./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product13.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_spec4_product13.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 1b7b562c6a835e9c81bbd978940c7270ae455ff1120bac33da414b2ebf27928d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 13:15:52,100 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 13:15:52,101 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 13:15:52,166 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 13:15:52,166 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 13:15:52,169 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 13:15:52,170 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 13:15:52,172 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 13:15:52,173 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 13:15:52,176 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 13:15:52,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 13:15:52,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 13:15:52,178 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 13:15:52,180 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 13:15:52,181 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 13:15:52,183 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 13:15:52,184 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 13:15:52,184 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 13:15:52,186 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 13:15:52,190 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 13:15:52,191 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 13:15:52,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 13:15:52,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 13:15:52,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 13:15:52,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 13:15:52,199 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 13:15:52,199 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 13:15:52,200 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 13:15:52,200 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 13:15:52,201 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 13:15:52,201 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 13:15:52,201 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 13:15:52,202 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 13:15:52,202 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 13:15:52,203 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 13:15:52,203 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 13:15:52,204 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 13:15:52,204 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 13:15:52,204 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 13:15:52,205 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 13:15:52,205 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 13:15:52,206 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 13:15:52,220 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 13:15:52,220 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 13:15:52,221 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 13:15:52,221 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 13:15:52,221 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 13:15:52,221 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 13:15:52,222 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 13:15:52,222 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 13:15:52,222 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 13:15:52,222 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 13:15:52,222 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 13:15:52,223 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 13:15:52,223 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 13:15:52,223 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 13:15:52,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 13:15:52,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 13:15:52,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 13:15:52,224 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 13:15:52,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 13:15:52,224 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 13:15:52,224 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 13:15:52,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 13:15:52,224 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 13:15:52,224 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 13:15:52,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 13:15:52,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 13:15:52,225 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 13:15:52,225 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 13:15:52,225 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 13:15:52,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 13:15:52,226 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 13:15:52,226 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 13:15:52,226 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 13:15:52,226 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 13:15:52,226 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b7b562c6a835e9c81bbd978940c7270ae455ff1120bac33da414b2ebf27928d [2021-12-21 13:15:52,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 13:15:52,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 13:15:52,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 13:15:52,469 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 13:15:52,469 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 13:15:52,470 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c [2021-12-21 13:15:52,516 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79fa1453a/b186c3b48f9d47adb60ae9b4564756a3/FLAG6fa601238 [2021-12-21 13:15:52,892 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 13:15:52,893 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c [2021-12-21 13:15:52,917 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79fa1453a/b186c3b48f9d47adb60ae9b4564756a3/FLAG6fa601238 [2021-12-21 13:15:52,929 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79fa1453a/b186c3b48f9d47adb60ae9b4564756a3 [2021-12-21 13:15:52,932 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 13:15:52,934 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 13:15:52,936 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 13:15:52,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 13:15:52,939 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 13:15:52,939 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:15:52" (1/1) ... [2021-12-21 13:15:52,940 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e300acc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:52, skipping insertion in model container [2021-12-21 13:15:52,940 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:15:52" (1/1) ... [2021-12-21 13:15:52,944 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 13:15:52,967 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 13:15:53,156 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c[12494,12507] [2021-12-21 13:15:53,175 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 13:15:53,182 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 13:15:53,238 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c[12494,12507] [2021-12-21 13:15:53,254 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 13:15:53,275 INFO L208 MainTranslator]: Completed translation [2021-12-21 13:15:53,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:53 WrapperNode [2021-12-21 13:15:53,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 13:15:53,276 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 13:15:53,276 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 13:15:53,276 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 13:15:53,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:53" (1/1) ... [2021-12-21 13:15:53,301 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:53" (1/1) ... [2021-12-21 13:15:53,322 INFO L137 Inliner]: procedures = 51, calls = 150, calls flagged for inlining = 20, calls inlined = 16, statements flattened = 213 [2021-12-21 13:15:53,322 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 13:15:53,323 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 13:15:53,323 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 13:15:53,323 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 13:15:53,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:53" (1/1) ... [2021-12-21 13:15:53,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:53" (1/1) ... [2021-12-21 13:15:53,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:53" (1/1) ... [2021-12-21 13:15:53,332 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:53" (1/1) ... [2021-12-21 13:15:53,348 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:53" (1/1) ... [2021-12-21 13:15:53,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:53" (1/1) ... [2021-12-21 13:15:53,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:53" (1/1) ... [2021-12-21 13:15:53,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 13:15:53,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 13:15:53,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 13:15:53,359 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 13:15:53,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:53" (1/1) ... [2021-12-21 13:15:53,367 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 13:15:53,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 13:15:53,387 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 13:15:53,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 13:15:53,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 13:15:53,424 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-21 13:15:53,424 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-21 13:15:53,424 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-21 13:15:53,424 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-21 13:15:53,424 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-21 13:15:53,424 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-21 13:15:53,424 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-12-21 13:15:53,425 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-12-21 13:15:53,425 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-12-21 13:15:53,425 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-12-21 13:15:53,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 13:15:53,425 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-21 13:15:53,426 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-21 13:15:53,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 13:15:53,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 13:15:53,485 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 13:15:53,494 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 13:15:53,718 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 13:15:53,738 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 13:15:53,738 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-21 13:15:53,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:15:53 BoogieIcfgContainer [2021-12-21 13:15:53,739 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 13:15:53,740 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 13:15:53,740 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 13:15:53,743 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 13:15:53,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 01:15:52" (1/3) ... [2021-12-21 13:15:53,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@314764e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:15:53, skipping insertion in model container [2021-12-21 13:15:53,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:15:53" (2/3) ... [2021-12-21 13:15:53,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@314764e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:15:53, skipping insertion in model container [2021-12-21 13:15:53,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:15:53" (3/3) ... [2021-12-21 13:15:53,745 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product13.cil.c [2021-12-21 13:15:53,749 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 13:15:53,749 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 13:15:53,795 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 13:15:53,801 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 13:15:53,801 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 13:15:53,821 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 54 states have (on average 1.3888888888888888) internal successors, (75), 60 states have internal predecessors, (75), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2021-12-21 13:15:53,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-21 13:15:53,826 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:15:53,827 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:15:53,828 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:15:53,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:15:53,834 INFO L85 PathProgramCache]: Analyzing trace with hash -250715153, now seen corresponding path program 1 times [2021-12-21 13:15:53,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:15:53,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468529800] [2021-12-21 13:15:53,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:15:53,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:15:53,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:54,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:15:54,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:15:54,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468529800] [2021-12-21 13:15:54,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468529800] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:15:54,025 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:15:54,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 13:15:54,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387573381] [2021-12-21 13:15:54,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:15:54,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-21 13:15:54,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:15:54,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-21 13:15:54,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 13:15:54,053 INFO L87 Difference]: Start difference. First operand has 71 states, 54 states have (on average 1.3888888888888888) internal successors, (75), 60 states have internal predecessors, (75), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 13:15:54,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:15:54,086 INFO L93 Difference]: Finished difference Result 134 states and 181 transitions. [2021-12-21 13:15:54,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 13:15:54,088 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-12-21 13:15:54,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:15:54,095 INFO L225 Difference]: With dead ends: 134 [2021-12-21 13:15:54,095 INFO L226 Difference]: Without dead ends: 62 [2021-12-21 13:15:54,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 13:15:54,101 INFO L933 BasicCegarLoop]: 87 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, 87 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:15:54,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:15:54,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-12-21 13:15:54,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2021-12-21 13:15:54,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 47 states have (on average 1.297872340425532) internal successors, (61), 52 states have internal predecessors, (61), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-21 13:15:54,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 78 transitions. [2021-12-21 13:15:54,138 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 78 transitions. Word has length 19 [2021-12-21 13:15:54,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:15:54,138 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 78 transitions. [2021-12-21 13:15:54,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 13:15:54,139 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 78 transitions. [2021-12-21 13:15:54,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-12-21 13:15:54,143 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:15:54,143 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] [2021-12-21 13:15:54,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 13:15:54,144 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:15:54,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:15:54,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1134572943, now seen corresponding path program 1 times [2021-12-21 13:15:54,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:15:54,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759603272] [2021-12-21 13:15:54,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:15:54,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:15:54,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:54,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:15:54,215 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:15:54,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759603272] [2021-12-21 13:15:54,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759603272] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:15:54,215 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:15:54,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 13:15:54,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945197771] [2021-12-21 13:15:54,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:15:54,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 13:15:54,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:15:54,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 13:15:54,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 13:15:54,218 INFO L87 Difference]: Start difference. First operand 62 states and 78 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 13:15:54,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:15:54,230 INFO L93 Difference]: Finished difference Result 90 states and 112 transitions. [2021-12-21 13:15:54,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 13:15:54,230 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-12-21 13:15:54,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:15:54,231 INFO L225 Difference]: With dead ends: 90 [2021-12-21 13:15:54,231 INFO L226 Difference]: Without dead ends: 53 [2021-12-21 13:15:54,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 13:15:54,233 INFO L933 BasicCegarLoop]: 65 mSDtfsCounter, 12 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:15:54,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 114 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:15:54,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-12-21 13:15:54,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-12-21 13:15:54,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 46 states have internal predecessors, (54), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2021-12-21 13:15:54,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 66 transitions. [2021-12-21 13:15:54,239 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 66 transitions. Word has length 20 [2021-12-21 13:15:54,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:15:54,239 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 66 transitions. [2021-12-21 13:15:54,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 13:15:54,240 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 66 transitions. [2021-12-21 13:15:54,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-21 13:15:54,240 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:15:54,240 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 13:15:54,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 13:15:54,241 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:15:54,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:15:54,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1568040948, now seen corresponding path program 1 times [2021-12-21 13:15:54,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:15:54,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864015458] [2021-12-21 13:15:54,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:15:54,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:15:54,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:54,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:15:54,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:15:54,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864015458] [2021-12-21 13:15:54,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864015458] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:15:54,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:15:54,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 13:15:54,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997860263] [2021-12-21 13:15:54,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:15:54,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 13:15:54,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:15:54,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 13:15:54,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 13:15:54,300 INFO L87 Difference]: Start difference. First operand 53 states and 66 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 13:15:54,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:15:54,315 INFO L93 Difference]: Finished difference Result 99 states and 126 transitions. [2021-12-21 13:15:54,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 13:15:54,317 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-12-21 13:15:54,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:15:54,319 INFO L225 Difference]: With dead ends: 99 [2021-12-21 13:15:54,319 INFO L226 Difference]: Without dead ends: 53 [2021-12-21 13:15:54,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 13:15:54,323 INFO L933 BasicCegarLoop]: 64 mSDtfsCounter, 48 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:15:54,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 64 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:15:54,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-12-21 13:15:54,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-12-21 13:15:54,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 41 states have (on average 1.2926829268292683) internal successors, (53), 46 states have internal predecessors, (53), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2021-12-21 13:15:54,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 65 transitions. [2021-12-21 13:15:54,329 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 65 transitions. Word has length 24 [2021-12-21 13:15:54,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:15:54,329 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 65 transitions. [2021-12-21 13:15:54,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 13:15:54,329 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 65 transitions. [2021-12-21 13:15:54,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-21 13:15:54,330 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:15:54,330 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] [2021-12-21 13:15:54,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 13:15:54,330 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:15:54,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:15:54,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1290700286, now seen corresponding path program 1 times [2021-12-21 13:15:54,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:15:54,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993650722] [2021-12-21 13:15:54,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:15:54,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:15:54,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:54,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-21 13:15:54,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:54,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:15:54,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:15:54,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993650722] [2021-12-21 13:15:54,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993650722] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:15:54,378 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:15:54,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 13:15:54,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267885617] [2021-12-21 13:15:54,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:15:54,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 13:15:54,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:15:54,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 13:15:54,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 13:15:54,379 INFO L87 Difference]: Start difference. First operand 53 states and 65 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 13:15:54,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:15:54,417 INFO L93 Difference]: Finished difference Result 138 states and 178 transitions. [2021-12-21 13:15:54,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 13:15:54,418 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 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 29 [2021-12-21 13:15:54,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:15:54,419 INFO L225 Difference]: With dead ends: 138 [2021-12-21 13:15:54,419 INFO L226 Difference]: Without dead ends: 92 [2021-12-21 13:15:54,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-21 13:15:54,420 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 38 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:15:54,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 253 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:15:54,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-12-21 13:15:54,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2021-12-21 13:15:54,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 70 states have (on average 1.2857142857142858) internal successors, (90), 78 states have internal predecessors, (90), 12 states have call successors, (12), 10 states have call predecessors, (12), 9 states have return successors, (13), 9 states have call predecessors, (13), 12 states have call successors, (13) [2021-12-21 13:15:54,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 115 transitions. [2021-12-21 13:15:54,434 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 115 transitions. Word has length 29 [2021-12-21 13:15:54,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:15:54,435 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 115 transitions. [2021-12-21 13:15:54,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 13:15:54,435 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 115 transitions. [2021-12-21 13:15:54,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-21 13:15:54,438 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:15:54,438 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:15:54,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 13:15:54,438 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:15:54,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:15:54,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1148145597, now seen corresponding path program 1 times [2021-12-21 13:15:54,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:15:54,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742751964] [2021-12-21 13:15:54,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:15:54,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:15:54,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:54,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-21 13:15:54,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:54,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:15:54,498 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:15:54,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742751964] [2021-12-21 13:15:54,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742751964] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:15:54,498 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:15:54,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 13:15:54,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890886036] [2021-12-21 13:15:54,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:15:54,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 13:15:54,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:15:54,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 13:15:54,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 13:15:54,499 INFO L87 Difference]: Start difference. First operand 92 states and 115 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 13:15:54,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:15:54,518 INFO L93 Difference]: Finished difference Result 156 states and 199 transitions. [2021-12-21 13:15:54,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 13:15:54,520 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2021-12-21 13:15:54,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:15:54,521 INFO L225 Difference]: With dead ends: 156 [2021-12-21 13:15:54,521 INFO L226 Difference]: Without dead ends: 71 [2021-12-21 13:15:54,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 13:15:54,522 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 33 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:15:54,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 46 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:15:54,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-12-21 13:15:54,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-12-21 13:15:54,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 55 states have (on average 1.2363636363636363) internal successors, (68), 59 states have internal predecessors, (68), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-21 13:15:54,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 84 transitions. [2021-12-21 13:15:54,528 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 84 transitions. Word has length 31 [2021-12-21 13:15:54,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:15:54,528 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 84 transitions. [2021-12-21 13:15:54,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 13:15:54,528 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 84 transitions. [2021-12-21 13:15:54,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-12-21 13:15:54,529 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:15:54,529 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] [2021-12-21 13:15:54,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 13:15:54,529 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:15:54,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:15:54,529 INFO L85 PathProgramCache]: Analyzing trace with hash 809516028, now seen corresponding path program 1 times [2021-12-21 13:15:54,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:15:54,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420016530] [2021-12-21 13:15:54,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:15:54,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:15:54,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:54,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 13:15:54,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:54,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 13:15:54,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:15:54,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:15:54,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:15:54,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420016530] [2021-12-21 13:15:54,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420016530] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:15:54,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:15:54,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 13:15:54,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197353068] [2021-12-21 13:15:54,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:15:54,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 13:15:54,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:15:54,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 13:15:54,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 13:15:54,616 INFO L87 Difference]: Start difference. First operand 71 states and 84 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-21 13:15:54,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:15:54,684 INFO L93 Difference]: Finished difference Result 76 states and 89 transitions. [2021-12-21 13:15:54,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-21 13:15:54,685 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2021-12-21 13:15:54,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:15:54,685 INFO L225 Difference]: With dead ends: 76 [2021-12-21 13:15:54,685 INFO L226 Difference]: Without dead ends: 0 [2021-12-21 13:15:54,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-21 13:15:54,690 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 44 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:15:54,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 138 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:15:54,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-21 13:15:54,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-21 13:15:54,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 13:15:54,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-21 13:15:54,695 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2021-12-21 13:15:54,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:15:54,696 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 13:15:54,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-21 13:15:54,696 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-21 13:15:54,696 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-21 13:15:54,698 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-21 13:15:54,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-21 13:15:54,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-21 13:15:55,047 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 82 93) the Hoare annotation is: true [2021-12-21 13:15:55,048 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 82 93) no Hoare annotation was computed. [2021-12-21 13:15:55,048 INFO L858 garLoopResultBuilder]: For program point L86-1(lines 82 93) no Hoare annotation was computed. [2021-12-21 13:15:55,048 INFO L858 garLoopResultBuilder]: For program point L506(line 506) no Hoare annotation was computed. [2021-12-21 13:15:55,049 INFO L854 garLoopResultBuilder]: At program point L696(line 696) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 1 ~systemActive~0))) [2021-12-21 13:15:55,049 INFO L854 garLoopResultBuilder]: At program point L696-1(lines 677 701) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 1 ~systemActive~0))) [2021-12-21 13:15:55,049 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 645 668) no Hoare annotation was computed. [2021-12-21 13:15:55,049 INFO L854 garLoopResultBuilder]: At program point L131(lines 126 134) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (= |timeShift_getWaterLevel_#res#1| 1)) (or .cse0 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse1))) [2021-12-21 13:15:55,050 INFO L854 garLoopResultBuilder]: At program point L507(lines 502 509) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2021-12-21 13:15:55,050 INFO L858 garLoopResultBuilder]: For program point L656-1(lines 656 662) no Hoare annotation was computed. [2021-12-21 13:15:55,050 INFO L854 garLoopResultBuilder]: At program point L751(lines 746 754) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 0) (= |timeShift_isPumpRunning_#res#1| 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1))) [2021-12-21 13:15:55,050 INFO L858 garLoopResultBuilder]: For program point L685(lines 685 693) no Hoare annotation was computed. [2021-12-21 13:15:55,050 INFO L858 garLoopResultBuilder]: For program point L524(lines 524 530) no Hoare annotation was computed. [2021-12-21 13:15:55,051 INFO L858 garLoopResultBuilder]: For program point L681(lines 681 698) no Hoare annotation was computed. [2021-12-21 13:15:55,051 INFO L858 garLoopResultBuilder]: For program point L520(lines 520 533) no Hoare annotation was computed. [2021-12-21 13:15:55,051 INFO L854 garLoopResultBuilder]: At program point L520-1(lines 512 536) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse1) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and (= |timeShift___utac_acc__Specification4_spec__1_~tmp~3#1| 1) (= |timeShift_getWaterLevel_#res#1| 1))))) [2021-12-21 13:15:55,051 INFO L858 garLoopResultBuilder]: For program point L62(lines 62 66) no Hoare annotation was computed. [2021-12-21 13:15:55,052 INFO L854 garLoopResultBuilder]: At program point L62-2(lines 58 69) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2021-12-21 13:15:55,052 INFO L858 garLoopResultBuilder]: For program point L649-1(lines 648 667) no Hoare annotation was computed. [2021-12-21 13:15:55,052 INFO L854 garLoopResultBuilder]: At program point L732(lines 727 734) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2021-12-21 13:15:55,052 INFO L854 garLoopResultBuilder]: At program point L691(line 691) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2021-12-21 13:15:55,052 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 645 668) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 1 ~systemActive~0))) [2021-12-21 13:15:55,053 INFO L854 garLoopResultBuilder]: At program point L683(line 683) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2021-12-21 13:15:55,053 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 645 668) no Hoare annotation was computed. [2021-12-21 13:15:55,053 INFO L858 garLoopResultBuilder]: For program point L683-1(line 683) no Hoare annotation was computed. [2021-12-21 13:15:55,053 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 506) no Hoare annotation was computed. [2021-12-21 13:15:55,053 INFO L858 garLoopResultBuilder]: For program point L546-1(line 546) no Hoare annotation was computed. [2021-12-21 13:15:55,053 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 540 569) no Hoare annotation was computed. [2021-12-21 13:15:55,053 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 540 569) the Hoare annotation is: true [2021-12-21 13:15:55,053 INFO L861 garLoopResultBuilder]: At program point L565(lines 540 569) the Hoare annotation is: true [2021-12-21 13:15:55,053 INFO L858 garLoopResultBuilder]: For program point L561(line 561) no Hoare annotation was computed. [2021-12-21 13:15:55,053 INFO L858 garLoopResultBuilder]: For program point L554(lines 554 558) no Hoare annotation was computed. [2021-12-21 13:15:55,053 INFO L861 garLoopResultBuilder]: At program point L554-1(lines 554 558) the Hoare annotation is: true [2021-12-21 13:15:55,054 INFO L858 garLoopResultBuilder]: For program point L551(line 551) no Hoare annotation was computed. [2021-12-21 13:15:55,054 INFO L861 garLoopResultBuilder]: At program point L550-2(lines 550 564) the Hoare annotation is: true [2021-12-21 13:15:55,054 INFO L861 garLoopResultBuilder]: At program point L546(line 546) the Hoare annotation is: true [2021-12-21 13:15:55,054 INFO L858 garLoopResultBuilder]: For program point L832(lines 832 843) no Hoare annotation was computed. [2021-12-21 13:15:55,054 INFO L854 garLoopResultBuilder]: At program point L824(line 824) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-12-21 13:15:55,054 INFO L858 garLoopResultBuilder]: For program point L626(lines 626 633) no Hoare annotation was computed. [2021-12-21 13:15:55,054 INFO L858 garLoopResultBuilder]: For program point L626-2(lines 626 633) no Hoare annotation was computed. [2021-12-21 13:15:55,054 INFO L854 garLoopResultBuilder]: At program point L845(lines 802 847) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-12-21 13:15:55,054 INFO L858 garLoopResultBuilder]: For program point L812(lines 812 818) no Hoare annotation was computed. [2021-12-21 13:15:55,054 INFO L858 garLoopResultBuilder]: For program point L812-1(lines 812 818) no Hoare annotation was computed. [2021-12-21 13:15:55,054 INFO L858 garLoopResultBuilder]: For program point L804(lines 804 808) no Hoare annotation was computed. [2021-12-21 13:15:55,054 INFO L861 garLoopResultBuilder]: At program point L610(lines 603 612) the Hoare annotation is: true [2021-12-21 13:15:55,054 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-21 13:15:55,054 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-21 13:15:55,054 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-21 13:15:55,055 INFO L861 garLoopResultBuilder]: At program point L635(lines 616 638) the Hoare annotation is: true [2021-12-21 13:15:55,055 INFO L854 garLoopResultBuilder]: At program point L887(lines 882 890) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-21 13:15:55,055 INFO L854 garLoopResultBuilder]: At program point L879(lines 875 881) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-21 13:15:55,055 INFO L858 garLoopResultBuilder]: For program point L838(lines 838 842) no Hoare annotation was computed. [2021-12-21 13:15:55,055 INFO L854 garLoopResultBuilder]: At program point L838-2(lines 832 843) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-12-21 13:15:55,055 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-21 13:15:55,056 INFO L854 garLoopResultBuilder]: At program point L599(lines 595 601) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-21 13:15:55,056 INFO L858 garLoopResultBuilder]: For program point L822(lines 822 828) no Hoare annotation was computed. [2021-12-21 13:15:55,056 INFO L858 garLoopResultBuilder]: For program point L822-1(lines 822 828) no Hoare annotation was computed. [2021-12-21 13:15:55,056 INFO L861 garLoopResultBuilder]: At program point L851(lines 792 855) the Hoare annotation is: true [2021-12-21 13:15:55,056 INFO L854 garLoopResultBuilder]: At program point L814(line 814) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-12-21 13:15:55,057 INFO L854 garLoopResultBuilder]: At program point L872(lines 868 874) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-21 13:15:55,058 INFO L854 garLoopResultBuilder]: At program point L848(lines 801 849) the Hoare annotation is: false [2021-12-21 13:15:55,058 INFO L858 garLoopResultBuilder]: For program point L803(lines 802 847) no Hoare annotation was computed. [2021-12-21 13:15:55,058 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 70 81) no Hoare annotation was computed. [2021-12-21 13:15:55,058 INFO L858 garLoopResultBuilder]: For program point L74-1(lines 70 81) no Hoare annotation was computed. [2021-12-21 13:15:55,058 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 70 81) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (= 1 ~systemActive~0)) (= |old(~waterLevel~0)| ~waterLevel~0)) [2021-12-21 13:15:55,058 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 669 675) no Hoare annotation was computed. [2021-12-21 13:15:55,058 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryFINAL(lines 669 675) the Hoare annotation is: true [2021-12-21 13:15:55,059 INFO L861 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 735 745) the Hoare annotation is: true [2021-12-21 13:15:55,062 INFO L858 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 735 745) no Hoare annotation was computed. [2021-12-21 13:15:55,062 INFO L858 garLoopResultBuilder]: For program point isMethaneAlarmFINAL(lines 735 745) no Hoare annotation was computed. [2021-12-21 13:15:55,062 INFO L861 garLoopResultBuilder]: At program point L99(lines 94 102) the Hoare annotation is: true [2021-12-21 13:15:55,065 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-12-21 13:15:55,068 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-21 13:15:55,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 01:15:55 BoogieIcfgContainer [2021-12-21 13:15:55,093 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-21 13:15:55,093 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 13:15:55,093 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 13:15:55,093 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 13:15:55,094 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:15:53" (3/4) ... [2021-12-21 13:15:55,096 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-21 13:15:55,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-12-21 13:15:55,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-12-21 13:15:55,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-12-21 13:15:55,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-12-21 13:15:55,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2021-12-21 13:15:55,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2021-12-21 13:15:55,112 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2021-12-21 13:15:55,113 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-12-21 13:15:55,113 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-21 13:15:55,114 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-21 13:15:55,114 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-21 13:15:55,114 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-21 13:15:55,114 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-21 13:15:55,131 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || !(1 == systemActive) [2021-12-21 13:15:55,138 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive) [2021-12-21 13:15:55,139 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || \result == 1) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) [2021-12-21 13:15:55,140 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || !(1 == systemActive) [2021-12-21 13:15:55,140 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (tmp == 1 && \result == 1)) [2021-12-21 13:15:55,140 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) [2021-12-21 13:15:55,140 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || !(1 == systemActive) [2021-12-21 13:15:55,163 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-21 13:15:55,163 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 13:15:55,164 INFO L158 Benchmark]: Toolchain (without parser) took 2230.12ms. Allocated memory was 81.8MB in the beginning and 136.3MB in the end (delta: 54.5MB). Free memory was 49.2MB in the beginning and 71.4MB in the end (delta: -22.3MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2021-12-21 13:15:55,164 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 81.8MB. Free memory was 52.7MB in the beginning and 52.7MB in the end (delta: 26.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 13:15:55,164 INFO L158 Benchmark]: CACSL2BoogieTranslator took 339.17ms. Allocated memory was 81.8MB in the beginning and 104.9MB in the end (delta: 23.1MB). Free memory was 49.0MB in the beginning and 73.4MB in the end (delta: -24.4MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2021-12-21 13:15:55,164 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.46ms. Allocated memory is still 104.9MB. Free memory was 73.4MB in the beginning and 71.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 13:15:55,164 INFO L158 Benchmark]: Boogie Preprocessor took 34.62ms. Allocated memory is still 104.9MB. Free memory was 71.3MB in the beginning and 70.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 13:15:55,165 INFO L158 Benchmark]: RCFGBuilder took 381.08ms. Allocated memory is still 104.9MB. Free memory was 69.6MB in the beginning and 81.8MB in the end (delta: -12.3MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. [2021-12-21 13:15:55,165 INFO L158 Benchmark]: TraceAbstraction took 1352.51ms. Allocated memory was 104.9MB in the beginning and 136.3MB in the end (delta: 31.5MB). Free memory was 81.4MB in the beginning and 77.1MB in the end (delta: 4.2MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. [2021-12-21 13:15:55,165 INFO L158 Benchmark]: Witness Printer took 70.12ms. Allocated memory is still 136.3MB. Free memory was 77.1MB in the beginning and 71.4MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-21 13:15:55,166 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 81.8MB. Free memory was 52.7MB in the beginning and 52.7MB in the end (delta: 26.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 339.17ms. Allocated memory was 81.8MB in the beginning and 104.9MB in the end (delta: 23.1MB). Free memory was 49.0MB in the beginning and 73.4MB in the end (delta: -24.4MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.46ms. Allocated memory is still 104.9MB. Free memory was 73.4MB in the beginning and 71.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.62ms. Allocated memory is still 104.9MB. Free memory was 71.3MB in the beginning and 70.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 381.08ms. Allocated memory is still 104.9MB. Free memory was 69.6MB in the beginning and 81.8MB in the end (delta: -12.3MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1352.51ms. Allocated memory was 104.9MB in the beginning and 136.3MB in the end (delta: 31.5MB). Free memory was 81.4MB in the beginning and 77.1MB in the end (delta: 4.2MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. * Witness Printer took 70.12ms. Allocated memory is still 136.3MB. Free memory was 77.1MB in the beginning and 71.4MB in the end (delta: 5.7MB). 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: 506]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 71 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 179 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 175 mSDsluCounter, 702 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 331 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 61 IncrementalHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 371 mSDtfsCounter, 61 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 33 LocationsWithAnnotation, 183 PreInvPairs, 205 NumberOfFragments, 301 HoareAnnotationTreeSize, 183 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 33 FomulaSimplificationsInter, 380 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 156 NumberOfCodeBlocks, 156 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 150 ConstructedInterpolants, 0 QuantifiedInterpolants, 322 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 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: 550]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 603]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 677]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive) - InvariantResult [Line: 875]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || \result == 1) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) - InvariantResult [Line: 502]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || !(1 == systemActive) - InvariantResult [Line: 882]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 512]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (tmp == 1 && \result == 1)) - InvariantResult [Line: 595]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 727]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || !(1 == systemActive) - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || !(1 == systemActive) - InvariantResult [Line: 746]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) - InvariantResult [Line: 540]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 801]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 792]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 94]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 868]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 802]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && splverifierCounter == 0 RESULT: Ultimate proved your program to be correct! [2021-12-21 13:15:55,199 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE