 06:20:29,577 INFO L895 garLoopResultBuilder]: At program point L601(line 601) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse0 (= ~pumpRunning~0 0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (and .cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse1 (not (<= 1 |old(~waterLevel~0)|))) (or .cse1 (< |old(~waterLevel~0)| 2) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0)))) [2022-07-12 06:20:29,577 INFO L895 garLoopResultBuilder]: At program point L601-1(lines 582 606) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= ~pumpRunning~0 0)) (.cse1 (not (= 1 ~systemActive~0))) (.cse5 (<= 2 ~waterLevel~0)) (.cse4 (< |old(~waterLevel~0)| 2))) (and (or .cse0 .cse1 (not (<= 1 |old(~waterLevel~0)|)) (= |old(~waterLevel~0)| ~waterLevel~0)) (or .cse0 .cse2 (not (= |old(~waterLevel~0)| 1)) .cse1) (let ((.cse3 (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))) (or (and .cse2 .cse3) .cse1 .cse4 (and .cse5 .cse3))) (or (and (= |timeShift_processEnvironment_~tmp~6#1| 0) (= |timeShift_isMethaneAlarm_#res#1| 0) (= |timeShift_isMethaneLevelCritical_#res#1| 0)) .cse1 .cse5 .cse4 (not (= ~methaneLevelCritical~0 0))))) [2022-07-12 06:20:29,577 INFO L895 garLoopResultBuilder]: At program point L630(lines 623 633) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (< |old(~waterLevel~0)| 2))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) (and (= |timeShift_isMethaneAlarm_#res#1| 0) (= |timeShift_isMethaneLevelCritical_#res#1| 0))) (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))))) [2022-07-12 06:20:29,577 INFO L899 garLoopResultBuilder]: For program point L502-1(lines 501 520) no Hoare annotation was computed. [2022-07-12 06:20:29,578 INFO L895 garLoopResultBuilder]: At program point L841(lines 836 844) the Hoare annotation is: (let ((.cse4 (<= 2 ~waterLevel~0)) (.cse3 (<= 2 |timeShift_getWaterLevel_#res#1|)) (.cse2 (< |old(~waterLevel~0)| 2)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse6 (= ~pumpRunning~0 0))) (and (or .cse0 .cse1 .cse2 (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse3)) (or (and (= |timeShift_processEnvironment_~tmp~6#1| 0) (= |timeShift_isMethaneAlarm_#res#1| 0) (= |timeShift_isMethaneLevelCritical_#res#1| 0)) .cse1 (and .cse4 .cse3) .cse2 (not (= ~methaneLevelCritical~0 0))) (let ((.cse5 (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))) (or (and .cse4 .cse5 .cse3) .cse1 .cse2 (and .cse6 .cse5 (<= 1 |timeShift_getWaterLevel_#res#1|)))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and .cse6 (= ~waterLevel~0 1) (= |timeShift_getWaterLevel_#res#1| 1))))) [2022-07-12 06:20:29,578 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 498 521) no Hoare annotation was computed. [2022-07-12 06:20:29,578 INFO L895 garLoopResultBuilder]: At program point L639(lines 634 642) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (< |old(~waterLevel~0)| 2)))) [2022-07-12 06:20:29,578 INFO L899 garLoopResultBuilder]: For program point L590(lines 590 598) no Hoare annotation was computed. [2022-07-12 06:20:29,578 INFO L899 garLoopResultBuilder]: For program point L586(lines 586 603) no Hoare annotation was computed. [2022-07-12 06:20:29,578 INFO L895 garLoopResultBuilder]: At program point L809(lines 804 812) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (< |old(~waterLevel~0)| 2))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) (= |timeShift_isMethaneLevelCritical_#res#1| 0)) (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))))) [2022-07-12 06:20:29,578 INFO L899 garLoopResultBuilder]: For program point L772(lines 772 776) no Hoare annotation was computed. [2022-07-12 06:20:29,579 INFO L895 garLoopResultBuilder]: At program point L772-2(lines 768 779) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (< |old(~waterLevel~0)| 2) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))))) [2022-07-12 06:20:29,579 INFO L899 garLoopResultBuilder]: For program point L760(line 760) no Hoare annotation was computed. [2022-07-12 06:20:29,579 INFO L899 garLoopResultBuilder]: For program point L509-1(lines 509 515) no Hoare annotation was computed. [2022-07-12 06:20:29,579 INFO L895 garLoopResultBuilder]: At program point L761(lines 756 763) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (< |old(~waterLevel~0)| 2)))) [2022-07-12 06:20:29,579 INFO L895 garLoopResultBuilder]: At program point L596(line 596) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (< |old(~waterLevel~0)| 2))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) (and (= |timeShift_isMethaneAlarm_#res#1| 0) (= |timeShift_isMethaneLevelCritical_#res#1| 0))) (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_processEnvironment_~tmp~6#1| 0) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) .cse1))) [2022-07-12 06:20:29,579 INFO L899 garLoopResultBuilder]: For program point L881(lines 881 887) no Hoare annotation was computed. [2022-07-12 06:20:29,579 INFO L895 garLoopResultBuilder]: At program point L592(line 592) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (< |old(~waterLevel~0)| 2))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))))) [2022-07-12 06:20:29,579 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 498 521) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse0 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) .cse0) .cse1 (not (<= 1 |old(~waterLevel~0)|))) (or .cse1 (< |old(~waterLevel~0)| 2) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0)))) [2022-07-12 06:20:29,579 INFO L899 garLoopResultBuilder]: For program point L877(lines 877 890) no Hoare annotation was computed. [2022-07-12 06:20:29,579 INFO L895 garLoopResultBuilder]: At program point L877-1(lines 869 893) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (= ~pumpRunning~0 0)) (.cse3 (not (= 1 ~systemActive~0))) (.cse4 (< |old(~waterLevel~0)| 2)) (.cse1 (<= 2 |timeShift_getWaterLevel_#res#1|)) (.cse2 (<= 2 |timeShift___utac_acc__Specification4_spec__1_~tmp~9#1|))) (and (or .cse0 (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse1 .cse2) .cse3 .cse4) (let ((.cse5 (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))) (or (and (<= 2 ~waterLevel~0) .cse5 .cse1 .cse2) .cse3 (and .cse6 (<= 1 |timeShift___utac_acc__Specification4_spec__1_~tmp~9#1|) .cse5 (<= 1 |timeShift_getWaterLevel_#res#1|)) .cse4)) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse3 (and (= |timeShift___utac_acc__Specification4_spec__1_~tmp~9#1| 1) .cse6 (= ~waterLevel~0 1) (= |timeShift_getWaterLevel_#res#1| 1))) (or (and (= |timeShift_processEnvironment_~tmp~6#1| 0) (= |timeShift_isMethaneAlarm_#res#1| 0) (= |timeShift_isMethaneLevelCritical_#res#1| 0)) .cse3 .cse4 (and (not (< ~waterLevel~0 2)) .cse1 .cse2) (not (= ~methaneLevelCritical~0 0))))) [2022-07-12 06:20:29,579 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 498 521) no Hoare annotation was computed. [2022-07-12 06:20:29,579 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 760) no Hoare annotation was computed. [2022-07-12 06:20:29,580 INFO L895 garLoopResultBuilder]: At program point L473(lines 430 475) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~10#1| 1))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3))) [2022-07-12 06:20:29,580 INFO L899 garLoopResultBuilder]: For program point L440(lines 440 446) no Hoare annotation was computed. [2022-07-12 06:20:29,580 INFO L899 garLoopResultBuilder]: For program point L440-1(lines 440 446) no Hoare annotation was computed. [2022-07-12 06:20:29,580 INFO L899 garLoopResultBuilder]: For program point L977(lines 977 984) no Hoare annotation was computed. [2022-07-12 06:20:29,580 INFO L899 garLoopResultBuilder]: For program point L432(lines 432 436) no Hoare annotation was computed. [2022-07-12 06:20:29,580 INFO L899 garLoopResultBuilder]: For program point L977-2(lines 977 984) no Hoare annotation was computed. [2022-07-12 06:20:29,580 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-12 06:20:29,580 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-12 06:20:29,580 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-12 06:20:29,580 INFO L902 garLoopResultBuilder]: At program point L986(lines 967 989) the Hoare annotation is: true [2022-07-12 06:20:29,580 INFO L899 garLoopResultBuilder]: For program point L466(lines 466 470) no Hoare annotation was computed. [2022-07-12 06:20:29,580 INFO L895 garLoopResultBuilder]: At program point L466-2(lines 460 471) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~10#1| 1))) (or (and (not (< ~waterLevel~0 2)) .cse0 .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3))) [2022-07-12 06:20:29,580 INFO L895 garLoopResultBuilder]: At program point L751(lines 746 754) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1)) [2022-07-12 06:20:29,580 INFO L895 garLoopResultBuilder]: At program point L743(lines 739 745) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-07-12 06:20:29,581 INFO L899 garLoopResultBuilder]: For program point L450(lines 450 456) no Hoare annotation was computed. [2022-07-12 06:20:29,581 INFO L899 garLoopResultBuilder]: For program point L450-1(lines 450 456) no Hoare annotation was computed. [2022-07-12 06:20:29,581 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-12 06:20:29,581 INFO L902 garLoopResultBuilder]: At program point L479(lines 420 483) the Hoare annotation is: true [2022-07-12 06:20:29,581 INFO L895 garLoopResultBuilder]: At program point L954(lines 950 956) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1) (= |ULTIMATE.start_main_~tmp~10#1| 1)) [2022-07-12 06:20:29,581 INFO L895 garLoopResultBuilder]: At program point L442(line 442) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~10#1| 1))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3))) [2022-07-12 06:20:29,581 INFO L895 garLoopResultBuilder]: At program point L736(lines 732 738) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-07-12 06:20:29,582 INFO L895 garLoopResultBuilder]: At program point L476(lines 429 477) the Hoare annotation is: false [2022-07-12 06:20:29,582 INFO L899 garLoopResultBuilder]: For program point L431(lines 430 475) no Hoare annotation was computed. [2022-07-12 06:20:29,582 INFO L899 garLoopResultBuilder]: For program point L460(lines 460 471) no Hoare annotation was computed. [2022-07-12 06:20:29,582 INFO L895 garLoopResultBuilder]: At program point L452(line 452) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~10#1| 1))) (or (and (not (< ~waterLevel~0 2)) .cse0 .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3))) [2022-07-12 06:20:29,582 INFO L902 garLoopResultBuilder]: At program point L964(lines 957 966) the Hoare annotation is: true [2022-07-12 06:20:29,582 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 530 554) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0))) [2022-07-12 06:20:29,582 INFO L895 garLoopResultBuilder]: At program point L694(lines 679 697) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0)) (and (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~7#1| 0)) .cse0 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~1#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0)) (and .cse0 (<= 2 ~waterLevel~0)))) [2022-07-12 06:20:29,583 INFO L899 garLoopResultBuilder]: For program point L849(lines 849 855) no Hoare annotation was computed. [2022-07-12 06:20:29,583 INFO L899 garLoopResultBuilder]: For program point L688(lines 688 692) no Hoare annotation was computed. [2022-07-12 06:20:29,583 INFO L899 garLoopResultBuilder]: For program point L688-2(lines 688 692) no Hoare annotation was computed. [2022-07-12 06:20:29,583 INFO L895 garLoopResultBuilder]: At program point L612(lines 607 614) the Hoare annotation is: (or (not (= ~waterLevel~0 1)) (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2022-07-12 06:20:29,583 INFO L895 garLoopResultBuilder]: At program point L544(line 544) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |processEnvironment__wrappee__highWaterSensor_~tmp~4#1| 0))) [2022-07-12 06:20:29,583 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 530 554) no Hoare annotation was computed. [2022-07-12 06:20:29,583 INFO L899 garLoopResultBuilder]: For program point L538(lines 538 546) no Hoare annotation was computed. [2022-07-12 06:20:29,583 INFO L899 garLoopResultBuilder]: For program point L534(lines 534 551) no Hoare annotation was computed. [2022-07-12 06:20:29,584 INFO L895 garLoopResultBuilder]: At program point L854(lines 845 858) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 .cse1 .cse2 (< ~waterLevel~0 2)) (or (not (= ~waterLevel~0 1)) .cse0 .cse2 (and .cse1 (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0)))))) [2022-07-12 06:20:29,584 INFO L895 garLoopResultBuilder]: At program point L549(line 549) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0))) [2022-07-12 06:20:29,595 INFO L899 garLoopResultBuilder]: For program point L549-1(lines 530 554) no Hoare annotation was computed. [2022-07-12 06:20:29,595 INFO L899 garLoopResultBuilder]: For program point L784-1(lines 780 791) no Hoare annotation was computed. [2022-07-12 06:20:29,596 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 780 791) no Hoare annotation was computed. [2022-07-12 06:20:29,596 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 780 791) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (not (= ~pumpRunning~0 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|)) .cse1) (or .cse0 .cse1 (not (<= 2 |old(~waterLevel~0)|))))) [2022-07-12 06:20:29,596 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 556 580) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0))) [2022-07-12 06:20:29,596 INFO L895 garLoopResultBuilder]: At program point L570(line 570) the Hoare annotation is: (or (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0))) [2022-07-12 06:20:29,596 INFO L895 garLoopResultBuilder]: At program point L566(line 566) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 1 ~waterLevel~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_~tmp~8#1| 0) (<= 1 |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_#res#1|) (<= 1 |processEnvironment__wrappee__lowWaterSensor_~tmp~5#1|) (<= 1 |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_~tmp___0~2#1|) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterSensorDry_#res#1| 0))))) [2022-07-12 06:20:29,596 INFO L899 garLoopResultBuilder]: For program point L564(lines 564 572) no Hoare annotation was computed. [2022-07-12 06:20:29,597 INFO L899 garLoopResultBuilder]: For program point L560(lines 560 577) no Hoare annotation was computed. [2022-07-12 06:20:29,597 INFO L895 garLoopResultBuilder]: At program point L713(lines 698 716) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 1 ~waterLevel~0)))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_~tmp~8#1| 0) (<= 1 |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_#res#1|) (<= 1 |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_~tmp___0~2#1|) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterSensorDry_#res#1| 0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2022-07-12 06:20:29,597 INFO L899 garLoopResultBuilder]: For program point L707(lines 707 711) no Hoare annotation was computed. [2022-07-12 06:20:29,597 INFO L899 garLoopResultBuilder]: For program point L707-2(lines 707 711) no Hoare annotation was computed. [2022-07-12 06:20:29,597 INFO L895 garLoopResultBuilder]: At program point L864(lines 859 867) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 1 ~waterLevel~0)))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterSensorDry_#res#1| 0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2022-07-12 06:20:29,597 INFO L895 garLoopResultBuilder]: At program point L575(line 575) the Hoare annotation is: (or (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0))) [2022-07-12 06:20:29,597 INFO L899 garLoopResultBuilder]: For program point L575-1(lines 556 580) no Hoare annotation was computed. [2022-07-12 06:20:29,598 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 556 580) no Hoare annotation was computed. [2022-07-12 06:20:29,600 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:20:29,602 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 06:20:29,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 06:20:29 BoogieIcfgContainer [2022-07-12 06:20:29,623 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 06:20:29,624 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 06:20:29,624 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 06:20:29,624 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 06:20:29,625 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:20:16" (3/4) ... [2022-07-12 06:20:29,627 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-12 06:20:29,632 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-07-12 06:20:29,632 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-07-12 06:20:29,632 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-07-12 06:20:29,633 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-07-12 06:20:29,633 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-07-12 06:20:29,633 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-07-12 06:20:29,633 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-07-12 06:20:29,633 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2022-07-12 06:20:29,640 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 55 nodes and edges [2022-07-12 06:20:29,640 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-07-12 06:20:29,641 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-12 06:20:29,641 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-12 06:20:29,642 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-12 06:20:29,642 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-12 06:20:29,642 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-12 06:20:29,664 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive) && waterLevel == 1 [2022-07-12 06:20:29,664 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive) && waterLevel == 1) && tmp == 1 [2022-07-12 06:20:29,665 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((2 <= waterLevel && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && tmp == 1) || (((((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) [2022-07-12 06:20:29,666 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || \old(waterLevel) < 2) || (pumpRunning == \old(pumpRunning) && \old(waterLevel) <= waterLevel + 1)) [2022-07-12 06:20:29,667 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || \old(waterLevel) == waterLevel) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && ((((pumpRunning == 0 && \old(waterLevel) <= waterLevel + 1) || !(1 == systemActive)) || \old(waterLevel) < 2) || (2 <= waterLevel && \old(waterLevel) <= waterLevel + 1))) && ((((((tmp == 0 && \result == 0) && \result == 0) || !(1 == systemActive)) || 2 <= waterLevel) || \old(waterLevel) < 2) || !(methaneLevelCritical == 0)) [2022-07-12 06:20:29,669 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || \old(waterLevel) < 2) || (\old(waterLevel) == waterLevel && 2 <= \result)) && ((((((tmp == 0 && \result == 0) && \result == 0) || !(1 == systemActive)) || (2 <= waterLevel && 2 <= \result)) || \old(waterLevel) < 2) || !(methaneLevelCritical == 0))) && (((((2 <= waterLevel && \old(waterLevel) <= waterLevel + 1) && 2 <= \result) || !(1 == systemActive)) || \old(waterLevel) < 2) || ((pumpRunning == 0 && \old(waterLevel) <= waterLevel + 1) && 1 <= \result))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((pumpRunning == 0 && waterLevel == 1) && \result == 1)) [2022-07-12 06:20:29,669 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (((!(1 == systemActive) || \old(waterLevel) < 2) || !(methaneLevelCritical == 0)) || \result == 0)) && ((!(1 == systemActive) || \old(waterLevel) < 2) || (pumpRunning == \old(pumpRunning) && \old(waterLevel) <= waterLevel + 1)) [2022-07-12 06:20:29,669 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || ((\old(waterLevel) == waterLevel && 2 <= \result) && 2 <= tmp)) || !(1 == systemActive)) || \old(waterLevel) < 2) && ((((((2 <= waterLevel && \old(waterLevel) <= waterLevel + 1) && 2 <= \result) && 2 <= tmp) || !(1 == systemActive)) || (((pumpRunning == 0 && 1 <= tmp) && \old(waterLevel) <= waterLevel + 1) && 1 <= \result)) || \old(waterLevel) < 2)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (((tmp == 1 && pumpRunning == 0) && waterLevel == 1) && \result == 1))) && ((((((tmp == 0 && \result == 0) && \result == 0) || !(1 == systemActive)) || \old(waterLevel) < 2) || ((!(waterLevel < 2) && 2 <= \result) && 2 <= tmp)) || !(methaneLevelCritical == 0)) [2022-07-12 06:20:29,669 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (((!(1 == systemActive) || \old(waterLevel) < 2) || !(methaneLevelCritical == 0)) || (\result == 0 && \result == 0))) && ((!(1 == systemActive) || \old(waterLevel) < 2) || (pumpRunning == \old(pumpRunning) && \old(waterLevel) <= waterLevel + 1)) [2022-07-12 06:20:29,669 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || !(1 <= waterLevel)) || (pumpRunning == \old(pumpRunning) && \result == 0)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) [2022-07-12 06:20:29,670 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (!(1 == systemActive) || \old(waterLevel) < 2) [2022-07-12 06:20:29,670 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || waterLevel < 2) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && !(\result == 0))) [2022-07-12 06:20:29,670 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || !(1 <= waterLevel)) || ((((pumpRunning == \old(pumpRunning) && tmp == 0) && 1 <= \result) && 1 <= tmp___0) && \result == 0)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) [2022-07-12 06:20:29,671 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (!(1 == systemActive) || \old(waterLevel) < 2) [2022-07-12 06:20:29,671 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || (((!(tmp == 0) && pumpRunning == 0) && tmp___0 == 0) && \result == 0)) || (pumpRunning == 0 && 2 <= waterLevel) [2022-07-12 06:20:29,673 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive) [2022-07-12 06:20:29,707 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-12 06:20:29,708 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 06:20:29,708 INFO L158 Benchmark]: Toolchain (without parser) took 14283.87ms. Allocated memory was 104.9MB in the beginning and 182.5MB in the end (delta: 77.6MB). Free memory was 74.3MB in the beginning and 146.5MB in the end (delta: -72.2MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2022-07-12 06:20:29,708 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 104.9MB. Free memory was 59.2MB in the beginning and 59.1MB in the end (delta: 86.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 06:20:29,708 INFO L158 Benchmark]: CACSL2BoogieTranslator took 468.07ms. Allocated memory is still 104.9MB. Free memory was 74.0MB in the beginning and 71.6MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-12 06:20:29,709 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.95ms. Allocated memory is still 104.9MB. Free memory was 71.6MB in the beginning and 69.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 06:20:29,709 INFO L158 Benchmark]: Boogie Preprocessor took 61.01ms. Allocated memory is still 104.9MB. Free memory was 69.2MB in the beginning and 67.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 06:20:29,709 INFO L158 Benchmark]: RCFGBuilder took 472.14ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 67.4MB in the beginning and 100.4MB in the end (delta: -33.0MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2022-07-12 06:20:29,709 INFO L158 Benchmark]: TraceAbstraction took 13112.81ms. Allocated memory was 125.8MB in the beginning and 182.5MB in the end (delta: 56.6MB). Free memory was 100.7MB in the beginning and 152.7MB in the end (delta: -52.0MB). Peak memory consumption was 113.2MB. Max. memory is 16.1GB. [2022-07-12 06:20:29,710 INFO L158 Benchmark]: Witness Printer took 83.67ms. Allocated memory is still 182.5MB. Free memory was 152.7MB in the beginning and 146.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-12 06:20:29,711 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 104.9MB. Free memory was 59.2MB in the beginning and 59.1MB in the end (delta: 86.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 468.07ms. Allocated memory is still 104.9MB. Free memory was 74.0MB in the beginning and 71.6MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.95ms. Allocated memory is still 104.9MB. Free memory was 71.6MB in the beginning and 69.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.01ms. Allocated memory is still 104.9MB. Free memory was 69.2MB in the beginning and 67.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 472.14ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 67.4MB in the beginning and 100.4MB in the end (delta: -33.0MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. * TraceAbstraction took 13112.81ms. Allocated memory was 125.8MB in the beginning and 182.5MB in the end (delta: 56.6MB). Free memory was 100.7MB in the beginning and 152.7MB in the end (delta: -52.0MB). Peak memory consumption was 113.2MB. Max. memory is 16.1GB. * Witness Printer took 83.67ms. Allocated memory is still 182.5MB. Free memory was 152.7MB in the beginning and 146.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 760]: 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 9 procedures, 95 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.0s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3017 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2988 mSDsluCounter, 5045 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3534 mSDsCounter, 1323 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5213 IncrementalHoareTripleChecker+Invalid, 6536 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1323 mSolverCounterUnsat, 1511 mSDtfsCounter, 5213 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 933 GetRequests, 671 SyntacticMatches, 9 SemanticMatches, 253 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6063 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1331occurred in iteration=11, InterpolantAutomatonStates: 237, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 608 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 45 LocationsWithAnnotation, 1916 PreInvPairs, 2121 NumberOfFragments, 1214 HoareAnnotationTreeSize, 1916 FomulaSimplifications, 2463 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 45 FomulaSimplificationsInter, 16749 FormulaSimplificationTreeSizeReductionInter, 2.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 971 NumberOfCodeBlocks, 971 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1150 ConstructedInterpolants, 0 QuantifiedInterpolants, 2195 SizeOfPredicates, 10 NumberOfNonLiveVariables, 1517 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 17 InterpolantComputations, 10 PerfectInterpolantSequences, 381/420 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: 634]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (!(1 == systemActive) || \old(waterLevel) < 2) - InvariantResult [Line: 859]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || !(1 <= waterLevel)) || (pumpRunning == \old(pumpRunning) && \result == 0)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || \old(waterLevel) == waterLevel) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && ((((pumpRunning == 0 && \old(waterLevel) <= waterLevel + 1) || !(1 == systemActive)) || \old(waterLevel) < 2) || (2 <= waterLevel && \old(waterLevel) <= waterLevel + 1))) && ((((((tmp == 0 && \result == 0) && \result == 0) || !(1 == systemActive)) || 2 <= waterLevel) || \old(waterLevel) < 2) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 906]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 732]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 896]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 869]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || ((\old(waterLevel) == waterLevel && 2 <= \result) && 2 <= tmp)) || !(1 == systemActive)) || \old(waterLevel) < 2) && ((((((2 <= waterLevel && \old(waterLevel) <= waterLevel + 1) && 2 <= \result) && 2 <= tmp) || !(1 == systemActive)) || (((pumpRunning == 0 && 1 <= tmp) && \old(waterLevel) <= waterLevel + 1) && 1 <= \result)) || \old(waterLevel) < 2)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (((tmp == 1 && pumpRunning == 0) && waterLevel == 1) && \result == 1))) && ((((((tmp == 0 && \result == 0) && \result == 0) || !(1 == systemActive)) || \old(waterLevel) < 2) || ((!(waterLevel < 2) && 2 <= \result) && 2 <= tmp)) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 746]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive) && waterLevel == 1 - InvariantResult [Line: 957]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 804]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (((!(1 == systemActive) || \old(waterLevel) < 2) || !(methaneLevelCritical == 0)) || \result == 0)) && ((!(1 == systemActive) || \old(waterLevel) < 2) || (pumpRunning == \old(pumpRunning) && \old(waterLevel) <= waterLevel + 1)) - InvariantResult [Line: 430]: Loop Invariant Derived loop invariant: ((((2 <= waterLevel && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && tmp == 1) || (((((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) - InvariantResult [Line: 623]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (((!(1 == systemActive) || \old(waterLevel) < 2) || !(methaneLevelCritical == 0)) || (\result == 0 && \result == 0))) && ((!(1 == systemActive) || \old(waterLevel) < 2) || (pumpRunning == \old(pumpRunning) && \old(waterLevel) <= waterLevel + 1)) - InvariantResult [Line: 739]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 429]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 950]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive) && waterLevel == 1) && tmp == 1 - InvariantResult [Line: 967]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 698]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || !(1 <= waterLevel)) || ((((pumpRunning == \old(pumpRunning) && tmp == 0) && 1 <= \result) && 1 <= tmp___0) && \result == 0)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) - InvariantResult [Line: 679]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || (((!(tmp == 0) && pumpRunning == 0) && tmp___0 == 0) && \result == 0)) || (pumpRunning == 0 && 2 <= waterLevel) - InvariantResult [Line: 768]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || \old(waterLevel) < 2) || (pumpRunning == \old(pumpRunning) && \old(waterLevel) <= waterLevel + 1)) - InvariantResult [Line: 607]: Loop Invariant Derived loop invariant: (!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive) - InvariantResult [Line: 845]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || waterLevel < 2) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && !(\result == 0))) - InvariantResult [Line: 836]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || \old(waterLevel) < 2) || (\old(waterLevel) == waterLevel && 2 <= \result)) && ((((((tmp == 0 && \result == 0) && \result == 0) || !(1 == systemActive)) || (2 <= waterLevel && 2 <= \result)) || \old(waterLevel) < 2) || !(methaneLevelCritical == 0))) && (((((2 <= waterLevel && \old(waterLevel) <= waterLevel + 1) && 2 <= \result) || !(1 == systemActive)) || \old(waterLevel) < 2) || ((pumpRunning == 0 && \old(waterLevel) <= waterLevel + 1) && 1 <= \result))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((pumpRunning == 0 && waterLevel == 1) && \result == 1)) - InvariantResult [Line: 756]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (!(1 == systemActive) || \old(waterLevel) < 2) - InvariantResult [Line: 420]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-07-12 06:20:29,775 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE