./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product41.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_spec4_product41.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 12f35b53fa21b1b526c5ccefe7a49d52db3501fafceaddf16f789eadd54f272a --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 17:25:14,196 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 17:25:14,225 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 17:25:14,259 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 17:25:14,264 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 17:25:14,266 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 17:25:14,270 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 17:25:14,272 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 17:25:14,274 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 17:25:14,278 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 17:25:14,279 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 17:25:14,280 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 17:25:14,280 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 17:25:14,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 17:25:14,283 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 17:25:14,284 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 17:25:14,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 17:25:14,286 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 17:25:14,289 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 17:25:14,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 17:25:14,294 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 17:25:14,296 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 17:25:14,297 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 17:25:14,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 17:25:14,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 17:25:14,302 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 17:25:14,302 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 17:25:14,302 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 17:25:14,303 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 17:25:14,303 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 17:25:14,304 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 17:25:14,304 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 17:25:14,306 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 17:25:14,306 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 17:25:14,307 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 17:25:14,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 17:25:14,307 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 17:25:14,308 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 17:25:14,308 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 17:25:14,308 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 17:25:14,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 17:25:14,310 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 17:25:14,311 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 17:25:14,334 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 17:25:14,334 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 17:25:14,335 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 17:25:14,335 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 17:25:14,335 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 17:25:14,335 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 17:25:14,336 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 17:25:14,336 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 17:25:14,336 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 17:25:14,337 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 17:25:14,337 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 17:25:14,337 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 17:25:14,337 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 17:25:14,337 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 17:25:14,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 17:25:14,338 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 17:25:14,338 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 17:25:14,338 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 17:25:14,338 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 17:25:14,339 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 17:25:14,339 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 17:25:14,339 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 17:25:14,339 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 17:25:14,340 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 17:25:14,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:25:14,340 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 17:25:14,340 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 17:25:14,340 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 17:25:14,340 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 17:25:14,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 17:25:14,341 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 17:25:14,341 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 17:25:14,341 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 17:25:14,341 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12f35b53fa21b1b526c5ccefe7a49d52db3501fafceaddf16f789eadd54f272a [2022-07-19 17:25:14,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 17:25:14,522 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 17:25:14,524 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 17:25:14,525 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 17:25:14,526 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 17:25:14,527 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c [2022-07-19 17:25:14,569 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee2f45b48/4b049961dd4042a6a07f84088affde52/FLAG59acce355 [2022-07-19 17:25:14,975 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 17:25:14,977 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c [2022-07-19 17:25:14,987 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee2f45b48/4b049961dd4042a6a07f84088affde52/FLAG59acce355 [2022-07-19 17:25:15,296 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee2f45b48/4b049961dd4042a6a07f84088affde52 [2022-07-19 17:25:15,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 17:25:15,300 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 17:25:15,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 17:25:15,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 17:25:15,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 17:25:15,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:25:15" (1/1) ... [2022-07-19 17:25:15,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72847f69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:15, skipping insertion in model container [2022-07-19 17:25:15,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:25:15" (1/1) ... [2022-07-19 17:25:15,310 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 17:25:15,352 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 17:25:15,580 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c[4000,4013] [2022-07-19 17:25:15,700 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:25:15,712 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 17:25:15,753 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c[4000,4013] [2022-07-19 17:25:15,827 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:25:15,863 INFO L208 MainTranslator]: Completed translation [2022-07-19 17:25:15,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:15 WrapperNode [2022-07-19 17:25:15,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 17:25:15,879 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 17:25:15,879 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 17:25:15,879 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 17:25:15,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:15" (1/1) ... [2022-07-19 17:25:15,913 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:15" (1/1) ... [2022-07-19 17:25:15,965 INFO L137 Inliner]: procedures = 53, calls = 151, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 246 [2022-07-19 17:25:15,967 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 17:25:15,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 17:25:15,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 17:25:15,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 17:25:15,974 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:15" (1/1) ... [2022-07-19 17:25:15,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:15" (1/1) ... [2022-07-19 17:25:15,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:15" (1/1) ... [2022-07-19 17:25:15,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:15" (1/1) ... [2022-07-19 17:25:16,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:15" (1/1) ... [2022-07-19 17:25:16,014 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:15" (1/1) ... [2022-07-19 17:25:16,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:15" (1/1) ... [2022-07-19 17:25:16,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 17:25:16,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 17:25:16,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 17:25:16,032 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 17:25:16,033 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:15" (1/1) ... [2022-07-19 17:25:16,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:25:16,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:25:16,073 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 17:25:16,127 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 17:25:16,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 17:25:16,154 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-19 17:25:16,154 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-19 17:25:16,154 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-19 17:25:16,154 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-19 17:25:16,154 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-19 17:25:16,154 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-19 17:25:16,154 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-19 17:25:16,154 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-19 17:25:16,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 17:25:16,155 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-19 17:25:16,155 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-19 17:25:16,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 17:25:16,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 17:25:16,223 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 17:25:16,224 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 17:25:16,403 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 17:25:16,408 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 17:25:16,408 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-19 17:25:16,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:25:16 BoogieIcfgContainer [2022-07-19 17:25:16,410 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 17:25:16,411 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 17:25:16,412 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 17:25:16,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 17:25:16,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 05:25:15" (1/3) ... [2022-07-19 17:25:16,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3964d4f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:25:16, skipping insertion in model container [2022-07-19 17:25:16,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:15" (2/3) ... [2022-07-19 17:25:16,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3964d4f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:25:16, skipping insertion in model container [2022-07-19 17:25:16,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:25:16" (3/3) ... [2022-07-19 17:25:16,417 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product41.cil.c [2022-07-19 17:25:16,427 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 17:25:16,428 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 17:25:16,462 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 17:25:16,466 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@704fa7be, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4980eda2 [2022-07-19 17:25:16,467 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 17:25:16,470 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 59 states have (on average 1.4067796610169492) internal successors, (83), 65 states have internal predecessors, (83), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-07-19 17:25:16,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-19 17:25:16,476 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:25:16,476 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:25:16,477 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:25:16,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:25:16,483 INFO L85 PathProgramCache]: Analyzing trace with hash 125055405, now seen corresponding path program 1 times [2022-07-19 17:25:16,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:25:16,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102842067] [2022-07-19 17:25:16,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:16,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:25:16,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:16,690 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 17:25:16,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:25:16,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102842067] [2022-07-19 17:25:16,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102842067] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:25:16,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:25:16,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 17:25:16,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229513377] [2022-07-19 17:25:16,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:25:16,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 17:25:16,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:25:16,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 17:25:16,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 17:25:16,733 INFO L87 Difference]: Start difference. First operand has 74 states, 59 states have (on average 1.4067796610169492) internal successors, (83), 65 states have internal predecessors, (83), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:25:16,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:25:16,768 INFO L93 Difference]: Finished difference Result 140 states and 193 transitions. [2022-07-19 17:25:16,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 17:25:16,770 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-07-19 17:25:16,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:25:16,776 INFO L225 Difference]: With dead ends: 140 [2022-07-19 17:25:16,777 INFO L226 Difference]: Without dead ends: 65 [2022-07-19 17:25:16,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 17:25:16,785 INFO L413 NwaCegarLoop]: 93 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, 93 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 17:25:16,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:25:16,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-07-19 17:25:16,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2022-07-19 17:25:16,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 52 states have (on average 1.3269230769230769) internal successors, (69), 57 states have internal predecessors, (69), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-19 17:25:16,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 84 transitions. [2022-07-19 17:25:16,826 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 84 transitions. Word has length 19 [2022-07-19 17:25:16,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:25:16,826 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 84 transitions. [2022-07-19 17:25:16,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:25:16,827 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 84 transitions. [2022-07-19 17:25:16,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-19 17:25:16,829 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:25:16,829 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:25:16,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 17:25:16,830 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:25:16,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:25:16,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1087845428, now seen corresponding path program 1 times [2022-07-19 17:25:16,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:25:16,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700834088] [2022-07-19 17:25:16,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:16,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:25:16,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:16,913 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 17:25:16,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:25:16,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700834088] [2022-07-19 17:25:16,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700834088] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:25:16,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:25:16,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 17:25:16,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628109799] [2022-07-19 17:25:16,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:25:16,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:25:16,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:25:16,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:25:16,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:25:16,916 INFO L87 Difference]: Start difference. First operand 65 states and 84 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:25:16,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:25:16,926 INFO L93 Difference]: Finished difference Result 96 states and 124 transitions. [2022-07-19 17:25:16,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:25:16,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-07-19 17:25:16,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:25:16,928 INFO L225 Difference]: With dead ends: 96 [2022-07-19 17:25:16,928 INFO L226 Difference]: Without dead ends: 56 [2022-07-19 17:25:16,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:25:16,930 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 12 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 126 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 17:25:16,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 126 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:25:16,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-07-19 17:25:16,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-07-19 17:25:16,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 46 states have (on average 1.3478260869565217) internal successors, (62), 51 states have internal predecessors, (62), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-19 17:25:16,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 72 transitions. [2022-07-19 17:25:16,936 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 72 transitions. Word has length 20 [2022-07-19 17:25:16,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:25:16,936 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 72 transitions. [2022-07-19 17:25:16,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:25:16,937 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 72 transitions. [2022-07-19 17:25:16,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-19 17:25:16,937 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:25:16,937 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:25:16,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 17:25:16,938 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:25:16,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:25:16,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1276159455, now seen corresponding path program 1 times [2022-07-19 17:25:16,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:25:16,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963806636] [2022-07-19 17:25:16,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:16,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:25:16,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:17,015 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 17:25:17,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:25:17,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963806636] [2022-07-19 17:25:17,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963806636] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:25:17,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:25:17,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 17:25:17,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389541680] [2022-07-19 17:25:17,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:25:17,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:25:17,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:25:17,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:25:17,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:25:17,018 INFO L87 Difference]: Start difference. First operand 56 states and 72 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:25:17,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:25:17,035 INFO L93 Difference]: Finished difference Result 105 states and 138 transitions. [2022-07-19 17:25:17,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:25:17,036 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-07-19 17:25:17,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:25:17,037 INFO L225 Difference]: With dead ends: 105 [2022-07-19 17:25:17,037 INFO L226 Difference]: Without dead ends: 56 [2022-07-19 17:25:17,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:25:17,040 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 54 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 70 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 17:25:17,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 70 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:25:17,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-07-19 17:25:17,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-07-19 17:25:17,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 46 states have (on average 1.326086956521739) internal successors, (61), 51 states have internal predecessors, (61), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-19 17:25:17,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 71 transitions. [2022-07-19 17:25:17,051 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 71 transitions. Word has length 24 [2022-07-19 17:25:17,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:25:17,053 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 71 transitions. [2022-07-19 17:25:17,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:25:17,053 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 71 transitions. [2022-07-19 17:25:17,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-19 17:25:17,055 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:25:17,055 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] [2022-07-19 17:25:17,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 17:25:17,055 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:25:17,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:25:17,060 INFO L85 PathProgramCache]: Analyzing trace with hash -384200528, now seen corresponding path program 1 times [2022-07-19 17:25:17,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:25:17,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491194155] [2022-07-19 17:25:17,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:17,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:25:17,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:17,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-19 17:25:17,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:17,116 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 17:25:17,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:25:17,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491194155] [2022-07-19 17:25:17,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491194155] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:25:17,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:25:17,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 17:25:17,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752980838] [2022-07-19 17:25:17,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:25:17,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:25:17,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:25:17,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:25:17,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:25:17,121 INFO L87 Difference]: Start difference. First operand 56 states and 71 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 17:25:17,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:25:17,157 INFO L93 Difference]: Finished difference Result 140 states and 182 transitions. [2022-07-19 17:25:17,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:25:17,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 29 [2022-07-19 17:25:17,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:25:17,159 INFO L225 Difference]: With dead ends: 140 [2022-07-19 17:25:17,160 INFO L226 Difference]: Without dead ends: 91 [2022-07-19 17:25:17,161 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 17:25:17,163 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 45 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:25:17,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 117 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:25:17,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-07-19 17:25:17,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 89. [2022-07-19 17:25:17,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 72 states have (on average 1.3194444444444444) internal successors, (95), 79 states have internal predecessors, (95), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2022-07-19 17:25:17,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 113 transitions. [2022-07-19 17:25:17,179 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 113 transitions. Word has length 29 [2022-07-19 17:25:17,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:25:17,179 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 113 transitions. [2022-07-19 17:25:17,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 17:25:17,180 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 113 transitions. [2022-07-19 17:25:17,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-19 17:25:17,181 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:25:17,181 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] [2022-07-19 17:25:17,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 17:25:17,181 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:25:17,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:25:17,182 INFO L85 PathProgramCache]: Analyzing trace with hash 234187366, now seen corresponding path program 1 times [2022-07-19 17:25:17,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:25:17,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338940874] [2022-07-19 17:25:17,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:17,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:25:17,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:17,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:25:17,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:17,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:25:17,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:25:17,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338940874] [2022-07-19 17:25:17,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338940874] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:25:17,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:25:17,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 17:25:17,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038879145] [2022-07-19 17:25:17,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:25:17,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:25:17,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:25:17,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:25:17,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 17:25:17,221 INFO L87 Difference]: Start difference. First operand 89 states and 113 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (2), 1 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 17:25:17,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:25:17,243 INFO L93 Difference]: Finished difference Result 203 states and 264 transitions. [2022-07-19 17:25:17,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 17:25:17,244 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (2), 1 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 35 [2022-07-19 17:25:17,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:25:17,245 INFO L225 Difference]: With dead ends: 203 [2022-07-19 17:25:17,245 INFO L226 Difference]: Without dead ends: 121 [2022-07-19 17:25:17,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:25:17,247 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 45 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:25:17,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 204 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:25:17,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-07-19 17:25:17,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 91. [2022-07-19 17:25:17,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 74 states have (on average 1.3108108108108107) internal successors, (97), 81 states have internal predecessors, (97), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2022-07-19 17:25:17,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 115 transitions. [2022-07-19 17:25:17,256 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 115 transitions. Word has length 35 [2022-07-19 17:25:17,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:25:17,256 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 115 transitions. [2022-07-19 17:25:17,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (2), 1 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 17:25:17,257 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 115 transitions. [2022-07-19 17:25:17,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-19 17:25:17,257 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:25:17,257 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] [2022-07-19 17:25:17,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 17:25:17,258 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:25:17,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:25:17,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1245304616, now seen corresponding path program 1 times [2022-07-19 17:25:17,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:25:17,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059443038] [2022-07-19 17:25:17,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:17,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:25:17,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:17,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:25:17,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:17,317 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 17:25:17,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:25:17,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059443038] [2022-07-19 17:25:17,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059443038] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:25:17,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:25:17,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 17:25:17,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866572975] [2022-07-19 17:25:17,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:25:17,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 17:25:17,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:25:17,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 17:25:17,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 17:25:17,319 INFO L87 Difference]: Start difference. First operand 91 states and 115 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 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 17:25:17,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:25:17,425 INFO L93 Difference]: Finished difference Result 335 states and 462 transitions. [2022-07-19 17:25:17,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:25:17,425 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 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 35 [2022-07-19 17:25:17,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:25:17,428 INFO L225 Difference]: With dead ends: 335 [2022-07-19 17:25:17,428 INFO L226 Difference]: Without dead ends: 251 [2022-07-19 17:25:17,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-07-19 17:25:17,429 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 141 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:25:17,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 384 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 17:25:17,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-07-19 17:25:17,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 241. [2022-07-19 17:25:17,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 194 states have (on average 1.2989690721649485) internal successors, (252), 213 states have internal predecessors, (252), 22 states have call successors, (22), 22 states have call predecessors, (22), 24 states have return successors, (42), 24 states have call predecessors, (42), 22 states have call successors, (42) [2022-07-19 17:25:17,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 316 transitions. [2022-07-19 17:25:17,453 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 316 transitions. Word has length 35 [2022-07-19 17:25:17,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:25:17,453 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 316 transitions. [2022-07-19 17:25:17,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 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 17:25:17,454 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 316 transitions. [2022-07-19 17:25:17,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-19 17:25:17,455 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:25:17,455 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] [2022-07-19 17:25:17,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 17:25:17,455 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:25:17,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:25:17,456 INFO L85 PathProgramCache]: Analyzing trace with hash -2121318334, now seen corresponding path program 1 times [2022-07-19 17:25:17,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:25:17,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039292948] [2022-07-19 17:25:17,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:17,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:25:17,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:17,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-19 17:25:17,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:17,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-19 17:25:17,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:17,502 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 17:25:17,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:25:17,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039292948] [2022-07-19 17:25:17,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039292948] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:25:17,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:25:17,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 17:25:17,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695761421] [2022-07-19 17:25:17,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:25:17,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 17:25:17,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:25:17,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 17:25:17,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 17:25:17,504 INFO L87 Difference]: Start difference. First operand 241 states and 316 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 17:25:17,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:25:17,647 INFO L93 Difference]: Finished difference Result 318 states and 413 transitions. [2022-07-19 17:25:17,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-19 17:25:17,647 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 39 [2022-07-19 17:25:17,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:25:17,649 INFO L225 Difference]: With dead ends: 318 [2022-07-19 17:25:17,650 INFO L226 Difference]: Without dead ends: 316 [2022-07-19 17:25:17,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-07-19 17:25:17,651 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 114 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:25:17,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 323 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 17:25:17,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-07-19 17:25:17,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 302. [2022-07-19 17:25:17,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 248 states have (on average 1.2701612903225807) internal successors, (315), 274 states have internal predecessors, (315), 25 states have call successors, (25), 22 states have call predecessors, (25), 28 states have return successors, (51), 27 states have call predecessors, (51), 25 states have call successors, (51) [2022-07-19 17:25:17,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 391 transitions. [2022-07-19 17:25:17,671 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 391 transitions. Word has length 39 [2022-07-19 17:25:17,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:25:17,671 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 391 transitions. [2022-07-19 17:25:17,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 17:25:17,672 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 391 transitions. [2022-07-19 17:25:17,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-19 17:25:17,673 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:25:17,673 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] [2022-07-19 17:25:17,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 17:25:17,673 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:25:17,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:25:17,674 INFO L85 PathProgramCache]: Analyzing trace with hash 113843845, now seen corresponding path program 1 times [2022-07-19 17:25:17,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:25:17,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60552426] [2022-07-19 17:25:17,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:17,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:25:17,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:17,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-19 17:25:17,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:17,710 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 17:25:17,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:25:17,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60552426] [2022-07-19 17:25:17,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60552426] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:25:17,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:25:17,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 17:25:17,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589626212] [2022-07-19 17:25:17,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:25:17,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 17:25:17,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:25:17,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 17:25:17,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 17:25:17,712 INFO L87 Difference]: Start difference. First operand 302 states and 391 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (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 17:25:17,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:25:17,834 INFO L93 Difference]: Finished difference Result 641 states and 861 transitions. [2022-07-19 17:25:17,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-19 17:25:17,835 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (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 41 [2022-07-19 17:25:17,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:25:17,837 INFO L225 Difference]: With dead ends: 641 [2022-07-19 17:25:17,837 INFO L226 Difference]: Without dead ends: 346 [2022-07-19 17:25:17,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-07-19 17:25:17,840 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 129 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:25:17,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 316 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 17:25:17,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2022-07-19 17:25:17,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 299. [2022-07-19 17:25:17,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 245 states have (on average 1.2571428571428571) internal successors, (308), 267 states have internal predecessors, (308), 25 states have call successors, (25), 22 states have call predecessors, (25), 28 states have return successors, (50), 27 states have call predecessors, (50), 25 states have call successors, (50) [2022-07-19 17:25:17,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 383 transitions. [2022-07-19 17:25:17,888 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 383 transitions. Word has length 41 [2022-07-19 17:25:17,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:25:17,889 INFO L495 AbstractCegarLoop]: Abstraction has 299 states and 383 transitions. [2022-07-19 17:25:17,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (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 17:25:17,890 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 383 transitions. [2022-07-19 17:25:17,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-07-19 17:25:17,896 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:25:17,897 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-19 17:25:17,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-19 17:25:17,897 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:25:17,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:25:17,898 INFO L85 PathProgramCache]: Analyzing trace with hash 538402958, now seen corresponding path program 1 times [2022-07-19 17:25:17,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:25:17,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730698773] [2022-07-19 17:25:17,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:17,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:25:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:17,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-19 17:25:17,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:18,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-19 17:25:18,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:18,010 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:25:18,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:25:18,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730698773] [2022-07-19 17:25:18,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730698773] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:25:18,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:25:18,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:25:18,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816989546] [2022-07-19 17:25:18,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:25:18,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:25:18,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:25:18,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:25:18,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:25:18,013 INFO L87 Difference]: Start difference. First operand 299 states and 383 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-19 17:25:18,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:25:18,127 INFO L93 Difference]: Finished difference Result 567 states and 719 transitions. [2022-07-19 17:25:18,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 17:25:18,127 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 61 [2022-07-19 17:25:18,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:25:18,129 INFO L225 Difference]: With dead ends: 567 [2022-07-19 17:25:18,130 INFO L226 Difference]: Without dead ends: 275 [2022-07-19 17:25:18,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-07-19 17:25:18,131 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 120 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:25:18,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 280 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 17:25:18,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2022-07-19 17:25:18,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 273. [2022-07-19 17:25:18,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 224 states have (on average 1.21875) internal successors, (273), 242 states have internal predecessors, (273), 22 states have call successors, (22), 19 states have call predecessors, (22), 26 states have return successors, (42), 23 states have call predecessors, (42), 22 states have call successors, (42) [2022-07-19 17:25:18,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 337 transitions. [2022-07-19 17:25:18,145 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 337 transitions. Word has length 61 [2022-07-19 17:25:18,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:25:18,145 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 337 transitions. [2022-07-19 17:25:18,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-19 17:25:18,146 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 337 transitions. [2022-07-19 17:25:18,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-19 17:25:18,147 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:25:18,147 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:25:18,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-19 17:25:18,147 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:25:18,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:25:18,148 INFO L85 PathProgramCache]: Analyzing trace with hash 960970024, now seen corresponding path program 1 times [2022-07-19 17:25:18,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:25:18,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579518463] [2022-07-19 17:25:18,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:18,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:25:18,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:18,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-19 17:25:18,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:18,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-19 17:25:18,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:18,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-19 17:25:18,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:18,206 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:25:18,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:25:18,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579518463] [2022-07-19 17:25:18,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579518463] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:25:18,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609005765] [2022-07-19 17:25:18,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:18,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:25:18,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:25:18,217 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 17:25:18,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-19 17:25:18,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:18,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-19 17:25:18,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:25:18,361 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:25:18,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 17:25:18,418 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:25:18,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609005765] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 17:25:18,419 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 17:25:18,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 8 [2022-07-19 17:25:18,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426397888] [2022-07-19 17:25:18,419 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 17:25:18,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 17:25:18,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:25:18,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 17:25:18,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-19 17:25:18,420 INFO L87 Difference]: Start difference. First operand 273 states and 337 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-19 17:25:18,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:25:18,656 INFO L93 Difference]: Finished difference Result 594 states and 786 transitions. [2022-07-19 17:25:18,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-19 17:25:18,657 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 65 [2022-07-19 17:25:18,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:25:18,659 INFO L225 Difference]: With dead ends: 594 [2022-07-19 17:25:18,659 INFO L226 Difference]: Without dead ends: 363 [2022-07-19 17:25:18,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 135 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=133, Invalid=287, Unknown=0, NotChecked=0, Total=420 [2022-07-19 17:25:18,660 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 253 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:25:18,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 442 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 17:25:18,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2022-07-19 17:25:18,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 335. [2022-07-19 17:25:18,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 271 states have (on average 1.2287822878228782) internal successors, (333), 292 states have internal predecessors, (333), 31 states have call successors, (31), 28 states have call predecessors, (31), 32 states have return successors, (58), 28 states have call predecessors, (58), 31 states have call successors, (58) [2022-07-19 17:25:18,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 422 transitions. [2022-07-19 17:25:18,687 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 422 transitions. Word has length 65 [2022-07-19 17:25:18,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:25:18,687 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 422 transitions. [2022-07-19 17:25:18,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-19 17:25:18,688 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 422 transitions. [2022-07-19 17:25:18,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-07-19 17:25:18,688 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:25:18,688 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-19 17:25:18,732 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 17:25:18,889 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 17:25:18,889 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:25:18,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:25:18,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1753618127, now seen corresponding path program 2 times [2022-07-19 17:25:18,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:25:18,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326712546] [2022-07-19 17:25:18,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:18,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:25:18,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 17:25:18,920 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 17:25:18,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 17:25:19,001 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 17:25:19,001 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 17:25:19,002 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 17:25:19,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-19 17:25:19,005 INFO L356 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:25:19,018 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 17:25:19,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 05:25:19 BoogieIcfgContainer [2022-07-19 17:25:19,086 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 17:25:19,086 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 17:25:19,086 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 17:25:19,087 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 17:25:19,087 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:25:16" (3/4) ... [2022-07-19 17:25:19,088 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-19 17:25:19,178 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 17:25:19,178 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 17:25:19,178 INFO L158 Benchmark]: Toolchain (without parser) took 3878.68ms. Allocated memory was 136.3MB in the beginning and 176.2MB in the end (delta: 39.8MB). Free memory was 108.3MB in the beginning and 103.9MB in the end (delta: 4.4MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. [2022-07-19 17:25:19,179 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 96.5MB. Free memory is still 61.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 17:25:19,179 INFO L158 Benchmark]: CACSL2BoogieTranslator took 563.81ms. Allocated memory is still 136.3MB. Free memory was 108.1MB in the beginning and 102.4MB in the end (delta: 5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 17:25:19,179 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.78ms. Allocated memory is still 136.3MB. Free memory was 102.2MB in the beginning and 99.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 17:25:19,179 INFO L158 Benchmark]: Boogie Preprocessor took 53.82ms. Allocated memory is still 136.3MB. Free memory was 99.8MB in the beginning and 98.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 17:25:19,179 INFO L158 Benchmark]: RCFGBuilder took 387.87ms. Allocated memory is still 136.3MB. Free memory was 98.2MB in the beginning and 82.6MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-19 17:25:19,179 INFO L158 Benchmark]: TraceAbstraction took 2674.57ms. Allocated memory was 136.3MB in the beginning and 176.2MB in the end (delta: 39.8MB). Free memory was 82.0MB in the beginning and 110.1MB in the end (delta: -28.1MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2022-07-19 17:25:19,179 INFO L158 Benchmark]: Witness Printer took 91.64ms. Allocated memory is still 176.2MB. Free memory was 110.1MB in the beginning and 103.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-19 17:25:19,181 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 96.5MB. Free memory is still 61.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 563.81ms. Allocated memory is still 136.3MB. Free memory was 108.1MB in the beginning and 102.4MB in the end (delta: 5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.78ms. Allocated memory is still 136.3MB. Free memory was 102.2MB in the beginning and 99.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.82ms. Allocated memory is still 136.3MB. Free memory was 99.8MB in the beginning and 98.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 387.87ms. Allocated memory is still 136.3MB. Free memory was 98.2MB in the beginning and 82.6MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2674.57ms. Allocated memory was 136.3MB in the beginning and 176.2MB in the end (delta: 39.8MB). Free memory was 82.0MB in the beginning and 110.1MB in the end (delta: -28.1MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. * Witness Printer took 91.64ms. Allocated memory is still 176.2MB. Free memory was 110.1MB in the beginning and 103.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 221]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L395] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L662] int pumpRunning = 0; [L663] int systemActive = 1; [L832] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L905] int retValue_acc ; [L906] int tmp ; [L910] FCALL select_helpers() [L911] FCALL select_features() [L912] CALL, EXPR valid_product() [L208] int retValue_acc ; [L211] retValue_acc = 1 [L212] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L912] RET, EXPR valid_product() [L912] tmp = valid_product() [L914] COND TRUE \read(tmp) [L916] FCALL setup() [L917] CALL runTest() [L899] CALL test() [L595] int splverifierCounter ; [L596] int tmp ; [L597] int tmp___0 ; [L598] int tmp___1 ; [L599] int tmp___2 ; [L602] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L604] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L606] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L612] tmp = __VERIFIER_nondet_int() [L614] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L616] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L75] COND TRUE waterLevel < 2 [L76] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L616] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L622] tmp___0 = __VERIFIER_nondet_int() [L624] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L632] tmp___2 = __VERIFIER_nondet_int() [L634] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L647] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L669] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L676] COND TRUE \read(systemActive) [L678] CALL processEnvironment() [L698] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L701] COND TRUE ! pumpRunning [L703] CALL, EXPR isHighWaterLevel() [L813] int retValue_acc ; [L814] int tmp ; [L815] int tmp___0 ; [L819] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L140] COND FALSE !(waterLevel < 2) [L144] retValue_acc = 0 [L145] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L819] RET, EXPR isHighWaterSensorDry() [L819] tmp = isHighWaterSensorDry() [L821] COND FALSE !(\read(tmp)) [L824] tmp___0 = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L826] retValue_acc = tmp___0 [L827] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L703] RET, EXPR isHighWaterLevel() [L703] tmp = isHighWaterLevel() [L705] COND TRUE \read(tmp) [L707] CALL activatePump() [L732] int tmp ; [L736] CALL, EXPR isMethaneAlarm() [L757] int retValue_acc ; [L761] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L761] RET, EXPR isMethaneLevelCritical() [L761] retValue_acc = isMethaneLevelCritical() [L763] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L736] RET, EXPR isMethaneAlarm() [L736] tmp = isMethaneAlarm() [L738] COND FALSE !(\read(tmp)) [L742] CALL activatePump__wrappee__highWaterSensor() [L726] pumpRunning = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L742] RET activatePump__wrappee__highWaterSensor() [L707] RET activatePump() [L678] RET processEnvironment() [L684] CALL __utac_acc__Specification4_spec__1() [L154] int tmp ; [L155] int tmp___0 ; [L159] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L159] RET, EXPR getWaterLevel() [L159] tmp = getWaterLevel() [L161] COND FALSE !(tmp == 0) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L684] RET __utac_acc__Specification4_spec__1() [L647] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L604] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L606] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L612] tmp = __VERIFIER_nondet_int() [L614] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L622] tmp___0 = __VERIFIER_nondet_int() [L624] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L632] tmp___2 = __VERIFIER_nondet_int() [L634] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L647] CALL timeShift() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L669] COND TRUE \read(pumpRunning) [L671] CALL lowerWaterLevel() [L63] COND TRUE waterLevel > 0 [L64] waterLevel = waterLevel - 1 VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L671] RET lowerWaterLevel() [L676] COND TRUE \read(systemActive) [L678] CALL processEnvironment() [L698] int tmp ; VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L701] COND FALSE !(! pumpRunning) VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L716] FCALL processEnvironment__wrappee__base() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L678] RET processEnvironment() [L684] CALL __utac_acc__Specification4_spec__1() [L154] int tmp ; [L155] int tmp___0 ; [L159] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); VAL [\old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L159] RET, EXPR getWaterLevel() [L159] tmp = getWaterLevel() [L161] COND FALSE !(tmp == 0) VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L684] RET __utac_acc__Specification4_spec__1() [L647] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L604] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L606] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L612] tmp = __VERIFIER_nondet_int() [L614] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L622] tmp___0 = __VERIFIER_nondet_int() [L624] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L632] tmp___2 = __VERIFIER_nondet_int() [L634] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L647] CALL timeShift() VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L669] COND TRUE \read(pumpRunning) [L671] CALL lowerWaterLevel() [L63] COND TRUE waterLevel > 0 [L64] waterLevel = waterLevel - 1 VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L671] RET lowerWaterLevel() [L676] COND TRUE \read(systemActive) [L678] CALL processEnvironment() [L698] int tmp ; VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L701] COND FALSE !(! pumpRunning) VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L716] FCALL processEnvironment__wrappee__base() VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L678] RET processEnvironment() [L684] CALL __utac_acc__Specification4_spec__1() [L154] int tmp ; [L155] int tmp___0 ; [L159] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); VAL [\old(pumpRunning)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L159] RET, EXPR getWaterLevel() [L159] tmp = getWaterLevel() [L161] COND TRUE tmp == 0 [L163] CALL, EXPR isPumpRunning() [L768] int retValue_acc ; [L771] retValue_acc = pumpRunning [L772] return (retValue_acc); VAL [\old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L163] RET, EXPR isPumpRunning() [L163] tmp___0 = isPumpRunning() [L165] COND TRUE \read(tmp___0) [L167] CALL __automaton_fail() [L221] reach_error() VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 11, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 929 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 913 mSDsluCounter, 2355 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1577 mSDsCounter, 135 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 592 IncrementalHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 135 mSolverCounterUnsat, 778 mSDtfsCounter, 592 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 232 GetRequests, 168 SyntacticMatches, 3 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=335occurred in iteration=10, InterpolantAutomatonStates: 71, 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, 133 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 522 NumberOfCodeBlocks, 522 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 486 ConstructedInterpolants, 0 QuantifiedInterpolants, 1062 SizeOfPredicates, 4 NumberOfNonLiveVariables, 396 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 51/64 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 RESULT: Ultimate proved your program to be incorrect! [2022-07-19 17:25:19,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE