./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product17.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 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_product17.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 10f05e3ec3dc20c87bc900eaaa9b2990393e6df5 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-25 23:07:14,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 23:07:14,081 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 23:07:14,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 23:07:14,151 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 23:07:14,157 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 23:07:14,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 23:07:14,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 23:07:14,167 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 23:07:14,169 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 23:07:14,171 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 23:07:14,177 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 23:07:14,178 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 23:07:14,182 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 23:07:14,184 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 23:07:14,187 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 23:07:14,188 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 23:07:14,196 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 23:07:14,201 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 23:07:14,207 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 23:07:14,212 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 23:07:14,213 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 23:07:14,216 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 23:07:14,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 23:07:14,222 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 23:07:14,224 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 23:07:14,225 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 23:07:14,227 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 23:07:14,228 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 23:07:14,229 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 23:07:14,230 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 23:07:14,231 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 23:07:14,233 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 23:07:14,234 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 23:07:14,235 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 23:07:14,236 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 23:07:14,237 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 23:07:14,237 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 23:07:14,237 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 23:07:14,240 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 23:07:14,241 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 23:07:14,245 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 23:07:14,305 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 23:07:14,305 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 23:07:14,309 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 23:07:14,310 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 23:07:14,310 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 23:07:14,310 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 23:07:14,311 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 23:07:14,311 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 23:07:14,311 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 23:07:14,311 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 23:07:14,313 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 23:07:14,313 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 23:07:14,314 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 23:07:14,314 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 23:07:14,314 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 23:07:14,314 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 23:07:14,315 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 23:07:14,315 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 23:07:14,315 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 23:07:14,316 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 23:07:14,316 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 23:07:14,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 23:07:14,317 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 23:07:14,317 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 23:07:14,317 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 23:07:14,317 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 23:07:14,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 23:07:14,318 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 23:07:14,318 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 23:07:14,319 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10f05e3ec3dc20c87bc900eaaa9b2990393e6df5 [2020-10-25 23:07:14,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 23:07:14,798 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 23:07:14,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 23:07:14,802 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 23:07:14,803 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 23:07:14,805 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product17.cil.c [2020-10-25 23:07:14,879 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/254661e49/4a43d65cbafe44c38b2f7e9081af527c/FLAG1d19708b4 [2020-10-25 23:07:15,597 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 23:07:15,599 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product17.cil.c [2020-10-25 23:07:15,624 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/254661e49/4a43d65cbafe44c38b2f7e9081af527c/FLAG1d19708b4 [2020-10-25 23:07:15,828 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/254661e49/4a43d65cbafe44c38b2f7e9081af527c [2020-10-25 23:07:15,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 23:07:15,840 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 23:07:15,843 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 23:07:15,843 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 23:07:15,848 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 23:07:15,849 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 11:07:15" (1/1) ... [2020-10-25 23:07:15,855 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a85d1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:15, skipping insertion in model container [2020-10-25 23:07:15,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 11:07:15" (1/1) ... [2020-10-25 23:07:15,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 23:07:15,946 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 23:07:16,277 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 23:07:16,289 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 23:07:16,415 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 23:07:16,456 INFO L208 MainTranslator]: Completed translation [2020-10-25 23:07:16,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:16 WrapperNode [2020-10-25 23:07:16,457 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 23:07:16,459 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 23:07:16,459 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 23:07:16,459 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 23:07:16,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:16" (1/1) ... [2020-10-25 23:07:16,489 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:16" (1/1) ... [2020-10-25 23:07:16,531 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 23:07:16,532 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 23:07:16,533 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 23:07:16,533 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 23:07:16,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:16" (1/1) ... [2020-10-25 23:07:16,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:16" (1/1) ... [2020-10-25 23:07:16,557 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:16" (1/1) ... [2020-10-25 23:07:16,557 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:16" (1/1) ... [2020-10-25 23:07:16,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:16" (1/1) ... [2020-10-25 23:07:16,593 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:16" (1/1) ... [2020-10-25 23:07:16,602 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:16" (1/1) ... [2020-10-25 23:07:16,610 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 23:07:16,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 23:07:16,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 23:07:16,612 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 23:07:16,613 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 23:07:16,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 23:07:16,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 23:07:16,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 23:07:16,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 23:07:17,693 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 23:07:17,693 INFO L298 CfgBuilder]: Removed 102 assume(true) statements. [2020-10-25 23:07:17,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:07:17 BoogieIcfgContainer [2020-10-25 23:07:17,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 23:07:17,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 23:07:17,697 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 23:07:17,701 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 23:07:17,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 11:07:15" (1/3) ... [2020-10-25 23:07:17,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c27c74a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 11:07:17, skipping insertion in model container [2020-10-25 23:07:17,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:16" (2/3) ... [2020-10-25 23:07:17,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c27c74a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 11:07:17, skipping insertion in model container [2020-10-25 23:07:17,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:07:17" (3/3) ... [2020-10-25 23:07:17,704 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product17.cil.c [2020-10-25 23:07:17,717 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 23:07:17,722 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-25 23:07:17,736 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-25 23:07:17,767 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 23:07:17,767 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 23:07:17,768 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 23:07:17,768 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 23:07:17,768 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 23:07:17,768 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 23:07:17,768 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 23:07:17,768 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 23:07:17,786 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states. [2020-10-25 23:07:17,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-25 23:07:17,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:17,792 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:07:17,793 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:17,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:17,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1009828906, now seen corresponding path program 1 times [2020-10-25 23:07:17,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:17,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128905914] [2020-10-25 23:07:17,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:17,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:18,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:18,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128905914] [2020-10-25 23:07:18,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:18,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 23:07:18,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242855314] [2020-10-25 23:07:18,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 23:07:18,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:18,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 23:07:18,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 23:07:18,166 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 2 states. [2020-10-25 23:07:18,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:18,196 INFO L93 Difference]: Finished difference Result 147 states and 218 transitions. [2020-10-25 23:07:18,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 23:07:18,198 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-10-25 23:07:18,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:18,210 INFO L225 Difference]: With dead ends: 147 [2020-10-25 23:07:18,210 INFO L226 Difference]: Without dead ends: 71 [2020-10-25 23:07:18,214 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 23:07:18,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-25 23:07:18,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-10-25 23:07:18,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-25 23:07:18,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 99 transitions. [2020-10-25 23:07:18,259 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 99 transitions. Word has length 16 [2020-10-25 23:07:18,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:18,260 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 99 transitions. [2020-10-25 23:07:18,260 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 23:07:18,260 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 99 transitions. [2020-10-25 23:07:18,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-25 23:07:18,261 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:18,262 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:07:18,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 23:07:18,262 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:18,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:18,263 INFO L82 PathProgramCache]: Analyzing trace with hash -36927991, now seen corresponding path program 1 times [2020-10-25 23:07:18,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:18,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130589352] [2020-10-25 23:07:18,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:18,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:18,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:18,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130589352] [2020-10-25 23:07:18,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:18,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 23:07:18,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886199534] [2020-10-25 23:07:18,410 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:07:18,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:18,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:07:18,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:07:18,419 INFO L87 Difference]: Start difference. First operand 71 states and 99 transitions. Second operand 3 states. [2020-10-25 23:07:18,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:18,431 INFO L93 Difference]: Finished difference Result 71 states and 99 transitions. [2020-10-25 23:07:18,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:07:18,433 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-25 23:07:18,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:18,434 INFO L225 Difference]: With dead ends: 71 [2020-10-25 23:07:18,434 INFO L226 Difference]: Without dead ends: 33 [2020-10-25 23:07:18,436 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:07:18,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-25 23:07:18,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-25 23:07:18,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-25 23:07:18,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 46 transitions. [2020-10-25 23:07:18,442 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 46 transitions. Word has length 17 [2020-10-25 23:07:18,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:18,443 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 46 transitions. [2020-10-25 23:07:18,443 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:07:18,443 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 46 transitions. [2020-10-25 23:07:18,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-25 23:07:18,445 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:18,445 INFO L422 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] [2020-10-25 23:07:18,445 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 23:07:18,446 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:18,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:18,447 INFO L82 PathProgramCache]: Analyzing trace with hash 379655789, now seen corresponding path program 1 times [2020-10-25 23:07:18,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:18,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379429884] [2020-10-25 23:07:18,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:18,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:18,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379429884] [2020-10-25 23:07:18,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:18,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-25 23:07:18,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697000962] [2020-10-25 23:07:18,570 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-25 23:07:18,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:18,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-25 23:07:18,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-25 23:07:18,572 INFO L87 Difference]: Start difference. First operand 33 states and 46 transitions. Second operand 6 states. [2020-10-25 23:07:18,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:18,813 INFO L93 Difference]: Finished difference Result 60 states and 86 transitions. [2020-10-25 23:07:18,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-25 23:07:18,814 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-10-25 23:07:18,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:18,815 INFO L225 Difference]: With dead ends: 60 [2020-10-25 23:07:18,815 INFO L226 Difference]: Without dead ends: 33 [2020-10-25 23:07:18,816 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-25 23:07:18,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-25 23:07:18,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-25 23:07:18,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-25 23:07:18,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 45 transitions. [2020-10-25 23:07:18,822 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 45 transitions. Word has length 22 [2020-10-25 23:07:18,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:18,822 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 45 transitions. [2020-10-25 23:07:18,823 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-25 23:07:18,823 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions. [2020-10-25 23:07:18,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-25 23:07:18,824 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:18,824 INFO L422 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] [2020-10-25 23:07:18,824 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-25 23:07:18,824 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:18,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:18,825 INFO L82 PathProgramCache]: Analyzing trace with hash -2095114328, now seen corresponding path program 1 times [2020-10-25 23:07:18,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:18,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366274223] [2020-10-25 23:07:18,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:18,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:18,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:18,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366274223] [2020-10-25 23:07:18,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:18,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-25 23:07:18,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353522805] [2020-10-25 23:07:18,981 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-25 23:07:18,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:18,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-25 23:07:18,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-25 23:07:18,983 INFO L87 Difference]: Start difference. First operand 33 states and 45 transitions. Second operand 8 states. [2020-10-25 23:07:19,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:19,509 INFO L93 Difference]: Finished difference Result 196 states and 293 transitions. [2020-10-25 23:07:19,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-25 23:07:19,510 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-10-25 23:07:19,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:19,512 INFO L225 Difference]: With dead ends: 196 [2020-10-25 23:07:19,512 INFO L226 Difference]: Without dead ends: 169 [2020-10-25 23:07:19,513 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-25 23:07:19,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-10-25 23:07:19,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 78. [2020-10-25 23:07:19,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-25 23:07:19,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 109 transitions. [2020-10-25 23:07:19,530 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 109 transitions. Word has length 23 [2020-10-25 23:07:19,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:19,531 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 109 transitions. [2020-10-25 23:07:19,531 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-25 23:07:19,531 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 109 transitions. [2020-10-25 23:07:19,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-25 23:07:19,532 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:19,533 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:07:19,533 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-25 23:07:19,533 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:19,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:19,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1283837447, now seen corresponding path program 1 times [2020-10-25 23:07:19,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:19,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640948195] [2020-10-25 23:07:19,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:19,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:19,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:19,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640948195] [2020-10-25 23:07:19,696 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:19,696 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 23:07:19,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500669519] [2020-10-25 23:07:19,697 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:07:19,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:19,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:07:19,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:07:19,699 INFO L87 Difference]: Start difference. First operand 78 states and 109 transitions. Second operand 3 states. [2020-10-25 23:07:19,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:19,745 INFO L93 Difference]: Finished difference Result 132 states and 186 transitions. [2020-10-25 23:07:19,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:07:19,746 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-10-25 23:07:19,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:19,747 INFO L225 Difference]: With dead ends: 132 [2020-10-25 23:07:19,748 INFO L226 Difference]: Without dead ends: 60 [2020-10-25 23:07:19,748 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:07:19,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-25 23:07:19,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-10-25 23:07:19,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-25 23:07:19,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 77 transitions. [2020-10-25 23:07:19,759 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 77 transitions. Word has length 24 [2020-10-25 23:07:19,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:19,760 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 77 transitions. [2020-10-25 23:07:19,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:07:19,760 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 77 transitions. [2020-10-25 23:07:19,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-25 23:07:19,761 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:19,762 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:07:19,762 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-25 23:07:19,762 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:19,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:19,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1611517957, now seen corresponding path program 1 times [2020-10-25 23:07:19,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:19,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022703169] [2020-10-25 23:07:19,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:19,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:19,865 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:19,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022703169] [2020-10-25 23:07:19,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602335240] [2020-10-25 23:07:19,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 23:07:20,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:20,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-25 23:07:20,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 23:07:20,226 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:20,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 23:07:20,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2020-10-25 23:07:20,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793787102] [2020-10-25 23:07:20,230 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 23:07:20,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:20,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 23:07:20,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:07:20,234 INFO L87 Difference]: Start difference. First operand 60 states and 77 transitions. Second operand 4 states. [2020-10-25 23:07:20,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:20,382 INFO L93 Difference]: Finished difference Result 77 states and 100 transitions. [2020-10-25 23:07:20,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 23:07:20,383 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 39 [2020-10-25 23:07:20,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:20,384 INFO L225 Difference]: With dead ends: 77 [2020-10-25 23:07:20,384 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 23:07:20,385 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:07:20,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 23:07:20,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 23:07:20,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 23:07:20,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 23:07:20,386 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2020-10-25 23:07:20,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:20,386 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 23:07:20,386 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 23:07:20,386 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 23:07:20,387 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 23:07:20,595 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-10-25 23:07:20,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 23:07:20,867 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 26 [2020-10-25 23:07:21,048 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 20 [2020-10-25 23:07:21,205 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 23 [2020-10-25 23:07:21,416 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 20 [2020-10-25 23:07:21,576 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 20 [2020-10-25 23:07:21,702 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 20 [2020-10-25 23:07:21,708 INFO L274 CegarLoopResult]: For program point L448(lines 448 452) no Hoare annotation was computed. [2020-10-25 23:07:21,708 INFO L270 CegarLoopResult]: At program point L382(lines 377 385) the Hoare annotation is: false [2020-10-25 23:07:21,708 INFO L274 CegarLoopResult]: For program point L448-3(lines 448 452) no Hoare annotation was computed. [2020-10-25 23:07:21,708 INFO L270 CegarLoopResult]: At program point L382-1(lines 377 385) the Hoare annotation is: false [2020-10-25 23:07:21,708 INFO L270 CegarLoopResult]: At program point L382-2(lines 377 385) the Hoare annotation is: false [2020-10-25 23:07:21,709 INFO L274 CegarLoopResult]: For program point L448-6(lines 448 452) no Hoare annotation was computed. [2020-10-25 23:07:21,709 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-25 23:07:21,709 INFO L274 CegarLoopResult]: For program point L333(lines 333 341) no Hoare annotation was computed. [2020-10-25 23:07:21,709 INFO L274 CegarLoopResult]: For program point L333-1(lines 333 341) no Hoare annotation was computed. [2020-10-25 23:07:21,709 INFO L274 CegarLoopResult]: For program point L333-2(lines 333 341) no Hoare annotation was computed. [2020-10-25 23:07:21,709 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-25 23:07:21,709 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-25 23:07:21,709 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-10-25 23:07:21,710 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 23:07:21,710 INFO L274 CegarLoopResult]: For program point L53(lines 53 66) no Hoare annotation was computed. [2020-10-25 23:07:21,711 INFO L270 CegarLoopResult]: At program point L53-1(lines 1 895) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res| ~systemActive~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse1 (= ULTIMATE.start_main_~tmp~1 ~waterLevel~0) .cse2 .cse3) (and (not (= |ULTIMATE.start_getWaterLevel_#res| 0)) (= ULTIMATE.start_main_~tmp~1 ~systemActive~0) .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0 0))))) [2020-10-25 23:07:21,711 INFO L274 CegarLoopResult]: For program point L53-2(lines 53 66) no Hoare annotation was computed. [2020-10-25 23:07:21,711 INFO L270 CegarLoopResult]: At program point L53-3(lines 1 895) the Hoare annotation is: false [2020-10-25 23:07:21,711 INFO L274 CegarLoopResult]: For program point L53-4(lines 53 66) no Hoare annotation was computed. [2020-10-25 23:07:21,711 INFO L270 CegarLoopResult]: At program point L53-5(lines 1 895) the Hoare annotation is: false [2020-10-25 23:07:21,712 INFO L274 CegarLoopResult]: For program point L87(lines 87 91) no Hoare annotation was computed. [2020-10-25 23:07:21,712 INFO L274 CegarLoopResult]: For program point L87-1(lines 297 303) no Hoare annotation was computed. [2020-10-25 23:07:21,712 INFO L277 CegarLoopResult]: At program point L170(lines 151 173) the Hoare annotation is: true [2020-10-25 23:07:21,712 INFO L270 CegarLoopResult]: At program point L517(lines 512 520) the Hoare annotation is: (let ((.cse0 (not (= |ULTIMATE.start_getWaterLevel_#res| 0))) (.cse1 (= |ULTIMATE.start_valid_product_#res| ~systemActive~0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse2 (= ULTIMATE.start_main_~tmp~1 ~waterLevel~0) .cse3 .cse4) (and .cse0 (= ULTIMATE.start_main_~tmp~1 ~systemActive~0) .cse1 .cse2 (<= 2 ~waterLevel~0) .cse3 .cse4))) [2020-10-25 23:07:21,713 INFO L270 CegarLoopResult]: At program point L517-1(lines 512 520) the Hoare annotation is: false [2020-10-25 23:07:21,713 INFO L270 CegarLoopResult]: At program point L517-2(lines 512 520) the Hoare annotation is: false [2020-10-25 23:07:21,713 INFO L270 CegarLoopResult]: At program point L304(lines 304 310) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res| ~systemActive~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse1 (= ULTIMATE.start_main_~tmp~1 ~waterLevel~0) .cse2 .cse3) (and (= ULTIMATE.start_main_~tmp~1 ~systemActive~0) .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3))) [2020-10-25 23:07:21,713 INFO L270 CegarLoopResult]: At program point L304-1(lines 304 310) the Hoare annotation is: false [2020-10-25 23:07:21,714 INFO L270 CegarLoopResult]: At program point L304-2(lines 304 310) the Hoare annotation is: false [2020-10-25 23:07:21,714 INFO L274 CegarLoopResult]: For program point L57(lines 57 63) no Hoare annotation was computed. [2020-10-25 23:07:21,714 INFO L274 CegarLoopResult]: For program point L57-2(lines 57 63) no Hoare annotation was computed. [2020-10-25 23:07:21,714 INFO L270 CegarLoopResult]: At program point L437(lines 422 440) the Hoare annotation is: false [2020-10-25 23:07:21,714 INFO L274 CegarLoopResult]: For program point L57-4(lines 57 63) no Hoare annotation was computed. [2020-10-25 23:07:21,715 INFO L270 CegarLoopResult]: At program point L437-1(lines 422 440) the Hoare annotation is: false [2020-10-25 23:07:21,715 INFO L270 CegarLoopResult]: At program point L437-2(lines 422 440) the Hoare annotation is: false [2020-10-25 23:07:21,715 INFO L274 CegarLoopResult]: For program point L239(lines 239 245) no Hoare annotation was computed. [2020-10-25 23:07:21,715 INFO L270 CegarLoopResult]: At program point L206(lines 1 895) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-10-25 23:07:21,716 INFO L270 CegarLoopResult]: At program point L239-1(lines 239 245) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res| ~systemActive~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse1 (= ULTIMATE.start_main_~tmp~1 ~waterLevel~0) .cse2 .cse3) (and (= ULTIMATE.start_main_~tmp~1 ~systemActive~0) .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3))) [2020-10-25 23:07:21,716 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 23:07:21,716 INFO L274 CegarLoopResult]: For program point L472(lines 472 476) no Hoare annotation was computed. [2020-10-25 23:07:21,716 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-25 23:07:21,716 INFO L270 CegarLoopResult]: At program point L275(lines 228 276) the Hoare annotation is: false [2020-10-25 23:07:21,717 INFO L274 CegarLoopResult]: For program point L259(lines 259 270) no Hoare annotation was computed. [2020-10-25 23:07:21,717 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 23:07:21,717 INFO L274 CegarLoopResult]: For program point L161(lines 161 168) no Hoare annotation was computed. [2020-10-25 23:07:21,717 INFO L277 CegarLoopResult]: At program point L161-1(lines 161 168) the Hoare annotation is: true [2020-10-25 23:07:21,717 INFO L274 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2020-10-25 23:07:21,718 INFO L274 CegarLoopResult]: For program point L179-1(line 179) no Hoare annotation was computed. [2020-10-25 23:07:21,718 INFO L274 CegarLoopResult]: For program point L179-2(line 179) no Hoare annotation was computed. [2020-10-25 23:07:21,718 INFO L270 CegarLoopResult]: At program point L526(lines 521 529) the Hoare annotation is: false [2020-10-25 23:07:21,718 INFO L270 CegarLoopResult]: At program point L526-1(lines 521 529) the Hoare annotation is: false [2020-10-25 23:07:21,718 INFO L274 CegarLoopResult]: For program point L460(lines 460 464) no Hoare annotation was computed. [2020-10-25 23:07:21,719 INFO L270 CegarLoopResult]: At program point L526-2(lines 521 529) the Hoare annotation is: false [2020-10-25 23:07:21,719 INFO L274 CegarLoopResult]: For program point L329(lines 329 346) no Hoare annotation was computed. [2020-10-25 23:07:21,719 INFO L274 CegarLoopResult]: For program point L329-1(lines 329 346) no Hoare annotation was computed. [2020-10-25 23:07:21,719 INFO L274 CegarLoopResult]: For program point L329-2(lines 329 346) no Hoare annotation was computed. [2020-10-25 23:07:21,719 INFO L274 CegarLoopResult]: For program point L230(lines 229 274) no Hoare annotation was computed. [2020-10-25 23:07:21,720 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 23:07:21,720 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-25 23:07:21,720 INFO L270 CegarLoopResult]: At program point L214(lines 209 217) the Hoare annotation is: (and (= |ULTIMATE.start_valid_product_#res| ~systemActive~0) (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-10-25 23:07:21,720 INFO L270 CegarLoopResult]: At program point L297(lines 296 315) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res| ~systemActive~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse1 (= ULTIMATE.start_main_~tmp~1 ~waterLevel~0) .cse2 .cse3) (and (= ULTIMATE.start_main_~tmp~1 ~systemActive~0) .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3))) [2020-10-25 23:07:21,721 INFO L274 CegarLoopResult]: For program point L297-1(lines 297 303) no Hoare annotation was computed. [2020-10-25 23:07:21,721 INFO L274 CegarLoopResult]: For program point L231(lines 231 235) no Hoare annotation was computed. [2020-10-25 23:07:21,721 INFO L270 CegarLoopResult]: At program point L297-2(lines 296 315) the Hoare annotation is: false [2020-10-25 23:07:21,721 INFO L270 CegarLoopResult]: At program point L297-3(lines 296 315) the Hoare annotation is: false [2020-10-25 23:07:21,722 INFO L270 CegarLoopResult]: At program point L83-2(lines 83 97) the Hoare annotation is: false [2020-10-25 23:07:21,722 INFO L274 CegarLoopResult]: For program point L265(lines 265 269) no Hoare annotation was computed. [2020-10-25 23:07:21,722 INFO L274 CegarLoopResult]: For program point L265-2(lines 297 303) no Hoare annotation was computed. [2020-10-25 23:07:21,722 INFO L274 CegarLoopResult]: For program point L249(lines 249 255) no Hoare annotation was computed. [2020-10-25 23:07:21,722 INFO L270 CegarLoopResult]: At program point L249-1(lines 249 255) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res| ~systemActive~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse1 (= ULTIMATE.start_main_~tmp~1 ~waterLevel~0) .cse2 .cse3) (and (= ULTIMATE.start_main_~tmp~1 ~systemActive~0) .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3))) [2020-10-25 23:07:21,723 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-25 23:07:21,723 INFO L274 CegarLoopResult]: For program point L431(lines 431 435) no Hoare annotation was computed. [2020-10-25 23:07:21,723 INFO L274 CegarLoopResult]: For program point L431-2(lines 431 435) no Hoare annotation was computed. [2020-10-25 23:07:21,723 INFO L274 CegarLoopResult]: For program point L431-3(lines 431 435) no Hoare annotation was computed. [2020-10-25 23:07:21,723 INFO L274 CegarLoopResult]: For program point L431-5(lines 431 435) no Hoare annotation was computed. [2020-10-25 23:07:21,724 INFO L274 CegarLoopResult]: For program point L431-6(lines 431 435) no Hoare annotation was computed. [2020-10-25 23:07:21,724 INFO L274 CegarLoopResult]: For program point L431-8(lines 431 435) no Hoare annotation was computed. [2020-10-25 23:07:21,724 INFO L270 CegarLoopResult]: At program point L134(lines 130 136) the Hoare annotation is: (and (= |ULTIMATE.start_valid_product_#res| ~systemActive~0) (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (= 1 ~systemActive~0) (= ULTIMATE.start_main_~tmp~1 ~waterLevel~0) (= ~pumpRunning~0 0)) [2020-10-25 23:07:21,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 11:07:21 BoogieIcfgContainer [2020-10-25 23:07:21,749 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 23:07:21,749 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 23:07:21,749 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 23:07:21,750 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 23:07:21,750 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:07:17" (3/4) ... [2020-10-25 23:07:21,754 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 23:07:21,772 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-10-25 23:07:21,773 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-10-25 23:07:21,774 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-10-25 23:07:21,775 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-10-25 23:07:21,776 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-25 23:07:21,776 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 23:07:21,777 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 23:07:21,807 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == systemActive && \result == waterLevel) && 1 == systemActive) && pumpRunning == 0 [2020-10-25 23:07:21,808 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\result == systemActive && \result == waterLevel) && 1 == systemActive) && tmp == waterLevel) && pumpRunning == 0 [2020-10-25 23:07:21,808 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == systemActive && \result == waterLevel) && 1 == systemActive) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((((((!(\result == 0) && tmp == systemActive) && \result == systemActive) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp == 0)) [2020-10-25 23:07:21,809 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == systemActive && \result == waterLevel) && 1 == systemActive) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((((tmp == systemActive && \result == systemActive) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) [2020-10-25 23:07:21,809 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == systemActive && \result == waterLevel) && 1 == systemActive) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((((tmp == systemActive && \result == systemActive) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) [2020-10-25 23:07:21,810 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == systemActive && \result == waterLevel) && 1 == systemActive) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((((tmp == systemActive && \result == systemActive) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) [2020-10-25 23:07:21,810 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == systemActive && \result == waterLevel) && 1 == systemActive) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((((tmp == systemActive && \result == systemActive) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) [2020-10-25 23:07:21,812 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\result == 0) && \result == systemActive) && \result == waterLevel) && 1 == systemActive) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || ((((((!(\result == 0) && tmp == systemActive) && \result == systemActive) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) [2020-10-25 23:07:21,876 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 23:07:21,876 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 23:07:21,877 INFO L168 Benchmark]: Toolchain (without parser) took 6042.48 ms. Allocated memory was 41.9 MB in the beginning and 83.9 MB in the end (delta: 41.9 MB). Free memory was 18.2 MB in the beginning and 42.7 MB in the end (delta: -24.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 16.1 GB. [2020-10-25 23:07:21,878 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 41.9 MB. Free memory is still 26.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 23:07:21,878 INFO L168 Benchmark]: CACSL2BoogieTranslator took 614.96 ms. Allocated memory was 41.9 MB in the beginning and 52.4 MB in the end (delta: 10.5 MB). Free memory was 17.4 MB in the beginning and 29.6 MB in the end (delta: -12.1 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. [2020-10-25 23:07:21,879 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.11 ms. Allocated memory is still 52.4 MB. Free memory was 29.6 MB in the beginning and 26.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 23:07:21,879 INFO L168 Benchmark]: Boogie Preprocessor took 78.25 ms. Allocated memory is still 52.4 MB. Free memory was 26.6 MB in the beginning and 24.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 23:07:21,880 INFO L168 Benchmark]: RCFGBuilder took 1083.92 ms. Allocated memory is still 52.4 MB. Free memory was 24.5 MB in the beginning and 20.7 MB in the end (delta: 3.7 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. [2020-10-25 23:07:21,881 INFO L168 Benchmark]: TraceAbstraction took 4051.58 ms. Allocated memory was 52.4 MB in the beginning and 83.9 MB in the end (delta: 31.5 MB). Free memory was 20.4 MB in the beginning and 49.3 MB in the end (delta: -28.9 MB). Peak memory consumption was 35.6 MB. Max. memory is 16.1 GB. [2020-10-25 23:07:21,881 INFO L168 Benchmark]: Witness Printer took 127.08 ms. Allocated memory is still 83.9 MB. Free memory was 49.3 MB in the beginning and 42.7 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-10-25 23:07:21,884 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 41.9 MB. Free memory is still 26.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 614.96 ms. Allocated memory was 41.9 MB in the beginning and 52.4 MB in the end (delta: 10.5 MB). Free memory was 17.4 MB in the beginning and 29.6 MB in the end (delta: -12.1 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.11 ms. Allocated memory is still 52.4 MB. Free memory was 29.6 MB in the beginning and 26.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 78.25 ms. Allocated memory is still 52.4 MB. Free memory was 26.6 MB in the beginning and 24.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1083.92 ms. Allocated memory is still 52.4 MB. Free memory was 24.5 MB in the beginning and 20.7 MB in the end (delta: 3.7 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4051.58 ms. Allocated memory was 52.4 MB in the beginning and 83.9 MB in the end (delta: 31.5 MB). Free memory was 20.4 MB in the beginning and 49.3 MB in the end (delta: -28.9 MB). Peak memory consumption was 35.6 MB. Max. memory is 16.1 GB. * Witness Printer took 127.08 ms. Allocated memory is still 83.9 MB. Free memory was 49.3 MB in the beginning and 42.7 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 512]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 521]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 512]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 521]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 521]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((\result == systemActive && \result == waterLevel) && 1 == systemActive) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((((((!(\result == 0) && tmp == systemActive) && \result == systemActive) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp == 0)) - InvariantResult [Line: 422]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 377]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 422]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 377]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 377]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (waterLevel == 1 && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 239]: Loop Invariant Derived loop invariant: (((((\result == systemActive && \result == waterLevel) && 1 == systemActive) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((((tmp == systemActive && \result == systemActive) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 512]: Loop Invariant Derived loop invariant: ((((((!(\result == 0) && \result == systemActive) && \result == waterLevel) && 1 == systemActive) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || ((((((!(\result == 0) && tmp == systemActive) && \result == systemActive) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 304]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: (((\result == systemActive && \result == waterLevel) && 1 == systemActive) && tmp == waterLevel) && pumpRunning == 0 - InvariantResult [Line: 296]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 83]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 296]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 228]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 422]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 296]: Loop Invariant Derived loop invariant: (((((\result == systemActive && \result == waterLevel) && 1 == systemActive) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((((tmp == systemActive && \result == systemActive) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 161]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: ((\result == systemActive && \result == waterLevel) && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 249]: Loop Invariant Derived loop invariant: (((((\result == systemActive && \result == waterLevel) && 1 == systemActive) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((((tmp == systemActive && \result == systemActive) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 304]: Loop Invariant Derived loop invariant: (((((\result == systemActive && \result == waterLevel) && 1 == systemActive) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((((tmp == systemActive && \result == systemActive) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 304]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 78 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 329 SDtfs, 536 SDslu, 362 SDs, 0 SdLazy, 102 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 91 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 30 LocationsWithAnnotation, 30 PreInvPairs, 44 NumberOfFragments, 310 HoareAnnotationTreeSize, 30 FomulaSimplifications, 352 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 30 FomulaSimplificationsInter, 96 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 173 ConstructedInterpolants, 0 QuantifiedInterpolants, 11358 SizeOfPredicates, 0 NumberOfNonLiveVariables, 374 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 25/30 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...