./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product04.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf 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_product04.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 2ef680651bdd5006981e8c6524edc2b3eb658126 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 16:16:05,223 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 16:16:05,224 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 16:16:05,249 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 16:16:05,249 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 16:16:05,250 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 16:16:05,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 16:16:05,252 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 16:16:05,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 16:16:05,254 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 16:16:05,254 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 16:16:05,255 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 16:16:05,255 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 16:16:05,256 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 16:16:05,257 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 16:16:05,258 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 16:16:05,258 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 16:16:05,259 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 16:16:05,260 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 16:16:05,263 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 16:16:05,265 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 16:16:05,266 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 16:16:05,267 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 16:16:05,268 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 16:16:05,270 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 16:16:05,274 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 16:16:05,274 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 16:16:05,275 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 16:16:05,276 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 16:16:05,276 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 16:16:05,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 16:16:05,277 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 16:16:05,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 16:16:05,280 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 16:16:05,280 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 16:16:05,281 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 16:16:05,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 16:16:05,281 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 16:16:05,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 16:16:05,282 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 16:16:05,283 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 16:16:05,284 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 16:16:05,308 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 16:16:05,309 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 16:16:05,309 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 16:16:05,310 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 16:16:05,311 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 16:16:05,311 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 16:16:05,311 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 16:16:05,311 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 16:16:05,312 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 16:16:05,312 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 16:16:05,316 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 16:16:05,316 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 16:16:05,316 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 16:16:05,317 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 16:16:05,317 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 16:16:05,317 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 16:16:05,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 16:16:05,317 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 16:16:05,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 16:16:05,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 16:16:05,317 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 16:16:05,317 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 16:16:05,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 16:16:05,317 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 16:16:05,317 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 16:16:05,318 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 16:16:05,318 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 16:16:05,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 16:16:05,318 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 16:16:05,318 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 16:16:05,318 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ef680651bdd5006981e8c6524edc2b3eb658126 [2021-08-29 16:16:05,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 16:16:05,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 16:16:05,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 16:16:05,607 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 16:16:05,615 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 16:16:05,616 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product04.cil.c [2021-08-29 16:16:05,669 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d563eb771/e0d6f3fef81c4a6c8b32f1904704240e/FLAG47ecc4d73 [2021-08-29 16:16:06,079 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 16:16:06,079 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product04.cil.c [2021-08-29 16:16:06,097 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d563eb771/e0d6f3fef81c4a6c8b32f1904704240e/FLAG47ecc4d73 [2021-08-29 16:16:06,111 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d563eb771/e0d6f3fef81c4a6c8b32f1904704240e [2021-08-29 16:16:06,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 16:16:06,115 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 16:16:06,117 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 16:16:06,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 16:16:06,134 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 16:16:06,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 04:16:06" (1/1) ... [2021-08-29 16:16:06,136 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@710ca02a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:06, skipping insertion in model container [2021-08-29 16:16:06,136 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 04:16:06" (1/1) ... [2021-08-29 16:16:06,140 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 16:16:06,179 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 16:16:06,411 WARN L228 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_product04.cil.c[16373,16386] [2021-08-29 16:16:06,418 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 16:16:06,427 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 16:16:06,472 WARN L228 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_product04.cil.c[16373,16386] [2021-08-29 16:16:06,473 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 16:16:06,483 INFO L208 MainTranslator]: Completed translation [2021-08-29 16:16:06,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:06 WrapperNode [2021-08-29 16:16:06,483 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 16:16:06,484 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 16:16:06,484 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 16:16:06,484 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 16:16:06,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:06" (1/1) ... [2021-08-29 16:16:06,497 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:06" (1/1) ... [2021-08-29 16:16:06,517 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 16:16:06,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 16:16:06,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 16:16:06,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 16:16:06,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:06" (1/1) ... [2021-08-29 16:16:06,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:06" (1/1) ... [2021-08-29 16:16:06,525 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:06" (1/1) ... [2021-08-29 16:16:06,525 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:06" (1/1) ... [2021-08-29 16:16:06,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:06" (1/1) ... [2021-08-29 16:16:06,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:06" (1/1) ... [2021-08-29 16:16:06,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:06" (1/1) ... [2021-08-29 16:16:06,535 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 16:16:06,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 16:16:06,536 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 16:16:06,536 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 16:16:06,536 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:06" (1/1) ... [2021-08-29 16:16:06,541 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 16:16:06,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 16:16:06,574 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 16:16:06,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-29 16:16:06,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 16:16:06,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 16:16:06,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 16:16:06,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 16:16:06,937 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 16:16:06,937 INFO L299 CfgBuilder]: Removed 72 assume(true) statements. [2021-08-29 16:16:06,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:16:06 BoogieIcfgContainer [2021-08-29 16:16:06,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 16:16:06,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 16:16:06,941 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 16:16:06,942 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 16:16:06,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 04:16:06" (1/3) ... [2021-08-29 16:16:06,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65becf24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 04:16:06, skipping insertion in model container [2021-08-29 16:16:06,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:06" (2/3) ... [2021-08-29 16:16:06,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65becf24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 04:16:06, skipping insertion in model container [2021-08-29 16:16:06,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:16:06" (3/3) ... [2021-08-29 16:16:06,945 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product04.cil.c [2021-08-29 16:16:06,953 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 16:16:06,953 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-08-29 16:16:06,987 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 16:16:06,991 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-29 16:16:06,991 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-08-29 16:16:07,001 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 55 states have (on average 1.5818181818181818) internal successors, (87), 58 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:16:07,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-29 16:16:07,008 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:16:07,009 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 16:16:07,009 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:16:07,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:16:07,013 INFO L82 PathProgramCache]: Analyzing trace with hash 476294846, now seen corresponding path program 1 times [2021-08-29 16:16:07,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:16:07,019 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273071890] [2021-08-29 16:16:07,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:16:07,019 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:16:07,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:16:07,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:16:07,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:16:07,203 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273071890] [2021-08-29 16:16:07,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273071890] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:16:07,204 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:16:07,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 16:16:07,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213147055] [2021-08-29 16:16:07,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-29 16:16:07,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:16:07,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-29 16:16:07,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 16:16:07,225 INFO L87 Difference]: Start difference. First operand has 59 states, 55 states have (on average 1.5818181818181818) internal successors, (87), 58 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:16:07,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:16:07,385 INFO L93 Difference]: Finished difference Result 112 states and 167 transitions. [2021-08-29 16:16:07,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-29 16:16:07,387 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-08-29 16:16:07,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:16:07,391 INFO L225 Difference]: With dead ends: 112 [2021-08-29 16:16:07,391 INFO L226 Difference]: Without dead ends: 55 [2021-08-29 16:16:07,393 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.02ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 16:16:07,395 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 111.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.71ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 135.39ms IncrementalHoareTripleChecker+Time [2021-08-29 16:16:07,395 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 80 Unknown, 0 Unchecked, 0.71ms Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 135.39ms Time] [2021-08-29 16:16:07,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-08-29 16:16:07,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-08-29 16:16:07,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 52 states have (on average 1.4423076923076923) internal successors, (75), 54 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:16:07,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 75 transitions. [2021-08-29 16:16:07,439 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 75 transitions. Word has length 16 [2021-08-29 16:16:07,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:16:07,440 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 75 transitions. [2021-08-29 16:16:07,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:16:07,440 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 75 transitions. [2021-08-29 16:16:07,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-29 16:16:07,441 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:16:07,441 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 16:16:07,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 16:16:07,442 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:16:07,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:16:07,442 INFO L82 PathProgramCache]: Analyzing trace with hash -570462051, now seen corresponding path program 1 times [2021-08-29 16:16:07,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:16:07,443 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780511567] [2021-08-29 16:16:07,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:16:07,443 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:16:07,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:16:07,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:16:07,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:16:07,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780511567] [2021-08-29 16:16:07,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780511567] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:16:07,549 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:16:07,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 16:16:07,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428726939] [2021-08-29 16:16:07,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 16:16:07,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:16:07,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 16:16:07,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 16:16:07,550 INFO L87 Difference]: Start difference. First operand 55 states and 75 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:16:07,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:16:07,626 INFO L93 Difference]: Finished difference Result 55 states and 75 transitions. [2021-08-29 16:16:07,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 16:16:07,626 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-08-29 16:16:07,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:16:07,627 INFO L225 Difference]: With dead ends: 55 [2021-08-29 16:16:07,627 INFO L226 Difference]: Without dead ends: 29 [2021-08-29 16:16:07,627 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.88ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 16:16:07,628 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 33 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.42ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 70.02ms IncrementalHoareTripleChecker+Time [2021-08-29 16:16:07,628 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 0 Invalid, 45 Unknown, 0 Unchecked, 0.42ms Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 70.02ms Time] [2021-08-29 16:16:07,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-08-29 16:16:07,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-08-29 16:16:07,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 28 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:16:07,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 40 transitions. [2021-08-29 16:16:07,631 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 40 transitions. Word has length 17 [2021-08-29 16:16:07,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:16:07,632 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 40 transitions. [2021-08-29 16:16:07,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:16:07,632 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2021-08-29 16:16:07,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-29 16:16:07,632 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:16:07,633 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 16:16:07,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 16:16:07,634 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:16:07,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:16:07,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1160602349, now seen corresponding path program 1 times [2021-08-29 16:16:07,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:16:07,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966588720] [2021-08-29 16:16:07,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:16:07,635 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:16:07,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:16:07,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:16:07,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:16:07,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966588720] [2021-08-29 16:16:07,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966588720] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:16:07,720 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:16:07,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-29 16:16:07,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673855370] [2021-08-29 16:16:07,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 16:16:07,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:16:07,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 16:16:07,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-29 16:16:07,725 INFO L87 Difference]: Start difference. First operand 29 states and 40 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:16:07,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:16:07,876 INFO L93 Difference]: Finished difference Result 75 states and 108 transitions. [2021-08-29 16:16:07,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-29 16:16:07,876 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-08-29 16:16:07,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:16:07,877 INFO L225 Difference]: With dead ends: 75 [2021-08-29 16:16:07,877 INFO L226 Difference]: Without dead ends: 52 [2021-08-29 16:16:07,878 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 20.78ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-29 16:16:07,878 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 174 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 85.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.51ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 125.74ms IncrementalHoareTripleChecker+Time [2021-08-29 16:16:07,879 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 0 Invalid, 79 Unknown, 0 Unchecked, 1.51ms Time], IncrementalHoareTripleChecker [2 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 125.74ms Time] [2021-08-29 16:16:07,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-08-29 16:16:07,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48. [2021-08-29 16:16:07,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.4680851063829787) internal successors, (69), 47 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:16:07,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 69 transitions. [2021-08-29 16:16:07,884 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 69 transitions. Word has length 22 [2021-08-29 16:16:07,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:16:07,887 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 69 transitions. [2021-08-29 16:16:07,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:16:07,887 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 69 transitions. [2021-08-29 16:16:07,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-29 16:16:07,888 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:16:07,888 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 16:16:07,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-29 16:16:07,888 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:16:07,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:16:07,889 INFO L82 PathProgramCache]: Analyzing trace with hash 471853904, now seen corresponding path program 1 times [2021-08-29 16:16:07,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:16:07,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392134005] [2021-08-29 16:16:07,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:16:07,890 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:16:07,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:16:07,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:16:07,972 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:16:07,972 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392134005] [2021-08-29 16:16:07,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392134005] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:16:07,973 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:16:07,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-29 16:16:07,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830443045] [2021-08-29 16:16:07,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-29 16:16:07,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:16:07,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-29 16:16:07,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-29 16:16:07,974 INFO L87 Difference]: Start difference. First operand 48 states and 69 transitions. Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:16:08,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:16:08,390 INFO L93 Difference]: Finished difference Result 281 states and 435 transitions. [2021-08-29 16:16:08,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-29 16:16:08,391 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-08-29 16:16:08,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:16:08,393 INFO L225 Difference]: With dead ends: 281 [2021-08-29 16:16:08,393 INFO L226 Difference]: Without dead ends: 239 [2021-08-29 16:16:08,394 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 74.10ms TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2021-08-29 16:16:08,395 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 245 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 230.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.41ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 332.14ms IncrementalHoareTripleChecker+Time [2021-08-29 16:16:08,395 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 0 Invalid, 433 Unknown, 0 Unchecked, 3.41ms Time], IncrementalHoareTripleChecker [15 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 332.14ms Time] [2021-08-29 16:16:08,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2021-08-29 16:16:08,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 118. [2021-08-29 16:16:08,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 117 states have (on average 1.4444444444444444) internal successors, (169), 117 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:16:08,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 169 transitions. [2021-08-29 16:16:08,409 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 169 transitions. Word has length 22 [2021-08-29 16:16:08,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:16:08,410 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 169 transitions. [2021-08-29 16:16:08,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:16:08,410 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 169 transitions. [2021-08-29 16:16:08,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-29 16:16:08,411 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:16:08,411 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 16:16:08,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-29 16:16:08,411 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:16:08,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:16:08,412 INFO L82 PathProgramCache]: Analyzing trace with hash 378913563, now seen corresponding path program 1 times [2021-08-29 16:16:08,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:16:08,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339034233] [2021-08-29 16:16:08,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:16:08,412 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:16:08,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:16:08,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:16:08,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:16:08,446 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339034233] [2021-08-29 16:16:08,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339034233] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:16:08,447 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:16:08,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 16:16:08,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395076840] [2021-08-29 16:16:08,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 16:16:08,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:16:08,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 16:16:08,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 16:16:08,449 INFO L87 Difference]: Start difference. First operand 118 states and 169 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:16:08,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:16:08,507 INFO L93 Difference]: Finished difference Result 224 states and 322 transitions. [2021-08-29 16:16:08,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 16:16:08,508 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-08-29 16:16:08,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:16:08,509 INFO L225 Difference]: With dead ends: 224 [2021-08-29 16:16:08,510 INFO L226 Difference]: Without dead ends: 112 [2021-08-29 16:16:08,512 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.57ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 16:16:08,521 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 22 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.41ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.60ms IncrementalHoareTripleChecker+Time [2021-08-29 16:16:08,521 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 0 Invalid, 37 Unknown, 0 Unchecked, 0.41ms Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 49.60ms Time] [2021-08-29 16:16:08,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2021-08-29 16:16:08,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2021-08-29 16:16:08,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 111 states have (on average 1.3513513513513513) internal successors, (150), 111 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:16:08,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 150 transitions. [2021-08-29 16:16:08,535 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 150 transitions. Word has length 23 [2021-08-29 16:16:08,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:16:08,536 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 150 transitions. [2021-08-29 16:16:08,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:16:08,536 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 150 transitions. [2021-08-29 16:16:08,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-08-29 16:16:08,540 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:16:08,540 INFO L513 BasicCegarLoop]: 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] [2021-08-29 16:16:08,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-29 16:16:08,540 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:16:08,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:16:08,541 INFO L82 PathProgramCache]: Analyzing trace with hash -699051511, now seen corresponding path program 1 times [2021-08-29 16:16:08,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:16:08,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118300414] [2021-08-29 16:16:08,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:16:08,542 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:16:08,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:16:08,583 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:16:08,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:16:08,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118300414] [2021-08-29 16:16:08,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118300414] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 16:16:08,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728748213] [2021-08-29 16:16:08,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:16:08,584 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 16:16:08,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 16:16:08,589 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-29 16:16:08,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-29 16:16:08,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:16:08,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-29 16:16:08,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 16:16:08,819 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:16:08,819 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-08-29 16:16:08,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728748213] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:16:08,820 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-29 16:16:08,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2021-08-29 16:16:08,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412445687] [2021-08-29 16:16:08,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 16:16:08,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:16:08,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 16:16:08,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 16:16:08,821 INFO L87 Difference]: Start difference. First operand 112 states and 150 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:16:08,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:16:08,909 INFO L93 Difference]: Finished difference Result 146 states and 197 transitions. [2021-08-29 16:16:08,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 16:16:08,909 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-08-29 16:16:08,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:16:08,909 INFO L225 Difference]: With dead ends: 146 [2021-08-29 16:16:08,909 INFO L226 Difference]: Without dead ends: 0 [2021-08-29 16:16:08,910 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.76ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 16:16:08,914 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 31 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.33ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 80.31ms IncrementalHoareTripleChecker+Time [2021-08-29 16:16:08,914 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 0 Invalid, 84 Unknown, 0 Unchecked, 0.33ms Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 80.31ms Time] [2021-08-29 16:16:08,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-29 16:16:08,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-29 16:16:08,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:16:08,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-29 16:16:08,915 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2021-08-29 16:16:08,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:16:08,915 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-29 16:16:08,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:16:08,915 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-29 16:16:08,915 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-29 16:16:08,917 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-08-29 16:16:08,917 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2021-08-29 16:16:08,917 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2021-08-29 16:16:08,937 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-29 16:16:09,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-08-29 16:16:09,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-29 16:16:09,137 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:09,139 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:09,140 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:09,140 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:09,150 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:09,151 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:09,151 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:09,151 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:09,152 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:09,153 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:09,153 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:09,158 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:09,159 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:09,160 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:09,160 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:09,160 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:09,163 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:09,173 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:09,174 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:09,174 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:09,179 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:09,179 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:09,184 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:09,184 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:09,185 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:09,187 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:09,584 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 840) no Hoare annotation was computed. [2021-08-29 16:16:09,584 INFO L854 garLoopResultBuilder]: At program point L168(lines 1 869) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2021-08-29 16:16:09,584 INFO L858 garLoopResultBuilder]: For program point L449(lines 449 455) no Hoare annotation was computed. [2021-08-29 16:16:09,584 INFO L854 garLoopResultBuilder]: At program point L449-1(lines 278 284) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (= ULTIMATE.start_main_~tmp~0 1) .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2) (and .cse0 .cse1 .cse2 (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0) (= ~waterLevel~0 1)))) [2021-08-29 16:16:09,584 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-29 16:16:09,584 INFO L854 garLoopResultBuilder]: At program point L285(lines 285 291) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (= ULTIMATE.start_main_~tmp~0 1) .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2) (and .cse0 .cse1 .cse2 (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0) (= ~waterLevel~0 1)))) [2021-08-29 16:16:09,585 INFO L854 garLoopResultBuilder]: At program point L285-1(lines 285 291) the Hoare annotation is: false [2021-08-29 16:16:09,585 INFO L854 garLoopResultBuilder]: At program point L285-2(lines 285 291) the Hoare annotation is: false [2021-08-29 16:16:09,585 INFO L854 garLoopResultBuilder]: At program point L54-2(lines 54 68) the Hoare annotation is: false [2021-08-29 16:16:09,585 INFO L858 garLoopResultBuilder]: For program point L203(lines 203 207) no Hoare annotation was computed. [2021-08-29 16:16:09,585 INFO L858 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2021-08-29 16:16:09,585 INFO L854 garLoopResultBuilder]: At program point L105(lines 101 107) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res| 1) (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2021-08-29 16:16:09,585 INFO L854 garLoopResultBuilder]: At program point L337(lines 332 340) the Hoare annotation is: false [2021-08-29 16:16:09,585 INFO L854 garLoopResultBuilder]: At program point L337-1(lines 332 340) the Hoare annotation is: false [2021-08-29 16:16:09,586 INFO L854 garLoopResultBuilder]: At program point L337-2(lines 332 340) the Hoare annotation is: false [2021-08-29 16:16:09,586 INFO L858 garLoopResultBuilder]: For program point L421(lines 421 427) no Hoare annotation was computed. [2021-08-29 16:16:09,586 INFO L854 garLoopResultBuilder]: At program point L421-1(lines 421 427) the Hoare annotation is: (let ((.cse3 (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0)) (.cse4 (= ~waterLevel~0 1)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (not (= 0 ~systemActive~0))) (and .cse0 .cse1 (not (= |ULTIMATE.start_getWaterLevel_#res| 0)) .cse2 .cse3 .cse4 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~5 0))) (and (= ULTIMATE.start_main_~tmp~0 1) .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2))) [2021-08-29 16:16:09,586 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-29 16:16:09,586 INFO L858 garLoopResultBuilder]: For program point L58(lines 58 62) no Hoare annotation was computed. [2021-08-29 16:16:09,586 INFO L858 garLoopResultBuilder]: For program point L58-1(lines 278 284) no Hoare annotation was computed. [2021-08-29 16:16:09,586 INFO L861 garLoopResultBuilder]: At program point L141(lines 122 144) the Hoare annotation is: true [2021-08-29 16:16:09,586 INFO L858 garLoopResultBuilder]: For program point L191(lines 191 195) no Hoare annotation was computed. [2021-08-29 16:16:09,587 INFO L858 garLoopResultBuilder]: For program point L191-3(lines 191 195) no Hoare annotation was computed. [2021-08-29 16:16:09,587 INFO L858 garLoopResultBuilder]: For program point L191-6(lines 191 195) no Hoare annotation was computed. [2021-08-29 16:16:09,587 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 840) no Hoare annotation was computed. [2021-08-29 16:16:09,587 INFO L858 garLoopResultBuilder]: For program point L853(lines 853 866) no Hoare annotation was computed. [2021-08-29 16:16:09,587 INFO L854 garLoopResultBuilder]: At program point L853-1(lines 1 869) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= |ULTIMATE.start_getWaterLevel_#res| 0))) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1)) (.cse5 (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0)) (.cse6 (= ~waterLevel~0 1)) (.cse4 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~5 0)))) (or (and (= ULTIMATE.start_main_~tmp~0 1) .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse3 .cse5 .cse6 (not (= 0 ~systemActive~0))) (and .cse0 .cse1 .cse2 .cse3 .cse5 .cse6 .cse4))) [2021-08-29 16:16:09,587 INFO L858 garLoopResultBuilder]: For program point L853-2(lines 853 866) no Hoare annotation was computed. [2021-08-29 16:16:09,587 INFO L854 garLoopResultBuilder]: At program point L853-3(lines 1 869) the Hoare annotation is: false [2021-08-29 16:16:09,587 INFO L858 garLoopResultBuilder]: For program point L853-4(lines 853 866) no Hoare annotation was computed. [2021-08-29 16:16:09,588 INFO L854 garLoopResultBuilder]: At program point L176(lines 171 179) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2021-08-29 16:16:09,588 INFO L854 garLoopResultBuilder]: At program point L853-5(lines 1 869) the Hoare annotation is: false [2021-08-29 16:16:09,588 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-29 16:16:09,588 INFO L858 garLoopResultBuilder]: For program point L441(lines 441 456) no Hoare annotation was computed. [2021-08-29 16:16:09,588 INFO L854 garLoopResultBuilder]: At program point L260(lines 255 263) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= |ULTIMATE.start_getWaterLevel_#res| 0))) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (= ULTIMATE.start_main_~tmp~0 1) .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse3 (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0) (= ~waterLevel~0 1)))) [2021-08-29 16:16:09,588 INFO L854 garLoopResultBuilder]: At program point L260-1(lines 255 263) the Hoare annotation is: false [2021-08-29 16:16:09,593 INFO L854 garLoopResultBuilder]: At program point L260-2(lines 255 263) the Hoare annotation is: false [2021-08-29 16:16:09,593 INFO L854 garLoopResultBuilder]: At program point L278(lines 277 296) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (= ULTIMATE.start_main_~tmp~0 1) .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2) (and .cse0 .cse1 .cse2 (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0) (= ~waterLevel~0 1)))) [2021-08-29 16:16:09,593 INFO L858 garLoopResultBuilder]: For program point L278-1(lines 278 284) no Hoare annotation was computed. [2021-08-29 16:16:09,593 INFO L854 garLoopResultBuilder]: At program point L278-2(lines 277 296) the Hoare annotation is: false [2021-08-29 16:16:09,593 INFO L854 garLoopResultBuilder]: At program point L278-3(lines 277 296) the Hoare annotation is: false [2021-08-29 16:16:09,593 INFO L858 garLoopResultBuilder]: For program point L840(line 840) no Hoare annotation was computed. [2021-08-29 16:16:09,593 INFO L858 garLoopResultBuilder]: For program point L840-1(line 840) no Hoare annotation was computed. [2021-08-29 16:16:09,594 INFO L858 garLoopResultBuilder]: For program point L840-2(line 840) no Hoare annotation was computed. [2021-08-29 16:16:09,594 INFO L858 garLoopResultBuilder]: For program point L857(lines 857 863) no Hoare annotation was computed. [2021-08-29 16:16:09,594 INFO L858 garLoopResultBuilder]: For program point L857-2(lines 857 863) no Hoare annotation was computed. [2021-08-29 16:16:09,594 INFO L858 garLoopResultBuilder]: For program point L857-4(lines 857 863) no Hoare annotation was computed. [2021-08-29 16:16:09,594 INFO L854 garLoopResultBuilder]: At program point L461(lines 410 462) the Hoare annotation is: false [2021-08-29 16:16:09,594 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-29 16:16:09,594 INFO L858 garLoopResultBuilder]: For program point L412(lines 411 460) no Hoare annotation was computed. [2021-08-29 16:16:09,595 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 840) no Hoare annotation was computed. [2021-08-29 16:16:09,595 INFO L858 garLoopResultBuilder]: For program point L132(lines 132 139) no Hoare annotation was computed. [2021-08-29 16:16:09,595 INFO L861 garLoopResultBuilder]: At program point L132-1(lines 132 139) the Hoare annotation is: true [2021-08-29 16:16:09,596 INFO L858 garLoopResultBuilder]: For program point L413(lines 413 417) no Hoare annotation was computed. [2021-08-29 16:16:09,596 INFO L858 garLoopResultBuilder]: For program point L215(lines 215 219) no Hoare annotation was computed. [2021-08-29 16:16:09,596 INFO L858 garLoopResultBuilder]: For program point L381(lines 381 387) no Hoare annotation was computed. [2021-08-29 16:16:09,596 INFO L854 garLoopResultBuilder]: At program point L381-1(lines 381 387) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (= ULTIMATE.start_main_~tmp~0 1) .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2) (and .cse0 .cse1 .cse2 (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0) (= ~waterLevel~0 1)))) [2021-08-29 16:16:09,596 INFO L858 garLoopResultBuilder]: For program point L431(lines 431 437) no Hoare annotation was computed. [2021-08-29 16:16:09,596 INFO L854 garLoopResultBuilder]: At program point L431-1(lines 431 437) the Hoare annotation is: (let ((.cse3 (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0)) (.cse4 (= ~waterLevel~0 1)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (not (= 0 ~systemActive~0))) (and .cse0 .cse1 (not (= |ULTIMATE.start_getWaterLevel_#res| 0)) .cse2 .cse3 .cse4 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~5 0))) (and (= ULTIMATE.start_main_~tmp~0 1) .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2))) [2021-08-29 16:16:09,601 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 16:16:09,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 04:16:09 BoogieIcfgContainer [2021-08-29 16:16:09,614 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 16:16:09,614 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 16:16:09,614 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 16:16:09,614 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 16:16:09,615 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:16:06" (3/4) ... [2021-08-29 16:16:09,617 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-29 16:16:09,625 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-08-29 16:16:09,625 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-08-29 16:16:09,626 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-08-29 16:16:09,626 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-08-29 16:16:09,626 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-08-29 16:16:09,626 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 16:16:09,627 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 16:16:09,640 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && \result == 1) && waterLevel == 1) && !(0 == systemActive) [2021-08-29 16:16:09,640 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && \result == 1) && tmp == waterLevel) && waterLevel == 1) && !(0 == systemActive) [2021-08-29 16:16:09,640 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 2 <= waterLevel) && !(\result == 0)) && \result == 1) && !(tmp == 0)) || (((((splverifierCounter == 0 && pumpRunning == 0) && \result == 1) && tmp == waterLevel) && waterLevel == 1) && !(0 == systemActive))) || ((((((splverifierCounter == 0 && pumpRunning == 0) && !(\result == 0)) && \result == 1) && tmp == waterLevel) && waterLevel == 1) && !(tmp == 0)) [2021-08-29 16:16:09,641 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0 && pumpRunning == 0) && \result == 1) && tmp == waterLevel) && waterLevel == 1) && !(0 == systemActive)) || ((((((splverifierCounter == 0 && pumpRunning == 0) && !(\result == 0)) && \result == 1) && tmp == waterLevel) && waterLevel == 1) && !(tmp == 0))) || ((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 2 <= waterLevel) && \result == 1) [2021-08-29 16:16:09,641 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0 && pumpRunning == 0) && \result == 1) && tmp == waterLevel) && waterLevel == 1) && !(0 == systemActive)) || ((((((splverifierCounter == 0 && pumpRunning == 0) && !(\result == 0)) && \result == 1) && tmp == waterLevel) && waterLevel == 1) && !(tmp == 0))) || ((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 2 <= waterLevel) && \result == 1) [2021-08-29 16:16:09,641 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 2 <= waterLevel) && \result == 1) || ((((splverifierCounter == 0 && pumpRunning == 0) && \result == 1) && tmp == waterLevel) && waterLevel == 1) [2021-08-29 16:16:09,641 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 2 <= waterLevel) && \result == 1) || ((((splverifierCounter == 0 && pumpRunning == 0) && \result == 1) && tmp == waterLevel) && waterLevel == 1) [2021-08-29 16:16:09,641 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 2 <= waterLevel) && \result == 1) || ((((splverifierCounter == 0 && pumpRunning == 0) && \result == 1) && tmp == waterLevel) && waterLevel == 1) [2021-08-29 16:16:09,642 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 2 <= waterLevel) && \result == 1) || ((((splverifierCounter == 0 && pumpRunning == 0) && \result == 1) && tmp == waterLevel) && waterLevel == 1) [2021-08-29 16:16:09,642 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 2 <= waterLevel) && !(\result == 0)) && \result == 1) || (((((splverifierCounter == 0 && pumpRunning == 0) && !(\result == 0)) && \result == 1) && tmp == waterLevel) && waterLevel == 1) [2021-08-29 16:16:09,656 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 16:16:09,656 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 16:16:09,657 INFO L158 Benchmark]: Toolchain (without parser) took 3541.75ms. Allocated memory was 56.6MB in the beginning and 88.1MB in the end (delta: 31.5MB). Free memory was 34.7MB in the beginning and 61.0MB in the end (delta: -26.4MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2021-08-29 16:16:09,657 INFO L158 Benchmark]: CDTParser took 0.56ms. Allocated memory is still 56.6MB. Free memory was 38.8MB in the beginning and 38.7MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 16:16:09,657 INFO L158 Benchmark]: CACSL2BoogieTranslator took 367.07ms. Allocated memory is still 56.6MB. Free memory was 34.5MB in the beginning and 32.0MB in the end (delta: 2.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-29 16:16:09,657 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.02ms. Allocated memory is still 56.6MB. Free memory was 32.0MB in the beginning and 29.4MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 16:16:09,658 INFO L158 Benchmark]: Boogie Preprocessor took 17.54ms. Allocated memory is still 56.6MB. Free memory was 29.4MB in the beginning and 27.6MB in the end (delta: 1.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-29 16:16:09,658 INFO L158 Benchmark]: RCFGBuilder took 402.94ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 27.4MB in the beginning and 40.0MB in the end (delta: -12.6MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2021-08-29 16:16:09,658 INFO L158 Benchmark]: TraceAbstraction took 2674.38ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 39.6MB in the beginning and 65.9MB in the end (delta: -26.3MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. [2021-08-29 16:16:09,658 INFO L158 Benchmark]: Witness Printer took 42.19ms. Allocated memory is still 88.1MB. Free memory was 65.9MB in the beginning and 61.0MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-29 16:16:09,659 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56ms. Allocated memory is still 56.6MB. Free memory was 38.8MB in the beginning and 38.7MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 367.07ms. Allocated memory is still 56.6MB. Free memory was 34.5MB in the beginning and 32.0MB in the end (delta: 2.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.02ms. Allocated memory is still 56.6MB. Free memory was 32.0MB in the beginning and 29.4MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.54ms. Allocated memory is still 56.6MB. Free memory was 29.4MB in the beginning and 27.6MB in the end (delta: 1.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 402.94ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 27.4MB in the beginning and 40.0MB in the end (delta: -12.6MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2674.38ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 39.6MB in the beginning and 65.9MB in the end (delta: -26.3MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. * Witness Printer took 42.19ms. Allocated memory is still 88.1MB. Free memory was 65.9MB in the beginning and 61.0MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 840]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 840]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 840]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 59 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 2614.47ms, OverallIterations: 6, TraceHistogramMax: 2, EmptinessCheckTime: 16.03ms, AutomataDifference: 1015.83ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 450.29ms, InitialAbstractionConstructionTime: 7.45ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 505 SdHoareTripleChecker+Valid, 793.20ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 505 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 571.79ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 354 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 739 IncrementalHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 0 mSDtfsCounter, 739 mSolverCounterSat, 6.78ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 121.11ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=118occurred in iteration=4, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 53.90ms AutomataMinimizationTime, 6 MinimizatonAttempts, 125 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 26 LocationsWithAnnotation, 26 PreInvPairs, 58 NumberOfFragments, 421 HoareAnnotationTreeSize, 26 FomulaSimplifications, 1196 FormulaSimplificationTreeSizeReduction, 54.45ms HoareSimplificationTime, 26 FomulaSimplificationsInter, 149 FormulaSimplificationTreeSizeReductionInter, 388.21ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 39.73ms SsaConstructionTime, 203.14ms SatisfiabilityAnalysisTime, 410.94ms InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 167 ConstructedInterpolants, 0 QuantifiedInterpolants, 355 SizeOfPredicates, 0 NumberOfNonLiveVariables, 374 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 23/28 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 277]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 410]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 431]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0 && pumpRunning == 0) && \result == 1) && tmp == waterLevel) && waterLevel == 1) && !(0 == systemActive)) || ((((((splverifierCounter == 0 && pumpRunning == 0) && !(\result == 0)) && \result == 1) && tmp == waterLevel) && waterLevel == 1) && !(tmp == 0))) || ((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 2 <= waterLevel) && \result == 1) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 332]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 171]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && \result == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 122]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 255]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 285]: Loop Invariant Derived loop invariant: ((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 2 <= waterLevel) && \result == 1) || ((((splverifierCounter == 0 && pumpRunning == 0) && \result == 1) && tmp == waterLevel) && waterLevel == 1) - InvariantResult [Line: 285]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && \result == 1) && tmp == waterLevel) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 332]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 285]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 2 <= waterLevel) && !(\result == 0)) && \result == 1) && !(tmp == 0)) || (((((splverifierCounter == 0 && pumpRunning == 0) && \result == 1) && tmp == waterLevel) && waterLevel == 1) && !(0 == systemActive))) || ((((((splverifierCounter == 0 && pumpRunning == 0) && !(\result == 0)) && \result == 1) && tmp == waterLevel) && waterLevel == 1) && !(tmp == 0)) - InvariantResult [Line: 421]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0 && pumpRunning == 0) && \result == 1) && tmp == waterLevel) && waterLevel == 1) && !(0 == systemActive)) || ((((((splverifierCounter == 0 && pumpRunning == 0) && !(\result == 0)) && \result == 1) && tmp == waterLevel) && waterLevel == 1) && !(tmp == 0))) || ((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 2 <= waterLevel) && \result == 1) - InvariantResult [Line: 255]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 278]: Loop Invariant Derived loop invariant: ((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 2 <= waterLevel) && \result == 1) || ((((splverifierCounter == 0 && pumpRunning == 0) && \result == 1) && tmp == waterLevel) && waterLevel == 1) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 332]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 381]: Loop Invariant Derived loop invariant: ((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 2 <= waterLevel) && \result == 1) || ((((splverifierCounter == 0 && pumpRunning == 0) && \result == 1) && tmp == waterLevel) && waterLevel == 1) - InvariantResult [Line: 255]: Loop Invariant Derived loop invariant: (((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 2 <= waterLevel) && !(\result == 0)) && \result == 1) || (((((splverifierCounter == 0 && pumpRunning == 0) && !(\result == 0)) && \result == 1) && tmp == waterLevel) && waterLevel == 1) - InvariantResult [Line: 277]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 277]: Loop Invariant Derived loop invariant: ((((tmp == 1 && splverifierCounter == 0) && pumpRunning == 0) && 2 <= waterLevel) && \result == 1) || ((((splverifierCounter == 0 && pumpRunning == 0) && \result == 1) && tmp == waterLevel) && waterLevel == 1) RESULT: Ultimate proved your program to be correct! [2021-08-29 16:16:09,695 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...