./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product62.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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_spec2_product62.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 d8e8f57de68bd156f96d4553940231369dc2e0f8c550ee7a61d6446a6f476745 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 17:24:07,197 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 17:24:07,199 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 17:24:07,244 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 17:24:07,244 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 17:24:07,246 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 17:24:07,247 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 17:24:07,248 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 17:24:07,250 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 17:24:07,251 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 17:24:07,252 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 17:24:07,253 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 17:24:07,253 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 17:24:07,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 17:24:07,255 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 17:24:07,257 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 17:24:07,257 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 17:24:07,258 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 17:24:07,260 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 17:24:07,262 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 17:24:07,263 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 17:24:07,264 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 17:24:07,265 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 17:24:07,266 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 17:24:07,267 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 17:24:07,270 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 17:24:07,271 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 17:24:07,271 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 17:24:07,272 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 17:24:07,273 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 17:24:07,273 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 17:24:07,274 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 17:24:07,275 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 17:24:07,276 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 17:24:07,276 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 17:24:07,277 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 17:24:07,278 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 17:24:07,279 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 17:24:07,279 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 17:24:07,279 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 17:24:07,280 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 17:24:07,281 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 17:24:07,282 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 17:24:07,311 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 17:24:07,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 17:24:07,314 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 17:24:07,314 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 17:24:07,315 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 17:24:07,315 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 17:24:07,316 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 17:24:07,316 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 17:24:07,316 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 17:24:07,317 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 17:24:07,317 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 17:24:07,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 17:24:07,318 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 17:24:07,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 17:24:07,318 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 17:24:07,318 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 17:24:07,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 17:24:07,319 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 17:24:07,319 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 17:24:07,320 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 17:24:07,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 17:24:07,321 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 17:24:07,321 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 17:24:07,321 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 17:24:07,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:24:07,322 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 17:24:07,322 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 17:24:07,322 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 17:24:07,322 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 17:24:07,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 17:24:07,323 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 17:24:07,323 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 17:24:07,323 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 17:24:07,323 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8e8f57de68bd156f96d4553940231369dc2e0f8c550ee7a61d6446a6f476745 [2022-07-19 17:24:07,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 17:24:07,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 17:24:07,562 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 17:24:07,564 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 17:24:07,565 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 17:24:07,567 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product62.cil.c [2022-07-19 17:24:07,621 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1a0d533e/3477a21ef99c4848a8cfa823f2cb872b/FLAGcbb0bbb92 [2022-07-19 17:24:08,117 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 17:24:08,119 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product62.cil.c [2022-07-19 17:24:08,133 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1a0d533e/3477a21ef99c4848a8cfa823f2cb872b/FLAGcbb0bbb92 [2022-07-19 17:24:08,439 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1a0d533e/3477a21ef99c4848a8cfa823f2cb872b [2022-07-19 17:24:08,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 17:24:08,444 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 17:24:08,446 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 17:24:08,446 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 17:24:08,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 17:24:08,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:24:08" (1/1) ... [2022-07-19 17:24:08,450 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36bc0d32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:24:08, skipping insertion in model container [2022-07-19 17:24:08,451 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:24:08" (1/1) ... [2022-07-19 17:24:08,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 17:24:08,505 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 17:24:08,782 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_spec2_product62.cil.c[12672,12685] [2022-07-19 17:24:08,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:24:08,862 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 17:24:08,924 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_spec2_product62.cil.c[12672,12685] [2022-07-19 17:24:08,938 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:24:08,954 INFO L208 MainTranslator]: Completed translation [2022-07-19 17:24:08,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:24:08 WrapperNode [2022-07-19 17:24:08,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 17:24:08,956 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 17:24:08,956 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 17:24:08,956 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 17:24:08,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:24:08" (1/1) ... [2022-07-19 17:24:08,979 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:24:08" (1/1) ... [2022-07-19 17:24:09,006 INFO L137 Inliner]: procedures = 59, calls = 162, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 279 [2022-07-19 17:24:09,006 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 17:24:09,007 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 17:24:09,007 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 17:24:09,007 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 17:24:09,014 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:24:08" (1/1) ... [2022-07-19 17:24:09,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:24:08" (1/1) ... [2022-07-19 17:24:09,017 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:24:08" (1/1) ... [2022-07-19 17:24:09,018 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:24:08" (1/1) ... [2022-07-19 17:24:09,025 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:24:08" (1/1) ... [2022-07-19 17:24:09,030 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:24:08" (1/1) ... [2022-07-19 17:24:09,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:24:08" (1/1) ... [2022-07-19 17:24:09,034 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 17:24:09,035 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 17:24:09,036 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 17:24:09,036 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 17:24:09,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:24:08" (1/1) ... [2022-07-19 17:24:09,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:24:09,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:24:09,078 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 17:24:09,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 17:24:09,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 17:24:09,121 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-19 17:24:09,121 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-19 17:24:09,122 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-07-19 17:24:09,122 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-07-19 17:24:09,122 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-19 17:24:09,122 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-19 17:24:09,122 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-19 17:24:09,123 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-19 17:24:09,123 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-07-19 17:24:09,123 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-07-19 17:24:09,124 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-19 17:24:09,124 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-19 17:24:09,124 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-07-19 17:24:09,124 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-07-19 17:24:09,124 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-07-19 17:24:09,124 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-07-19 17:24:09,125 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-07-19 17:24:09,125 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-07-19 17:24:09,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 17:24:09,125 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-19 17:24:09,125 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-19 17:24:09,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 17:24:09,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 17:24:09,201 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 17:24:09,206 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 17:24:09,635 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 17:24:09,641 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 17:24:09,642 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-19 17:24:09,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:24:09 BoogieIcfgContainer [2022-07-19 17:24:09,644 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 17:24:09,645 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 17:24:09,646 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 17:24:09,654 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 17:24:09,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 05:24:08" (1/3) ... [2022-07-19 17:24:09,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e5bb4a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:24:09, skipping insertion in model container [2022-07-19 17:24:09,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:24:08" (2/3) ... [2022-07-19 17:24:09,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e5bb4a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:24:09, skipping insertion in model container [2022-07-19 17:24:09,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:24:09" (3/3) ... [2022-07-19 17:24:09,657 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product62.cil.c [2022-07-19 17:24:09,673 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 17:24:09,673 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 17:24:09,746 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 17:24:09,754 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@70b6364e, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@515841eb [2022-07-19 17:24:09,755 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 17:24:09,768 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 81 states have (on average 1.3703703703703705) internal successors, (111), 91 states have internal predecessors, (111), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2022-07-19 17:24:09,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-19 17:24:09,782 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:24:09,782 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:24:09,783 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:24:09,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:24:09,789 INFO L85 PathProgramCache]: Analyzing trace with hash -561821178, now seen corresponding path program 1 times [2022-07-19 17:24:09,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:24:09,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889787082] [2022-07-19 17:24:09,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:24:09,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:24:09,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:09,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-19 17:24:09,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:10,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:24:10,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:24:10,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889787082] [2022-07-19 17:24:10,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889787082] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:24:10,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:24:10,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 17:24:10,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093386645] [2022-07-19 17:24:10,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:24:10,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 17:24:10,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:24:10,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 17:24:10,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 17:24:10,035 INFO L87 Difference]: Start difference. First operand has 111 states, 81 states have (on average 1.3703703703703705) internal successors, (111), 91 states have internal predecessors, (111), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:24:10,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:24:10,069 INFO L93 Difference]: Finished difference Result 213 states and 288 transitions. [2022-07-19 17:24:10,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 17:24:10,071 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-07-19 17:24:10,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:24:10,088 INFO L225 Difference]: With dead ends: 213 [2022-07-19 17:24:10,088 INFO L226 Difference]: Without dead ends: 102 [2022-07-19 17:24:10,092 INFO L412 NwaCegarLoop]: 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 [2022-07-19 17:24:10,094 INFO L413 NwaCegarLoop]: 141 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, 141 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:24:10,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:24:10,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-07-19 17:24:10,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2022-07-19 17:24:10,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 74 states have (on average 1.3108108108108107) internal successors, (97), 83 states have internal predecessors, (97), 18 states have call successors, (18), 10 states have call predecessors, (18), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2022-07-19 17:24:10,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 132 transitions. [2022-07-19 17:24:10,139 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 132 transitions. Word has length 25 [2022-07-19 17:24:10,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:24:10,140 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 132 transitions. [2022-07-19 17:24:10,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:24:10,141 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 132 transitions. [2022-07-19 17:24:10,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-19 17:24:10,148 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:24:10,148 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:24:10,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 17:24:10,149 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:24:10,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:24:10,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1983272792, now seen corresponding path program 1 times [2022-07-19 17:24:10,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:24:10,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59468687] [2022-07-19 17:24:10,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:24:10,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:24:10,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:10,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 17:24:10,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:10,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:24:10,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:24:10,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59468687] [2022-07-19 17:24:10,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59468687] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:24:10,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:24:10,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 17:24:10,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894457238] [2022-07-19 17:24:10,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:24:10,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:24:10,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:24:10,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:24:10,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:24:10,284 INFO L87 Difference]: Start difference. First operand 102 states and 132 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:24:10,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:24:10,318 INFO L93 Difference]: Finished difference Result 168 states and 218 transitions. [2022-07-19 17:24:10,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:24:10,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-07-19 17:24:10,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:24:10,322 INFO L225 Difference]: With dead ends: 168 [2022-07-19 17:24:10,322 INFO L226 Difference]: Without dead ends: 93 [2022-07-19 17:24:10,323 INFO L412 NwaCegarLoop]: 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 [2022-07-19 17:24:10,324 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 13 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:24:10,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 221 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:24:10,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-07-19 17:24:10,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2022-07-19 17:24:10,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 68 states have (on average 1.3235294117647058) internal successors, (90), 77 states have internal predecessors, (90), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2022-07-19 17:24:10,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 120 transitions. [2022-07-19 17:24:10,342 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 120 transitions. Word has length 26 [2022-07-19 17:24:10,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:24:10,345 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 120 transitions. [2022-07-19 17:24:10,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:24:10,346 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 120 transitions. [2022-07-19 17:24:10,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-19 17:24:10,347 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:24:10,347 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:24:10,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 17:24:10,347 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:24:10,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:24:10,348 INFO L85 PathProgramCache]: Analyzing trace with hash -452039463, now seen corresponding path program 1 times [2022-07-19 17:24:10,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:24:10,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760744793] [2022-07-19 17:24:10,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:24:10,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:24:10,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:10,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-19 17:24:10,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:10,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:24:10,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:24:10,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760744793] [2022-07-19 17:24:10,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760744793] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:24:10,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:24:10,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 17:24:10,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701962112] [2022-07-19 17:24:10,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:24:10,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 17:24:10,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:24:10,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 17:24:10,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:24:10,444 INFO L87 Difference]: Start difference. First operand 93 states and 120 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:24:10,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:24:10,526 INFO L93 Difference]: Finished difference Result 178 states and 233 transitions. [2022-07-19 17:24:10,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:24:10,527 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2022-07-19 17:24:10,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:24:10,531 INFO L225 Difference]: With dead ends: 178 [2022-07-19 17:24:10,533 INFO L226 Difference]: Without dead ends: 93 [2022-07-19 17:24:10,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:24:10,537 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 147 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:24:10,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 305 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:24:10,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-07-19 17:24:10,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2022-07-19 17:24:10,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 68 states have (on average 1.3088235294117647) internal successors, (89), 77 states have internal predecessors, (89), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2022-07-19 17:24:10,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 119 transitions. [2022-07-19 17:24:10,556 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 119 transitions. Word has length 31 [2022-07-19 17:24:10,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:24:10,556 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 119 transitions. [2022-07-19 17:24:10,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:24:10,568 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 119 transitions. [2022-07-19 17:24:10,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-19 17:24:10,571 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:24:10,571 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:24:10,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 17:24:10,572 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:24:10,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:24:10,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1529000788, now seen corresponding path program 1 times [2022-07-19 17:24:10,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:24:10,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45703430] [2022-07-19 17:24:10,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:24:10,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:24:10,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:10,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-19 17:24:10,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:10,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:24:10,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:10,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:24:10,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:10,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 17:24:10,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:10,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:24:10,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:24:10,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45703430] [2022-07-19 17:24:10,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45703430] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:24:10,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:24:10,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 17:24:10,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130146743] [2022-07-19 17:24:10,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:24:10,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 17:24:10,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:24:10,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 17:24:10,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:24:10,685 INFO L87 Difference]: Start difference. First operand 93 states and 119 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-07-19 17:24:10,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:24:10,908 INFO L93 Difference]: Finished difference Result 267 states and 341 transitions. [2022-07-19 17:24:10,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 17:24:10,908 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 46 [2022-07-19 17:24:10,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:24:10,910 INFO L225 Difference]: With dead ends: 267 [2022-07-19 17:24:10,910 INFO L226 Difference]: Without dead ends: 182 [2022-07-19 17:24:10,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-19 17:24:10,925 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 210 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:24:10,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 339 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 17:24:10,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-07-19 17:24:10,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 176. [2022-07-19 17:24:10,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 130 states have (on average 1.2538461538461538) internal successors, (163), 139 states have internal predecessors, (163), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2022-07-19 17:24:10,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 214 transitions. [2022-07-19 17:24:10,948 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 214 transitions. Word has length 46 [2022-07-19 17:24:10,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:24:10,949 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 214 transitions. [2022-07-19 17:24:10,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-07-19 17:24:10,949 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 214 transitions. [2022-07-19 17:24:10,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-19 17:24:10,950 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:24:10,950 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:24:10,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 17:24:10,951 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:24:10,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:24:10,951 INFO L85 PathProgramCache]: Analyzing trace with hash -821652620, now seen corresponding path program 1 times [2022-07-19 17:24:10,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:24:10,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093004017] [2022-07-19 17:24:10,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:24:10,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:24:10,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:11,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-19 17:24:11,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:11,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:24:11,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:11,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 17:24:11,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:11,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-19 17:24:11,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:11,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:24:11,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:24:11,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093004017] [2022-07-19 17:24:11,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093004017] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:24:11,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:24:11,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 17:24:11,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165544128] [2022-07-19 17:24:11,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:24:11,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 17:24:11,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:24:11,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 17:24:11,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 17:24:11,095 INFO L87 Difference]: Start difference. First operand 176 states and 214 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-19 17:24:11,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:24:11,315 INFO L93 Difference]: Finished difference Result 356 states and 434 transitions. [2022-07-19 17:24:11,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-19 17:24:11,315 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 52 [2022-07-19 17:24:11,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:24:11,317 INFO L225 Difference]: With dead ends: 356 [2022-07-19 17:24:11,317 INFO L226 Difference]: Without dead ends: 188 [2022-07-19 17:24:11,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-07-19 17:24:11,320 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 146 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:24:11,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 447 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 17:24:11,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-07-19 17:24:11,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 174. [2022-07-19 17:24:11,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 128 states have (on average 1.2265625) internal successors, (157), 137 states have internal predecessors, (157), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2022-07-19 17:24:11,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 208 transitions. [2022-07-19 17:24:11,336 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 208 transitions. Word has length 52 [2022-07-19 17:24:11,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:24:11,336 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 208 transitions. [2022-07-19 17:24:11,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-19 17:24:11,337 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 208 transitions. [2022-07-19 17:24:11,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-07-19 17:24:11,338 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:24:11,338 INFO L195 NwaCegarLoop]: 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] [2022-07-19 17:24:11,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 17:24:11,338 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:24:11,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:24:11,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1197221374, now seen corresponding path program 1 times [2022-07-19 17:24:11,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:24:11,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465370594] [2022-07-19 17:24:11,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:24:11,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:24:11,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:11,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-19 17:24:11,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:11,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:24:11,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:11,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 17:24:11,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:11,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 17:24:11,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:11,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-19 17:24:11,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:11,425 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 17:24:11,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:24:11,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465370594] [2022-07-19 17:24:11,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465370594] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:24:11,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:24:11,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 17:24:11,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320337741] [2022-07-19 17:24:11,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:24:11,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 17:24:11,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:24:11,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 17:24:11,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 17:24:11,427 INFO L87 Difference]: Start difference. First operand 174 states and 208 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 17:24:11,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:24:11,592 INFO L93 Difference]: Finished difference Result 350 states and 427 transitions. [2022-07-19 17:24:11,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 17:24:11,593 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (6), 2 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 62 [2022-07-19 17:24:11,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:24:11,595 INFO L225 Difference]: With dead ends: 350 [2022-07-19 17:24:11,595 INFO L226 Difference]: Without dead ends: 184 [2022-07-19 17:24:11,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-07-19 17:24:11,596 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 78 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:24:11,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 430 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 17:24:11,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-07-19 17:24:11,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 177. [2022-07-19 17:24:11,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 131 states have (on average 1.2213740458015268) internal successors, (160), 140 states have internal predecessors, (160), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2022-07-19 17:24:11,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 211 transitions. [2022-07-19 17:24:11,609 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 211 transitions. Word has length 62 [2022-07-19 17:24:11,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:24:11,609 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 211 transitions. [2022-07-19 17:24:11,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 17:24:11,610 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 211 transitions. [2022-07-19 17:24:11,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-07-19 17:24:11,611 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:24:11,612 INFO L195 NwaCegarLoop]: 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] [2022-07-19 17:24:11,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 17:24:11,612 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:24:11,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:24:11,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1124834816, now seen corresponding path program 1 times [2022-07-19 17:24:11,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:24:11,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115827556] [2022-07-19 17:24:11,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:24:11,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:24:11,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:11,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-19 17:24:11,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:11,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:24:11,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:11,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 17:24:11,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:11,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 17:24:11,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:11,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-19 17:24:11,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:11,700 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 17:24:11,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:24:11,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115827556] [2022-07-19 17:24:11,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115827556] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:24:11,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:24:11,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:24:11,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616645030] [2022-07-19 17:24:11,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:24:11,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:24:11,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:24:11,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:24:11,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:24:11,702 INFO L87 Difference]: Start difference. First operand 177 states and 211 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 17:24:11,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:24:11,863 INFO L93 Difference]: Finished difference Result 356 states and 433 transitions. [2022-07-19 17:24:11,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 17:24:11,864 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (6), 2 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 62 [2022-07-19 17:24:11,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:24:11,870 INFO L225 Difference]: With dead ends: 356 [2022-07-19 17:24:11,871 INFO L226 Difference]: Without dead ends: 187 [2022-07-19 17:24:11,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-07-19 17:24:11,873 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 115 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:24:11,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 478 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 17:24:11,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-07-19 17:24:11,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 179. [2022-07-19 17:24:11,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 133 states have (on average 1.218045112781955) internal successors, (162), 142 states have internal predecessors, (162), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2022-07-19 17:24:11,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 213 transitions. [2022-07-19 17:24:11,892 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 213 transitions. Word has length 62 [2022-07-19 17:24:11,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:24:11,893 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 213 transitions. [2022-07-19 17:24:11,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 17:24:11,893 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 213 transitions. [2022-07-19 17:24:11,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-07-19 17:24:11,897 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:24:11,897 INFO L195 NwaCegarLoop]: 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] [2022-07-19 17:24:11,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 17:24:11,898 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:24:11,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:24:11,898 INFO L85 PathProgramCache]: Analyzing trace with hash 280829314, now seen corresponding path program 1 times [2022-07-19 17:24:11,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:24:11,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622710147] [2022-07-19 17:24:11,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:24:11,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:24:11,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:11,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-19 17:24:11,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:11,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:24:11,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:11,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 17:24:11,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:11,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 17:24:11,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:11,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-19 17:24:11,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:11,994 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 17:24:11,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:24:11,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622710147] [2022-07-19 17:24:11,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622710147] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:24:11,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:24:11,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 17:24:11,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104291363] [2022-07-19 17:24:11,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:24:11,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 17:24:11,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:24:11,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 17:24:11,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:24:11,997 INFO L87 Difference]: Start difference. First operand 179 states and 213 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2022-07-19 17:24:12,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:24:12,202 INFO L93 Difference]: Finished difference Result 477 states and 597 transitions. [2022-07-19 17:24:12,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 17:24:12,202 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 62 [2022-07-19 17:24:12,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:24:12,205 INFO L225 Difference]: With dead ends: 477 [2022-07-19 17:24:12,205 INFO L226 Difference]: Without dead ends: 306 [2022-07-19 17:24:12,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:24:12,207 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 222 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:24:12,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 358 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 17:24:12,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2022-07-19 17:24:12,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 304. [2022-07-19 17:24:12,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 226 states have (on average 1.2079646017699115) internal successors, (273), 239 states have internal predecessors, (273), 39 states have call successors, (39), 35 states have call predecessors, (39), 38 states have return successors, (58), 40 states have call predecessors, (58), 39 states have call successors, (58) [2022-07-19 17:24:12,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 370 transitions. [2022-07-19 17:24:12,233 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 370 transitions. Word has length 62 [2022-07-19 17:24:12,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:24:12,233 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 370 transitions. [2022-07-19 17:24:12,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2022-07-19 17:24:12,234 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 370 transitions. [2022-07-19 17:24:12,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-19 17:24:12,234 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:24:12,235 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1] [2022-07-19 17:24:12,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-19 17:24:12,235 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:24:12,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:24:12,235 INFO L85 PathProgramCache]: Analyzing trace with hash 135373532, now seen corresponding path program 1 times [2022-07-19 17:24:12,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:24:12,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989868214] [2022-07-19 17:24:12,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:24:12,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:24:12,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:12,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:24:12,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:12,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:24:12,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:12,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:24:12,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:12,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 17:24:12,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:12,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 17:24:12,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:12,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-19 17:24:12,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:12,410 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 17:24:12,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:24:12,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989868214] [2022-07-19 17:24:12,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989868214] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:24:12,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:24:12,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 17:24:12,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407058845] [2022-07-19 17:24:12,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:24:12,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 17:24:12,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:24:12,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 17:24:12,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-07-19 17:24:12,413 INFO L87 Difference]: Start difference. First operand 304 states and 370 transitions. Second operand has 12 states, 12 states have (on average 4.25) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-19 17:24:13,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:24:13,296 INFO L93 Difference]: Finished difference Result 936 states and 1182 transitions. [2022-07-19 17:24:13,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-07-19 17:24:13,296 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) Word has length 66 [2022-07-19 17:24:13,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:24:13,329 INFO L225 Difference]: With dead ends: 936 [2022-07-19 17:24:13,329 INFO L226 Difference]: Without dead ends: 640 [2022-07-19 17:24:13,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=229, Invalid=961, Unknown=0, NotChecked=0, Total=1190 [2022-07-19 17:24:13,335 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 460 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-19 17:24:13,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 535 Invalid, 1100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-19 17:24:13,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2022-07-19 17:24:13,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 615. [2022-07-19 17:24:13,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 450 states have (on average 1.18) internal successors, (531), 480 states have internal predecessors, (531), 86 states have call successors, (86), 68 states have call predecessors, (86), 78 states have return successors, (135), 86 states have call predecessors, (135), 86 states have call successors, (135) [2022-07-19 17:24:13,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 752 transitions. [2022-07-19 17:24:13,381 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 752 transitions. Word has length 66 [2022-07-19 17:24:13,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:24:13,382 INFO L495 AbstractCegarLoop]: Abstraction has 615 states and 752 transitions. [2022-07-19 17:24:13,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-19 17:24:13,382 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 752 transitions. [2022-07-19 17:24:13,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-07-19 17:24:13,388 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:24:13,388 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:24:13,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-19 17:24:13,389 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:24:13,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:24:13,390 INFO L85 PathProgramCache]: Analyzing trace with hash -165520112, now seen corresponding path program 1 times [2022-07-19 17:24:13,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:24:13,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983822403] [2022-07-19 17:24:13,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:24:13,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:24:13,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:13,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:24:13,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:13,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-19 17:24:13,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:13,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:24:13,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:13,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:24:13,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:13,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 17:24:13,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:13,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 17:24:13,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:13,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 17:24:13,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:13,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-19 17:24:13,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:13,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-19 17:24:13,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:13,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 17:24:13,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:13,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-19 17:24:13,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:13,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 17:24:13,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:13,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:24:13,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:13,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-19 17:24:13,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:13,604 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-19 17:24:13,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:24:13,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983822403] [2022-07-19 17:24:13,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983822403] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:24:13,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855689394] [2022-07-19 17:24:13,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:24:13,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:24:13,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:24:13,611 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 17:24:13,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-19 17:24:13,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:24:13,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-19 17:24:13,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:24:13,944 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-19 17:24:13,944 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:24:13,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855689394] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:24:13,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:24:13,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [15] total 20 [2022-07-19 17:24:13,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336094578] [2022-07-19 17:24:13,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:24:13,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 17:24:13,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:24:13,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 17:24:13,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2022-07-19 17:24:13,946 INFO L87 Difference]: Start difference. First operand 615 states and 752 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 6 states have internal predecessors, (90), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-19 17:24:14,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:24:14,108 INFO L93 Difference]: Finished difference Result 1328 states and 1622 transitions. [2022-07-19 17:24:14,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 17:24:14,109 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 6 states have internal predecessors, (90), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) Word has length 125 [2022-07-19 17:24:14,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:24:14,111 INFO L225 Difference]: With dead ends: 1328 [2022-07-19 17:24:14,111 INFO L226 Difference]: Without dead ends: 0 [2022-07-19 17:24:14,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2022-07-19 17:24:14,115 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 76 mSDsluCounter, 917 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 1120 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:24:14,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 1120 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 17:24:14,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-19 17:24:14,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-19 17:24:14,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:24:14,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-19 17:24:14,117 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 125 [2022-07-19 17:24:14,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:24:14,118 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-19 17:24:14,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 6 states have internal predecessors, (90), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-19 17:24:14,118 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-19 17:24:14,118 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-19 17:24:14,120 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 17:24:14,149 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-19 17:24:14,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-19 17:24:14,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-19 17:24:17,142 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 922 929) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (= |old(~pumpRunning~0)| 0)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2))) [2022-07-19 17:24:17,142 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 922 929) no Hoare annotation was computed. [2022-07-19 17:24:17,143 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 922 929) no Hoare annotation was computed. [2022-07-19 17:24:17,143 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 812 818) no Hoare annotation was computed. [2022-07-19 17:24:17,143 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 812 818) the Hoare annotation is: true [2022-07-19 17:24:17,143 INFO L895 garLoopResultBuilder]: At program point L865(line 865) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse0 (= |old(~pumpRunning~0)| 0)) (.cse3 (= ~pumpRunning~0 0)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse1 .cse2) (or (not .cse0) .cse3 (not (<= 1 ~methaneLevelCritical~0)) .cse2))) [2022-07-19 17:24:17,143 INFO L899 garLoopResultBuilder]: For program point L865-1(lines 846 870) no Hoare annotation was computed. [2022-07-19 17:24:17,144 INFO L895 garLoopResultBuilder]: At program point L1020(lines 1005 1023) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse2))) [2022-07-19 17:24:17,144 INFO L899 garLoopResultBuilder]: For program point L1014(lines 1014 1018) no Hoare annotation was computed. [2022-07-19 17:24:17,144 INFO L899 garLoopResultBuilder]: For program point L1014-2(lines 1014 1018) no Hoare annotation was computed. [2022-07-19 17:24:17,144 INFO L895 garLoopResultBuilder]: At program point L860(line 860) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse2))) [2022-07-19 17:24:17,144 INFO L895 garLoopResultBuilder]: At program point L856(line 856) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse2))) [2022-07-19 17:24:17,144 INFO L899 garLoopResultBuilder]: For program point L854(lines 854 862) no Hoare annotation was computed. [2022-07-19 17:24:17,144 INFO L899 garLoopResultBuilder]: For program point L850(lines 850 867) no Hoare annotation was computed. [2022-07-19 17:24:17,144 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 846 870) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (<= 1 ~methaneLevelCritical~0)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0))) [2022-07-19 17:24:17,144 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 846 870) no Hoare annotation was computed. [2022-07-19 17:24:17,145 INFO L895 garLoopResultBuilder]: At program point L675(lines 670 678) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse2))) [2022-07-19 17:24:17,145 INFO L899 garLoopResultBuilder]: For program point L607-1(lines 603 614) no Hoare annotation was computed. [2022-07-19 17:24:17,145 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 603 614) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~methaneLevelCritical~0)| 0)) (= ~methaneLevelCritical~0 0) .cse0) (or (<= 1 ~methaneLevelCritical~0) (not (= ~pumpRunning~0 0)) (not (<= 1 |old(~methaneLevelCritical~0)|)) .cse0))) [2022-07-19 17:24:17,145 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 603 614) no Hoare annotation was computed. [2022-07-19 17:24:17,145 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 615 623) the Hoare annotation is: true [2022-07-19 17:24:17,145 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 615 623) no Hoare annotation was computed. [2022-07-19 17:24:17,145 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 615 623) no Hoare annotation was computed. [2022-07-19 17:24:17,146 INFO L899 garLoopResultBuilder]: For program point L799-1(lines 799 805) no Hoare annotation was computed. [2022-07-19 17:24:17,146 INFO L895 garLoopResultBuilder]: At program point L886(line 886) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (<= 1 ~methaneLevelCritical~0)) .cse0) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= |old(~pumpRunning~0)| 0))) (not (= ~methaneLevelCritical~0 0)) .cse0))) [2022-07-19 17:24:17,146 INFO L895 garLoopResultBuilder]: At program point L882(line 882) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= 0 ~systemActive~0))) (and (or (and .cse0 .cse1 (<= 1 |timeShift_processEnvironment_~tmp~8#1|)) (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or (and .cse0 .cse1) (not (= ~methaneLevelCritical~0 0)) .cse2))) [2022-07-19 17:24:17,147 INFO L895 garLoopResultBuilder]: At program point L527(lines 522 529) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (<= 1 ~methaneLevelCritical~0)) .cse0) (or (not (= ~methaneLevelCritical~0 0)) .cse0))) [2022-07-19 17:24:17,147 INFO L895 garLoopResultBuilder]: At program point L878(line 878) the Hoare annotation is: (let ((.cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= |old(~pumpRunning~0)| 0)))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or (not (<= 1 ~methaneLevelCritical~0)) .cse0 .cse1))) [2022-07-19 17:24:17,147 INFO L899 garLoopResultBuilder]: For program point L878-1(line 878) no Hoare annotation was computed. [2022-07-19 17:24:17,147 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 788 811) no Hoare annotation was computed. [2022-07-19 17:24:17,147 INFO L895 garLoopResultBuilder]: At program point L548(line 548) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (= 0 ~systemActive~0))) (and (or (not (<= 1 ~methaneLevelCritical~0)) (and .cse0 .cse1 (<= 1 |timeShift_processEnvironment_~tmp~8#1|)) (and .cse2 .cse1 .cse3) .cse4) (or (and .cse1 .cse3) (and .cse2 .cse0) (and .cse0 .cse1) (not (= ~methaneLevelCritical~0 0)) (and (<= 2 ~waterLevel~0) .cse3) .cse4))) [2022-07-19 17:24:17,147 INFO L899 garLoopResultBuilder]: For program point L548-1(line 548) no Hoare annotation was computed. [2022-07-19 17:24:17,147 INFO L895 garLoopResultBuilder]: At program point L891(line 891) the Hoare annotation is: (let ((.cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (.cse1 (= 0 ~systemActive~0))) (and (or (not (= ~methaneLevelCritical~0 0)) .cse0 .cse1) (or (not (<= 1 ~methaneLevelCritical~0)) .cse0 .cse1))) [2022-07-19 17:24:17,148 INFO L895 garLoopResultBuilder]: At program point L891-1(lines 872 896) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (= 0 ~systemActive~0))) (and (or (not (<= 1 ~methaneLevelCritical~0)) (and .cse0 .cse1 (<= 1 |timeShift_processEnvironment_~tmp~8#1|)) (and .cse2 .cse1 .cse3) .cse4) (or (and .cse1 .cse3) (and .cse2 .cse0) (and .cse0 .cse1) (not (= ~methaneLevelCritical~0 0)) (and (<= 2 ~waterLevel~0) .cse3) .cse4))) [2022-07-19 17:24:17,148 INFO L899 garLoopResultBuilder]: For program point L792-1(lines 791 810) no Hoare annotation was computed. [2022-07-19 17:24:17,148 INFO L895 garLoopResultBuilder]: At program point L946(lines 941 949) the Hoare annotation is: (let ((.cse2 (= 0 ~systemActive~0))) (and (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |timeShift_isPumpRunning_#res#1| 0))) (or (not (<= 1 ~methaneLevelCritical~0)) (and (not (= |old(~pumpRunning~0)| 0)) .cse0 (<= 1 |timeShift_processEnvironment_~tmp~8#1|) .cse1) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse2)) (or (not (= ~methaneLevelCritical~0 0)) .cse2))) [2022-07-19 17:24:17,148 INFO L899 garLoopResultBuilder]: For program point L880(lines 880 888) no Hoare annotation was computed. [2022-07-19 17:24:17,148 INFO L899 garLoopResultBuilder]: For program point L876(lines 876 893) no Hoare annotation was computed. [2022-07-19 17:24:17,148 INFO L899 garLoopResultBuilder]: For program point L554(lines 554 564) no Hoare annotation was computed. [2022-07-19 17:24:17,148 INFO L899 garLoopResultBuilder]: For program point L583(lines 583 587) no Hoare annotation was computed. [2022-07-19 17:24:17,148 INFO L899 garLoopResultBuilder]: For program point L550(lines 550 567) no Hoare annotation was computed. [2022-07-19 17:24:17,148 INFO L895 garLoopResultBuilder]: At program point L583-2(lines 579 590) the Hoare annotation is: (let ((.cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= |old(~pumpRunning~0)| 0)))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or (not (<= 1 ~methaneLevelCritical~0)) .cse0 .cse1))) [2022-07-19 17:24:17,148 INFO L895 garLoopResultBuilder]: At program point L550-1(lines 542 570) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= 0 ~systemActive~0))) (and (or (not (<= 1 ~methaneLevelCritical~0)) (and .cse0 .cse1 (<= 1 |timeShift_processEnvironment_~tmp~8#1|)) (and .cse2 .cse1 .cse3) .cse4) (let ((.cse5 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~4#1| 0))) (or (and .cse2 .cse1 .cse5 .cse3) (not (= ~methaneLevelCritical~0 0)) (and .cse0 .cse1 .cse5) (and (<= 2 ~waterLevel~0) .cse5 .cse3) (and .cse2 .cse0 .cse5) .cse4)))) [2022-07-19 17:24:17,149 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 788 811) the Hoare annotation is: (let ((.cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0))) (.cse1 (= 0 ~systemActive~0))) (and (or (not (= ~methaneLevelCritical~0 0)) .cse0 .cse1) (or (not (<= 1 ~methaneLevelCritical~0)) .cse0 .cse1))) [2022-07-19 17:24:17,149 INFO L899 garLoopResultBuilder]: For program point L526(line 526) no Hoare annotation was computed. [2022-07-19 17:24:17,149 INFO L899 garLoopResultBuilder]: For program point L555(lines 555 561) no Hoare annotation was computed. [2022-07-19 17:24:17,149 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 788 811) no Hoare annotation was computed. [2022-07-19 17:24:17,149 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 526) no Hoare annotation was computed. [2022-07-19 17:24:17,149 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 418 447) no Hoare annotation was computed. [2022-07-19 17:24:17,149 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 418 447) the Hoare annotation is: true [2022-07-19 17:24:17,149 INFO L902 garLoopResultBuilder]: At program point L443(lines 418 447) the Hoare annotation is: true [2022-07-19 17:24:17,149 INFO L899 garLoopResultBuilder]: For program point L439(line 439) no Hoare annotation was computed. [2022-07-19 17:24:17,150 INFO L899 garLoopResultBuilder]: For program point L432(lines 432 436) no Hoare annotation was computed. [2022-07-19 17:24:17,150 INFO L902 garLoopResultBuilder]: At program point L432-1(lines 432 436) the Hoare annotation is: true [2022-07-19 17:24:17,150 INFO L899 garLoopResultBuilder]: For program point L429(line 429) no Hoare annotation was computed. [2022-07-19 17:24:17,150 INFO L902 garLoopResultBuilder]: At program point L428-2(lines 428 442) the Hoare annotation is: true [2022-07-19 17:24:17,150 INFO L902 garLoopResultBuilder]: At program point L424(line 424) the Hoare annotation is: true [2022-07-19 17:24:17,150 INFO L899 garLoopResultBuilder]: For program point L424-1(line 424) no Hoare annotation was computed. [2022-07-19 17:24:17,150 INFO L895 garLoopResultBuilder]: At program point L539(lines 534 541) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~3#1| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-07-19 17:24:17,150 INFO L899 garLoopResultBuilder]: For program point L746(lines 746 752) no Hoare annotation was computed. [2022-07-19 17:24:17,150 INFO L899 garLoopResultBuilder]: For program point L746-1(lines 746 752) no Hoare annotation was computed. [2022-07-19 17:24:17,150 INFO L895 garLoopResultBuilder]: At program point L771(lines 726 773) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~3#1| 1)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0 .cse1 .cse2 .cse3) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2 .cse3))) [2022-07-19 17:24:17,151 INFO L895 garLoopResultBuilder]: At program point L738(line 738) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~3#1| 1)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0 .cse1 .cse2 .cse3) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2 .cse3))) [2022-07-19 17:24:17,151 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-19 17:24:17,151 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-19 17:24:17,151 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-19 17:24:17,151 INFO L895 garLoopResultBuilder]: At program point L710(lines 705 713) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-07-19 17:24:17,151 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-19 17:24:17,151 INFO L895 garLoopResultBuilder]: At program point L479(lines 475 481) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~3#1| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-07-19 17:24:17,151 INFO L895 garLoopResultBuilder]: At program point L702(lines 698 704) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-07-19 17:24:17,151 INFO L899 garLoopResultBuilder]: For program point L508(lines 508 515) no Hoare annotation was computed. [2022-07-19 17:24:17,152 INFO L899 garLoopResultBuilder]: For program point L764(lines 764 768) no Hoare annotation was computed. [2022-07-19 17:24:17,152 INFO L895 garLoopResultBuilder]: At program point L764-2(lines 756 769) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~3#1| 1)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0 .cse1 .cse2 .cse3) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2 .cse3))) [2022-07-19 17:24:17,152 INFO L899 garLoopResultBuilder]: For program point L508-2(lines 508 515) no Hoare annotation was computed. [2022-07-19 17:24:17,152 INFO L899 garLoopResultBuilder]: For program point L727(lines 726 773) no Hoare annotation was computed. [2022-07-19 17:24:17,152 INFO L899 garLoopResultBuilder]: For program point L756(lines 756 769) no Hoare annotation was computed. [2022-07-19 17:24:17,152 INFO L895 garLoopResultBuilder]: At program point L748(line 748) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~3#1| 1)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0 .cse1 .cse2 .cse3) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2 .cse3))) [2022-07-19 17:24:17,152 INFO L902 garLoopResultBuilder]: At program point L492(lines 484 494) the Hoare annotation is: true [2022-07-19 17:24:17,152 INFO L902 garLoopResultBuilder]: At program point L777(lines 716 781) the Hoare annotation is: true [2022-07-19 17:24:17,152 INFO L895 garLoopResultBuilder]: At program point L1029(lines 1024 1031) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~3#1| 1)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0 .cse1 .cse2 .cse3) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2 .cse3))) [2022-07-19 17:24:17,152 INFO L902 garLoopResultBuilder]: At program point L517(lines 498 520) the Hoare annotation is: true [2022-07-19 17:24:17,152 INFO L899 garLoopResultBuilder]: For program point L736(lines 736 742) no Hoare annotation was computed. [2022-07-19 17:24:17,153 INFO L899 garLoopResultBuilder]: For program point L736-1(lines 736 742) no Hoare annotation was computed. [2022-07-19 17:24:17,153 INFO L899 garLoopResultBuilder]: For program point L728(lines 728 732) no Hoare annotation was computed. [2022-07-19 17:24:17,153 INFO L895 garLoopResultBuilder]: At program point L695(lines 691 697) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-07-19 17:24:17,153 INFO L895 garLoopResultBuilder]: At program point L774(lines 725 775) the Hoare annotation is: false [2022-07-19 17:24:17,153 INFO L899 garLoopResultBuilder]: For program point L995-2(lines 995 999) no Hoare annotation was computed. [2022-07-19 17:24:17,153 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 820 844) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (<= 1 ~methaneLevelCritical~0)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0))) [2022-07-19 17:24:17,153 INFO L899 garLoopResultBuilder]: For program point L828(lines 828 836) no Hoare annotation was computed. [2022-07-19 17:24:17,153 INFO L895 garLoopResultBuilder]: At program point L665(lines 656 669) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 0))) (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse1 (and .cse5 (<= 2 ~waterLevel~0))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (and (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|) .cse5))) (and (or (not .cse0) (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse2) (or .cse4 .cse1 .cse2 .cse3)))) [2022-07-19 17:24:17,153 INFO L899 garLoopResultBuilder]: For program point L824(lines 824 841) no Hoare annotation was computed. [2022-07-19 17:24:17,153 INFO L895 garLoopResultBuilder]: At program point L839(line 839) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse2))) [2022-07-19 17:24:17,154 INFO L899 garLoopResultBuilder]: For program point L839-1(lines 820 844) no Hoare annotation was computed. [2022-07-19 17:24:17,154 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 820 844) no Hoare annotation was computed. [2022-07-19 17:24:17,154 INFO L899 garLoopResultBuilder]: For program point L660(lines 660 666) no Hoare annotation was computed. [2022-07-19 17:24:17,154 INFO L899 garLoopResultBuilder]: For program point L912(lines 912 918) no Hoare annotation was computed. [2022-07-19 17:24:17,154 INFO L895 garLoopResultBuilder]: At program point L910(line 910) the Hoare annotation is: (let ((.cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1))) [2022-07-19 17:24:17,154 INFO L895 garLoopResultBuilder]: At program point L912-2(lines 905 921) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or (not .cse0) (not (<= 1 ~methaneLevelCritical~0)) (and (= ~pumpRunning~0 0) .cse1 (= ~methaneLevelCritical~0 |processEnvironment__wrappee__highWaterSensor_activatePump_~tmp~9#1|)) .cse2) (or .cse0 .cse3 .cse2) (or .cse1 .cse3 .cse2))) [2022-07-19 17:24:17,154 INFO L899 garLoopResultBuilder]: For program point L910-1(line 910) no Hoare annotation was computed. [2022-07-19 17:24:17,154 INFO L895 garLoopResultBuilder]: At program point L1001(lines 986 1004) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse4 (= ~pumpRunning~0 0)) (.cse2 (= 0 ~systemActive~0))) (let ((.cse0 (and .cse3 .cse4 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~2#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0) (not .cse2))) (.cse1 (and .cse3 .cse4 (<= 2 ~waterLevel~0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2)))) [2022-07-19 17:24:17,154 INFO L895 garLoopResultBuilder]: At program point L902(lines 897 904) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse1 (= 0 ~systemActive~0))) (and (or (not .cse0) (not (<= 1 ~methaneLevelCritical~0)) .cse1) (or .cse0 .cse2 .cse1) (or (<= 2 ~waterLevel~0) .cse2 .cse1))) [2022-07-19 17:24:17,155 INFO L899 garLoopResultBuilder]: For program point L995(lines 995 999) no Hoare annotation was computed. [2022-07-19 17:24:17,155 INFO L895 garLoopResultBuilder]: At program point L834(line 834) the Hoare annotation is: (let ((.cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~6#1| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1) (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1))) [2022-07-19 17:24:17,155 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 591 602) no Hoare annotation was computed. [2022-07-19 17:24:17,155 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 591 602) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (= 0 ~systemActive~0))) (and (or (not (= ~methaneLevelCritical~0 0)) .cse0 .cse1) (or (not (= ~pumpRunning~0 0)) (not (<= 1 ~methaneLevelCritical~0)) .cse0 .cse1))) [2022-07-19 17:24:17,155 INFO L899 garLoopResultBuilder]: For program point L595-1(lines 591 602) no Hoare annotation was computed. [2022-07-19 17:24:17,155 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 930 940) the Hoare annotation is: true [2022-07-19 17:24:17,155 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 930 940) no Hoare annotation was computed. [2022-07-19 17:24:17,155 INFO L902 garLoopResultBuilder]: At program point L935(line 935) the Hoare annotation is: true [2022-07-19 17:24:17,155 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmFINAL(lines 930 940) no Hoare annotation was computed. [2022-07-19 17:24:17,156 INFO L899 garLoopResultBuilder]: For program point L935-1(line 935) no Hoare annotation was computed. [2022-07-19 17:24:17,158 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:24:17,160 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 17:24:17,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 05:24:17 BoogieIcfgContainer [2022-07-19 17:24:17,182 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 17:24:17,183 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 17:24:17,183 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 17:24:17,183 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 17:24:17,184 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:24:09" (3/4) ... [2022-07-19 17:24:17,186 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-19 17:24:17,192 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-07-19 17:24:17,192 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-07-19 17:24:17,192 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-07-19 17:24:17,192 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-07-19 17:24:17,192 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-07-19 17:24:17,192 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-07-19 17:24:17,192 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-07-19 17:24:17,192 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-07-19 17:24:17,193 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-07-19 17:24:17,193 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-07-19 17:24:17,200 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 53 nodes and edges [2022-07-19 17:24:17,200 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-07-19 17:24:17,201 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-19 17:24:17,201 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-19 17:24:17,202 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-19 17:24:17,202 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-19 17:24:17,202 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-19 17:24:17,222 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && methaneLevelCritical == 0) && \result == 1) && waterLevel == 1) && !(0 == systemActive) [2022-07-19 17:24:17,222 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 && methaneLevelCritical == 0) && \result == 1) && tmp == 1) && waterLevel == 1) && !(0 == systemActive) [2022-07-19 17:24:17,223 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 && methaneLevelCritical == 0) && \result == 1) && tmp == 1) && waterLevel == 1) && !(0 == systemActive) [2022-07-19 17:24:17,223 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((pumpRunning == 0 && 1 <= methaneLevelCritical) && \result == 1) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) || ((((methaneLevelCritical == 0 && \result == 1) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) [2022-07-19 17:24:17,223 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || 0 == systemActive) && ((!(1 <= methaneLevelCritical) || (pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0))) || 0 == systemActive) [2022-07-19 17:24:17,224 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 <= methaneLevelCritical) || ((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 <= tmp)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \old(waterLevel) == waterLevel)) || 0 == systemActive) && ((((((pumpRunning == 0 && \old(waterLevel) == waterLevel) || (pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0))) || (!(\old(pumpRunning) == 0) && pumpRunning == 0)) || !(methaneLevelCritical == 0)) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) || 0 == systemActive) [2022-07-19 17:24:17,224 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 <= methaneLevelCritical && \result == 1) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) || ((((methaneLevelCritical == 0 && \result == 1) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) [2022-07-19 17:24:17,225 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 <= methaneLevelCritical) || ((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 <= tmp)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \old(waterLevel) == waterLevel)) || 0 == systemActive) && ((((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp == 0) && \old(waterLevel) == waterLevel) || !(methaneLevelCritical == 0)) || ((!(\old(pumpRunning) == 0) && pumpRunning == 0) && tmp == 0)) || ((2 <= waterLevel && tmp == 0) && \old(waterLevel) == waterLevel)) || ((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && tmp == 0)) || 0 == systemActive) [2022-07-19 17:24:17,225 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 <= methaneLevelCritical) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 <= tmp) && \result == 0)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \result == 0) && \old(waterLevel) == waterLevel)) || 0 == systemActive) && (!(methaneLevelCritical == 0) || 0 == systemActive) [2022-07-19 17:24:17,225 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(1 <= methaneLevelCritical)) || ((pumpRunning == 0 && 2 <= waterLevel) && methaneLevelCritical == tmp)) || 0 == systemActive) && ((\old(pumpRunning) == 0 || !(methaneLevelCritical == 0)) || 0 == systemActive)) && ((2 <= waterLevel || !(methaneLevelCritical == 0)) || 0 == systemActive) [2022-07-19 17:24:17,225 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(1 <= methaneLevelCritical)) || 0 == systemActive) && ((\old(pumpRunning) == 0 || !(methaneLevelCritical == 0)) || 0 == systemActive)) && ((2 <= waterLevel || !(methaneLevelCritical == 0)) || 0 == systemActive) [2022-07-19 17:24:17,225 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) || !(1 <= methaneLevelCritical)) || 0 == systemActive)) && ((pumpRunning == \old(pumpRunning) || !(methaneLevelCritical == 0)) || 0 == systemActive) [2022-07-19 17:24:17,226 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && 2 <= waterLevel)) || 0 == systemActive) || (1 <= \result && pumpRunning == 0)) && ((\old(pumpRunning) == 0 || !(methaneLevelCritical == 0)) || 0 == systemActive)) && (((!(methaneLevelCritical == 0) || (pumpRunning == 0 && 2 <= waterLevel)) || 0 == systemActive) || (1 <= \result && pumpRunning == 0)) [2022-07-19 17:24:17,226 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) || !(1 <= methaneLevelCritical)) || 0 == systemActive)) && ((pumpRunning == \old(pumpRunning) || !(methaneLevelCritical == 0)) || 0 == systemActive) [2022-07-19 17:24:17,226 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp___0 == 0) && \result == 0) && !(0 == systemActive)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel)) || !(methaneLevelCritical == 0)) || 0 == systemActive) && ((((!(\old(pumpRunning) == 0) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp___0 == 0) && \result == 0) && !(0 == systemActive))) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel)) || !(1 <= methaneLevelCritical)) || 0 == systemActive) [2022-07-19 17:24:17,247 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 17:24:17,247 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 17:24:17,248 INFO L158 Benchmark]: Toolchain (without parser) took 8804.15ms. Allocated memory was 100.7MB in the beginning and 201.3MB in the end (delta: 100.7MB). Free memory was 70.2MB in the beginning and 138.8MB in the end (delta: -68.6MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. [2022-07-19 17:24:17,248 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 100.7MB. Free memory is still 57.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 17:24:17,248 INFO L158 Benchmark]: CACSL2BoogieTranslator took 509.95ms. Allocated memory was 100.7MB in the beginning and 138.4MB in the end (delta: 37.7MB). Free memory was 70.0MB in the beginning and 104.8MB in the end (delta: -34.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-19 17:24:17,249 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.12ms. Allocated memory is still 138.4MB. Free memory was 104.3MB in the beginning and 101.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 17:24:17,249 INFO L158 Benchmark]: Boogie Preprocessor took 27.69ms. Allocated memory is still 138.4MB. Free memory was 101.9MB in the beginning and 100.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 17:24:17,249 INFO L158 Benchmark]: RCFGBuilder took 608.57ms. Allocated memory is still 138.4MB. Free memory was 100.1MB in the beginning and 82.6MB in the end (delta: 17.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-07-19 17:24:17,250 INFO L158 Benchmark]: TraceAbstraction took 7536.98ms. Allocated memory was 138.4MB in the beginning and 201.3MB in the end (delta: 62.9MB). Free memory was 82.2MB in the beginning and 145.1MB in the end (delta: -62.9MB). Peak memory consumption was 78.3MB. Max. memory is 16.1GB. [2022-07-19 17:24:17,250 INFO L158 Benchmark]: Witness Printer took 64.62ms. Allocated memory is still 201.3MB. Free memory was 145.1MB in the beginning and 138.8MB in the end (delta: 6.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-19 17:24:17,251 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 100.7MB. Free memory is still 57.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 509.95ms. Allocated memory was 100.7MB in the beginning and 138.4MB in the end (delta: 37.7MB). Free memory was 70.0MB in the beginning and 104.8MB in the end (delta: -34.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.12ms. Allocated memory is still 138.4MB. Free memory was 104.3MB in the beginning and 101.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.69ms. Allocated memory is still 138.4MB. Free memory was 101.9MB in the beginning and 100.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 608.57ms. Allocated memory is still 138.4MB. Free memory was 100.1MB in the beginning and 82.6MB in the end (delta: 17.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 7536.98ms. Allocated memory was 138.4MB in the beginning and 201.3MB in the end (delta: 62.9MB). Free memory was 82.2MB in the beginning and 145.1MB in the end (delta: -62.9MB). Peak memory consumption was 78.3MB. Max. memory is 16.1GB. * Witness Printer took 64.62ms. Allocated memory is still 201.3MB. Free memory was 145.1MB in the beginning and 138.8MB in the end (delta: 6.3MB). Peak memory consumption was 4.2MB. 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: 526]: 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 11 procedures, 111 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.4s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1509 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1467 mSDsluCounter, 4374 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3034 mSDsCounter, 497 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1824 IncrementalHoareTripleChecker+Invalid, 2321 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 497 mSolverCounterUnsat, 1340 mSDtfsCounter, 1824 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 339 GetRequests, 241 SyntacticMatches, 2 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=615occurred in iteration=9, InterpolantAutomatonStates: 86, 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, 10 MinimizatonAttempts, 62 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 51 LocationsWithAnnotation, 1319 PreInvPairs, 1604 NumberOfFragments, 1409 HoareAnnotationTreeSize, 1319 FomulaSimplifications, 2792 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 51 FomulaSimplificationsInter, 10182 FormulaSimplificationTreeSizeReductionInter, 2.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 682 NumberOfCodeBlocks, 682 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 671 ConstructedInterpolants, 0 QuantifiedInterpolants, 1144 SizeOfPredicates, 3 NumberOfNonLiveVariables, 542 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 107/110 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: 705]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methaneLevelCritical == 0) && \result == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 534]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && methaneLevelCritical == 0) && \result == 1) && tmp == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 1005]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) || !(1 <= methaneLevelCritical)) || 0 == systemActive)) && ((pumpRunning == \old(pumpRunning) || !(methaneLevelCritical == 0)) || 0 == systemActive) - InvariantResult [Line: 941]: Loop Invariant Derived loop invariant: (((!(1 <= methaneLevelCritical) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 <= tmp) && \result == 0)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \result == 0) && \old(waterLevel) == waterLevel)) || 0 == systemActive) && (!(methaneLevelCritical == 0) || 0 == systemActive) - InvariantResult [Line: 897]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(1 <= methaneLevelCritical)) || 0 == systemActive) && ((\old(pumpRunning) == 0 || !(methaneLevelCritical == 0)) || 0 == systemActive)) && ((2 <= waterLevel || !(methaneLevelCritical == 0)) || 0 == systemActive) - InvariantResult [Line: 725]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 905]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(1 <= methaneLevelCritical)) || ((pumpRunning == 0 && 2 <= waterLevel) && methaneLevelCritical == tmp)) || 0 == systemActive) && ((\old(pumpRunning) == 0 || !(methaneLevelCritical == 0)) || 0 == systemActive)) && ((2 <= waterLevel || !(methaneLevelCritical == 0)) || 0 == systemActive) - InvariantResult [Line: 698]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 716]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 579]: Loop Invariant Derived loop invariant: (((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || 0 == systemActive) && ((!(1 <= methaneLevelCritical) || (pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0))) || 0 == systemActive) - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: (((!(1 <= methaneLevelCritical) || ((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 <= tmp)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \old(waterLevel) == waterLevel)) || 0 == systemActive) && ((((((pumpRunning == 0 && \old(waterLevel) == waterLevel) || (pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0))) || (!(\old(pumpRunning) == 0) && pumpRunning == 0)) || !(methaneLevelCritical == 0)) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) || 0 == systemActive) - InvariantResult [Line: 656]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && 2 <= waterLevel)) || 0 == systemActive) || (1 <= \result && pumpRunning == 0)) && ((\old(pumpRunning) == 0 || !(methaneLevelCritical == 0)) || 0 == systemActive)) && (((!(methaneLevelCritical == 0) || (pumpRunning == 0 && 2 <= waterLevel)) || 0 == systemActive) || (1 <= \result && pumpRunning == 0)) - InvariantResult [Line: 418]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 428]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 691]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 1024]: Loop Invariant Derived loop invariant: ((((1 <= methaneLevelCritical && \result == 1) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) || ((((methaneLevelCritical == 0 && \result == 1) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) - InvariantResult [Line: 986]: Loop Invariant Derived loop invariant: (((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp___0 == 0) && \result == 0) && !(0 == systemActive)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel)) || !(methaneLevelCritical == 0)) || 0 == systemActive) && ((((!(\old(pumpRunning) == 0) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp___0 == 0) && \result == 0) && !(0 == systemActive))) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel)) || !(1 <= methaneLevelCritical)) || 0 == systemActive) - InvariantResult [Line: 522]: Loop Invariant Derived loop invariant: (!(1 <= methaneLevelCritical) || 0 == systemActive) && (!(methaneLevelCritical == 0) || 0 == systemActive) - InvariantResult [Line: 726]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0 && 1 <= methaneLevelCritical) && \result == 1) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) || ((((methaneLevelCritical == 0 && \result == 1) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) - InvariantResult [Line: 670]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) || !(1 <= methaneLevelCritical)) || 0 == systemActive)) && ((pumpRunning == \old(pumpRunning) || !(methaneLevelCritical == 0)) || 0 == systemActive) - InvariantResult [Line: 542]: Loop Invariant Derived loop invariant: (((!(1 <= methaneLevelCritical) || ((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 <= tmp)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \old(waterLevel) == waterLevel)) || 0 == systemActive) && ((((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp == 0) && \old(waterLevel) == waterLevel) || !(methaneLevelCritical == 0)) || ((!(\old(pumpRunning) == 0) && pumpRunning == 0) && tmp == 0)) || ((2 <= waterLevel && tmp == 0) && \old(waterLevel) == waterLevel)) || ((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && tmp == 0)) || 0 == systemActive) - InvariantResult [Line: 498]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 484]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 475]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && methaneLevelCritical == 0) && \result == 1) && tmp == 1) && waterLevel == 1) && !(0 == systemActive) RESULT: Ultimate proved your program to be correct! [2022-07-19 17:24:17,289 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE