./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product10.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec 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_product10.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 2b192e470c41b75933f65965ba2800987829e5a8 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 08:44:32,484 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 08:44:32,485 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 08:44:32,518 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 08:44:32,518 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 08:44:32,522 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 08:44:32,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 08:44:32,528 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 08:44:32,536 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 08:44:32,540 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 08:44:32,541 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 08:44:32,544 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 08:44:32,545 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 08:44:32,547 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 08:44:32,549 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 08:44:32,552 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 08:44:32,553 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 08:44:32,554 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 08:44:32,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 08:44:32,562 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 08:44:32,563 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 08:44:32,564 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 08:44:32,566 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 08:44:32,567 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 08:44:32,573 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 08:44:32,573 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 08:44:32,573 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 08:44:32,575 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 08:44:32,575 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 08:44:32,576 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 08:44:32,576 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 08:44:32,577 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 08:44:32,578 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 08:44:32,579 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 08:44:32,580 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 08:44:32,580 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 08:44:32,581 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 08:44:32,581 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 08:44:32,581 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 08:44:32,583 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 08:44:32,584 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 08:44:32,588 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 08:44:32,631 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 08:44:32,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 08:44:32,632 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 08:44:32,632 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 08:44:32,634 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 08:44:32,634 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 08:44:32,634 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 08:44:32,635 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 08:44:32,635 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 08:44:32,635 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 08:44:32,636 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 08:44:32,636 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 08:44:32,636 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 08:44:32,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 08:44:32,636 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 08:44:32,636 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 08:44:32,637 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 08:44:32,637 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 08:44:32,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 08:44:32,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 08:44:32,637 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 08:44:32,637 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 08:44:32,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 08:44:32,638 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 08:44:32,638 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 08:44:32,638 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 08:44:32,638 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 08:44:32,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 08:44:32,638 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 08:44:32,638 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 08:44:32,638 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b192e470c41b75933f65965ba2800987829e5a8 [2021-08-26 08:44:32,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 08:44:32,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 08:44:32,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 08:44:32,962 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 08:44:32,964 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 08:44:32,965 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product10.cil.c [2021-08-26 08:44:33,025 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69ec90824/987c7c7620074229b1388e76a9b0eae0/FLAGb9a63c90c [2021-08-26 08:44:33,493 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 08:44:33,495 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product10.cil.c [2021-08-26 08:44:33,509 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69ec90824/987c7c7620074229b1388e76a9b0eae0/FLAGb9a63c90c [2021-08-26 08:44:33,829 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69ec90824/987c7c7620074229b1388e76a9b0eae0 [2021-08-26 08:44:33,831 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 08:44:33,833 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 08:44:33,835 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 08:44:33,835 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 08:44:33,838 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 08:44:33,839 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:44:33" (1/1) ... [2021-08-26 08:44:33,840 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@186499f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:33, skipping insertion in model container [2021-08-26 08:44:33,840 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:44:33" (1/1) ... [2021-08-26 08:44:33,846 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 08:44:33,895 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 08:44:34,114 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_product10.cil.c[11394,11407] [2021-08-26 08:44:34,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 08:44:34,148 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 08:44:34,210 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_product10.cil.c[11394,11407] [2021-08-26 08:44:34,227 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 08:44:34,242 INFO L208 MainTranslator]: Completed translation [2021-08-26 08:44:34,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:34 WrapperNode [2021-08-26 08:44:34,243 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 08:44:34,244 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 08:44:34,244 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 08:44:34,244 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 08:44:34,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:34" (1/1) ... [2021-08-26 08:44:34,262 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:34" (1/1) ... [2021-08-26 08:44:34,296 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 08:44:34,297 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 08:44:34,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 08:44:34,297 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 08:44:34,303 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:34" (1/1) ... [2021-08-26 08:44:34,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:34" (1/1) ... [2021-08-26 08:44:34,307 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:34" (1/1) ... [2021-08-26 08:44:34,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:34" (1/1) ... [2021-08-26 08:44:34,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:34" (1/1) ... [2021-08-26 08:44:34,321 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:34" (1/1) ... [2021-08-26 08:44:34,323 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:34" (1/1) ... [2021-08-26 08:44:34,326 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 08:44:34,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 08:44:34,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 08:44:34,327 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 08:44:34,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:34" (1/1) ... [2021-08-26 08:44:34,360 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 08:44:34,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 08:44:34,378 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) [2021-08-26 08:44:34,411 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 [2021-08-26 08:44:34,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 08:44:34,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 08:44:34,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 08:44:34,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 08:44:35,057 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 08:44:35,058 INFO L299 CfgBuilder]: Removed 68 assume(true) statements. [2021-08-26 08:44:35,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:44:35 BoogieIcfgContainer [2021-08-26 08:44:35,059 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 08:44:35,061 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 08:44:35,061 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 08:44:35,063 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 08:44:35,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 08:44:33" (1/3) ... [2021-08-26 08:44:35,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36d40b3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:44:35, skipping insertion in model container [2021-08-26 08:44:35,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:34" (2/3) ... [2021-08-26 08:44:35,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36d40b3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:44:35, skipping insertion in model container [2021-08-26 08:44:35,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:44:35" (3/3) ... [2021-08-26 08:44:35,065 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product10.cil.c [2021-08-26 08:44:35,069 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 08:44:35,070 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-08-26 08:44:35,105 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 08:44:35,110 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 [2021-08-26 08:44:35,111 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-08-26 08:44:35,123 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 53 states have (on average 1.5849056603773586) internal successors, (84), 56 states have internal predecessors, (84), 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) [2021-08-26 08:44:35,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-26 08:44:35,127 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:44:35,127 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 08:44:35,128 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:44:35,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:44:35,132 INFO L82 PathProgramCache]: Analyzing trace with hash 1537784819, now seen corresponding path program 1 times [2021-08-26 08:44:35,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:44:35,140 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720497453] [2021-08-26 08:44:35,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:44:35,140 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:44:35,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:44:35,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:44:35,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:44:35,377 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720497453] [2021-08-26 08:44:35,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720497453] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:44:35,377 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:44:35,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-26 08:44:35,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295696936] [2021-08-26 08:44:35,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 08:44:35,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:44:35,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 08:44:35,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 08:44:35,404 INFO L87 Difference]: Start difference. First operand has 57 states, 53 states have (on average 1.5849056603773586) internal successors, (84), 56 states have internal predecessors, (84), 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) [2021-08-26 08:44:35,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:44:35,422 INFO L93 Difference]: Finished difference Result 108 states and 161 transitions. [2021-08-26 08:44:35,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 08:44:35,423 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 [2021-08-26 08:44:35,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:44:35,430 INFO L225 Difference]: With dead ends: 108 [2021-08-26 08:44:35,430 INFO L226 Difference]: Without dead ends: 53 [2021-08-26 08:44:35,432 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 08:44:35,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-08-26 08:44:35,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-08-26 08:44:35,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 50 states have (on average 1.44) internal successors, (72), 52 states have internal predecessors, (72), 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) [2021-08-26 08:44:35,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 72 transitions. [2021-08-26 08:44:35,468 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 72 transitions. Word has length 16 [2021-08-26 08:44:35,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:44:35,468 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 72 transitions. [2021-08-26 08:44:35,469 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) [2021-08-26 08:44:35,469 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 72 transitions. [2021-08-26 08:44:35,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-26 08:44:35,470 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:44:35,470 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 08:44:35,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 08:44:35,471 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:44:35,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:44:35,475 INFO L82 PathProgramCache]: Analyzing trace with hash 1979941713, now seen corresponding path program 1 times [2021-08-26 08:44:35,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:44:35,475 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616910582] [2021-08-26 08:44:35,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:44:35,476 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:44:35,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:44:35,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:44:35,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:44:35,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616910582] [2021-08-26 08:44:35,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616910582] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:44:35,570 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:44:35,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-26 08:44:35,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064290578] [2021-08-26 08:44:35,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 08:44:35,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:44:35,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 08:44:35,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:44:35,572 INFO L87 Difference]: Start difference. First operand 53 states and 72 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) [2021-08-26 08:44:35,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:44:35,579 INFO L93 Difference]: Finished difference Result 53 states and 72 transitions. [2021-08-26 08:44:35,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 08:44:35,580 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 [2021-08-26 08:44:35,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:44:35,580 INFO L225 Difference]: With dead ends: 53 [2021-08-26 08:44:35,580 INFO L226 Difference]: Without dead ends: 27 [2021-08-26 08:44:35,581 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:44:35,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-08-26 08:44:35,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-08-26 08:44:35,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 26 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) [2021-08-26 08:44:35,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2021-08-26 08:44:35,585 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 17 [2021-08-26 08:44:35,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:44:35,585 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2021-08-26 08:44:35,585 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) [2021-08-26 08:44:35,586 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2021-08-26 08:44:35,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-26 08:44:35,586 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:44:35,586 INFO L512 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] [2021-08-26 08:44:35,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-26 08:44:35,587 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:44:35,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:44:35,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1992386864, now seen corresponding path program 1 times [2021-08-26 08:44:35,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:44:35,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106200250] [2021-08-26 08:44:35,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:44:35,588 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:44:35,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:44:35,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:44:35,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:44:35,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106200250] [2021-08-26 08:44:35,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106200250] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:44:35,702 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:44:35,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-26 08:44:35,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594404579] [2021-08-26 08:44:35,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-26 08:44:35,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:44:35,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-26 08:44:35,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-26 08:44:35,708 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 6 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) [2021-08-26 08:44:35,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:44:35,907 INFO L93 Difference]: Finished difference Result 142 states and 221 transitions. [2021-08-26 08:44:35,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-26 08:44:35,909 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 6 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 [2021-08-26 08:44:35,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:44:35,911 INFO L225 Difference]: With dead ends: 142 [2021-08-26 08:44:35,911 INFO L226 Difference]: Without dead ends: 121 [2021-08-26 08:44:35,912 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 83.0ms TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2021-08-26 08:44:35,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2021-08-26 08:44:35,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 60. [2021-08-26 08:44:35,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 59 states have (on average 1.423728813559322) internal successors, (84), 59 states have internal predecessors, (84), 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) [2021-08-26 08:44:35,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 84 transitions. [2021-08-26 08:44:35,921 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 84 transitions. Word has length 22 [2021-08-26 08:44:35,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:44:35,922 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 84 transitions. [2021-08-26 08:44:35,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 6 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) [2021-08-26 08:44:35,922 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 84 transitions. [2021-08-26 08:44:35,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-26 08:44:35,923 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:44:35,923 INFO L512 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] [2021-08-26 08:44:35,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-26 08:44:35,924 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:44:35,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:44:35,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1296861074, now seen corresponding path program 1 times [2021-08-26 08:44:35,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:44:35,925 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712902882] [2021-08-26 08:44:35,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:44:35,925 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:44:35,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:44:35,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:44:35,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:44:35,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712902882] [2021-08-26 08:44:35,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712902882] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:44:35,965 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:44:35,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-26 08:44:35,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852359853] [2021-08-26 08:44:35,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 08:44:35,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:44:35,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 08:44:35,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:44:35,967 INFO L87 Difference]: Start difference. First operand 60 states and 84 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) [2021-08-26 08:44:35,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:44:35,973 INFO L93 Difference]: Finished difference Result 95 states and 135 transitions. [2021-08-26 08:44:35,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 08:44:35,974 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 [2021-08-26 08:44:35,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:44:35,975 INFO L225 Difference]: With dead ends: 95 [2021-08-26 08:44:35,975 INFO L226 Difference]: Without dead ends: 57 [2021-08-26 08:44:35,975 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:44:35,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-08-26 08:44:35,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-08-26 08:44:35,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.3571428571428572) internal successors, (76), 56 states have internal predecessors, (76), 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) [2021-08-26 08:44:35,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 76 transitions. [2021-08-26 08:44:35,981 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 76 transitions. Word has length 23 [2021-08-26 08:44:35,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:44:35,982 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 76 transitions. [2021-08-26 08:44:35,982 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) [2021-08-26 08:44:35,982 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 76 transitions. [2021-08-26 08:44:35,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-08-26 08:44:35,983 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:44:35,983 INFO L512 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] [2021-08-26 08:44:35,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-26 08:44:35,984 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:44:35,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:44:35,984 INFO L82 PathProgramCache]: Analyzing trace with hash -829366222, now seen corresponding path program 1 times [2021-08-26 08:44:35,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:44:35,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91723762] [2021-08-26 08:44:35,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:44:35,987 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:44:36,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:44:36,075 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:44:36,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:44:36,076 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91723762] [2021-08-26 08:44:36,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91723762] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 08:44:36,076 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [282021399] [2021-08-26 08:44:36,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:44:36,077 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 08:44:36,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 08:44:36,078 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) [2021-08-26 08:44:36,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-26 08:44:36,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:44:36,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-26 08:44:36,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 08:44:36,390 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:44:36,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [282021399] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:44:36,392 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-26 08:44:36,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2021-08-26 08:44:36,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755186065] [2021-08-26 08:44:36,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-26 08:44:36,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:44:36,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-26 08:44:36,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:44:36,395 INFO L87 Difference]: Start difference. First operand 57 states and 76 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) [2021-08-26 08:44:36,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:44:36,455 INFO L93 Difference]: Finished difference Result 73 states and 99 transitions. [2021-08-26 08:44:36,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-26 08:44:36,456 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 [2021-08-26 08:44:36,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:44:36,456 INFO L225 Difference]: With dead ends: 73 [2021-08-26 08:44:36,456 INFO L226 Difference]: Without dead ends: 0 [2021-08-26 08:44:36,457 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:44:36,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-26 08:44:36,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-26 08:44:36,458 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) [2021-08-26 08:44:36,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-26 08:44:36,458 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2021-08-26 08:44:36,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:44:36,458 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-26 08:44:36,458 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) [2021-08-26 08:44:36,459 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-26 08:44:36,459 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-26 08:44:36,461 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 08:44:36,462 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 08:44:36,462 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 08:44:36,484 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-08-26 08:44:36,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 08:44:36,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-26 08:44:36,686 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:36,687 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:36,688 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:36,700 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:36,707 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:36,707 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:36,709 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:36,711 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:36,711 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:36,712 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:36,715 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:36,716 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:36,725 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:36,726 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:36,729 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:36,730 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:36,733 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:36,734 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:36,739 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:36,744 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:36,753 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:36,755 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:36,758 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:36,759 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:36,759 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:37,046 INFO L857 garLoopResultBuilder]: For program point L762(lines 762 766) no Hoare annotation was computed. [2021-08-26 08:44:37,047 INFO L857 garLoopResultBuilder]: For program point L729(lines 729 742) no Hoare annotation was computed. [2021-08-26 08:44:37,047 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 441) no Hoare annotation was computed. [2021-08-26 08:44:37,047 INFO L857 garLoopResultBuilder]: For program point L762-3(lines 762 766) no Hoare annotation was computed. [2021-08-26 08:44:37,047 INFO L857 garLoopResultBuilder]: For program point L762-6(lines 762 766) no Hoare annotation was computed. [2021-08-26 08:44:37,047 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-26 08:44:37,047 INFO L857 garLoopResultBuilder]: For program point L53(lines 53 66) no Hoare annotation was computed. [2021-08-26 08:44:37,047 INFO L853 garLoopResultBuilder]: At program point L53-1(lines 1 869) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0))) (or (and .cse0 .cse1 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0 0)) (<= 2 ~waterLevel~0) (not (= |ULTIMATE.start_getWaterLevel_#res| 0))) (and .cse0 .cse1 (= ~waterLevel~0 1) (= ~waterLevel~0 ~systemActive~0)))) [2021-08-26 08:44:37,047 INFO L857 garLoopResultBuilder]: For program point L53-2(lines 53 66) no Hoare annotation was computed. [2021-08-26 08:44:37,048 INFO L853 garLoopResultBuilder]: At program point L53-3(lines 1 869) the Hoare annotation is: false [2021-08-26 08:44:37,048 INFO L857 garLoopResultBuilder]: For program point L53-4(lines 53 66) no Hoare annotation was computed. [2021-08-26 08:44:37,048 INFO L853 garLoopResultBuilder]: At program point L53-5(lines 1 869) the Hoare annotation is: false [2021-08-26 08:44:37,048 INFO L853 garLoopResultBuilder]: At program point L747(lines 698 748) the Hoare annotation is: false [2021-08-26 08:44:37,048 INFO L853 garLoopResultBuilder]: At program point L831(lines 826 834) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= |ULTIMATE.start_getWaterLevel_#res| 0)))) (or (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1) (= ~waterLevel~0 ~systemActive~0)) (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2))) [2021-08-26 08:44:37,048 INFO L853 garLoopResultBuilder]: At program point L831-1(lines 826 834) the Hoare annotation is: false [2021-08-26 08:44:37,048 INFO L853 garLoopResultBuilder]: At program point L831-2(lines 826 834) the Hoare annotation is: false [2021-08-26 08:44:37,048 INFO L857 garLoopResultBuilder]: For program point L700(lines 699 746) no Hoare annotation was computed. [2021-08-26 08:44:37,048 INFO L853 garLoopResultBuilder]: At program point L866(lines 861 869) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (= ~waterLevel~0 ~systemActive~0)) [2021-08-26 08:44:37,049 INFO L857 garLoopResultBuilder]: For program point L701(lines 701 705) no Hoare annotation was computed. [2021-08-26 08:44:37,049 INFO L857 garLoopResultBuilder]: For program point L57(lines 57 63) no Hoare annotation was computed. [2021-08-26 08:44:37,049 INFO L857 garLoopResultBuilder]: For program point L536(lines 536 543) no Hoare annotation was computed. [2021-08-26 08:44:37,049 INFO L857 garLoopResultBuilder]: For program point L57-2(lines 57 63) no Hoare annotation was computed. [2021-08-26 08:44:37,049 INFO L860 garLoopResultBuilder]: At program point L536-1(lines 536 543) the Hoare annotation is: true [2021-08-26 08:44:37,049 INFO L857 garLoopResultBuilder]: For program point L57-4(lines 57 63) no Hoare annotation was computed. [2021-08-26 08:44:37,049 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-26 08:44:37,049 INFO L853 garLoopResultBuilder]: At program point L570(lines 570 576) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0))) (or (and .cse0 .cse1 (= ~waterLevel~0 1) (= ~waterLevel~0 ~systemActive~0)) (and .cse0 .cse1 (<= 2 ~waterLevel~0)))) [2021-08-26 08:44:37,049 INFO L853 garLoopResultBuilder]: At program point L570-1(lines 570 576) the Hoare annotation is: false [2021-08-26 08:44:37,049 INFO L853 garLoopResultBuilder]: At program point L570-2(lines 570 576) the Hoare annotation is: false [2021-08-26 08:44:37,049 INFO L857 garLoopResultBuilder]: For program point L719(lines 719 725) no Hoare annotation was computed. [2021-08-26 08:44:37,050 INFO L853 garLoopResultBuilder]: At program point L719-1(lines 719 725) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0))) (or (and .cse0 .cse1 (= ~waterLevel~0 1) (= ~waterLevel~0 ~systemActive~0)) (and .cse0 .cse1 (<= 2 ~waterLevel~0)))) [2021-08-26 08:44:37,050 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 441) no Hoare annotation was computed. [2021-08-26 08:44:37,050 INFO L857 garLoopResultBuilder]: For program point L786(lines 786 790) no Hoare annotation was computed. [2021-08-26 08:44:37,050 INFO L857 garLoopResultBuilder]: For program point L737(lines 737 741) no Hoare annotation was computed. [2021-08-26 08:44:37,050 INFO L853 garLoopResultBuilder]: At program point L737-2(lines 563 569) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0))) (or (and .cse0 .cse1 (= ~waterLevel~0 1) (= ~waterLevel~0 ~systemActive~0)) (and .cse0 .cse1 (<= 2 ~waterLevel~0)))) [2021-08-26 08:44:37,050 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-26 08:44:37,050 INFO L857 garLoopResultBuilder]: For program point L441(line 441) no Hoare annotation was computed. [2021-08-26 08:44:37,050 INFO L857 garLoopResultBuilder]: For program point L441-1(line 441) no Hoare annotation was computed. [2021-08-26 08:44:37,050 INFO L857 garLoopResultBuilder]: For program point L441-2(line 441) no Hoare annotation was computed. [2021-08-26 08:44:37,050 INFO L853 garLoopResultBuilder]: At program point L458-2(lines 458 472) the Hoare annotation is: false [2021-08-26 08:44:37,051 INFO L853 garLoopResultBuilder]: At program point L640(lines 635 643) the Hoare annotation is: false [2021-08-26 08:44:37,051 INFO L853 garLoopResultBuilder]: At program point L640-1(lines 635 643) the Hoare annotation is: false [2021-08-26 08:44:37,051 INFO L853 garLoopResultBuilder]: At program point L640-2(lines 635 643) the Hoare annotation is: false [2021-08-26 08:44:37,051 INFO L857 garLoopResultBuilder]: For program point L459(line 459) no Hoare annotation was computed. [2021-08-26 08:44:37,051 INFO L853 garLoopResultBuilder]: At program point L509(lines 505 511) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (= ~waterLevel~0 ~systemActive~0)) [2021-08-26 08:44:37,051 INFO L857 garLoopResultBuilder]: For program point L774(lines 774 778) no Hoare annotation was computed. [2021-08-26 08:44:37,051 INFO L857 garLoopResultBuilder]: For program point L709(lines 709 715) no Hoare annotation was computed. [2021-08-26 08:44:37,051 INFO L853 garLoopResultBuilder]: At program point L709-1(lines 709 715) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0))) (or (and .cse0 .cse1 (= ~waterLevel~0 1) (= ~waterLevel~0 ~systemActive~0)) (and .cse0 .cse1 (<= 2 ~waterLevel~0)))) [2021-08-26 08:44:37,051 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-26 08:44:37,051 INFO L853 garLoopResultBuilder]: At program point L858(lines 1 869) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (= ~waterLevel~0 ~systemActive~0)) [2021-08-26 08:44:37,052 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 441) no Hoare annotation was computed. [2021-08-26 08:44:37,052 INFO L857 garLoopResultBuilder]: For program point L462(lines 462 466) no Hoare annotation was computed. [2021-08-26 08:44:37,052 INFO L857 garLoopResultBuilder]: For program point L462-1(lines 563 569) no Hoare annotation was computed. [2021-08-26 08:44:37,052 INFO L860 garLoopResultBuilder]: At program point L545(lines 526 548) the Hoare annotation is: true [2021-08-26 08:44:37,052 INFO L853 garLoopResultBuilder]: At program point L563(lines 562 581) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0))) (or (and .cse0 .cse1 (= ~waterLevel~0 1) (= ~waterLevel~0 ~systemActive~0)) (and .cse0 .cse1 (<= 2 ~waterLevel~0)))) [2021-08-26 08:44:37,052 INFO L857 garLoopResultBuilder]: For program point L563-1(lines 563 569) no Hoare annotation was computed. [2021-08-26 08:44:37,052 INFO L853 garLoopResultBuilder]: At program point L563-2(lines 562 581) the Hoare annotation is: false [2021-08-26 08:44:37,052 INFO L853 garLoopResultBuilder]: At program point L563-3(lines 562 581) the Hoare annotation is: false [2021-08-26 08:44:37,056 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 08:44:37,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 08:44:37 BoogieIcfgContainer [2021-08-26 08:44:37,087 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 08:44:37,088 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 08:44:37,088 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 08:44:37,088 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 08:44:37,089 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:44:35" (3/4) ... [2021-08-26 08:44:37,091 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-26 08:44:37,107 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-08-26 08:44:37,107 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-08-26 08:44:37,108 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-08-26 08:44:37,108 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-08-26 08:44:37,108 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-08-26 08:44:37,109 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 08:44:37,109 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 08:44:37,133 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0 && pumpRunning == 0) && !(tmp == 0)) && 2 <= waterLevel) && !(\result == 0)) || (((splverifierCounter == 0 && pumpRunning == 0) && waterLevel == 1) && waterLevel == systemActive) [2021-08-26 08:44:37,135 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0 && pumpRunning == 0) && !(\result == 0)) && waterLevel == 1) && waterLevel == systemActive) || (((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && !(\result == 0)) [2021-08-26 08:44:37,173 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-26 08:44:37,173 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 08:44:37,175 INFO L168 Benchmark]: Toolchain (without parser) took 3340.79 ms. Allocated memory was 54.5 MB in the beginning and 98.6 MB in the end (delta: 44.0 MB). Free memory was 29.6 MB in the beginning and 77.4 MB in the end (delta: -47.8 MB). Peak memory consumption was 34.5 MB. Max. memory is 16.1 GB. [2021-08-26 08:44:37,175 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 54.5 MB. Free memory was 35.9 MB in the beginning and 35.9 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 08:44:37,177 INFO L168 Benchmark]: CACSL2BoogieTranslator took 407.79 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 29.5 MB in the beginning and 42.7 MB in the end (delta: -13.2 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. [2021-08-26 08:44:37,178 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.32 ms. Allocated memory is still 67.1 MB. Free memory was 42.5 MB in the beginning and 40.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-26 08:44:37,178 INFO L168 Benchmark]: Boogie Preprocessor took 29.15 ms. Allocated memory is still 67.1 MB. Free memory was 40.0 MB in the beginning and 38.1 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 08:44:37,178 INFO L168 Benchmark]: RCFGBuilder took 732.93 ms. Allocated memory is still 67.1 MB. Free memory was 38.1 MB in the beginning and 43.8 MB in the end (delta: -5.7 MB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB. [2021-08-26 08:44:37,179 INFO L168 Benchmark]: TraceAbstraction took 2027.00 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 43.1 MB in the beginning and 28.2 MB in the end (delta: 14.9 MB). Peak memory consumption was 36.6 MB. Max. memory is 16.1 GB. [2021-08-26 08:44:37,179 INFO L168 Benchmark]: Witness Printer took 85.33 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 28.2 MB in the beginning and 77.4 MB in the end (delta: -49.2 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. [2021-08-26 08:44:37,181 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 54.5 MB. Free memory was 35.9 MB in the beginning and 35.9 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 407.79 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 29.5 MB in the beginning and 42.7 MB in the end (delta: -13.2 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.32 ms. Allocated memory is still 67.1 MB. Free memory was 42.5 MB in the beginning and 40.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.15 ms. Allocated memory is still 67.1 MB. Free memory was 40.0 MB in the beginning and 38.1 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 732.93 ms. Allocated memory is still 67.1 MB. Free memory was 38.1 MB in the beginning and 43.8 MB in the end (delta: -5.7 MB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2027.00 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 43.1 MB in the beginning and 28.2 MB in the end (delta: 14.9 MB). Peak memory consumption was 36.6 MB. Max. memory is 16.1 GB. * Witness Printer took 85.33 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 28.2 MB in the beginning and 77.4 MB in the end (delta: -49.2 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 441]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 441]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 441]: 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, 57 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1952.1ms, OverallIterations: 5, TraceHistogramMax: 2, EmptinessCheckTime: 10.8ms, AutomataDifference: 328.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 364.5ms, InitialAbstractionConstructionTime: 8.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 237 SDtfs, 289 SDslu, 230 SDs, 0 SdLazy, 72 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 117.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 97.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=3, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 43.8ms AutomataMinimizationTime, 5 MinimizatonAttempts, 61 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 25 LocationsWithAnnotation, 25 PreInvPairs, 41 NumberOfFragments, 229 HoareAnnotationTreeSize, 25 FomulaSimplifications, 270 FormulaSimplificationTreeSizeReduction, 74.7ms HoareSimplificationTime, 25 FomulaSimplificationsInter, 58 FormulaSimplificationTreeSizeReductionInter, 282.1ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 51.1ms SsaConstructionTime, 217.6ms SatisfiabilityAnalysisTime, 501.4ms InterpolantComputationTime, 152 NumberOfCodeBlocks, 152 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 146 ConstructedInterpolants, 0 QuantifiedInterpolants, 313 SizeOfPredicates, 0 NumberOfNonLiveVariables, 374 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 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: 826]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 826]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 570]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0 && pumpRunning == 0) && waterLevel == 1) && waterLevel == systemActive) || ((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && waterLevel == 1) && waterLevel == systemActive - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 458]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 861]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && waterLevel == 1) && waterLevel == systemActive - InvariantResult [Line: 698]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 536]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 505]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && waterLevel == 1) && waterLevel == systemActive - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 719]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0 && pumpRunning == 0) && waterLevel == 1) && waterLevel == systemActive) || ((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) - InvariantResult [Line: 570]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 526]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 826]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0 && pumpRunning == 0) && !(\result == 0)) && waterLevel == 1) && waterLevel == systemActive) || (((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && !(\result == 0)) - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 709]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0 && pumpRunning == 0) && waterLevel == 1) && waterLevel == systemActive) || ((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) - InvariantResult [Line: 563]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0 && pumpRunning == 0) && waterLevel == 1) && waterLevel == systemActive) || ((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0 && pumpRunning == 0) && !(tmp == 0)) && 2 <= waterLevel) && !(\result == 0)) || (((splverifierCounter == 0 && pumpRunning == 0) && waterLevel == 1) && waterLevel == systemActive) - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0 && pumpRunning == 0) && waterLevel == 1) && waterLevel == systemActive) || ((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) - InvariantResult [Line: 635]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 570]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 635]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 635]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-08-26 08:44:37,222 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...