./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product57.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product57.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 d0f26fc8ab0bdaf05de905c05e583bc491c727ef99c3d3df87bba160b541b55a --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 13:14:15,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 13:14:15,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 13:14:15,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 13:14:15,193 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 13:14:15,196 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 13:14:15,197 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 13:14:15,198 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 13:14:15,199 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 13:14:15,199 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 13:14:15,200 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 13:14:15,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 13:14:15,201 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 13:14:15,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 13:14:15,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 13:14:15,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 13:14:15,203 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 13:14:15,203 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 13:14:15,204 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 13:14:15,205 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 13:14:15,206 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 13:14:15,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 13:14:15,220 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 13:14:15,221 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 13:14:15,222 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 13:14:15,223 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 13:14:15,223 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 13:14:15,223 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 13:14:15,224 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 13:14:15,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 13:14:15,226 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 13:14:15,227 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 13:14:15,228 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 13:14:15,228 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 13:14:15,229 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 13:14:15,230 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 13:14:15,230 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 13:14:15,231 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 13:14:15,231 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 13:14:15,231 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 13:14:15,232 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 13:14:15,233 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 13:14:15,258 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 13:14:15,258 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 13:14:15,258 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 13:14:15,258 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 13:14:15,259 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 13:14:15,260 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 13:14:15,260 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 13:14:15,260 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 13:14:15,260 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 13:14:15,260 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 13:14:15,261 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 13:14:15,261 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 13:14:15,261 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 13:14:15,262 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 13:14:15,262 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 13:14:15,262 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 13:14:15,262 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 13:14:15,262 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 13:14:15,262 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 13:14:15,262 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 13:14:15,263 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 13:14:15,263 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 13:14:15,263 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 13:14:15,263 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 13:14:15,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 13:14:15,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 13:14:15,263 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 13:14:15,264 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 13:14:15,265 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 13:14:15,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 13:14:15,265 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 13:14:15,265 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 13:14:15,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 13:14:15,265 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 13:14:15,266 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d0f26fc8ab0bdaf05de905c05e583bc491c727ef99c3d3df87bba160b541b55a [2021-12-21 13:14:15,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 13:14:15,474 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 13:14:15,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 13:14:15,476 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 13:14:15,477 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 13:14:15,478 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product57.cil.c [2021-12-21 13:14:15,533 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4147dc964/8fb23c2206a34f90bd946aee01e8ed24/FLAGf213dfaac [2021-12-21 13:14:15,946 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 13:14:15,948 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product57.cil.c [2021-12-21 13:14:15,957 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4147dc964/8fb23c2206a34f90bd946aee01e8ed24/FLAGf213dfaac [2021-12-21 13:14:15,966 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4147dc964/8fb23c2206a34f90bd946aee01e8ed24 [2021-12-21 13:14:15,968 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 13:14:15,969 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 13:14:15,970 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 13:14:15,970 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 13:14:15,972 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 13:14:15,972 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:14:15" (1/1) ... [2021-12-21 13:14:15,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@546f89e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:15, skipping insertion in model container [2021-12-21 13:14:15,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:14:15" (1/1) ... [2021-12-21 13:14:15,980 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 13:14:16,000 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 13:14:16,206 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_spec1_product57.cil.c[18661,18674] [2021-12-21 13:14:16,208 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 13:14:16,213 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 13:14:16,279 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_spec1_product57.cil.c[18661,18674] [2021-12-21 13:14:16,280 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 13:14:16,291 INFO L208 MainTranslator]: Completed translation [2021-12-21 13:14:16,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:16 WrapperNode [2021-12-21 13:14:16,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 13:14:16,292 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 13:14:16,292 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 13:14:16,292 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 13:14:16,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:16" (1/1) ... [2021-12-21 13:14:16,316 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:16" (1/1) ... [2021-12-21 13:14:16,346 INFO L137 Inliner]: procedures = 56, calls = 156, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 268 [2021-12-21 13:14:16,347 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 13:14:16,348 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 13:14:16,349 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 13:14:16,349 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 13:14:16,354 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:16" (1/1) ... [2021-12-21 13:14:16,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:16" (1/1) ... [2021-12-21 13:14:16,364 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:16" (1/1) ... [2021-12-21 13:14:16,364 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:16" (1/1) ... [2021-12-21 13:14:16,372 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:16" (1/1) ... [2021-12-21 13:14:16,379 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:16" (1/1) ... [2021-12-21 13:14:16,381 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:16" (1/1) ... [2021-12-21 13:14:16,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 13:14:16,386 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 13:14:16,386 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 13:14:16,387 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 13:14:16,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:16" (1/1) ... [2021-12-21 13:14:16,392 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 13:14:16,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 13:14:16,413 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 13:14:16,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 13:14:16,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 13:14:16,437 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-21 13:14:16,437 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-21 13:14:16,437 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-21 13:14:16,437 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-21 13:14:16,438 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-21 13:14:16,438 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-21 13:14:16,438 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-12-21 13:14:16,438 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-12-21 13:14:16,438 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-12-21 13:14:16,438 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-12-21 13:14:16,438 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-21 13:14:16,438 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-21 13:14:16,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 13:14:16,443 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-21 13:14:16,443 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-21 13:14:16,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 13:14:16,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 13:14:16,490 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 13:14:16,491 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 13:14:16,776 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 13:14:16,781 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 13:14:16,781 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-21 13:14:16,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:14:16 BoogieIcfgContainer [2021-12-21 13:14:16,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 13:14:16,784 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 13:14:16,784 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 13:14:16,801 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 13:14:16,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 01:14:15" (1/3) ... [2021-12-21 13:14:16,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c0f4cae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:14:16, skipping insertion in model container [2021-12-21 13:14:16,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:16" (2/3) ... [2021-12-21 13:14:16,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c0f4cae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:14:16, skipping insertion in model container [2021-12-21 13:14:16,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:14:16" (3/3) ... [2021-12-21 13:14:16,803 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product57.cil.c [2021-12-21 13:14:16,810 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 13:14:16,810 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 13:14:16,854 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 13:14:16,858 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 13:14:16,859 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 13:14:16,869 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 70 states have (on average 1.3857142857142857) internal successors, (97), 78 states have internal predecessors, (97), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2021-12-21 13:14:16,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-21 13:14:16,874 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:14:16,874 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:14:16,875 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:14:16,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:14:16,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1849570436, now seen corresponding path program 1 times [2021-12-21 13:14:16,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:14:16,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082645260] [2021-12-21 13:14:16,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:16,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:14:16,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:16,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 13:14:16,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:16,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:14:16,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:14:16,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082645260] [2021-12-21 13:14:17,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082645260] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:14:17,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:14:17,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 13:14:17,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557606942] [2021-12-21 13:14:17,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:14:17,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-21 13:14:17,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:14:17,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-21 13:14:17,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 13:14:17,024 INFO L87 Difference]: Start difference. First operand has 91 states, 70 states have (on average 1.3857142857142857) internal successors, (97), 78 states have internal predecessors, (97), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 13:14:17,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:14:17,044 INFO L93 Difference]: Finished difference Result 174 states and 237 transitions. [2021-12-21 13:14:17,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 13:14:17,045 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2021-12-21 13:14:17,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:14:17,051 INFO L225 Difference]: With dead ends: 174 [2021-12-21 13:14:17,051 INFO L226 Difference]: Without dead ends: 82 [2021-12-21 13:14:17,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 13:14:17,056 INFO L933 BasicCegarLoop]: 115 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, 115 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:14:17,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:14:17,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-12-21 13:14:17,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2021-12-21 13:14:17,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 63 states have (on average 1.3174603174603174) internal successors, (83), 70 states have internal predecessors, (83), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2021-12-21 13:14:17,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 106 transitions. [2021-12-21 13:14:17,085 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 106 transitions. Word has length 23 [2021-12-21 13:14:17,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:14:17,085 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 106 transitions. [2021-12-21 13:14:17,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 13:14:17,085 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 106 transitions. [2021-12-21 13:14:17,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-21 13:14:17,087 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:14:17,087 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:14:17,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 13:14:17,088 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:14:17,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:14:17,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1054157966, now seen corresponding path program 1 times [2021-12-21 13:14:17,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:14:17,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583274243] [2021-12-21 13:14:17,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:17,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:14:17,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:17,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-21 13:14:17,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:17,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:14:17,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:14:17,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583274243] [2021-12-21 13:14:17,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583274243] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:14:17,139 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:14:17,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 13:14:17,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411743682] [2021-12-21 13:14:17,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:14:17,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 13:14:17,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:14:17,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 13:14:17,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 13:14:17,141 INFO L87 Difference]: Start difference. First operand 82 states and 106 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 13:14:17,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:14:17,151 INFO L93 Difference]: Finished difference Result 130 states and 168 transitions. [2021-12-21 13:14:17,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 13:14:17,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2021-12-21 13:14:17,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:14:17,165 INFO L225 Difference]: With dead ends: 130 [2021-12-21 13:14:17,165 INFO L226 Difference]: Without dead ends: 73 [2021-12-21 13:14:17,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 13:14:17,167 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 12 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:14:17,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 170 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:14:17,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-12-21 13:14:17,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2021-12-21 13:14:17,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 57 states have (on average 1.3333333333333333) internal successors, (76), 64 states have internal predecessors, (76), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2021-12-21 13:14:17,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 94 transitions. [2021-12-21 13:14:17,174 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 94 transitions. Word has length 24 [2021-12-21 13:14:17,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:14:17,174 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 94 transitions. [2021-12-21 13:14:17,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 13:14:17,174 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 94 transitions. [2021-12-21 13:14:17,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-21 13:14:17,175 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:14:17,175 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:14:17,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 13:14:17,176 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:14:17,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:14:17,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1057029214, now seen corresponding path program 1 times [2021-12-21 13:14:17,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:14:17,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863516454] [2021-12-21 13:14:17,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:17,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:14:17,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:17,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-21 13:14:17,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:17,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:14:17,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:14:17,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863516454] [2021-12-21 13:14:17,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863516454] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:14:17,220 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:14:17,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 13:14:17,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998454246] [2021-12-21 13:14:17,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:14:17,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 13:14:17,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:14:17,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 13:14:17,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 13:14:17,222 INFO L87 Difference]: Start difference. First operand 73 states and 94 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 13:14:17,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:14:17,232 INFO L93 Difference]: Finished difference Result 139 states and 182 transitions. [2021-12-21 13:14:17,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 13:14:17,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 28 [2021-12-21 13:14:17,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:14:17,234 INFO L225 Difference]: With dead ends: 139 [2021-12-21 13:14:17,234 INFO L226 Difference]: Without dead ends: 73 [2021-12-21 13:14:17,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 13:14:17,235 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 76 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:14:17,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 92 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:14:17,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-12-21 13:14:17,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2021-12-21 13:14:17,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 57 states have (on average 1.3157894736842106) internal successors, (75), 64 states have internal predecessors, (75), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2021-12-21 13:14:17,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 93 transitions. [2021-12-21 13:14:17,242 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 93 transitions. Word has length 28 [2021-12-21 13:14:17,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:14:17,242 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 93 transitions. [2021-12-21 13:14:17,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 13:14:17,243 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 93 transitions. [2021-12-21 13:14:17,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-21 13:14:17,244 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:14:17,244 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:14:17,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 13:14:17,244 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:14:17,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:14:17,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1228134254, now seen corresponding path program 1 times [2021-12-21 13:14:17,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:14:17,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732256767] [2021-12-21 13:14:17,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:17,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:14:17,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:17,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-21 13:14:17,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:17,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:14:17,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:14:17,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732256767] [2021-12-21 13:14:17,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732256767] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:14:17,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:14:17,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 13:14:17,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080802995] [2021-12-21 13:14:17,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:14:17,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 13:14:17,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:14:17,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 13:14:17,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 13:14:17,286 INFO L87 Difference]: Start difference. First operand 73 states and 93 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 13:14:17,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:14:17,307 INFO L93 Difference]: Finished difference Result 182 states and 237 transitions. [2021-12-21 13:14:17,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 13:14:17,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 36 [2021-12-21 13:14:17,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:14:17,308 INFO L225 Difference]: With dead ends: 182 [2021-12-21 13:14:17,308 INFO L226 Difference]: Without dead ends: 116 [2021-12-21 13:14:17,309 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 13:14:17,310 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 58 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:14:17,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 164 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:14:17,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-12-21 13:14:17,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2021-12-21 13:14:17,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 88 states have (on average 1.2954545454545454) internal successors, (114), 96 states have internal predecessors, (114), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (17), 13 states have call predecessors, (17), 13 states have call successors, (17) [2021-12-21 13:14:17,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 144 transitions. [2021-12-21 13:14:17,320 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 144 transitions. Word has length 36 [2021-12-21 13:14:17,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:14:17,321 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 144 transitions. [2021-12-21 13:14:17,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 13:14:17,321 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 144 transitions. [2021-12-21 13:14:17,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-21 13:14:17,322 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:14:17,322 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:14:17,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 13:14:17,323 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:14:17,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:14:17,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1893109632, now seen corresponding path program 1 times [2021-12-21 13:14:17,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:14:17,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116026655] [2021-12-21 13:14:17,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:17,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:14:17,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:17,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-21 13:14:17,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:17,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:14:17,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:17,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-21 13:14:17,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:17,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:14:17,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:14:17,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116026655] [2021-12-21 13:14:17,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116026655] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:14:17,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:14:17,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 13:14:17,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521307962] [2021-12-21 13:14:17,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:14:17,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 13:14:17,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:14:17,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 13:14:17,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 13:14:17,384 INFO L87 Difference]: Start difference. First operand 114 states and 144 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-21 13:14:17,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:14:17,549 INFO L93 Difference]: Finished difference Result 382 states and 509 transitions. [2021-12-21 13:14:17,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-21 13:14:17,550 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 44 [2021-12-21 13:14:17,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:14:17,552 INFO L225 Difference]: With dead ends: 382 [2021-12-21 13:14:17,552 INFO L226 Difference]: Without dead ends: 275 [2021-12-21 13:14:17,553 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-12-21 13:14:17,554 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 204 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 13:14:17,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 411 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 13:14:17,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2021-12-21 13:14:17,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 224. [2021-12-21 13:14:17,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 173 states have (on average 1.277456647398844) internal successors, (221), 184 states have internal predecessors, (221), 26 states have call successors, (26), 22 states have call predecessors, (26), 24 states have return successors, (40), 26 states have call predecessors, (40), 26 states have call successors, (40) [2021-12-21 13:14:17,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 287 transitions. [2021-12-21 13:14:17,570 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 287 transitions. Word has length 44 [2021-12-21 13:14:17,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:14:17,571 INFO L470 AbstractCegarLoop]: Abstraction has 224 states and 287 transitions. [2021-12-21 13:14:17,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-21 13:14:17,571 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 287 transitions. [2021-12-21 13:14:17,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-21 13:14:17,572 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:14:17,572 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:14:17,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 13:14:17,573 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:14:17,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:14:17,573 INFO L85 PathProgramCache]: Analyzing trace with hash -2111964350, now seen corresponding path program 1 times [2021-12-21 13:14:17,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:14:17,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054224734] [2021-12-21 13:14:17,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:17,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:14:17,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:17,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-21 13:14:17,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:17,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:14:17,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:17,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-21 13:14:17,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:17,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:14:17,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:14:17,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054224734] [2021-12-21 13:14:17,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054224734] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:14:17,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:14:17,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 13:14:17,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761021366] [2021-12-21 13:14:17,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:14:17,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 13:14:17,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:14:17,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 13:14:17,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-21 13:14:17,633 INFO L87 Difference]: Start difference. First operand 224 states and 287 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-21 13:14:17,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:14:17,826 INFO L93 Difference]: Finished difference Result 664 states and 877 transitions. [2021-12-21 13:14:17,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-21 13:14:17,827 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 44 [2021-12-21 13:14:17,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:14:17,829 INFO L225 Difference]: With dead ends: 664 [2021-12-21 13:14:17,829 INFO L226 Difference]: Without dead ends: 447 [2021-12-21 13:14:17,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2021-12-21 13:14:17,831 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 153 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 13:14:17,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 427 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 13:14:17,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2021-12-21 13:14:17,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 427. [2021-12-21 13:14:17,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 326 states have (on average 1.2453987730061349) internal successors, (406), 347 states have internal predecessors, (406), 52 states have call successors, (52), 44 states have call predecessors, (52), 48 states have return successors, (84), 52 states have call predecessors, (84), 52 states have call successors, (84) [2021-12-21 13:14:17,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 542 transitions. [2021-12-21 13:14:17,854 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 542 transitions. Word has length 44 [2021-12-21 13:14:17,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:14:17,855 INFO L470 AbstractCegarLoop]: Abstraction has 427 states and 542 transitions. [2021-12-21 13:14:17,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-21 13:14:17,855 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 542 transitions. [2021-12-21 13:14:17,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-21 13:14:17,856 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:14:17,857 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:14:17,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-21 13:14:17,857 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:14:17,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:14:17,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1296369978, now seen corresponding path program 1 times [2021-12-21 13:14:17,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:14:17,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070667928] [2021-12-21 13:14:17,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:17,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:14:17,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:17,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 13:14:17,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:17,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 13:14:17,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:17,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:14:17,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:17,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-21 13:14:17,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:17,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:14:17,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:14:17,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070667928] [2021-12-21 13:14:17,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070667928] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:14:17,924 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:14:17,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 13:14:17,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265135761] [2021-12-21 13:14:17,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:14:17,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 13:14:17,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:14:17,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 13:14:17,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-21 13:14:17,926 INFO L87 Difference]: Start difference. First operand 427 states and 542 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-21 13:14:18,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:14:18,183 INFO L93 Difference]: Finished difference Result 449 states and 570 transitions. [2021-12-21 13:14:18,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-21 13:14:18,183 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 48 [2021-12-21 13:14:18,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:14:18,185 INFO L225 Difference]: With dead ends: 449 [2021-12-21 13:14:18,185 INFO L226 Difference]: Without dead ends: 447 [2021-12-21 13:14:18,186 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2021-12-21 13:14:18,186 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 181 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-21 13:14:18,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 234 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-21 13:14:18,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2021-12-21 13:14:18,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 427. [2021-12-21 13:14:18,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 326 states have (on average 1.2361963190184049) internal successors, (403), 347 states have internal predecessors, (403), 52 states have call successors, (52), 44 states have call predecessors, (52), 48 states have return successors, (84), 52 states have call predecessors, (84), 52 states have call successors, (84) [2021-12-21 13:14:18,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 539 transitions. [2021-12-21 13:14:18,216 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 539 transitions. Word has length 48 [2021-12-21 13:14:18,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:14:18,217 INFO L470 AbstractCegarLoop]: Abstraction has 427 states and 539 transitions. [2021-12-21 13:14:18,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-21 13:14:18,217 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 539 transitions. [2021-12-21 13:14:18,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-12-21 13:14:18,219 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:14:18,219 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:14:18,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-21 13:14:18,219 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:14:18,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:14:18,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1189024351, now seen corresponding path program 1 times [2021-12-21 13:14:18,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:14:18,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844408195] [2021-12-21 13:14:18,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:18,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:14:18,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:18,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 13:14:18,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:18,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 13:14:18,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:18,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:14:18,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:18,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-21 13:14:18,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:18,270 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-21 13:14:18,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:14:18,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844408195] [2021-12-21 13:14:18,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844408195] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:14:18,271 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:14:18,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 13:14:18,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652616396] [2021-12-21 13:14:18,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:14:18,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 13:14:18,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:14:18,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 13:14:18,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-21 13:14:18,273 INFO L87 Difference]: Start difference. First operand 427 states and 539 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-21 13:14:18,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:14:18,457 INFO L93 Difference]: Finished difference Result 881 states and 1148 transitions. [2021-12-21 13:14:18,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-21 13:14:18,458 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 54 [2021-12-21 13:14:18,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:14:18,460 INFO L225 Difference]: With dead ends: 881 [2021-12-21 13:14:18,460 INFO L226 Difference]: Without dead ends: 461 [2021-12-21 13:14:18,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-21 13:14:18,462 INFO L933 BasicCegarLoop]: 85 mSDtfsCounter, 122 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 13:14:18,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 224 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 13:14:18,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2021-12-21 13:14:18,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 439. [2021-12-21 13:14:18,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 338 states have (on average 1.227810650887574) internal successors, (415), 359 states have internal predecessors, (415), 52 states have call successors, (52), 44 states have call predecessors, (52), 48 states have return successors, (84), 52 states have call predecessors, (84), 52 states have call successors, (84) [2021-12-21 13:14:18,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 551 transitions. [2021-12-21 13:14:18,477 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 551 transitions. Word has length 54 [2021-12-21 13:14:18,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:14:18,478 INFO L470 AbstractCegarLoop]: Abstraction has 439 states and 551 transitions. [2021-12-21 13:14:18,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-21 13:14:18,478 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 551 transitions. [2021-12-21 13:14:18,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-12-21 13:14:18,479 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:14:18,479 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:14:18,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-21 13:14:18,480 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:14:18,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:14:18,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1126984737, now seen corresponding path program 1 times [2021-12-21 13:14:18,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:14:18,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842685450] [2021-12-21 13:14:18,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:18,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:14:18,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:18,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 13:14:18,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:18,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 13:14:18,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:18,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:14:18,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:18,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-21 13:14:18,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:18,532 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-21 13:14:18,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:14:18,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842685450] [2021-12-21 13:14:18,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842685450] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:14:18,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:14:18,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 13:14:18,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535181044] [2021-12-21 13:14:18,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:14:18,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 13:14:18,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:14:18,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 13:14:18,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-21 13:14:18,534 INFO L87 Difference]: Start difference. First operand 439 states and 551 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2021-12-21 13:14:18,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:14:18,697 INFO L93 Difference]: Finished difference Result 795 states and 1012 transitions. [2021-12-21 13:14:18,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 13:14:18,698 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 54 [2021-12-21 13:14:18,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:14:18,700 INFO L225 Difference]: With dead ends: 795 [2021-12-21 13:14:18,700 INFO L226 Difference]: Without dead ends: 363 [2021-12-21 13:14:18,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-21 13:14:18,703 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 208 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 13:14:18,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 179 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 13:14:18,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2021-12-21 13:14:18,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 355. [2021-12-21 13:14:18,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 272 states have (on average 1.2058823529411764) internal successors, (328), 289 states have internal predecessors, (328), 42 states have call successors, (42), 36 states have call predecessors, (42), 40 states have return successors, (59), 42 states have call predecessors, (59), 42 states have call successors, (59) [2021-12-21 13:14:18,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 429 transitions. [2021-12-21 13:14:18,720 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 429 transitions. Word has length 54 [2021-12-21 13:14:18,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:14:18,720 INFO L470 AbstractCegarLoop]: Abstraction has 355 states and 429 transitions. [2021-12-21 13:14:18,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2021-12-21 13:14:18,733 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 429 transitions. [2021-12-21 13:14:18,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-21 13:14:18,735 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:14:18,735 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:14:18,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-21 13:14:18,735 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:14:18,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:14:18,736 INFO L85 PathProgramCache]: Analyzing trace with hash -666503357, now seen corresponding path program 1 times [2021-12-21 13:14:18,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:14:18,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110291826] [2021-12-21 13:14:18,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:18,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:14:18,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:18,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 13:14:18,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:18,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-21 13:14:18,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:18,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-21 13:14:18,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:18,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:14:18,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:18,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-21 13:14:18,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:18,862 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-21 13:14:18,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:14:18,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110291826] [2021-12-21 13:14:18,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110291826] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 13:14:18,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789253586] [2021-12-21 13:14:18,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:18,863 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 13:14:18,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 13:14:18,899 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 13:14:18,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-21 13:14:18,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:19,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-21 13:14:19,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 13:14:19,186 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:14:19,186 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 13:14:19,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789253586] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:14:19,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 13:14:19,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 19 [2021-12-21 13:14:19,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589937566] [2021-12-21 13:14:19,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:14:19,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 13:14:19,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:14:19,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 13:14:19,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-12-21 13:14:19,187 INFO L87 Difference]: Start difference. First operand 355 states and 429 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2021-12-21 13:14:19,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:14:19,267 INFO L93 Difference]: Finished difference Result 691 states and 839 transitions. [2021-12-21 13:14:19,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 13:14:19,267 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 58 [2021-12-21 13:14:19,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:14:19,269 INFO L225 Difference]: With dead ends: 691 [2021-12-21 13:14:19,269 INFO L226 Difference]: Without dead ends: 343 [2021-12-21 13:14:19,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2021-12-21 13:14:19,270 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 68 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 13:14:19,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 487 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 13:14:19,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2021-12-21 13:14:19,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 341. [2021-12-21 13:14:19,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 261 states have (on average 1.1915708812260537) internal successors, (311), 277 states have internal predecessors, (311), 41 states have call successors, (41), 36 states have call predecessors, (41), 38 states have return successors, (51), 40 states have call predecessors, (51), 41 states have call successors, (51) [2021-12-21 13:14:19,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 403 transitions. [2021-12-21 13:14:19,283 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 403 transitions. Word has length 58 [2021-12-21 13:14:19,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:14:19,284 INFO L470 AbstractCegarLoop]: Abstraction has 341 states and 403 transitions. [2021-12-21 13:14:19,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2021-12-21 13:14:19,284 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 403 transitions. [2021-12-21 13:14:19,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-21 13:14:19,285 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:14:19,286 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:14:19,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-21 13:14:19,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-21 13:14:19,500 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:14:19,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:14:19,500 INFO L85 PathProgramCache]: Analyzing trace with hash 759895721, now seen corresponding path program 1 times [2021-12-21 13:14:19,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:14:19,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219053424] [2021-12-21 13:14:19,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:19,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:14:19,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:19,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 13:14:19,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:19,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-21 13:14:19,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:19,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 13:14:19,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:19,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:14:19,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:19,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 13:14:19,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:19,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-21 13:14:19,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:19,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-21 13:14:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:19,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 13:14:19,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:19,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-21 13:14:19,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:19,584 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-21 13:14:19,584 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:14:19,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219053424] [2021-12-21 13:14:19,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219053424] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 13:14:19,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135139565] [2021-12-21 13:14:19,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:19,584 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 13:14:19,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 13:14:19,585 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 13:14:19,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-21 13:14:19,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:19,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-21 13:14:19,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 13:14:19,787 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-21 13:14:19,787 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 13:14:19,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1135139565] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:14:19,787 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 13:14:19,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 10 [2021-12-21 13:14:19,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492659214] [2021-12-21 13:14:19,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:14:19,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 13:14:19,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:14:19,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 13:14:19,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-12-21 13:14:19,789 INFO L87 Difference]: Start difference. First operand 341 states and 403 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-21 13:14:19,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:14:19,883 INFO L93 Difference]: Finished difference Result 1046 states and 1325 transitions. [2021-12-21 13:14:19,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-21 13:14:19,883 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 96 [2021-12-21 13:14:19,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:14:19,886 INFO L225 Difference]: With dead ends: 1046 [2021-12-21 13:14:19,887 INFO L226 Difference]: Without dead ends: 802 [2021-12-21 13:14:19,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 111 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-12-21 13:14:19,888 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 165 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:14:19,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 670 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:14:19,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2021-12-21 13:14:19,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 724. [2021-12-21 13:14:19,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 548 states have (on average 1.1934306569343065) internal successors, (654), 578 states have internal predecessors, (654), 92 states have call successors, (92), 78 states have call predecessors, (92), 83 states have return successors, (157), 95 states have call predecessors, (157), 92 states have call successors, (157) [2021-12-21 13:14:19,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 903 transitions. [2021-12-21 13:14:19,913 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 903 transitions. Word has length 96 [2021-12-21 13:14:19,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:14:19,914 INFO L470 AbstractCegarLoop]: Abstraction has 724 states and 903 transitions. [2021-12-21 13:14:19,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-21 13:14:19,914 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 903 transitions. [2021-12-21 13:14:19,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-21 13:14:19,915 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:14:19,915 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:14:19,933 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-21 13:14:20,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-21 13:14:20,121 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:14:20,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:14:20,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1045542613, now seen corresponding path program 1 times [2021-12-21 13:14:20,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:14:20,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012898120] [2021-12-21 13:14:20,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:20,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:14:20,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:20,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 13:14:20,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:20,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-21 13:14:20,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:20,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 13:14:20,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:20,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:14:20,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:20,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 13:14:20,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:20,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-21 13:14:20,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:20,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-21 13:14:20,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:20,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 13:14:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:20,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-21 13:14:20,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:20,237 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-21 13:14:20,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:14:20,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012898120] [2021-12-21 13:14:20,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012898120] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 13:14:20,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680349132] [2021-12-21 13:14:20,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:20,237 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 13:14:20,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 13:14:20,247 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) [2021-12-21 13:14:20,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-21 13:14:20,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:20,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-21 13:14:20,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 13:14:20,468 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-21 13:14:20,469 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 13:14:20,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1680349132] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:14:20,469 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 13:14:20,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-12-21 13:14:20,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107844732] [2021-12-21 13:14:20,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:14:20,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 13:14:20,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:14:20,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 13:14:20,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-12-21 13:14:20,470 INFO L87 Difference]: Start difference. First operand 724 states and 903 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2021-12-21 13:14:20,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:14:20,517 INFO L93 Difference]: Finished difference Result 995 states and 1236 transitions. [2021-12-21 13:14:20,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 13:14:20,518 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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 96 [2021-12-21 13:14:20,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:14:20,518 INFO L225 Difference]: With dead ends: 995 [2021-12-21 13:14:20,518 INFO L226 Difference]: Without dead ends: 0 [2021-12-21 13:14:20,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-12-21 13:14:20,520 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 36 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:14:20,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 331 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:14:20,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-21 13:14:20,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-21 13:14:20,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 13:14:20,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-21 13:14:20,521 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 96 [2021-12-21 13:14:20,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:14:20,521 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 13:14:20,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2021-12-21 13:14:20,522 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-21 13:14:20,522 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-21 13:14:20,523 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-21 13:14:20,541 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-21 13:14:20,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 13:14:20,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-21 13:14:23,825 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 586 592) no Hoare annotation was computed. [2021-12-21 13:14:23,825 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 586 592) the Hoare annotation is: true [2021-12-21 13:14:23,825 INFO L854 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 897 908) the Hoare annotation is: (let ((.cse1 (not (= ~pumpRunning~0 0))) (.cse0 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 (not (<= 1 ~waterLevel~0)) .cse3 (not (<= 1 |old(~methaneLevelCritical~0)|))) (or .cse0 .cse2 .cse3 (not (<= 2 ~waterLevel~0))))) [2021-12-21 13:14:23,826 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 897 908) no Hoare annotation was computed. [2021-12-21 13:14:23,826 INFO L858 garLoopResultBuilder]: For program point L901-1(lines 897 908) no Hoare annotation was computed. [2021-12-21 13:14:23,826 INFO L861 garLoopResultBuilder]: At program point L800(lines 775 804) the Hoare annotation is: true [2021-12-21 13:14:23,826 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 775 804) no Hoare annotation was computed. [2021-12-21 13:14:23,826 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 775 804) the Hoare annotation is: true [2021-12-21 13:14:23,826 INFO L858 garLoopResultBuilder]: For program point L796(line 796) no Hoare annotation was computed. [2021-12-21 13:14:23,826 INFO L858 garLoopResultBuilder]: For program point L789(lines 789 793) no Hoare annotation was computed. [2021-12-21 13:14:23,826 INFO L861 garLoopResultBuilder]: At program point L789-1(lines 789 793) the Hoare annotation is: true [2021-12-21 13:14:23,826 INFO L858 garLoopResultBuilder]: For program point L786(line 786) no Hoare annotation was computed. [2021-12-21 13:14:23,826 INFO L861 garLoopResultBuilder]: At program point L785-2(lines 785 799) the Hoare annotation is: true [2021-12-21 13:14:23,826 INFO L861 garLoopResultBuilder]: At program point L781(line 781) the Hoare annotation is: true [2021-12-21 13:14:23,826 INFO L858 garLoopResultBuilder]: For program point L781-1(line 781) no Hoare annotation was computed. [2021-12-21 13:14:23,826 INFO L854 garLoopResultBuilder]: At program point L634(line 634) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (<= 1 |old(~waterLevel~0)|))) (.cse4 (not (<= 1 ~methaneLevelCritical~0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse4 .cse5) (or .cse0 .cse1 .cse2 .cse4) (or .cse1 .cse3 .cse5))) [2021-12-21 13:14:23,826 INFO L854 garLoopResultBuilder]: At program point L969(lines 964 972) the Hoare annotation is: (let ((.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse5 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (<= 1 ~waterLevel~0))) (.cse6 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 1 |old(~waterLevel~0)|))) (.cse4 (not (<= 1 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse4 .cse5 .cse6) (or .cse1 .cse3 .cse5 .cse6) (or .cse0 .cse1 .cse2 .cse4))) [2021-12-21 13:14:23,826 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 562 585) no Hoare annotation was computed. [2021-12-21 13:14:23,826 INFO L854 garLoopResultBuilder]: At program point L676(lines 671 678) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (<= 1 |old(~waterLevel~0)|))) (.cse0 (not (= 1 ~systemActive~0))) (.cse6 (not (<= 1 ~methaneLevelCritical~0))) (.cse2 (and (= |timeShift_isLowWaterSensorDry_#res#1| 0) (= ~pumpRunning~0 0) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 |timeShift_processEnvironment_~tmp~6#1|) (= |timeShift_isLowWaterLevel_~tmp~9#1| 0) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~3#1|) (<= 1 ~waterLevel~0))) (.cse3 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse0 .cse5 .cse1) (or .cse4 .cse0 .cse5 .cse6) (or .cse0 .cse6 .cse2 .cse3))) [2021-12-21 13:14:23,826 INFO L858 garLoopResultBuilder]: For program point L65(lines 65 71) no Hoare annotation was computed. [2021-12-21 13:14:23,826 INFO L854 garLoopResultBuilder]: At program point L639(line 639) the Hoare annotation is: (let ((.cse8 (= ~pumpRunning~0 0))) (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (= |old(~waterLevel~0)| 1))) (.cse6 (and .cse8 (= ~waterLevel~0 1))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse8 (<= 2 ~waterLevel~0))) (.cse7 (not (<= 1 ~methaneLevelCritical~0))) (.cse3 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse0 .cse2 .cse6) (or .cse4 .cse5 .cse0 .cse7 .cse6) (or .cse0 .cse1 .cse7 .cse3)))) [2021-12-21 13:14:23,826 INFO L854 garLoopResultBuilder]: At program point L639-1(lines 620 644) the Hoare annotation is: (let ((.cse12 (= 1 ~systemActive~0)) (.cse13 (<= 1 ~methaneLevelCritical~0)) (.cse11 (= ~pumpRunning~0 0)) (.cse14 (<= 1 ~waterLevel~0))) (let ((.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse4 (= ~waterLevel~0 1)) (.cse6 (and (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse11 (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 |timeShift_processEnvironment_~tmp~6#1|) (= |timeShift_isLowWaterLevel_~tmp~9#1| 0) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~3#1|) .cse14)) (.cse3 (not .cse13)) (.cse7 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse11 .cse13 .cse12 .cse14)) (.cse8 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not .cse12)) (.cse9 (<= 2 ~waterLevel~0)) (.cse10 (not (<= 1 |old(~waterLevel~0)|))) (.cse5 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse2 .cse5 .cse4) (or .cse2 .cse3 .cse6 .cse7 .cse8) (or .cse0 .cse2 .cse9 .cse3 .cse8) (or .cse2 .cse9 .cse5 .cse6 .cse8) (or .cse0 .cse2 .cse10 .cse3 .cse7) (or .cse0 .cse2 .cse9 .cse5 .cse8) (or .cse0 .cse11 .cse2 .cse9 .cse10 .cse5)))) [2021-12-21 13:14:23,827 INFO L858 garLoopResultBuilder]: For program point L61(lines 61 74) no Hoare annotation was computed. [2021-12-21 13:14:23,827 INFO L858 garLoopResultBuilder]: For program point L573-1(lines 573 579) no Hoare annotation was computed. [2021-12-21 13:14:23,827 INFO L854 garLoopResultBuilder]: At program point L61-1(lines 53 77) the Hoare annotation is: (let ((.cse6 (= ~pumpRunning~0 0)) (.cse17 (<= 1 ~methaneLevelCritical~0)) (.cse18 (= 1 ~systemActive~0)) (.cse7 (= |timeShift___utac_acc__Specification1_spec__1_~tmp~0#1| 0)) (.cse19 (<= 2 ~waterLevel~0))) (let ((.cse5 (and .cse7 .cse19)) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse9 (= |timeShift_isLowWaterSensorDry_#res#1| 0)) (.cse10 (<= 1 |timeShift_isLowWaterLevel_#res#1|)) (.cse11 (<= 1 |timeShift_processEnvironment_~tmp~6#1|)) (.cse12 (= |timeShift_isLowWaterLevel_~tmp~9#1| 0)) (.cse13 (<= 1 |timeShift_isLowWaterLevel_~tmp___0~3#1|)) (.cse14 (<= 1 ~waterLevel~0)) (.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse4 (= ~waterLevel~0 1)) (.cse15 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse6 .cse17 .cse19 .cse18)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not .cse18)) (.cse16 (not .cse17)) (.cse8 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse2 .cse5 (not (<= 1 |old(~waterLevel~0)|)) (and .cse6 .cse7) .cse3) (or .cse0 .cse2 .cse5 .cse3 .cse8) (or .cse2 .cse5 .cse3 (and .cse9 .cse6 .cse7 .cse10 .cse11 .cse12 .cse13 .cse14) .cse8) (or .cse15 .cse2 .cse16 (and .cse9 .cse6 .cse10 .cse11 .cse12 .cse13 .cse14) .cse8) (or .cse0 .cse1 .cse2 .cse16 (and .cse6 .cse4)) (or .cse15 .cse0 .cse2 .cse16 .cse8)))) [2021-12-21 13:14:23,827 INFO L858 garLoopResultBuilder]: For program point L763(lines 763 767) no Hoare annotation was computed. [2021-12-21 13:14:23,827 INFO L858 garLoopResultBuilder]: For program point L763-2(lines 763 767) no Hoare annotation was computed. [2021-12-21 13:14:23,827 INFO L858 garLoopResultBuilder]: For program point L978(line 978) no Hoare annotation was computed. [2021-12-21 13:14:23,827 INFO L858 garLoopResultBuilder]: For program point L566-1(lines 565 584) no Hoare annotation was computed. [2021-12-21 13:14:23,827 INFO L858 garLoopResultBuilder]: For program point L628(lines 628 636) no Hoare annotation was computed. [2021-12-21 13:14:23,827 INFO L854 garLoopResultBuilder]: At program point L979(lines 974 981) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (<= 1 |old(~waterLevel~0)|))) (.cse4 (not (<= 1 ~methaneLevelCritical~0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse4 .cse5) (or .cse0 .cse1 .cse2 .cse4) (or .cse1 .cse3 .cse5))) [2021-12-21 13:14:23,827 INFO L858 garLoopResultBuilder]: For program point L624(lines 624 641) no Hoare annotation was computed. [2021-12-21 13:14:23,827 INFO L854 garLoopResultBuilder]: At program point L769(lines 754 772) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (<= 1 |old(~waterLevel~0)|))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse5 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (= |timeShift_isLowWaterLevel_~tmp~9#1| 0) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~3#1|) (<= 1 ~waterLevel~0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse4 (not (<= 1 ~methaneLevelCritical~0))) (.cse6 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 .cse4) (or .cse5 .cse1 .cse3 .cse6) (or .cse5 .cse1 .cse4 .cse6))) [2021-12-21 13:14:23,827 INFO L854 garLoopResultBuilder]: At program point L59(line 59) the Hoare annotation is: (let ((.cse12 (= 1 ~systemActive~0)) (.cse13 (<= 1 ~methaneLevelCritical~0)) (.cse11 (= ~pumpRunning~0 0)) (.cse14 (<= 1 ~waterLevel~0))) (let ((.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse4 (= ~waterLevel~0 1)) (.cse6 (and (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse11 (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 |timeShift_processEnvironment_~tmp~6#1|) (= |timeShift_isLowWaterLevel_~tmp~9#1| 0) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~3#1|) .cse14)) (.cse3 (not .cse13)) (.cse7 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse11 .cse13 .cse12 .cse14)) (.cse8 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not .cse12)) (.cse9 (<= 2 ~waterLevel~0)) (.cse10 (not (<= 1 |old(~waterLevel~0)|))) (.cse5 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse2 .cse5 .cse4) (or .cse2 .cse3 .cse6 .cse7 .cse8) (or .cse0 .cse2 .cse9 .cse3 .cse8) (or .cse2 .cse9 .cse5 .cse6 .cse8) (or .cse0 .cse2 .cse10 .cse3 .cse7) (or .cse0 .cse2 .cse9 .cse5 .cse8) (or .cse0 .cse11 .cse2 .cse9 .cse10 .cse5)))) [2021-12-21 13:14:23,827 INFO L858 garLoopResultBuilder]: For program point L59-1(line 59) no Hoare annotation was computed. [2021-12-21 13:14:23,827 INFO L854 garLoopResultBuilder]: At program point L695(lines 690 698) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 0)) (.cse9 (<= 1 ~methaneLevelCritical~0)) (.cse10 (= 1 ~systemActive~0))) (let ((.cse3 (not (<= 1 |old(~waterLevel~0)|))) (.cse6 (= |timeShift_isPumpRunning_#res#1| 0)) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse7 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse5 .cse9 (<= 2 ~waterLevel~0) .cse10)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not .cse10)) (.cse2 (not .cse9)) (.cse8 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 .cse2 (= ~waterLevel~0 1)) (or .cse0 .cse1 .cse3 .cse4) (or .cse0 .cse1 .cse3 (and .cse5 .cse6) .cse2) (or .cse7 (and (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse5 .cse6 (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 |timeShift_processEnvironment_~tmp~6#1|) (= |timeShift_isLowWaterLevel_~tmp~9#1| 0) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~3#1|) (<= 1 ~waterLevel~0)) .cse1 .cse2 .cse8) (or .cse1 .cse4 .cse8) (or .cse7 .cse0 .cse1 .cse2 .cse8)))) [2021-12-21 13:14:23,827 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 562 585) the Hoare annotation is: (let ((.cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 2 ~waterLevel~0))) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse3 (not (<= 2 |old(~waterLevel~0)|))) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (= |old(~waterLevel~0)| 1))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 1 ~methaneLevelCritical~0))) (.cse7 (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse0 .cse6 .cse7) (or .cse0 .cse1 .cse6 .cse3) (or .cse4 .cse5 .cse0 .cse2 .cse7))) [2021-12-21 13:14:23,828 INFO L858 garLoopResultBuilder]: For program point L877(lines 877 881) no Hoare annotation was computed. [2021-12-21 13:14:23,828 INFO L854 garLoopResultBuilder]: At program point L877-2(lines 873 884) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (<= 1 |old(~waterLevel~0)|))) (.cse0 (not (= 1 ~systemActive~0))) (.cse6 (not (<= 1 ~methaneLevelCritical~0))) (.cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0))) (.cse3 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse0 .cse5 .cse1) (or .cse4 .cse0 .cse5 .cse6) (or .cse0 .cse6 .cse2 .cse3))) [2021-12-21 13:14:23,828 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 562 585) no Hoare annotation was computed. [2021-12-21 13:14:23,828 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 978) no Hoare annotation was computed. [2021-12-21 13:14:23,828 INFO L861 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 909 917) the Hoare annotation is: true [2021-12-21 13:14:23,828 INFO L858 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 909 917) no Hoare annotation was computed. [2021-12-21 13:14:23,828 INFO L858 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 909 917) no Hoare annotation was computed. [2021-12-21 13:14:23,828 INFO L854 garLoopResultBuilder]: At program point L97(lines 93 99) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-21 13:14:23,828 INFO L861 garLoopResultBuilder]: At program point L865(lines 846 868) the Hoare annotation is: true [2021-12-21 13:14:23,828 INFO L854 garLoopResultBuilder]: At program point L543(lines 496 544) the Hoare annotation is: false [2021-12-21 13:14:23,828 INFO L858 garLoopResultBuilder]: For program point L498(lines 497 542) no Hoare annotation was computed. [2021-12-21 13:14:23,828 INFO L858 garLoopResultBuilder]: For program point L527(lines 527 538) no Hoare annotation was computed. [2021-12-21 13:14:23,828 INFO L854 garLoopResultBuilder]: At program point L519(line 519) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse4 (<= 1 ~waterLevel~0)) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse2 .cse3 .cse4) (and .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3))) [2021-12-21 13:14:23,828 INFO L854 garLoopResultBuilder]: At program point L833(lines 829 835) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-21 13:14:23,828 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-21 13:14:23,828 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-21 13:14:23,828 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-21 13:14:23,828 INFO L854 garLoopResultBuilder]: At program point L540(lines 497 542) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse4 (<= 1 ~waterLevel~0)) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse2 .cse3 .cse4) (and .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3))) [2021-12-21 13:14:23,828 INFO L858 garLoopResultBuilder]: For program point L507(lines 507 513) no Hoare annotation was computed. [2021-12-21 13:14:23,828 INFO L858 garLoopResultBuilder]: For program point L507-1(lines 507 513) no Hoare annotation was computed. [2021-12-21 13:14:23,828 INFO L858 garLoopResultBuilder]: For program point L499(lines 499 503) no Hoare annotation was computed. [2021-12-21 13:14:23,828 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-21 13:14:23,829 INFO L858 garLoopResultBuilder]: For program point L533(lines 533 537) no Hoare annotation was computed. [2021-12-21 13:14:23,829 INFO L854 garLoopResultBuilder]: At program point L533-2(lines 527 538) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 0)) (.cse0 (<= 1 ~methaneLevelCritical~0)) (.cse6 (<= 1 ~waterLevel~0)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse2 .cse3 .cse6) (and .cse4 .cse0 .cse2 .cse3 .cse6) (and .cse5 .cse1 .cse2 .cse3))) [2021-12-21 13:14:23,829 INFO L854 garLoopResultBuilder]: At program point L112(lines 107 115) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-21 13:14:23,829 INFO L861 garLoopResultBuilder]: At program point L843(lines 836 845) the Hoare annotation is: true [2021-12-21 13:14:23,829 INFO L854 garLoopResultBuilder]: At program point L104(lines 100 106) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-21 13:14:23,829 INFO L858 garLoopResultBuilder]: For program point L517(lines 517 523) no Hoare annotation was computed. [2021-12-21 13:14:23,829 INFO L858 garLoopResultBuilder]: For program point L517-1(lines 517 523) no Hoare annotation was computed. [2021-12-21 13:14:23,829 INFO L861 garLoopResultBuilder]: At program point L546(lines 487 550) the Hoare annotation is: true [2021-12-21 13:14:23,829 INFO L854 garLoopResultBuilder]: At program point L509(line 509) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse4 (<= 1 ~waterLevel~0)) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse2 .cse3 .cse4) (and .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3))) [2021-12-21 13:14:23,829 INFO L858 garLoopResultBuilder]: For program point L856(lines 856 863) no Hoare annotation was computed. [2021-12-21 13:14:23,829 INFO L858 garLoopResultBuilder]: For program point L856-2(lines 856 863) no Hoare annotation was computed. [2021-12-21 13:14:23,829 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 594 618) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (not (<= 1 ~waterLevel~0)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse1 .cse2 .cse3 (not (<= 1 ~methaneLevelCritical~0))))) [2021-12-21 13:14:23,829 INFO L858 garLoopResultBuilder]: For program point L954(lines 954 960) no Hoare annotation was computed. [2021-12-21 13:14:23,829 INFO L858 garLoopResultBuilder]: For program point L661(lines 661 667) no Hoare annotation was computed. [2021-12-21 13:14:23,829 INFO L854 garLoopResultBuilder]: At program point L661-2(lines 654 670) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 1 ~waterLevel~0)) (and (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0) (<= ~methaneLevelCritical~0 |processEnvironment__wrappee__highWaterSensor_isMethaneAlarm_#res#1|) (<= ~methaneLevelCritical~0 |processEnvironment__wrappee__highWaterSensor_activatePump_~tmp~7#1|)) (not (<= 1 ~methaneLevelCritical~0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))))) [2021-12-21 13:14:23,829 INFO L854 garLoopResultBuilder]: At program point L750(lines 735 753) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse6 (= ~pumpRunning~0 0))) (let ((.cse0 (and .cse5 (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~8#1| 0)) .cse6 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~2#1| 0) (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0)) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0))) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (not (<= 1 ~waterLevel~0))) (.cse4 (and .cse5 .cse6 (<= 2 ~waterLevel~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 (not (<= 1 ~methaneLevelCritical~0))) (or .cse0 .cse1 .cse2 .cse3 .cse4 (not (= ~methaneLevelCritical~0 0)))))) [2021-12-21 13:14:23,829 INFO L854 garLoopResultBuilder]: At program point L686(lines 679 689) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 1 ~waterLevel~0))) (.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse4 (= ~pumpRunning~0 0)) (.cse5 (<= 2 ~waterLevel~0))) (and (or .cse0 .cse1 .cse2 (and .cse3 .cse4 .cse5) (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse1 .cse2 (not (<= 1 ~methaneLevelCritical~0)) (and .cse3 .cse4 .cse5 (<= ~methaneLevelCritical~0 |processEnvironment__wrappee__highWaterSensor_isMethaneAlarm_#res#1|))))) [2021-12-21 13:14:23,829 INFO L854 garLoopResultBuilder]: At program point L684(line 684) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 1 ~waterLevel~0))) (.cse3 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (<= 1 ~methaneLevelCritical~0))) (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))))) [2021-12-21 13:14:23,829 INFO L858 garLoopResultBuilder]: For program point L684-1(line 684) no Hoare annotation was computed. [2021-12-21 13:14:23,829 INFO L858 garLoopResultBuilder]: For program point L744(lines 744 748) no Hoare annotation was computed. [2021-12-21 13:14:23,830 INFO L858 garLoopResultBuilder]: For program point L744-2(lines 744 748) no Hoare annotation was computed. [2021-12-21 13:14:23,830 INFO L854 garLoopResultBuilder]: At program point L608(line 608) the Hoare annotation is: (let ((.cse8 (= 1 ~systemActive~0))) (let ((.cse4 (not (<= 1 ~methaneLevelCritical~0))) (.cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~5#1| 0) .cse8)) (.cse3 (not (<= 1 ~waterLevel~0))) (.cse5 (not (= ~waterLevel~0 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (and (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~8#1| 0)) (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0)))) (.cse1 (not .cse8)) (.cse7 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse0 .cse6 .cse1 .cse4) (or .cse0 .cse1 .cse2 .cse3 .cse7) (or .cse5 .cse0 .cse6 .cse1 .cse7)))) [2021-12-21 13:14:23,830 INFO L854 garLoopResultBuilder]: At program point L959(lines 950 963) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse9 (= 1 ~systemActive~0)) (.cse4 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0)) (.cse10 (<= 2 ~waterLevel~0))) (let ((.cse2 (not .cse10)) (.cse6 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse3 .cse10 .cse9 .cse4)) (.cse7 (not (<= 1 ~methaneLevelCritical~0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not .cse9)) (.cse8 (and .cse3 (not .cse4))) (.cse5 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 (and .cse3 .cse4) .cse5) (or .cse0 .cse6 .cse1 .cse2 .cse7) (or .cse0 .cse6 .cse1 (not (<= 1 ~waterLevel~0)) .cse8 .cse7) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse8 .cse5)))) [2021-12-21 13:14:23,830 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 594 618) no Hoare annotation was computed. [2021-12-21 13:14:23,830 INFO L858 garLoopResultBuilder]: For program point L602(lines 602 610) no Hoare annotation was computed. [2021-12-21 13:14:23,830 INFO L858 garLoopResultBuilder]: For program point L598(lines 598 615) no Hoare annotation was computed. [2021-12-21 13:14:23,830 INFO L854 garLoopResultBuilder]: At program point L650(lines 645 652) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 1 ~waterLevel~0)) (not (<= 1 ~methaneLevelCritical~0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))))) [2021-12-21 13:14:23,830 INFO L854 garLoopResultBuilder]: At program point L613(line 613) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 1 ~waterLevel~0)))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse1 .cse2 (not (<= 1 ~methaneLevelCritical~0))))) [2021-12-21 13:14:23,830 INFO L858 garLoopResultBuilder]: For program point L613-1(lines 594 618) no Hoare annotation was computed. [2021-12-21 13:14:23,830 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 885 896) no Hoare annotation was computed. [2021-12-21 13:14:23,830 INFO L858 garLoopResultBuilder]: For program point L889-1(lines 885 896) no Hoare annotation was computed. [2021-12-21 13:14:23,830 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 885 896) the Hoare annotation is: (let ((.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse4 (= ~waterLevel~0 1)) (.cse0 (not (= ~pumpRunning~0 0))) (.cse5 (not (<= 1 ~methaneLevelCritical~0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse6 (<= 2 ~waterLevel~0)) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse7 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse2 .cse5 .cse4) (or .cse0 .cse2 .cse6 .cse5 .cse7) (or .cse2 .cse6 .cse3 .cse7))) [2021-12-21 13:14:23,836 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:14:23,837 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-21 13:14:23,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 01:14:23 BoogieIcfgContainer [2021-12-21 13:14:23,872 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-21 13:14:23,873 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 13:14:23,873 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 13:14:23,873 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 13:14:23,874 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:14:16" (3/4) ... [2021-12-21 13:14:23,876 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-21 13:14:23,879 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-12-21 13:14:23,879 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-12-21 13:14:23,879 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-12-21 13:14:23,880 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-12-21 13:14:23,880 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2021-12-21 13:14:23,880 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2021-12-21 13:14:23,880 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-12-21 13:14:23,892 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 52 nodes and edges [2021-12-21 13:14:23,893 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-12-21 13:14:23,893 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-21 13:14:23,893 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-21 13:14:23,893 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-21 13:14:23,894 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-21 13:14:23,894 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-21 13:14:23,909 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(methaneLevelCritical == 0))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(1 <= methaneLevelCritical))) && (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) [2021-12-21 13:14:23,910 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || waterLevel == 1) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || waterLevel == 1)) && ((((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || ((((((\result == 0 && pumpRunning == 0) && 1 <= \result) && 1 <= tmp) && tmp == 0) && 1 <= tmp___0) && 1 <= waterLevel)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 <= methaneLevelCritical) && 1 == systemActive) && 1 <= waterLevel)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || 2 <= waterLevel) || !(1 <= methaneLevelCritical)) || !(2 <= \old(waterLevel)))) && ((((!(1 == systemActive) || 2 <= waterLevel) || !(methaneLevelCritical == 0)) || ((((((\result == 0 && pumpRunning == 0) && 1 <= \result) && 1 <= tmp) && tmp == 0) && 1 <= tmp___0) && 1 <= waterLevel)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(1 <= methaneLevelCritical)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 <= methaneLevelCritical) && 1 == systemActive) && 1 <= waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || 2 <= waterLevel) || !(methaneLevelCritical == 0)) || !(2 <= \old(waterLevel)))) && (((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || 2 <= waterLevel) || !(1 <= \old(waterLevel))) || !(methaneLevelCritical == 0)) [2021-12-21 13:14:23,911 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || waterLevel == 1) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (tmp == 0 && 2 <= waterLevel)) || !(1 <= \old(waterLevel))) || (pumpRunning == 0 && tmp == 0)) || !(methaneLevelCritical == 0))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (tmp == 0 && 2 <= waterLevel)) || !(methaneLevelCritical == 0)) || !(2 <= \old(waterLevel)))) && ((((!(1 == systemActive) || (tmp == 0 && 2 <= waterLevel)) || !(methaneLevelCritical == 0)) || (((((((\result == 0 && pumpRunning == 0) && tmp == 0) && 1 <= \result) && 1 <= tmp) && tmp == 0) && 1 <= tmp___0) && 1 <= waterLevel)) || !(2 <= \old(waterLevel)))) && ((((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 <= methaneLevelCritical) && 2 <= waterLevel) && 1 == systemActive) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || ((((((\result == 0 && pumpRunning == 0) && 1 <= \result) && 1 <= tmp) && tmp == 0) && 1 <= tmp___0) && 1 <= waterLevel)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && waterLevel == 1))) && ((((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 <= methaneLevelCritical) && 2 <= waterLevel) && 1 == systemActive) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || !(2 <= \old(waterLevel))) [2021-12-21 13:14:23,911 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel)) || !(methaneLevelCritical == 0)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || !(1 <= methaneLevelCritical)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel) && methaneLevelCritical <= \result)) [2021-12-21 13:14:23,911 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || waterLevel == 1) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(methaneLevelCritical == 0))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || (pumpRunning == 0 && \result == 0)) || !(1 <= methaneLevelCritical))) && ((((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 <= methaneLevelCritical) && 2 <= waterLevel) && 1 == systemActive) || (((((((\result == 0 && pumpRunning == 0) && \result == 0) && 1 <= \result) && 1 <= tmp) && tmp == 0) && 1 <= tmp___0) && 1 <= waterLevel)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || !(2 <= \old(waterLevel)))) && ((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(2 <= \old(waterLevel)))) && ((((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 <= methaneLevelCritical) && 2 <= waterLevel) && 1 == systemActive) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || !(2 <= \old(waterLevel))) [2021-12-21 13:14:23,911 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(methaneLevelCritical == 0)) && (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || ((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= waterLevel)) || !(2 <= \old(waterLevel)))) && (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || ((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= waterLevel)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(1 <= methaneLevelCritical)) [2021-12-21 13:14:23,911 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || (((pumpRunning == 0 && 2 <= waterLevel) && methaneLevelCritical <= \result) && methaneLevelCritical <= tmp)) || !(1 <= methaneLevelCritical)) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) [2021-12-21 13:14:23,912 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(2 <= waterLevel)) || (pumpRunning == 0 && \result == 0)) || !(methaneLevelCritical == 0)) && ((((!(\old(pumpRunning) == 0) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel) && 1 == systemActive) && \result == 0)) || !(1 == systemActive)) || !(2 <= waterLevel)) || !(1 <= methaneLevelCritical))) && (((((!(\old(pumpRunning) == 0) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel) && 1 == systemActive) && \result == 0)) || !(1 == systemActive)) || !(1 <= waterLevel)) || (pumpRunning == 0 && !(\result == 0))) || !(1 <= methaneLevelCritical))) && ((((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && !(\result == 0))) || !(methaneLevelCritical == 0)) [2021-12-21 13:14:23,912 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || !(1 <= methaneLevelCritical)) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) [2021-12-21 13:14:23,912 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(methaneLevelCritical == 0)) && ((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(1 <= methaneLevelCritical))) && ((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(2 <= \old(waterLevel))) [2021-12-21 13:14:23,912 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(1 <= methaneLevelCritical))) && ((((((((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= \result) && tmp == 0) && 1 <= tmp___0) && 1 <= waterLevel) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(2 <= \old(waterLevel)))) && ((((((((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= \result) && tmp == 0) && 1 <= tmp___0) && 1 <= waterLevel) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || !(2 <= \old(waterLevel))) [2021-12-21 13:14:23,912 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((pumpRunning == \old(pumpRunning) && !(tmp == 0)) && pumpRunning == 0) && tmp___0 == 0) && !(\result == 0)) && \result == 0) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(1 <= waterLevel)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel)) || !(1 <= methaneLevelCritical)) && ((((((((((pumpRunning == \old(pumpRunning) && !(tmp == 0)) && pumpRunning == 0) && tmp___0 == 0) && !(\result == 0)) && \result == 0) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(1 <= waterLevel)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel)) || !(methaneLevelCritical == 0)) [2021-12-21 13:14:23,912 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || ((((((\result == 0 && pumpRunning == 0) && 1 <= \result) && 1 <= tmp) && tmp == 0) && 1 <= tmp___0) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(methaneLevelCritical == 0))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(1 <= methaneLevelCritical))) && (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || ((((((\result == 0 && pumpRunning == 0) && 1 <= \result) && 1 <= tmp) && tmp == 0) && 1 <= tmp___0) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) [2021-12-21 13:14:23,939 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-21 13:14:23,940 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 13:14:23,940 INFO L158 Benchmark]: Toolchain (without parser) took 7971.60ms. Allocated memory was 94.4MB in the beginning and 207.6MB in the end (delta: 113.2MB). Free memory was 62.8MB in the beginning and 121.5MB in the end (delta: -58.6MB). Peak memory consumption was 52.7MB. Max. memory is 16.1GB. [2021-12-21 13:14:23,940 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 94.4MB. Free memory was 52.3MB in the beginning and 52.2MB in the end (delta: 48.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 13:14:23,941 INFO L158 Benchmark]: CACSL2BoogieTranslator took 321.79ms. Allocated memory is still 94.4MB. Free memory was 62.6MB in the beginning and 61.1MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 13:14:23,941 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.15ms. Allocated memory is still 94.4MB. Free memory was 61.1MB in the beginning and 58.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 13:14:23,941 INFO L158 Benchmark]: Boogie Preprocessor took 37.24ms. Allocated memory is still 94.4MB. Free memory was 58.8MB in the beginning and 57.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 13:14:23,942 INFO L158 Benchmark]: RCFGBuilder took 396.87ms. Allocated memory was 94.4MB in the beginning and 134.2MB in the end (delta: 39.8MB). Free memory was 57.2MB in the beginning and 105.0MB in the end (delta: -47.8MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2021-12-21 13:14:23,942 INFO L158 Benchmark]: TraceAbstraction took 7088.32ms. Allocated memory was 134.2MB in the beginning and 207.6MB in the end (delta: 73.4MB). Free memory was 104.4MB in the beginning and 128.8MB in the end (delta: -24.4MB). Peak memory consumption was 118.0MB. Max. memory is 16.1GB. [2021-12-21 13:14:23,942 INFO L158 Benchmark]: Witness Printer took 66.95ms. Allocated memory is still 207.6MB. Free memory was 128.8MB in the beginning and 121.5MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-21 13:14:23,943 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 94.4MB. Free memory was 52.3MB in the beginning and 52.2MB in the end (delta: 48.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 321.79ms. Allocated memory is still 94.4MB. Free memory was 62.6MB in the beginning and 61.1MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.15ms. Allocated memory is still 94.4MB. Free memory was 61.1MB in the beginning and 58.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.24ms. Allocated memory is still 94.4MB. Free memory was 58.8MB in the beginning and 57.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 396.87ms. Allocated memory was 94.4MB in the beginning and 134.2MB in the end (delta: 39.8MB). Free memory was 57.2MB in the beginning and 105.0MB in the end (delta: -47.8MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. * TraceAbstraction took 7088.32ms. Allocated memory was 134.2MB in the beginning and 207.6MB in the end (delta: 73.4MB). Free memory was 104.4MB in the beginning and 128.8MB in the end (delta: -24.4MB). Peak memory consumption was 118.0MB. Max. memory is 16.1GB. * Witness Printer took 66.95ms. Allocated memory is still 207.6MB. Free memory was 128.8MB in the beginning and 121.5MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 978]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 91 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.0s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1309 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1283 mSDsluCounter, 3504 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2204 mSDsCounter, 314 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1279 IncrementalHoareTripleChecker+Invalid, 1593 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 314 mSolverCounterUnsat, 1300 mSDtfsCounter, 1279 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 449 GetRequests, 341 SyntacticMatches, 4 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=724occurred in iteration=11, InterpolantAutomatonStates: 89, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 203 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 42 LocationsWithAnnotation, 1471 PreInvPairs, 1618 NumberOfFragments, 2509 HoareAnnotationTreeSize, 1471 FomulaSimplifications, 186 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 42 FomulaSimplificationsInter, 6821 FormulaSimplificationTreeSizeReductionInter, 2.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 855 NumberOfCodeBlocks, 855 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 840 ConstructedInterpolants, 0 QuantifiedInterpolants, 1496 SizeOfPredicates, 11 NumberOfNonLiveVariables, 1308 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 126/132 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: 846]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 964]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(methaneLevelCritical == 0)) && (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || ((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= waterLevel)) || !(2 <= \old(waterLevel)))) && (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || ((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= waterLevel)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(1 <= methaneLevelCritical)) - InvariantResult [Line: 679]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel)) || !(methaneLevelCritical == 0)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || !(1 <= methaneLevelCritical)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel) && methaneLevelCritical <= \result)) - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 107]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 487]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 836]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 620]: Loop Invariant Derived loop invariant: ((((((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || waterLevel == 1) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || waterLevel == 1)) && ((((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || ((((((\result == 0 && pumpRunning == 0) && 1 <= \result) && 1 <= tmp) && tmp == 0) && 1 <= tmp___0) && 1 <= waterLevel)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 <= methaneLevelCritical) && 1 == systemActive) && 1 <= waterLevel)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || 2 <= waterLevel) || !(1 <= methaneLevelCritical)) || !(2 <= \old(waterLevel)))) && ((((!(1 == systemActive) || 2 <= waterLevel) || !(methaneLevelCritical == 0)) || ((((((\result == 0 && pumpRunning == 0) && 1 <= \result) && 1 <= tmp) && tmp == 0) && 1 <= tmp___0) && 1 <= waterLevel)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(1 <= methaneLevelCritical)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 <= methaneLevelCritical) && 1 == systemActive) && 1 <= waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || 2 <= waterLevel) || !(methaneLevelCritical == 0)) || !(2 <= \old(waterLevel)))) && (((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || 2 <= waterLevel) || !(1 <= \old(waterLevel))) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 671]: Loop Invariant Derived loop invariant: (((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || ((((((\result == 0 && pumpRunning == 0) && 1 <= \result) && 1 <= tmp) && tmp == 0) && 1 <= tmp___0) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(methaneLevelCritical == 0))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(1 <= methaneLevelCritical))) && (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || ((((((\result == 0 && pumpRunning == 0) && 1 <= \result) && 1 <= tmp) && tmp == 0) && 1 <= tmp___0) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 645]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || !(1 <= methaneLevelCritical)) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 93]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: (((((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || waterLevel == 1) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (tmp == 0 && 2 <= waterLevel)) || !(1 <= \old(waterLevel))) || (pumpRunning == 0 && tmp == 0)) || !(methaneLevelCritical == 0))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (tmp == 0 && 2 <= waterLevel)) || !(methaneLevelCritical == 0)) || !(2 <= \old(waterLevel)))) && ((((!(1 == systemActive) || (tmp == 0 && 2 <= waterLevel)) || !(methaneLevelCritical == 0)) || (((((((\result == 0 && pumpRunning == 0) && tmp == 0) && 1 <= \result) && 1 <= tmp) && tmp == 0) && 1 <= tmp___0) && 1 <= waterLevel)) || !(2 <= \old(waterLevel)))) && ((((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 <= methaneLevelCritical) && 2 <= waterLevel) && 1 == systemActive) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || ((((((\result == 0 && pumpRunning == 0) && 1 <= \result) && 1 <= tmp) && tmp == 0) && 1 <= tmp___0) && 1 <= waterLevel)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && waterLevel == 1))) && ((((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 <= methaneLevelCritical) && 2 <= waterLevel) && 1 == systemActive) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 654]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || (((pumpRunning == 0 && 2 <= waterLevel) && methaneLevelCritical <= \result) && methaneLevelCritical <= tmp)) || !(1 <= methaneLevelCritical)) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 497]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && splverifierCounter == 0) && 1 <= waterLevel) || ((((pumpRunning == 0 && 1 <= methaneLevelCritical) && 1 == systemActive) && splverifierCounter == 0) && 1 <= waterLevel)) || (((methaneLevelCritical == 0 && 2 <= waterLevel) && 1 == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 735]: Loop Invariant Derived loop invariant: ((((((((((pumpRunning == \old(pumpRunning) && !(tmp == 0)) && pumpRunning == 0) && tmp___0 == 0) && !(\result == 0)) && \result == 0) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(1 <= waterLevel)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel)) || !(1 <= methaneLevelCritical)) && ((((((((((pumpRunning == \old(pumpRunning) && !(tmp == 0)) && pumpRunning == 0) && tmp___0 == 0) && !(\result == 0)) && \result == 0) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(1 <= waterLevel)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel)) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 690]: Loop Invariant Derived loop invariant: ((((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || waterLevel == 1) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(methaneLevelCritical == 0))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || (pumpRunning == 0 && \result == 0)) || !(1 <= methaneLevelCritical))) && ((((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 <= methaneLevelCritical) && 2 <= waterLevel) && 1 == systemActive) || (((((((\result == 0 && pumpRunning == 0) && \result == 0) && 1 <= \result) && 1 <= tmp) && tmp == 0) && 1 <= tmp___0) && 1 <= waterLevel)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || !(2 <= \old(waterLevel)))) && ((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(2 <= \old(waterLevel)))) && ((((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 <= methaneLevelCritical) && 2 <= waterLevel) && 1 == systemActive) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 950]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(2 <= waterLevel)) || (pumpRunning == 0 && \result == 0)) || !(methaneLevelCritical == 0)) && ((((!(\old(pumpRunning) == 0) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel) && 1 == systemActive) && \result == 0)) || !(1 == systemActive)) || !(2 <= waterLevel)) || !(1 <= methaneLevelCritical))) && (((((!(\old(pumpRunning) == 0) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel) && 1 == systemActive) && \result == 0)) || !(1 == systemActive)) || !(1 <= waterLevel)) || (pumpRunning == 0 && !(\result == 0))) || !(1 <= methaneLevelCritical))) && ((((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && !(\result == 0))) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 873]: Loop Invariant Derived loop invariant: (((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(methaneLevelCritical == 0))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(1 <= methaneLevelCritical))) && (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 754]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(1 <= methaneLevelCritical))) && ((((((((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= \result) && tmp == 0) && 1 <= tmp___0) && 1 <= waterLevel) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(2 <= \old(waterLevel)))) && ((((((((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= \result) && tmp == 0) && 1 <= tmp___0) && 1 <= waterLevel) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 829]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 496]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 785]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 775]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 974]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(methaneLevelCritical == 0)) && ((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(1 <= methaneLevelCritical))) && ((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(2 <= \old(waterLevel))) RESULT: Ultimate proved your program to be correct! [2021-12-21 13:14:23,993 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