./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product45.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product45.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 9a8ef44eebf77bb9089ba7256f54c924b643d97224560b14ff4a2b7df3dcc9e0 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 13:14:07,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 13:14:07,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 13:14:07,314 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 13:14:07,314 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 13:14:07,317 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 13:14:07,318 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 13:14:07,320 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 13:14:07,321 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 13:14:07,324 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 13:14:07,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 13:14:07,325 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 13:14:07,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 13:14:07,327 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 13:14:07,328 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 13:14:07,330 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 13:14:07,331 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 13:14:07,332 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 13:14:07,333 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 13:14:07,337 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 13:14:07,338 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 13:14:07,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 13:14:07,340 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 13:14:07,341 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 13:14:07,345 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 13:14:07,345 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 13:14:07,345 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 13:14:07,346 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 13:14:07,347 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 13:14:07,347 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 13:14:07,348 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 13:14:07,348 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 13:14:07,349 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 13:14:07,350 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 13:14:07,351 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 13:14:07,351 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 13:14:07,352 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 13:14:07,352 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 13:14:07,352 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 13:14:07,353 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 13:14:07,353 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 13:14:07,354 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 13:14:07,377 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 13:14:07,377 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 13:14:07,378 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 13:14:07,378 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 13:14:07,378 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 13:14:07,378 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 13:14:07,379 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 13:14:07,379 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 13:14:07,379 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 13:14:07,379 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 13:14:07,380 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 13:14:07,380 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 13:14:07,380 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 13:14:07,380 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 13:14:07,381 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 13:14:07,381 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 13:14:07,381 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 13:14:07,381 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 13:14:07,381 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 13:14:07,381 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 13:14:07,381 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 13:14:07,382 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 13:14:07,382 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 13:14:07,382 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 13:14:07,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 13:14:07,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 13:14:07,382 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 13:14:07,383 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 13:14:07,383 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 13:14:07,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 13:14:07,384 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 13:14:07,384 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 13:14:07,384 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 13:14:07,384 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 13:14:07,384 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a8ef44eebf77bb9089ba7256f54c924b643d97224560b14ff4a2b7df3dcc9e0 [2021-12-21 13:14:07,533 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 13:14:07,555 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 13:14:07,556 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 13:14:07,557 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 13:14:07,558 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 13:14:07,558 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product45.cil.c [2021-12-21 13:14:07,599 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77cbc0b5c/c41ac1b421a44d5daad813ca2bf42f21/FLAG26e2cfe48 [2021-12-21 13:14:08,023 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 13:14:08,024 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product45.cil.c [2021-12-21 13:14:08,037 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77cbc0b5c/c41ac1b421a44d5daad813ca2bf42f21/FLAG26e2cfe48 [2021-12-21 13:14:08,050 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77cbc0b5c/c41ac1b421a44d5daad813ca2bf42f21 [2021-12-21 13:14:08,052 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 13:14:08,054 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 13:14:08,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 13:14:08,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 13:14:08,059 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 13:14:08,060 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:14:08" (1/1) ... [2021-12-21 13:14:08,061 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e1eb0a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:08, skipping insertion in model container [2021-12-21 13:14:08,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:14:08" (1/1) ... [2021-12-21 13:14:08,067 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 13:14:08,106 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 13:14:08,286 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product45.cil.c[3064,3077] [2021-12-21 13:14:08,360 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 13:14:08,365 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 13:14:08,380 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product45.cil.c[3064,3077] [2021-12-21 13:14:08,417 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 13:14:08,432 INFO L208 MainTranslator]: Completed translation [2021-12-21 13:14:08,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:08 WrapperNode [2021-12-21 13:14:08,433 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 13:14:08,434 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 13:14:08,434 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 13:14:08,434 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 13:14:08,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:08" (1/1) ... [2021-12-21 13:14:08,453 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:08" (1/1) ... [2021-12-21 13:14:08,484 INFO L137 Inliner]: procedures = 54, calls = 155, calls flagged for inlining = 21, calls inlined = 18, statements flattened = 238 [2021-12-21 13:14:08,485 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 13:14:08,486 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 13:14:08,486 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 13:14:08,486 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 13:14:08,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:08" (1/1) ... [2021-12-21 13:14:08,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:08" (1/1) ... [2021-12-21 13:14:08,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:08" (1/1) ... [2021-12-21 13:14:08,505 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:08" (1/1) ... [2021-12-21 13:14:08,508 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:08" (1/1) ... [2021-12-21 13:14:08,519 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:08" (1/1) ... [2021-12-21 13:14:08,524 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:08" (1/1) ... [2021-12-21 13:14:08,526 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 13:14:08,527 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 13:14:08,527 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 13:14:08,527 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 13:14:08,529 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:08" (1/1) ... [2021-12-21 13:14:08,534 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 13:14:08,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 13:14:08,553 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 13:14:08,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 13:14:08,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 13:14:08,590 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-21 13:14:08,590 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-21 13:14:08,590 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-21 13:14:08,590 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-21 13:14:08,590 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-21 13:14:08,590 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-21 13:14:08,590 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-12-21 13:14:08,591 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-12-21 13:14:08,591 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-21 13:14:08,591 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-21 13:14:08,591 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-12-21 13:14:08,591 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-12-21 13:14:08,591 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-12-21 13:14:08,591 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-12-21 13:14:08,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 13:14:08,591 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-21 13:14:08,592 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-21 13:14:08,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 13:14:08,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 13:14:08,659 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 13:14:08,661 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 13:14:08,927 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 13:14:08,933 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 13:14:08,934 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-21 13:14:08,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:14:08 BoogieIcfgContainer [2021-12-21 13:14:08,936 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 13:14:08,937 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 13:14:08,937 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 13:14:08,940 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 13:14:08,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 01:14:08" (1/3) ... [2021-12-21 13:14:08,940 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b029909 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:14:08, skipping insertion in model container [2021-12-21 13:14:08,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:08" (2/3) ... [2021-12-21 13:14:08,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b029909 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:14:08, skipping insertion in model container [2021-12-21 13:14:08,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:14:08" (3/3) ... [2021-12-21 13:14:08,942 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product45.cil.c [2021-12-21 13:14:08,946 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 13:14:08,947 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 13:14:08,977 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 13:14:08,982 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 13:14:08,983 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 13:14:08,997 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 69 states have (on average 1.3768115942028984) internal successors, (95), 77 states have internal predecessors, (95), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2021-12-21 13:14:09,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-21 13:14:09,002 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:14:09,002 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:14:09,002 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:14:09,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:14:09,006 INFO L85 PathProgramCache]: Analyzing trace with hash 775812870, now seen corresponding path program 1 times [2021-12-21 13:14:09,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:14:09,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3391697] [2021-12-21 13:14:09,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:09,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:14:09,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:09,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 13:14:09,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:09,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:14:09,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:14:09,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3391697] [2021-12-21 13:14:09,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3391697] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:14:09,169 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:14:09,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 13:14:09,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782317199] [2021-12-21 13:14:09,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:14:09,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-21 13:14:09,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:14:09,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-21 13:14:09,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 13:14:09,196 INFO L87 Difference]: Start difference. First operand has 93 states, 69 states have (on average 1.3768115942028984) internal successors, (95), 77 states have internal predecessors, (95), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 13:14:09,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:14:09,219 INFO L93 Difference]: Finished difference Result 178 states and 241 transitions. [2021-12-21 13:14:09,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 13:14:09,221 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2021-12-21 13:14:09,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:14:09,226 INFO L225 Difference]: With dead ends: 178 [2021-12-21 13:14:09,226 INFO L226 Difference]: Without dead ends: 84 [2021-12-21 13:14:09,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 13:14:09,231 INFO L933 BasicCegarLoop]: 117 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, 117 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:14:09,232 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:14:09,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-12-21 13:14:09,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2021-12-21 13:14:09,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 62 states have (on average 1.3064516129032258) internal successors, (81), 69 states have internal predecessors, (81), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2021-12-21 13:14:09,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 108 transitions. [2021-12-21 13:14:09,258 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 108 transitions. Word has length 23 [2021-12-21 13:14:09,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:14:09,258 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 108 transitions. [2021-12-21 13:14:09,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 13:14:09,259 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 108 transitions. [2021-12-21 13:14:09,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-21 13:14:09,260 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:14:09,260 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:14:09,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 13:14:09,261 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:14:09,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:14:09,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1120816717, now seen corresponding path program 1 times [2021-12-21 13:14:09,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:14:09,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764656139] [2021-12-21 13:14:09,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:09,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:14:09,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:09,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-21 13:14:09,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:09,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:14:09,337 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:14:09,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764656139] [2021-12-21 13:14:09,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764656139] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:14:09,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:14:09,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 13:14:09,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517835509] [2021-12-21 13:14:09,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:14:09,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 13:14:09,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:14:09,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 13:14:09,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 13:14:09,340 INFO L87 Difference]: Start difference. First operand 84 states and 108 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 13:14:09,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:14:09,361 INFO L93 Difference]: Finished difference Result 134 states and 172 transitions. [2021-12-21 13:14:09,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 13:14:09,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2021-12-21 13:14:09,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:14:09,364 INFO L225 Difference]: With dead ends: 134 [2021-12-21 13:14:09,365 INFO L226 Difference]: Without dead ends: 75 [2021-12-21 13:14:09,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 13:14:09,366 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 12 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:14:09,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 174 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:14:09,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-12-21 13:14:09,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2021-12-21 13:14:09,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 56 states have (on average 1.3214285714285714) internal successors, (74), 63 states have internal predecessors, (74), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2021-12-21 13:14:09,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 96 transitions. [2021-12-21 13:14:09,378 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 96 transitions. Word has length 24 [2021-12-21 13:14:09,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:14:09,378 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 96 transitions. [2021-12-21 13:14:09,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 13:14:09,400 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 96 transitions. [2021-12-21 13:14:09,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-21 13:14:09,401 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:14:09,407 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:14:09,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 13:14:09,407 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:14:09,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:14:09,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1182721273, now seen corresponding path program 1 times [2021-12-21 13:14:09,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:14:09,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854604054] [2021-12-21 13:14:09,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:09,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:14:09,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:09,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-21 13:14:09,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:09,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:14:09,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:14:09,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854604054] [2021-12-21 13:14:09,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854604054] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:14:09,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:14:09,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 13:14:09,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314471605] [2021-12-21 13:14:09,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:14:09,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 13:14:09,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:14:09,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 13:14:09,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 13:14:09,478 INFO L87 Difference]: Start difference. First operand 75 states and 96 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 13:14:09,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:14:09,489 INFO L93 Difference]: Finished difference Result 143 states and 186 transitions. [2021-12-21 13:14:09,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 13:14:09,504 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2021-12-21 13:14:09,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:14:09,505 INFO L225 Difference]: With dead ends: 143 [2021-12-21 13:14:09,505 INFO L226 Difference]: Without dead ends: 75 [2021-12-21 13:14:09,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 13:14:09,506 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 78 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:14:09,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 94 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:14:09,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-12-21 13:14:09,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2021-12-21 13:14:09,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 56 states have (on average 1.3035714285714286) internal successors, (73), 63 states have internal predecessors, (73), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2021-12-21 13:14:09,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 95 transitions. [2021-12-21 13:14:09,516 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 95 transitions. Word has length 28 [2021-12-21 13:14:09,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:14:09,517 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 95 transitions. [2021-12-21 13:14:09,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 13:14:09,517 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 95 transitions. [2021-12-21 13:14:09,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-12-21 13:14:09,518 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:14:09,519 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:14:09,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 13:14:09,519 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:14:09,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:14:09,519 INFO L85 PathProgramCache]: Analyzing trace with hash 2028009394, now seen corresponding path program 1 times [2021-12-21 13:14:09,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:14:09,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263615686] [2021-12-21 13:14:09,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:09,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:14:09,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:09,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-21 13:14:09,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:09,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 13:14:09,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:09,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-21 13:14:09,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:09,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:14:09,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:14:09,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263615686] [2021-12-21 13:14:09,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263615686] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:14:09,618 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:14:09,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 13:14:09,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211352837] [2021-12-21 13:14:09,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:14:09,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 13:14:09,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:14:09,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 13:14:09,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 13:14:09,621 INFO L87 Difference]: Start difference. First operand 75 states and 95 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-21 13:14:09,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:14:09,797 INFO L93 Difference]: Finished difference Result 220 states and 277 transitions. [2021-12-21 13:14:09,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 13:14:09,798 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 38 [2021-12-21 13:14:09,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:14:09,799 INFO L225 Difference]: With dead ends: 220 [2021-12-21 13:14:09,799 INFO L226 Difference]: Without dead ends: 152 [2021-12-21 13:14:09,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-21 13:14:09,801 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 169 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 13:14:09,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 282 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 13:14:09,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-12-21 13:14:09,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 146. [2021-12-21 13:14:09,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 109 states have (on average 1.2477064220183487) internal successors, (136), 117 states have internal predecessors, (136), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2021-12-21 13:14:09,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 177 transitions. [2021-12-21 13:14:09,814 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 177 transitions. Word has length 38 [2021-12-21 13:14:09,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:14:09,814 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 177 transitions. [2021-12-21 13:14:09,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-21 13:14:09,814 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 177 transitions. [2021-12-21 13:14:09,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-21 13:14:09,815 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:14:09,815 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:14:09,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 13:14:09,816 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:14:09,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:14:09,816 INFO L85 PathProgramCache]: Analyzing trace with hash 300684586, now seen corresponding path program 1 times [2021-12-21 13:14:09,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:14:09,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20120813] [2021-12-21 13:14:09,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:09,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:14:09,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:09,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-21 13:14:09,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:09,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:14:09,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:09,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-21 13:14:09,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:09,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:14:09,907 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:14:09,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20120813] [2021-12-21 13:14:09,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20120813] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:14:09,911 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:14:09,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 13:14:09,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251735243] [2021-12-21 13:14:09,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:14:09,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 13:14:09,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:14:09,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 13:14:09,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-21 13:14:09,912 INFO L87 Difference]: Start difference. First operand 146 states and 177 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-21 13:14:10,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:14:10,137 INFO L93 Difference]: Finished difference Result 428 states and 529 transitions. [2021-12-21 13:14:10,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-21 13:14:10,137 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 44 [2021-12-21 13:14:10,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:14:10,143 INFO L225 Difference]: With dead ends: 428 [2021-12-21 13:14:10,143 INFO L226 Difference]: Without dead ends: 289 [2021-12-21 13:14:10,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2021-12-21 13:14:10,146 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 146 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 13:14:10,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 413 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 13:14:10,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2021-12-21 13:14:10,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 275. [2021-12-21 13:14:10,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 202 states have (on average 1.2178217821782178) internal successors, (246), 217 states have internal predecessors, (246), 36 states have call successors, (36), 30 states have call predecessors, (36), 36 states have return successors, (48), 38 states have call predecessors, (48), 36 states have call successors, (48) [2021-12-21 13:14:10,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 330 transitions. [2021-12-21 13:14:10,196 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 330 transitions. Word has length 44 [2021-12-21 13:14:10,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:14:10,197 INFO L470 AbstractCegarLoop]: Abstraction has 275 states and 330 transitions. [2021-12-21 13:14:10,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-21 13:14:10,197 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 330 transitions. [2021-12-21 13:14:10,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-21 13:14:10,201 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:14:10,201 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:14:10,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 13:14:10,202 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:14:10,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:14:10,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1931130382, now seen corresponding path program 1 times [2021-12-21 13:14:10,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:14:10,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989428636] [2021-12-21 13:14:10,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:10,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:14:10,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:10,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 13:14:10,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:10,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 13:14:10,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:10,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:14:10,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:10,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-21 13:14:10,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:10,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:14:10,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:14:10,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989428636] [2021-12-21 13:14:10,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989428636] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:14:10,299 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:14:10,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 13:14:10,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440311684] [2021-12-21 13:14:10,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:14:10,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 13:14:10,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:14:10,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 13:14:10,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-21 13:14:10,301 INFO L87 Difference]: Start difference. First operand 275 states and 330 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-21 13:14:10,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:14:10,570 INFO L93 Difference]: Finished difference Result 291 states and 346 transitions. [2021-12-21 13:14:10,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-21 13:14:10,570 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 48 [2021-12-21 13:14:10,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:14:10,572 INFO L225 Difference]: With dead ends: 291 [2021-12-21 13:14:10,572 INFO L226 Difference]: Without dead ends: 289 [2021-12-21 13:14:10,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2021-12-21 13:14:10,574 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 183 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-21 13:14:10,574 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 237 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-21 13:14:10,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2021-12-21 13:14:10,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 275. [2021-12-21 13:14:10,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 202 states have (on average 1.2079207920792079) internal successors, (244), 217 states have internal predecessors, (244), 36 states have call successors, (36), 30 states have call predecessors, (36), 36 states have return successors, (48), 38 states have call predecessors, (48), 36 states have call successors, (48) [2021-12-21 13:14:10,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 328 transitions. [2021-12-21 13:14:10,605 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 328 transitions. Word has length 48 [2021-12-21 13:14:10,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:14:10,605 INFO L470 AbstractCegarLoop]: Abstraction has 275 states and 328 transitions. [2021-12-21 13:14:10,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-21 13:14:10,606 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 328 transitions. [2021-12-21 13:14:10,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-21 13:14:10,607 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:14:10,607 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:14:10,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-21 13:14:10,607 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:14:10,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:14:10,608 INFO L85 PathProgramCache]: Analyzing trace with hash -420556161, now seen corresponding path program 1 times [2021-12-21 13:14:10,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:14:10,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575273232] [2021-12-21 13:14:10,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:10,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:14:10,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:10,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 13:14:10,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:10,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 13:14:10,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:10,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:14:10,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:10,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:14:10,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:10,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-21 13:14:10,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:10,697 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-21 13:14:10,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:14:10,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575273232] [2021-12-21 13:14:10,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575273232] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:14:10,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:14:10,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 13:14:10,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564347590] [2021-12-21 13:14:10,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:14:10,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 13:14:10,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:14:10,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 13:14:10,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-21 13:14:10,701 INFO L87 Difference]: Start difference. First operand 275 states and 328 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-21 13:14:10,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:14:10,876 INFO L93 Difference]: Finished difference Result 561 states and 682 transitions. [2021-12-21 13:14:10,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-21 13:14:10,876 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 58 [2021-12-21 13:14:10,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:14:10,877 INFO L225 Difference]: With dead ends: 561 [2021-12-21 13:14:10,878 INFO L226 Difference]: Without dead ends: 293 [2021-12-21 13:14:10,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-21 13:14:10,879 INFO L933 BasicCegarLoop]: 85 mSDtfsCounter, 118 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 13:14:10,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 230 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 13:14:10,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2021-12-21 13:14:10,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 281. [2021-12-21 13:14:10,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 208 states have (on average 1.2019230769230769) internal successors, (250), 223 states have internal predecessors, (250), 36 states have call successors, (36), 30 states have call predecessors, (36), 36 states have return successors, (48), 38 states have call predecessors, (48), 36 states have call successors, (48) [2021-12-21 13:14:10,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 334 transitions. [2021-12-21 13:14:10,896 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 334 transitions. Word has length 58 [2021-12-21 13:14:10,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:14:10,896 INFO L470 AbstractCegarLoop]: Abstraction has 281 states and 334 transitions. [2021-12-21 13:14:10,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-21 13:14:10,897 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 334 transitions. [2021-12-21 13:14:10,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-21 13:14:10,898 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:14:10,898 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:14:10,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-21 13:14:10,898 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:14:10,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:14:10,898 INFO L85 PathProgramCache]: Analyzing trace with hash -397923907, now seen corresponding path program 1 times [2021-12-21 13:14:10,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:14:10,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196393909] [2021-12-21 13:14:10,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:10,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:14:10,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:10,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 13:14:10,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:10,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 13:14:10,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:10,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:14:10,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:10,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:14:10,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:10,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-21 13:14:10,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:10,995 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-21 13:14:10,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:14:10,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196393909] [2021-12-21 13:14:10,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196393909] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:14:10,995 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:14:10,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 13:14:10,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120451258] [2021-12-21 13:14:10,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:14:10,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 13:14:10,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:14:10,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 13:14:10,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-21 13:14:10,997 INFO L87 Difference]: Start difference. First operand 281 states and 334 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2021-12-21 13:14:11,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:14:11,143 INFO L93 Difference]: Finished difference Result 573 states and 694 transitions. [2021-12-21 13:14:11,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 13:14:11,143 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 58 [2021-12-21 13:14:11,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:14:11,146 INFO L225 Difference]: With dead ends: 573 [2021-12-21 13:14:11,146 INFO L226 Difference]: Without dead ends: 299 [2021-12-21 13:14:11,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-21 13:14:11,148 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 191 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 13:14:11,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 194 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 13:14:11,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2021-12-21 13:14:11,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 285. [2021-12-21 13:14:11,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 212 states have (on average 1.1981132075471699) internal successors, (254), 227 states have internal predecessors, (254), 36 states have call successors, (36), 30 states have call predecessors, (36), 36 states have return successors, (48), 38 states have call predecessors, (48), 36 states have call successors, (48) [2021-12-21 13:14:11,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 338 transitions. [2021-12-21 13:14:11,172 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 338 transitions. Word has length 58 [2021-12-21 13:14:11,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:14:11,175 INFO L470 AbstractCegarLoop]: Abstraction has 285 states and 338 transitions. [2021-12-21 13:14:11,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2021-12-21 13:14:11,175 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 338 transitions. [2021-12-21 13:14:11,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-21 13:14:11,176 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:14:11,177 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:14:11,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-21 13:14:11,177 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:14:11,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:14:11,178 INFO L85 PathProgramCache]: Analyzing trace with hash -123164293, now seen corresponding path program 1 times [2021-12-21 13:14:11,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:14:11,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200641102] [2021-12-21 13:14:11,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:11,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:14:11,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:11,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 13:14:11,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:11,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 13:14:11,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:11,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:14:11,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:11,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:14:11,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:11,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-21 13:14:11,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:11,271 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-21 13:14:11,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:14:11,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200641102] [2021-12-21 13:14:11,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200641102] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:14:11,272 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:14:11,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 13:14:11,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614374245] [2021-12-21 13:14:11,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:14:11,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 13:14:11,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:14:11,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 13:14:11,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 13:14:11,274 INFO L87 Difference]: Start difference. First operand 285 states and 338 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2021-12-21 13:14:11,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:14:11,490 INFO L93 Difference]: Finished difference Result 785 states and 984 transitions. [2021-12-21 13:14:11,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-21 13:14:11,490 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 58 [2021-12-21 13:14:11,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:14:11,494 INFO L225 Difference]: With dead ends: 785 [2021-12-21 13:14:11,494 INFO L226 Difference]: Without dead ends: 507 [2021-12-21 13:14:11,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-12-21 13:14:11,496 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 289 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-21 13:14:11,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [291 Valid, 243 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-21 13:14:11,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2021-12-21 13:14:11,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 505. [2021-12-21 13:14:11,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 376 states have (on average 1.1941489361702127) internal successors, (449), 399 states have internal predecessors, (449), 66 states have call successors, (66), 60 states have call predecessors, (66), 62 states have return successors, (101), 66 states have call predecessors, (101), 66 states have call successors, (101) [2021-12-21 13:14:11,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 616 transitions. [2021-12-21 13:14:11,539 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 616 transitions. Word has length 58 [2021-12-21 13:14:11,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:14:11,539 INFO L470 AbstractCegarLoop]: Abstraction has 505 states and 616 transitions. [2021-12-21 13:14:11,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2021-12-21 13:14:11,539 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 616 transitions. [2021-12-21 13:14:11,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-12-21 13:14:11,541 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:14:11,541 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:14:11,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-21 13:14:11,541 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:14:11,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:14:11,542 INFO L85 PathProgramCache]: Analyzing trace with hash -2137470559, now seen corresponding path program 1 times [2021-12-21 13:14:11,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:14:11,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575616703] [2021-12-21 13:14:11,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:11,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:14:11,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:11,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 13:14:11,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:11,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-21 13:14:11,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:11,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-21 13:14:11,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:11,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:14:11,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:11,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:14:11,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:11,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 13:14:11,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:11,647 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-21 13:14:11,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:14:11,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575616703] [2021-12-21 13:14:11,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575616703] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 13:14:11,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312058124] [2021-12-21 13:14:11,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:11,648 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 13:14:11,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 13:14:11,652 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 13:14:11,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-21 13:14:11,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:11,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-21 13:14:11,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 13:14:11,996 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:14:11,996 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 13:14:11,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [312058124] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:14:11,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 13:14:11,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [15] total 21 [2021-12-21 13:14:11,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907709180] [2021-12-21 13:14:11,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:14:11,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-21 13:14:11,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:14:11,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-21 13:14:11,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2021-12-21 13:14:11,997 INFO L87 Difference]: Start difference. First operand 505 states and 616 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2021-12-21 13:14:12,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:14:12,082 INFO L93 Difference]: Finished difference Result 982 states and 1203 transitions. [2021-12-21 13:14:12,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 13:14:12,083 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 62 [2021-12-21 13:14:12,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:14:12,086 INFO L225 Difference]: With dead ends: 982 [2021-12-21 13:14:12,086 INFO L226 Difference]: Without dead ends: 484 [2021-12-21 13:14:12,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2021-12-21 13:14:12,088 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 59 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 13:14:12,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 795 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 13:14:12,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2021-12-21 13:14:12,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 482. [2021-12-21 13:14:12,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 358 states have (on average 1.1787709497206704) internal successors, (422), 380 states have internal predecessors, (422), 64 states have call successors, (64), 58 states have call predecessors, (64), 59 states have return successors, (88), 63 states have call predecessors, (88), 64 states have call successors, (88) [2021-12-21 13:14:12,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 574 transitions. [2021-12-21 13:14:12,112 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 574 transitions. Word has length 62 [2021-12-21 13:14:12,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:14:12,112 INFO L470 AbstractCegarLoop]: Abstraction has 482 states and 574 transitions. [2021-12-21 13:14:12,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2021-12-21 13:14:12,112 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 574 transitions. [2021-12-21 13:14:12,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-21 13:14:12,114 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:14:12,114 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:14:12,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-21 13:14:12,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-21 13:14:12,327 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:14:12,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:14:12,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1836694146, now seen corresponding path program 1 times [2021-12-21 13:14:12,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:14:12,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284743564] [2021-12-21 13:14:12,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:12,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:14:12,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:12,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 13:14:12,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:12,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-21 13:14:12,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:12,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 13:14:12,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:12,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 13:14:12,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:12,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:14:12,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:12,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-21 13:14:12,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:12,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-21 13:14:12,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:12,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-21 13:14:12,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:12,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 13:14:12,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:12,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-21 13:14:12,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:12,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 13:14:12,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:12,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-21 13:14:12,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:12,490 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 14 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-21 13:14:12,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:14:12,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284743564] [2021-12-21 13:14:12,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284743564] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 13:14:12,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590900808] [2021-12-21 13:14:12,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:14:12,491 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 13:14:12,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 13:14:12,492 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 13:14:12,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-21 13:14:12,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:14:12,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-21 13:14:12,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 13:14:12,763 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-21 13:14:12,763 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 13:14:12,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1590900808] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:14:12,764 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 13:14:12,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [14] total 19 [2021-12-21 13:14:12,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977994698] [2021-12-21 13:14:12,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:14:12,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-21 13:14:12,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:14:12,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-21 13:14:12,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-12-21 13:14:12,765 INFO L87 Difference]: Start difference. First operand 482 states and 574 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-21 13:14:12,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:14:12,841 INFO L93 Difference]: Finished difference Result 825 states and 993 transitions. [2021-12-21 13:14:12,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 13:14:12,842 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) Word has length 106 [2021-12-21 13:14:12,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:14:12,842 INFO L225 Difference]: With dead ends: 825 [2021-12-21 13:14:12,842 INFO L226 Difference]: Without dead ends: 0 [2021-12-21 13:14:12,844 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2021-12-21 13:14:12,844 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 68 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 936 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:14:12,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 936 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:14:12,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-21 13:14:12,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-21 13:14:12,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 13:14:12,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-21 13:14:12,845 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 106 [2021-12-21 13:14:12,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:14:12,845 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 13:14:12,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-21 13:14:12,846 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-21 13:14:12,846 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-21 13:14:12,847 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-21 13:14:12,867 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-21 13:14:13,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-21 13:14:13,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-21 13:14:15,350 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 784 790) no Hoare annotation was computed. [2021-12-21 13:14:15,351 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 784 790) the Hoare annotation is: true [2021-12-21 13:14:15,351 INFO L854 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 83 94) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0))) (and (or (not (= |old(~methaneLevelCritical~0)| 0)) .cse0 .cse1) (or (not (= ~pumpRunning~0 0)) .cse0 .cse1 (not (<= 1 |old(~methaneLevelCritical~0)|))))) [2021-12-21 13:14:15,351 INFO L858 garLoopResultBuilder]: For program point L87-1(lines 83 94) no Hoare annotation was computed. [2021-12-21 13:14:15,351 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 83 94) no Hoare annotation was computed. [2021-12-21 13:14:15,352 INFO L854 garLoopResultBuilder]: At program point L832(line 832) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= |old(~pumpRunning~0)| 0))) (not (= ~methaneLevelCritical~0 0))))) [2021-12-21 13:14:15,352 INFO L858 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-12-21 13:14:15,352 INFO L854 garLoopResultBuilder]: At program point L824(line 824) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= |old(~pumpRunning~0)| 0))))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))))) [2021-12-21 13:14:15,352 INFO L858 garLoopResultBuilder]: For program point L824-1(line 824) no Hoare annotation was computed. [2021-12-21 13:14:15,352 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 760 783) no Hoare annotation was computed. [2021-12-21 13:14:15,352 INFO L854 garLoopResultBuilder]: At program point L837(line 837) the Hoare annotation is: (let ((.cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0))) (.cse4 (not (= |old(~waterLevel~0)| 1))) (.cse5 (= ~waterLevel~0 1)) (.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse6 (<= 2 ~waterLevel~0)) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse7 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse2) (or .cse4 .cse0 .cse3 .cse5) (or .cse4 .cse0 .cse1 .cse5) (or .cse0 .cse6 .cse3 .cse7) (or .cse0 .cse6 .cse1 .cse7))) [2021-12-21 13:14:15,353 INFO L854 garLoopResultBuilder]: At program point L837-1(lines 818 842) the Hoare annotation is: (let ((.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse4 (= ~waterLevel~0 1)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (<= 2 ~waterLevel~0)) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse7 (not (<= 2 |old(~waterLevel~0)|))) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse8 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse9 (= ~pumpRunning~0 0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse2 .cse5 .cse4) (or .cse0 .cse2 .cse6 .cse3 .cse7) (or .cse8 .cse9 .cse2 .cse6 .cse5) (or .cse0 .cse2 .cse6 .cse5 .cse7) (or .cse2 (and .cse9 (<= 1 |timeShift_processEnvironment_~tmp~7#1|)) .cse3 (and .cse8 .cse9)))) [2021-12-21 13:14:15,353 INFO L858 garLoopResultBuilder]: For program point L771-1(lines 771 777) no Hoare annotation was computed. [2021-12-21 13:14:15,353 INFO L854 garLoopResultBuilder]: At program point L156(lines 151 158) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or .cse0 (not (= ~methaneLevelCritical~0 0))))) [2021-12-21 13:14:15,353 INFO L858 garLoopResultBuilder]: For program point L173(lines 173 179) no Hoare annotation was computed. [2021-12-21 13:14:15,353 INFO L858 garLoopResultBuilder]: For program point L169(lines 169 182) no Hoare annotation was computed. [2021-12-21 13:14:15,354 INFO L854 garLoopResultBuilder]: At program point L169-1(lines 161 185) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse8 (= ~pumpRunning~0 0)) (.cse9 (= |timeShift___utac_acc__Specification1_spec__1_~tmp~0#1| 0)) (.cse12 (<= 2 ~waterLevel~0))) (let ((.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse4 (= ~waterLevel~0 1)) (.cse6 (and .cse9 .cse12)) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse10 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse11 (and .cse0 .cse8 (<= 1 |timeShift_processEnvironment_~tmp~7#1|))) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse7 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse2 .cse5 .cse4) (or .cse0 .cse2 .cse6 .cse5 .cse7) (or .cse2 .cse6 (and .cse8 .cse9) .cse5 (and .cse10 .cse9)) (or .cse11 .cse2 .cse3 (and .cse10 .cse8)) (or .cse11 .cse2 .cse12 .cse3 .cse7)))) [2021-12-21 13:14:15,354 INFO L854 garLoopResultBuilder]: At program point L892(lines 887 895) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (<= 1 ~methaneLevelCritical~0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 .cse2 (= ~waterLevel~0 1)) (or .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 (not (<= 2 |old(~waterLevel~0)|))) (let ((.cse3 (= ~pumpRunning~0 0)) (.cse4 (= |timeShift_isPumpRunning_#res#1| 0))) (or (and .cse3 .cse4 (<= 1 |timeShift_processEnvironment_~tmp~7#1|)) .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse3 .cse4) .cse2)) (or .cse1 (not (= ~methaneLevelCritical~0 0))))) [2021-12-21 13:14:15,354 INFO L858 garLoopResultBuilder]: For program point L764-1(lines 763 782) no Hoare annotation was computed. [2021-12-21 13:14:15,354 INFO L858 garLoopResultBuilder]: For program point L826(lines 826 834) no Hoare annotation was computed. [2021-12-21 13:14:15,354 INFO L858 garLoopResultBuilder]: For program point L822(lines 822 839) no Hoare annotation was computed. [2021-12-21 13:14:15,354 INFO L858 garLoopResultBuilder]: For program point L63(lines 63 67) no Hoare annotation was computed. [2021-12-21 13:14:15,355 INFO L854 garLoopResultBuilder]: At program point L63-2(lines 59 70) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= |old(~pumpRunning~0)| 0))))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))))) [2021-12-21 13:14:15,355 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 760 783) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse4 (= ~waterLevel~0 1)) (.cse6 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse7 (<= 2 ~waterLevel~0)) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse8 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse2 .cse5 .cse4) (or .cse6 .cse2 .cse5) (or .cse6 .cse2 .cse3) (or .cse2 .cse7 .cse3 .cse8) (or .cse2 .cse7 .cse5 .cse8))) [2021-12-21 13:14:15,355 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 760 783) no Hoare annotation was computed. [2021-12-21 13:14:15,355 INFO L854 garLoopResultBuilder]: At program point L873(lines 868 875) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or (and .cse0 .cse1 (<= 1 |timeShift_processEnvironment_~tmp~7#1|)) .cse2 (not (<= 1 ~methaneLevelCritical~0))) (or .cse0 .cse2 .cse3) (or .cse1 .cse2 .cse3))) [2021-12-21 13:14:15,355 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 155) no Hoare annotation was computed. [2021-12-21 13:14:15,355 INFO L854 garLoopResultBuilder]: At program point L167(line 167) the Hoare annotation is: (let ((.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse4 (= ~waterLevel~0 1)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (<= 2 ~waterLevel~0)) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse7 (not (<= 2 |old(~waterLevel~0)|))) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse8 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse9 (= ~pumpRunning~0 0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse2 .cse5 .cse4) (or .cse0 .cse2 .cse6 .cse3 .cse7) (or .cse8 .cse9 .cse2 .cse6 .cse5) (or .cse0 .cse2 .cse6 .cse5 .cse7) (or .cse2 (and .cse9 (<= 1 |timeShift_processEnvironment_~tmp~7#1|)) .cse3 (and .cse8 .cse9)))) [2021-12-21 13:14:15,356 INFO L858 garLoopResultBuilder]: For program point L167-1(line 167) no Hoare annotation was computed. [2021-12-21 13:14:15,356 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 189 218) no Hoare annotation was computed. [2021-12-21 13:14:15,356 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 189 218) the Hoare annotation is: true [2021-12-21 13:14:15,356 INFO L861 garLoopResultBuilder]: At program point L214(lines 189 218) the Hoare annotation is: true [2021-12-21 13:14:15,356 INFO L858 garLoopResultBuilder]: For program point L210(line 210) no Hoare annotation was computed. [2021-12-21 13:14:15,356 INFO L858 garLoopResultBuilder]: For program point L203(lines 203 207) no Hoare annotation was computed. [2021-12-21 13:14:15,356 INFO L861 garLoopResultBuilder]: At program point L203-1(lines 203 207) the Hoare annotation is: true [2021-12-21 13:14:15,357 INFO L858 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-12-21 13:14:15,357 INFO L861 garLoopResultBuilder]: At program point L199-2(lines 199 213) the Hoare annotation is: true [2021-12-21 13:14:15,357 INFO L861 garLoopResultBuilder]: At program point L195(line 195) the Hoare annotation is: true [2021-12-21 13:14:15,357 INFO L858 garLoopResultBuilder]: For program point L195-1(line 195) no Hoare annotation was computed. [2021-12-21 13:14:15,357 INFO L861 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 95 103) the Hoare annotation is: true [2021-12-21 13:14:15,357 INFO L858 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 95 103) no Hoare annotation was computed. [2021-12-21 13:14:15,357 INFO L858 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 95 103) no Hoare annotation was computed. [2021-12-21 13:14:15,357 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 282) no Hoare annotation was computed. [2021-12-21 13:14:15,358 INFO L858 garLoopResultBuilder]: For program point L275-2(lines 275 282) no Hoare annotation was computed. [2021-12-21 13:14:15,358 INFO L854 garLoopResultBuilder]: At program point L304(lines 300 306) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-21 13:14:15,358 INFO L854 garLoopResultBuilder]: At program point L746(lines 699 747) the Hoare annotation is: false [2021-12-21 13:14:15,358 INFO L861 garLoopResultBuilder]: At program point L259(lines 252 261) the Hoare annotation is: true [2021-12-21 13:14:15,358 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-21 13:14:15,358 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-21 13:14:15,358 INFO L858 garLoopResultBuilder]: For program point L701(lines 700 745) no Hoare annotation was computed. [2021-12-21 13:14:15,359 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-21 13:14:15,359 INFO L861 garLoopResultBuilder]: At program point L284(lines 265 287) the Hoare annotation is: true [2021-12-21 13:14:15,359 INFO L858 garLoopResultBuilder]: For program point L730(lines 730 741) no Hoare annotation was computed. [2021-12-21 13:14:15,359 INFO L854 garLoopResultBuilder]: At program point L722(line 722) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0 .cse1))) [2021-12-21 13:14:15,359 INFO L854 garLoopResultBuilder]: At program point L743(lines 700 745) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0 .cse1))) [2021-12-21 13:14:15,359 INFO L858 garLoopResultBuilder]: For program point L710(lines 710 716) no Hoare annotation was computed. [2021-12-21 13:14:15,359 INFO L858 garLoopResultBuilder]: For program point L710-1(lines 710 716) no Hoare annotation was computed. [2021-12-21 13:14:15,359 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-21 13:14:15,360 INFO L858 garLoopResultBuilder]: For program point L702(lines 702 706) no Hoare annotation was computed. [2021-12-21 13:14:15,360 INFO L854 garLoopResultBuilder]: At program point L248(lines 244 250) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-21 13:14:15,360 INFO L858 garLoopResultBuilder]: For program point L736(lines 736 740) no Hoare annotation was computed. [2021-12-21 13:14:15,360 INFO L854 garLoopResultBuilder]: At program point L319(lines 314 322) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-21 13:14:15,360 INFO L854 garLoopResultBuilder]: At program point L736-2(lines 730 741) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0 .cse1) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1))) [2021-12-21 13:14:15,361 INFO L854 garLoopResultBuilder]: At program point L311(lines 307 313) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-21 13:14:15,361 INFO L858 garLoopResultBuilder]: For program point L720(lines 720 726) no Hoare annotation was computed. [2021-12-21 13:14:15,361 INFO L858 garLoopResultBuilder]: For program point L720-1(lines 720 726) no Hoare annotation was computed. [2021-12-21 13:14:15,361 INFO L861 garLoopResultBuilder]: At program point L749(lines 690 753) the Hoare annotation is: true [2021-12-21 13:14:15,361 INFO L854 garLoopResultBuilder]: At program point L712(line 712) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0 .cse1))) [2021-12-21 13:14:15,361 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 71 82) no Hoare annotation was computed. [2021-12-21 13:14:15,361 INFO L858 garLoopResultBuilder]: For program point L75-1(lines 71 82) no Hoare annotation was computed. [2021-12-21 13:14:15,362 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 71 82) the Hoare annotation is: (let ((.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse4 (= ~waterLevel~0 1)) (.cse0 (not (= ~pumpRunning~0 0))) (.cse5 (not (<= 1 ~methaneLevelCritical~0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse6 (<= 2 ~waterLevel~0)) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse7 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse2 .cse5 .cse4) (or .cse0 .cse2 .cse6 .cse5 .cse7) (or .cse2 .cse6 .cse3 .cse7))) [2021-12-21 13:14:15,362 INFO L854 garLoopResultBuilder]: At program point L145(lines 136 149) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 0))) (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse1 (= |old(~pumpRunning~0)| 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (and (<= 1 |processEnvironment__wrappee__methaneQuery_isHighWaterSensorDry_#res#1|) .cse5)) (.cse4 (and .cse5 (<= 2 ~waterLevel~0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse2 .cse4) (or (not .cse1) .cse0 .cse3 (not (<= 1 ~methaneLevelCritical~0)) .cse4)))) [2021-12-21 13:14:15,362 INFO L854 garLoopResultBuilder]: At program point L806(line 806) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |processEnvironment__wrappee__methaneQuery_~tmp~6#1| 0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (and .cse1 .cse2) (not (<= 1 ~methaneLevelCritical~0))) (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse2) (not (= ~methaneLevelCritical~0 0))))) [2021-12-21 13:14:15,362 INFO L858 garLoopResultBuilder]: For program point L800(lines 800 808) no Hoare annotation was computed. [2021-12-21 13:14:15,362 INFO L858 garLoopResultBuilder]: For program point L796(lines 796 813) no Hoare annotation was computed. [2021-12-21 13:14:15,362 INFO L858 garLoopResultBuilder]: For program point L858(lines 858 864) no Hoare annotation was computed. [2021-12-21 13:14:15,362 INFO L854 garLoopResultBuilder]: At program point L856(line 856) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (<= 2 ~waterLevel~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) (and .cse1 .cse2)) (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse2) (not (= ~methaneLevelCritical~0 0))))) [2021-12-21 13:14:15,363 INFO L854 garLoopResultBuilder]: At program point L858-2(lines 851 867) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (<= 2 ~waterLevel~0)) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or (not .cse1) .cse0 (and (<= ~methaneLevelCritical~0 |processEnvironment__wrappee__methaneQuery_activatePump_~tmp~8#1|) (= ~pumpRunning~0 0) .cse3) (not (<= 1 ~methaneLevelCritical~0))) (or .cse0 .cse3 .cse2))) [2021-12-21 13:14:15,363 INFO L858 garLoopResultBuilder]: For program point L856-1(line 856) no Hoare annotation was computed. [2021-12-21 13:14:15,363 INFO L854 garLoopResultBuilder]: At program point L947(lines 932 950) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse2 (= ~pumpRunning~0 0)) (.cse5 (= 1 ~systemActive~0))) (let ((.cse0 (not .cse5)) (.cse4 (and .cse1 .cse2 .cse5 (= |processEnvironment__wrappee__methaneQuery_isHighWaterLevel_~tmp___0~2#1| 0) (= |processEnvironment__wrappee__methaneQuery_isHighWaterLevel_#res#1| 0))) (.cse3 (<= 2 ~waterLevel~0))) (and (or .cse0 (and .cse1 .cse2 .cse3) (not (= ~methaneLevelCritical~0 0)) .cse4) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse4 (and .cse2 .cse3))))) [2021-12-21 13:14:15,363 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 792 816) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (<= 1 ~methaneLevelCritical~0))))) [2021-12-21 13:14:15,363 INFO L854 garLoopResultBuilder]: At program point L848(lines 843 850) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or (not .cse1) .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or .cse0 (<= 2 ~waterLevel~0) .cse2))) [2021-12-21 13:14:15,363 INFO L858 garLoopResultBuilder]: For program point L941(lines 941 945) no Hoare annotation was computed. [2021-12-21 13:14:15,364 INFO L858 garLoopResultBuilder]: For program point L140(lines 140 146) no Hoare annotation was computed. [2021-12-21 13:14:15,364 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 792 816) no Hoare annotation was computed. [2021-12-21 13:14:15,364 INFO L858 garLoopResultBuilder]: For program point L941-2(lines 941 945) no Hoare annotation was computed. [2021-12-21 13:14:15,364 INFO L854 garLoopResultBuilder]: At program point L811(line 811) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1) (or .cse2 .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or .cse2 .cse0 .cse1))) [2021-12-21 13:14:15,364 INFO L858 garLoopResultBuilder]: For program point L811-1(lines 792 816) no Hoare annotation was computed. [2021-12-21 13:14:15,364 INFO L861 garLoopResultBuilder]: At program point L881(line 881) the Hoare annotation is: true [2021-12-21 13:14:15,364 INFO L858 garLoopResultBuilder]: For program point L881-1(line 881) no Hoare annotation was computed. [2021-12-21 13:14:15,364 INFO L861 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 876 886) the Hoare annotation is: true [2021-12-21 13:14:15,365 INFO L858 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 876 886) no Hoare annotation was computed. [2021-12-21 13:14:15,365 INFO L858 garLoopResultBuilder]: For program point isMethaneAlarmFINAL(lines 876 886) no Hoare annotation was computed. [2021-12-21 13:14:15,367 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:14:15,368 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-21 13:14:15,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 01:14:15 BoogieIcfgContainer [2021-12-21 13:14:15,384 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-21 13:14:15,384 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 13:14:15,384 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 13:14:15,384 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 13:14:15,385 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:14:08" (3/4) ... [2021-12-21 13:14:15,387 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-21 13:14:15,390 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-12-21 13:14:15,390 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-12-21 13:14:15,391 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-12-21 13:14:15,391 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-12-21 13:14:15,391 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2021-12-21 13:14:15,391 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-12-21 13:14:15,391 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2021-12-21 13:14:15,391 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2021-12-21 13:14:15,395 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 50 nodes and edges [2021-12-21 13:14:15,396 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-12-21 13:14:15,396 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-21 13:14:15,396 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-21 13:14:15,396 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-21 13:14:15,397 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-21 13:14:15,397 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-21 13:14:15,410 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || (pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0))) && ((!(1 == systemActive) || (pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0))) || !(methaneLevelCritical == 0)) [2021-12-21 13:14:15,411 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || waterLevel == 1) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || waterLevel == 1)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || 2 <= waterLevel) || !(1 <= methaneLevelCritical)) || !(2 <= \old(waterLevel)))) && ((((pumpRunning == \old(pumpRunning) || pumpRunning == 0) || !(1 == systemActive)) || 2 <= waterLevel) || !(methaneLevelCritical == 0))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || 2 <= waterLevel) || !(methaneLevelCritical == 0)) || !(2 <= \old(waterLevel)))) && (((!(1 == systemActive) || (pumpRunning == 0 && 1 <= tmp)) || !(1 <= methaneLevelCritical)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) [2021-12-21 13:14:15,411 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || waterLevel == 1) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || waterLevel == 1)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (tmp == 0 && 2 <= waterLevel)) || !(methaneLevelCritical == 0)) || !(2 <= \old(waterLevel)))) && ((((!(1 == systemActive) || (tmp == 0 && 2 <= waterLevel)) || (pumpRunning == 0 && tmp == 0)) || !(methaneLevelCritical == 0)) || (pumpRunning == \old(pumpRunning) && tmp == 0))) && (((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 <= tmp) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0))) && ((((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 <= tmp) || !(1 == systemActive)) || 2 <= waterLevel) || !(1 <= methaneLevelCritical)) || !(2 <= \old(waterLevel))) [2021-12-21 13:14:15,412 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 <= tmp) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && ((pumpRunning == 0 || !(1 == systemActive)) || !(methaneLevelCritical == 0)) [2021-12-21 13:14:15,412 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || waterLevel == 1) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || 2 <= waterLevel) || !(1 <= methaneLevelCritical)) || !(2 <= \old(waterLevel)))) && (((((pumpRunning == 0 && \result == 0) && 1 <= tmp) || !(1 == systemActive)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \result == 0)) || !(1 <= methaneLevelCritical))) && (!(1 == systemActive) || !(methaneLevelCritical == 0)) [2021-12-21 13:14:15,412 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((methaneLevelCritical <= tmp && pumpRunning == 0) && 2 <= waterLevel)) || !(1 <= methaneLevelCritical))) && ((!(1 == systemActive) || 2 <= waterLevel) || !(methaneLevelCritical == 0)) [2021-12-21 13:14:15,412 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && ((!(1 == systemActive) || 2 <= waterLevel) || !(methaneLevelCritical == 0)) [2021-12-21 13:14:15,412 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (((!(1 == systemActive) || (1 <= \result && pumpRunning == 0)) || !(methaneLevelCritical == 0)) || (pumpRunning == 0 && 2 <= waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (1 <= \result && pumpRunning == 0)) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && 2 <= waterLevel)) [2021-12-21 13:14:15,413 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel)) || !(methaneLevelCritical == 0)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 == systemActive) && tmp___0 == 0) && \result == 0)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 == systemActive) && tmp___0 == 0) && \result == 0)) || (pumpRunning == 0 && 2 <= waterLevel)) [2021-12-21 13:14:15,432 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-21 13:14:15,432 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 13:14:15,433 INFO L158 Benchmark]: Toolchain (without parser) took 7378.41ms. Allocated memory was 123.7MB in the beginning and 188.7MB in the end (delta: 65.0MB). Free memory was 90.6MB in the beginning and 90.8MB in the end (delta: -159.8kB). Peak memory consumption was 63.4MB. Max. memory is 16.1GB. [2021-12-21 13:14:15,433 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 79.7MB. Free memory was 39.4MB in the beginning and 39.3MB in the end (delta: 37.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 13:14:15,433 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.29ms. Allocated memory is still 123.7MB. Free memory was 90.6MB in the beginning and 90.1MB in the end (delta: 530.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 13:14:15,433 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.39ms. Allocated memory is still 123.7MB. Free memory was 90.1MB in the beginning and 88.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 13:14:15,434 INFO L158 Benchmark]: Boogie Preprocessor took 40.37ms. Allocated memory is still 123.7MB. Free memory was 88.0MB in the beginning and 85.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 13:14:15,434 INFO L158 Benchmark]: RCFGBuilder took 409.35ms. Allocated memory is still 123.7MB. Free memory was 85.9MB in the beginning and 69.9MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-21 13:14:15,434 INFO L158 Benchmark]: TraceAbstraction took 6446.73ms. Allocated memory was 123.7MB in the beginning and 188.7MB in the end (delta: 65.0MB). Free memory was 69.1MB in the beginning and 97.1MB in the end (delta: -27.9MB). Peak memory consumption was 75.3MB. Max. memory is 16.1GB. [2021-12-21 13:14:15,435 INFO L158 Benchmark]: Witness Printer took 47.83ms. Allocated memory is still 188.7MB. Free memory was 97.1MB in the beginning and 90.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-21 13:14:15,436 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 79.7MB. Free memory was 39.4MB in the beginning and 39.3MB in the end (delta: 37.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 376.29ms. Allocated memory is still 123.7MB. Free memory was 90.6MB in the beginning and 90.1MB in the end (delta: 530.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.39ms. Allocated memory is still 123.7MB. Free memory was 90.1MB in the beginning and 88.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.37ms. Allocated memory is still 123.7MB. Free memory was 88.0MB in the beginning and 85.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 409.35ms. Allocated memory is still 123.7MB. Free memory was 85.9MB in the beginning and 69.9MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6446.73ms. Allocated memory was 123.7MB in the beginning and 188.7MB in the end (delta: 65.0MB). Free memory was 69.1MB in the beginning and 97.1MB in the end (delta: -27.9MB). Peak memory consumption was 75.3MB. Max. memory is 16.1GB. * Witness Printer took 47.83ms. Allocated memory is still 188.7MB. Free memory was 97.1MB in the beginning and 90.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 155]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 93 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.4s, OverallIterations: 11, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1342 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1313 mSDsluCounter, 3715 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2460 mSDsCounter, 445 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1611 IncrementalHoareTripleChecker+Invalid, 2056 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 445 mSolverCounterUnsat, 1255 mSDtfsCounter, 1611 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 367 GetRequests, 262 SyntacticMatches, 1 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=505occurred in iteration=9, InterpolantAutomatonStates: 88, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 64 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 42 LocationsWithAnnotation, 1194 PreInvPairs, 1373 NumberOfFragments, 1461 HoareAnnotationTreeSize, 1194 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 42 FomulaSimplificationsInter, 6540 FormulaSimplificationTreeSizeReductionInter, 2.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 715 NumberOfCodeBlocks, 715 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 702 ConstructedInterpolants, 0 QuantifiedInterpolants, 1381 SizeOfPredicates, 6 NumberOfNonLiveVariables, 863 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 13 InterpolantComputations, 11 PerfectInterpolantSequences, 89/103 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: 252]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 699]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (((!(1 == systemActive) || (1 <= \result && pumpRunning == 0)) || !(methaneLevelCritical == 0)) || (pumpRunning == 0 && 2 <= waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (1 <= \result && pumpRunning == 0)) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && 2 <= waterLevel)) - InvariantResult [Line: 851]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((methaneLevelCritical <= tmp && pumpRunning == 0) && 2 <= waterLevel)) || !(1 <= methaneLevelCritical))) && ((!(1 == systemActive) || 2 <= waterLevel) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 690]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 868]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 <= tmp) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && ((pumpRunning == 0 || !(1 == systemActive)) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 189]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 932]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel)) || !(methaneLevelCritical == 0)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 == systemActive) && tmp___0 == 0) && \result == 0)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 == systemActive) && tmp___0 == 0) && \result == 0)) || (pumpRunning == 0 && 2 <= waterLevel)) - InvariantResult [Line: 700]: Loop Invariant Derived loop invariant: ((methaneLevelCritical == 0 && 1 == systemActive) && splverifierCounter == 0) || (((pumpRunning == 0 && 1 <= methaneLevelCritical) && 1 == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 818]: Loop Invariant Derived loop invariant: ((((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || waterLevel == 1) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || waterLevel == 1)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || 2 <= waterLevel) || !(1 <= methaneLevelCritical)) || !(2 <= \old(waterLevel)))) && ((((pumpRunning == \old(pumpRunning) || pumpRunning == 0) || !(1 == systemActive)) || 2 <= waterLevel) || !(methaneLevelCritical == 0))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || 2 <= waterLevel) || !(methaneLevelCritical == 0)) || !(2 <= \old(waterLevel)))) && (((!(1 == systemActive) || (pumpRunning == 0 && 1 <= tmp)) || !(1 <= methaneLevelCritical)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: (!(1 == systemActive) || !(1 <= methaneLevelCritical)) && (!(1 == systemActive) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 265]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 300]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || (pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0))) && ((!(1 == systemActive) || (pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0))) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 244]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 887]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || waterLevel == 1) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || 2 <= waterLevel) || !(1 <= methaneLevelCritical)) || !(2 <= \old(waterLevel)))) && (((((pumpRunning == 0 && \result == 0) && 1 <= tmp) || !(1 == systemActive)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \result == 0)) || !(1 <= methaneLevelCritical))) && (!(1 == systemActive) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 843]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && ((!(1 == systemActive) || 2 <= waterLevel) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 199]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 307]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 161]: Loop Invariant Derived loop invariant: ((((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || waterLevel == 1) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || waterLevel == 1)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (tmp == 0 && 2 <= waterLevel)) || !(methaneLevelCritical == 0)) || !(2 <= \old(waterLevel)))) && ((((!(1 == systemActive) || (tmp == 0 && 2 <= waterLevel)) || (pumpRunning == 0 && tmp == 0)) || !(methaneLevelCritical == 0)) || (pumpRunning == \old(pumpRunning) && tmp == 0))) && (((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 <= tmp) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0))) && ((((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 <= tmp) || !(1 == systemActive)) || 2 <= waterLevel) || !(1 <= methaneLevelCritical)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 314]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 RESULT: Ultimate proved your program to be correct! [2021-12-21 13:14:15,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE