./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product07.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_product07.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 39c94a2d26e5e2dda9dfb4c9ca89b9f67883d3d4 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 23:07:05,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 23:07:05,315 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 23:07:05,373 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 23:07:05,374 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 23:07:05,379 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 23:07:05,382 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 23:07:05,389 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 23:07:05,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 23:07:05,399 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 23:07:05,401 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 23:07:05,406 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 23:07:05,407 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 23:07:05,410 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 23:07:05,411 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 23:07:05,413 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 23:07:05,415 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 23:07:05,419 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 23:07:05,423 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 23:07:05,430 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 23:07:05,432 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 23:07:05,434 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 23:07:05,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 23:07:05,439 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 23:07:05,447 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 23:07:05,450 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 23:07:05,451 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 23:07:05,452 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 23:07:05,454 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 23:07:05,455 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 23:07:05,457 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 23:07:05,458 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 23:07:05,462 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 23:07:05,464 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 23:07:05,466 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 23:07:05,466 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 23:07:05,467 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 23:07:05,468 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 23:07:05,468 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 23:07:05,471 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 23:07:05,472 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 23:07:05,473 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 23:07:05,535 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 23:07:05,536 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 23:07:05,543 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 23:07:05,544 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 23:07:05,544 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 23:07:05,544 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 23:07:05,545 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 23:07:05,545 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 23:07:05,545 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 23:07:05,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 23:07:05,547 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 23:07:05,548 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 23:07:05,548 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 23:07:05,548 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 23:07:05,549 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 23:07:05,549 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 23:07:05,549 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 23:07:05,550 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 23:07:05,550 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 23:07:05,550 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 23:07:05,551 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 23:07:05,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 23:07:05,551 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 23:07:05,552 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 23:07:05,552 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 23:07:05,552 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 23:07:05,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 23:07:05,553 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 23:07:05,553 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 23:07:05,553 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39c94a2d26e5e2dda9dfb4c9ca89b9f67883d3d4 [2020-10-25 23:07:06,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 23:07:06,037 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 23:07:06,040 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 23:07:06,042 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 23:07:06,043 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 23:07:06,044 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product07.cil.c [2020-10-25 23:07:06,121 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/664c7bb98/afa7c0d1992d43e8b7adc7c21ce9158a/FLAG2cb14d774 [2020-10-25 23:07:06,873 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 23:07:06,873 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product07.cil.c [2020-10-25 23:07:06,891 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/664c7bb98/afa7c0d1992d43e8b7adc7c21ce9158a/FLAG2cb14d774 [2020-10-25 23:07:07,113 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/664c7bb98/afa7c0d1992d43e8b7adc7c21ce9158a [2020-10-25 23:07:07,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 23:07:07,124 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 23:07:07,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 23:07:07,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 23:07:07,130 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 23:07:07,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 11:07:07" (1/1) ... [2020-10-25 23:07:07,134 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e9c8175 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:07, skipping insertion in model container [2020-10-25 23:07:07,134 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 11:07:07" (1/1) ... [2020-10-25 23:07:07,146 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 23:07:07,226 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 23:07:07,632 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 23:07:07,656 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 23:07:07,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 23:07:07,802 INFO L208 MainTranslator]: Completed translation [2020-10-25 23:07:07,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:07 WrapperNode [2020-10-25 23:07:07,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 23:07:07,805 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 23:07:07,805 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 23:07:07,805 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 23:07:07,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:07" (1/1) ... [2020-10-25 23:07:07,833 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:07" (1/1) ... [2020-10-25 23:07:07,883 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 23:07:07,884 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 23:07:07,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 23:07:07,884 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 23:07:07,894 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:07" (1/1) ... [2020-10-25 23:07:07,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:07" (1/1) ... [2020-10-25 23:07:07,900 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:07" (1/1) ... [2020-10-25 23:07:07,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:07" (1/1) ... [2020-10-25 23:07:07,911 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:07" (1/1) ... [2020-10-25 23:07:07,927 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:07" (1/1) ... [2020-10-25 23:07:07,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:07" (1/1) ... [2020-10-25 23:07:07,944 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 23:07:07,945 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 23:07:07,947 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 23:07:07,947 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 23:07:07,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:07" (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 23:07:08,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 23:07:08,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 23:07:08,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 23:07:08,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 23:07:09,136 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 23:07:09,136 INFO L298 CfgBuilder]: Removed 106 assume(true) statements. [2020-10-25 23:07:09,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:07:09 BoogieIcfgContainer [2020-10-25 23:07:09,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 23:07:09,142 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 23:07:09,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 23:07:09,146 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 23:07:09,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 11:07:07" (1/3) ... [2020-10-25 23:07:09,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12cd9b10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 11:07:09, skipping insertion in model container [2020-10-25 23:07:09,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:07" (2/3) ... [2020-10-25 23:07:09,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12cd9b10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 11:07:09, skipping insertion in model container [2020-10-25 23:07:09,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:07:09" (3/3) ... [2020-10-25 23:07:09,155 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product07.cil.c [2020-10-25 23:07:09,168 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 23:07:09,174 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-25 23:07:09,189 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-25 23:07:09,234 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 23:07:09,234 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 23:07:09,234 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 23:07:09,235 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 23:07:09,235 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 23:07:09,235 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 23:07:09,235 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 23:07:09,235 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 23:07:09,259 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-10-25 23:07:09,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-25 23:07:09,267 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:09,267 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:07:09,268 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:09,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:09,274 INFO L82 PathProgramCache]: Analyzing trace with hash 590072261, now seen corresponding path program 1 times [2020-10-25 23:07:09,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:09,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34504298] [2020-10-25 23:07:09,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:09,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:09,544 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 23:07:09,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34504298] [2020-10-25 23:07:09,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:09,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 23:07:09,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536397617] [2020-10-25 23:07:09,553 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 23:07:09,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:09,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 23:07:09,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 23:07:09,572 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 2 states. [2020-10-25 23:07:09,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:09,603 INFO L93 Difference]: Finished difference Result 139 states and 206 transitions. [2020-10-25 23:07:09,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 23:07:09,605 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-10-25 23:07:09,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:09,617 INFO L225 Difference]: With dead ends: 139 [2020-10-25 23:07:09,618 INFO L226 Difference]: Without dead ends: 67 [2020-10-25 23:07:09,622 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 23:07:09,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-10-25 23:07:09,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2020-10-25 23:07:09,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-10-25 23:07:09,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 93 transitions. [2020-10-25 23:07:09,676 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 93 transitions. Word has length 16 [2020-10-25 23:07:09,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:09,677 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 93 transitions. [2020-10-25 23:07:09,677 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 23:07:09,677 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 93 transitions. [2020-10-25 23:07:09,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-25 23:07:09,678 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:09,679 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 23:07:09,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 23:07:09,679 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:09,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:09,680 INFO L82 PathProgramCache]: Analyzing trace with hash -456684636, now seen corresponding path program 1 times [2020-10-25 23:07:09,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:09,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86925146] [2020-10-25 23:07:09,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:09,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:09,793 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 23:07:09,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86925146] [2020-10-25 23:07:09,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:09,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 23:07:09,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432015537] [2020-10-25 23:07:09,796 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:07:09,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:09,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:07:09,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:07:09,798 INFO L87 Difference]: Start difference. First operand 67 states and 93 transitions. Second operand 3 states. [2020-10-25 23:07:09,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:09,821 INFO L93 Difference]: Finished difference Result 67 states and 93 transitions. [2020-10-25 23:07:09,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:07:09,822 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-25 23:07:09,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:09,824 INFO L225 Difference]: With dead ends: 67 [2020-10-25 23:07:09,826 INFO L226 Difference]: Without dead ends: 33 [2020-10-25 23:07:09,827 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 23:07:09,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-25 23:07:09,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-25 23:07:09,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-25 23:07:09,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 46 transitions. [2020-10-25 23:07:09,842 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 46 transitions. Word has length 17 [2020-10-25 23:07:09,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:09,842 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 46 transitions. [2020-10-25 23:07:09,842 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:07:09,843 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 46 transitions. [2020-10-25 23:07:09,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-25 23:07:09,845 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:09,845 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 23:07:09,846 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 23:07:09,846 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:09,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:09,848 INFO L82 PathProgramCache]: Analyzing trace with hash 719253894, now seen corresponding path program 1 times [2020-10-25 23:07:09,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:09,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107607924] [2020-10-25 23:07:09,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:09,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:10,009 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 23:07:10,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107607924] [2020-10-25 23:07:10,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:10,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-25 23:07:10,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238822887] [2020-10-25 23:07:10,012 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-25 23:07:10,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:10,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-25 23:07:10,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-25 23:07:10,014 INFO L87 Difference]: Start difference. First operand 33 states and 46 transitions. Second operand 6 states. [2020-10-25 23:07:10,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:10,254 INFO L93 Difference]: Finished difference Result 110 states and 160 transitions. [2020-10-25 23:07:10,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-25 23:07:10,255 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-10-25 23:07:10,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:10,258 INFO L225 Difference]: With dead ends: 110 [2020-10-25 23:07:10,260 INFO L226 Difference]: Without dead ends: 83 [2020-10-25 23:07:10,262 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 23:07:10,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-10-25 23:07:10,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 52. [2020-10-25 23:07:10,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-25 23:07:10,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 75 transitions. [2020-10-25 23:07:10,284 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 75 transitions. Word has length 22 [2020-10-25 23:07:10,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:10,285 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 75 transitions. [2020-10-25 23:07:10,285 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-25 23:07:10,286 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 75 transitions. [2020-10-25 23:07:10,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-25 23:07:10,287 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:10,288 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 23:07:10,288 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-25 23:07:10,288 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:10,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:10,289 INFO L82 PathProgramCache]: Analyzing trace with hash -842737206, now seen corresponding path program 1 times [2020-10-25 23:07:10,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:10,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455763860] [2020-10-25 23:07:10,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:10,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:10,447 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 23:07:10,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455763860] [2020-10-25 23:07:10,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:10,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-25 23:07:10,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608709859] [2020-10-25 23:07:10,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-25 23:07:10,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:10,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-25 23:07:10,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-25 23:07:10,450 INFO L87 Difference]: Start difference. First operand 52 states and 75 transitions. Second operand 8 states. [2020-10-25 23:07:10,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:10,870 INFO L93 Difference]: Finished difference Result 317 states and 489 transitions. [2020-10-25 23:07:10,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-25 23:07:10,871 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-10-25 23:07:10,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:10,874 INFO L225 Difference]: With dead ends: 317 [2020-10-25 23:07:10,874 INFO L226 Difference]: Without dead ends: 271 [2020-10-25 23:07:10,875 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-25 23:07:10,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-10-25 23:07:10,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 130. [2020-10-25 23:07:10,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-25 23:07:10,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 187 transitions. [2020-10-25 23:07:10,898 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 187 transitions. Word has length 23 [2020-10-25 23:07:10,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:10,898 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 187 transitions. [2020-10-25 23:07:10,898 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-25 23:07:10,898 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 187 transitions. [2020-10-25 23:07:10,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-25 23:07:10,900 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:10,900 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 23:07:10,900 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-25 23:07:10,900 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:10,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:10,901 INFO L82 PathProgramCache]: Analyzing trace with hash 767593024, now seen corresponding path program 1 times [2020-10-25 23:07:10,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:10,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015754018] [2020-10-25 23:07:10,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:10,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:10,967 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 23:07:10,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015754018] [2020-10-25 23:07:10,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:10,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 23:07:10,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284327531] [2020-10-25 23:07:10,969 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:07:10,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:10,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:07:10,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:07:10,970 INFO L87 Difference]: Start difference. First operand 130 states and 187 transitions. Second operand 3 states. [2020-10-25 23:07:10,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:10,990 INFO L93 Difference]: Finished difference Result 239 states and 346 transitions. [2020-10-25 23:07:10,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:07:10,991 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-10-25 23:07:10,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:10,992 INFO L225 Difference]: With dead ends: 239 [2020-10-25 23:07:10,992 INFO L226 Difference]: Without dead ends: 115 [2020-10-25 23:07:10,993 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 23:07:10,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-10-25 23:07:11,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-10-25 23:07:11,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-10-25 23:07:11,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 153 transitions. [2020-10-25 23:07:11,009 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 153 transitions. Word has length 24 [2020-10-25 23:07:11,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:11,009 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 153 transitions. [2020-10-25 23:07:11,010 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:07:11,010 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 153 transitions. [2020-10-25 23:07:11,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-25 23:07:11,011 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:11,012 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 23:07:11,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-25 23:07:11,012 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:11,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:11,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1286222905, now seen corresponding path program 1 times [2020-10-25 23:07:11,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:11,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984984455] [2020-10-25 23:07:11,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:11,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:11,086 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 23:07:11,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984984455] [2020-10-25 23:07:11,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1287808648] [2020-10-25 23:07:11,086 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 23:07:11,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:11,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-25 23:07:11,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 23:07:11,288 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 23:07:11,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 23:07:11,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2020-10-25 23:07:11,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330803216] [2020-10-25 23:07:11,290 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 23:07:11,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:11,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 23:07:11,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:07:11,291 INFO L87 Difference]: Start difference. First operand 115 states and 153 transitions. Second operand 4 states. [2020-10-25 23:07:11,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:11,430 INFO L93 Difference]: Finished difference Result 150 states and 201 transitions. [2020-10-25 23:07:11,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 23:07:11,431 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 39 [2020-10-25 23:07:11,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:11,431 INFO L225 Difference]: With dead ends: 150 [2020-10-25 23:07:11,432 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 23:07:11,433 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 23:07:11,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 23:07:11,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 23:07:11,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 23:07:11,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 23:07:11,434 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2020-10-25 23:07:11,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:11,434 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 23:07:11,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 23:07:11,434 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 23:07:11,434 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 23:07:11,642 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-10-25 23:07:11,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 23:07:11,940 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 29 [2020-10-25 23:07:12,075 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 28 [2020-10-25 23:07:12,490 INFO L274 CegarLoopResult]: For program point L283(lines 283 296) no Hoare annotation was computed. [2020-10-25 23:07:12,491 INFO L270 CegarLoopResult]: At program point L283-1(lines 1 883) the Hoare annotation is: (let ((.cse2 (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0)) (.cse5 (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0)) (.cse0 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1 0))) (.cse1 (not (= |ULTIMATE.start_getWaterLevel_#res| 0))) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= 1 ~waterLevel~0) .cse5) (and (= ~waterLevel~0 1) .cse2 (not (= 0 ~systemActive~0)) .cse3 .cse4 .cse5) (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse3 .cse4))) [2020-10-25 23:07:12,491 INFO L274 CegarLoopResult]: For program point L283-2(lines 283 296) no Hoare annotation was computed. [2020-10-25 23:07:12,491 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-25 23:07:12,491 INFO L270 CegarLoopResult]: At program point L283-3(lines 1 883) the Hoare annotation is: false [2020-10-25 23:07:12,491 INFO L274 CegarLoopResult]: For program point L283-4(lines 283 296) no Hoare annotation was computed. [2020-10-25 23:07:12,491 INFO L270 CegarLoopResult]: At program point L283-5(lines 1 883) the Hoare annotation is: false [2020-10-25 23:07:12,492 INFO L274 CegarLoopResult]: For program point L680(lines 680 684) no Hoare annotation was computed. [2020-10-25 23:07:12,492 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-25 23:07:12,492 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-25 23:07:12,492 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-10-25 23:07:12,492 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 23:07:12,492 INFO L270 CegarLoopResult]: At program point L829(lines 824 832) the Hoare annotation is: false [2020-10-25 23:07:12,492 INFO L270 CegarLoopResult]: At program point L829-1(lines 824 832) the Hoare annotation is: false [2020-10-25 23:07:12,493 INFO L270 CegarLoopResult]: At program point L829-2(lines 824 832) the Hoare annotation is: false [2020-10-25 23:07:12,493 INFO L274 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-10-25 23:07:12,493 INFO L274 CegarLoopResult]: For program point L185-1(line 185) no Hoare annotation was computed. [2020-10-25 23:07:12,494 INFO L274 CegarLoopResult]: For program point L185-2(line 185) no Hoare annotation was computed. [2020-10-25 23:07:12,495 INFO L274 CegarLoopResult]: For program point L780(lines 780 788) no Hoare annotation was computed. [2020-10-25 23:07:12,495 INFO L274 CegarLoopResult]: For program point L780-1(lines 780 788) no Hoare annotation was computed. [2020-10-25 23:07:12,495 INFO L274 CegarLoopResult]: For program point L714(lines 714 720) no Hoare annotation was computed. [2020-10-25 23:07:12,495 INFO L274 CegarLoopResult]: For program point L780-2(lines 780 788) no Hoare annotation was computed. [2020-10-25 23:07:12,496 INFO L270 CegarLoopResult]: At program point L714-1(lines 744 750) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse0 .cse1 (<= 1 ~waterLevel~0) (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0)) (and (<= 2 ~waterLevel~0) .cse0 .cse1))) [2020-10-25 23:07:12,496 INFO L274 CegarLoopResult]: For program point L698(lines 698 704) no Hoare annotation was computed. [2020-10-25 23:07:12,496 INFO L270 CegarLoopResult]: At program point L698-1(lines 698 704) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (<= 1 ~waterLevel~0)) (.cse4 (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0))) (or (and (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1 0)) (not (= |ULTIMATE.start_getWaterLevel_#res| 0)) .cse0 .cse1 .cse2 .cse3 .cse4) (and (<= 2 ~waterLevel~0) .cse1 .cse2) (and .cse0 (not (= 0 ~systemActive~0)) .cse1 .cse2 .cse3 .cse4))) [2020-10-25 23:07:12,496 INFO L270 CegarLoopResult]: At program point L269(lines 264 272) the Hoare annotation is: (let ((.cse0 (not (= |ULTIMATE.start_getWaterLevel_#res| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and .cse0 (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse1 .cse2 (<= 1 ~waterLevel~0) (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0)))) [2020-10-25 23:07:12,496 INFO L270 CegarLoopResult]: At program point L269-1(lines 264 272) the Hoare annotation is: false [2020-10-25 23:07:12,496 INFO L270 CegarLoopResult]: At program point L269-2(lines 264 272) the Hoare annotation is: false [2020-10-25 23:07:12,497 INFO L270 CegarLoopResult]: At program point L237(lines 232 240) the Hoare annotation is: false [2020-10-25 23:07:12,497 INFO L270 CegarLoopResult]: At program point L237-1(lines 232 240) the Hoare annotation is: false [2020-10-25 23:07:12,497 INFO L270 CegarLoopResult]: At program point L237-2(lines 232 240) the Hoare annotation is: false [2020-10-25 23:07:12,497 INFO L274 CegarLoopResult]: For program point L287(lines 287 293) no Hoare annotation was computed. [2020-10-25 23:07:12,497 INFO L274 CegarLoopResult]: For program point L287-2(lines 287 293) no Hoare annotation was computed. [2020-10-25 23:07:12,497 INFO L274 CegarLoopResult]: For program point L287-4(lines 287 293) no Hoare annotation was computed. [2020-10-25 23:07:12,497 INFO L270 CegarLoopResult]: At program point L751(lines 751 757) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse0 .cse1 (<= 1 ~waterLevel~0) (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0)) (and (<= 2 ~waterLevel~0) .cse0 .cse1))) [2020-10-25 23:07:12,498 INFO L270 CegarLoopResult]: At program point L751-1(lines 751 757) the Hoare annotation is: false [2020-10-25 23:07:12,498 INFO L270 CegarLoopResult]: At program point L751-2(lines 751 757) the Hoare annotation is: false [2020-10-25 23:07:12,498 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 23:07:12,498 INFO L270 CegarLoopResult]: At program point L75(lines 70 78) 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 23:07:12,498 INFO L274 CegarLoopResult]: For program point L224(lines 224 228) no Hoare annotation was computed. [2020-10-25 23:07:12,498 INFO L270 CegarLoopResult]: At program point L92-2(lines 92 106) the Hoare annotation is: false [2020-10-25 23:07:12,499 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-25 23:07:12,499 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-25 23:07:12,499 INFO L270 CegarLoopResult]: At program point L820(lines 813 823) the Hoare annotation is: false [2020-10-25 23:07:12,499 INFO L270 CegarLoopResult]: At program point L820-1(lines 813 823) the Hoare annotation is: false [2020-10-25 23:07:12,499 INFO L270 CegarLoopResult]: At program point L820-2(lines 813 823) the Hoare annotation is: false [2020-10-25 23:07:12,499 INFO L274 CegarLoopResult]: For program point L688(lines 688 694) no Hoare annotation was computed. [2020-10-25 23:07:12,499 INFO L277 CegarLoopResult]: At program point L176(lines 157 179) the Hoare annotation is: true [2020-10-25 23:07:12,499 INFO L270 CegarLoopResult]: At program point L143(lines 139 145) the Hoare annotation is: (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0) (= ULTIMATE.start_main_~tmp~0 ~systemActive~0) (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0)) [2020-10-25 23:07:12,500 INFO L270 CegarLoopResult]: At program point L688-1(lines 688 694) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (<= 1 ~waterLevel~0)) (.cse4 (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0))) (or (and (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1 0)) (not (= |ULTIMATE.start_getWaterLevel_#res| 0)) .cse0 .cse1 .cse2 .cse3 .cse4) (and (<= 2 ~waterLevel~0) .cse1 .cse2) (and .cse0 (not (= 0 ~systemActive~0)) .cse1 .cse2 .cse3 .cse4))) [2020-10-25 23:07:12,500 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 23:07:12,500 INFO L274 CegarLoopResult]: For program point L96(lines 96 100) no Hoare annotation was computed. [2020-10-25 23:07:12,500 INFO L274 CegarLoopResult]: For program point L96-1(lines 744 750) no Hoare annotation was computed. [2020-10-25 23:07:12,500 INFO L274 CegarLoopResult]: For program point L212(lines 212 216) no Hoare annotation was computed. [2020-10-25 23:07:12,500 INFO L274 CegarLoopResult]: For program point L873(lines 873 879) no Hoare annotation was computed. [2020-10-25 23:07:12,501 INFO L270 CegarLoopResult]: At program point L873-1(lines 873 879) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse0 .cse1 (<= 1 ~waterLevel~0) (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0)) (and (<= 2 ~waterLevel~0) .cse0 .cse1))) [2020-10-25 23:07:12,501 INFO L274 CegarLoopResult]: For program point L708(lines 708 721) no Hoare annotation was computed. [2020-10-25 23:07:12,501 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 23:07:12,501 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-25 23:07:12,501 INFO L270 CegarLoopResult]: At program point L726(lines 677 727) the Hoare annotation is: false [2020-10-25 23:07:12,501 INFO L274 CegarLoopResult]: For program point L776(lines 776 793) no Hoare annotation was computed. [2020-10-25 23:07:12,501 INFO L274 CegarLoopResult]: For program point L776-1(lines 776 793) no Hoare annotation was computed. [2020-10-25 23:07:12,501 INFO L274 CegarLoopResult]: For program point L776-2(lines 776 793) no Hoare annotation was computed. [2020-10-25 23:07:12,502 INFO L270 CegarLoopResult]: At program point L744(lines 743 762) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse0 .cse1 (<= 1 ~waterLevel~0) (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0)) (and (<= 2 ~waterLevel~0) .cse0 .cse1))) [2020-10-25 23:07:12,502 INFO L274 CegarLoopResult]: For program point L744-1(lines 744 750) no Hoare annotation was computed. [2020-10-25 23:07:12,502 INFO L270 CegarLoopResult]: At program point L744-2(lines 743 762) the Hoare annotation is: false [2020-10-25 23:07:12,502 INFO L270 CegarLoopResult]: At program point L744-3(lines 743 762) the Hoare annotation is: false [2020-10-25 23:07:12,503 INFO L270 CegarLoopResult]: At program point L67(lines 1 883) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-10-25 23:07:12,503 INFO L274 CegarLoopResult]: For program point L200(lines 200 204) no Hoare annotation was computed. [2020-10-25 23:07:12,503 INFO L274 CegarLoopResult]: For program point L167(lines 167 174) no Hoare annotation was computed. [2020-10-25 23:07:12,503 INFO L274 CegarLoopResult]: For program point L679(lines 678 725) no Hoare annotation was computed. [2020-10-25 23:07:12,504 INFO L277 CegarLoopResult]: At program point L167-1(lines 167 174) the Hoare annotation is: true [2020-10-25 23:07:12,504 INFO L274 CegarLoopResult]: For program point L200-3(lines 200 204) no Hoare annotation was computed. [2020-10-25 23:07:12,505 INFO L274 CegarLoopResult]: For program point L200-6(lines 200 204) no Hoare annotation was computed. [2020-10-25 23:07:12,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 11:07:12 BoogieIcfgContainer [2020-10-25 23:07:12,558 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 23:07:12,559 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 23:07:12,559 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 23:07:12,561 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 23:07:12,562 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:07:09" (3/4) ... [2020-10-25 23:07:12,565 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 23:07:12,591 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-10-25 23:07:12,592 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-10-25 23:07:12,593 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-10-25 23:07:12,593 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-10-25 23:07:12,594 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-25 23:07:12,595 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 23:07:12,595 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 23:07:12,625 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == systemActive && \result == waterLevel) && 1 == systemActive) && pumpRunning == 0 [2020-10-25 23:07:12,626 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\result == waterLevel && 1 == systemActive) && pumpRunning == 0) && tmp == systemActive) && tmp == waterLevel [2020-10-25 23:07:12,626 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(tmp == 0) && !(\result == 0)) && \result == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) || (((((waterLevel == 1 && \result == waterLevel) && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && tmp == waterLevel)) || ((((!(tmp == 0) && !(\result == 0)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) [2020-10-25 23:07:12,626 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(tmp == 0) && !(\result == 0)) && \result == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) || ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0)) || (((((\result == waterLevel && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) [2020-10-25 23:07:12,627 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(tmp == 0) && !(\result == 0)) && \result == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) || ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0)) || (((((\result == waterLevel && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) [2020-10-25 23:07:12,627 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\result == waterLevel && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) || ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) [2020-10-25 23:07:12,627 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\result == waterLevel && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) || ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) [2020-10-25 23:07:12,628 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\result == waterLevel && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) || ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) [2020-10-25 23:07:12,628 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\result == waterLevel && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) || ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) [2020-10-25 23:07:12,629 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\result == 0) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((((!(\result == 0) && \result == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) [2020-10-25 23:07:12,709 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 23:07:12,710 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 23:07:12,711 INFO L168 Benchmark]: Toolchain (without parser) took 5592.27 ms. Allocated memory was 46.1 MB in the beginning and 83.9 MB in the end (delta: 37.7 MB). Free memory was 22.1 MB in the beginning and 61.9 MB in the end (delta: -39.8 MB). Peak memory consumption was 40.9 MB. Max. memory is 16.1 GB. [2020-10-25 23:07:12,711 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 46.1 MB. Free memory is still 28.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 23:07:12,712 INFO L168 Benchmark]: CACSL2BoogieTranslator took 678.47 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 21.5 MB in the beginning and 34.0 MB in the end (delta: -12.5 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. [2020-10-25 23:07:12,712 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.31 ms. Allocated memory is still 56.6 MB. Free memory was 33.8 MB in the beginning and 30.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 23:07:12,713 INFO L168 Benchmark]: Boogie Preprocessor took 60.90 ms. Allocated memory is still 56.6 MB. Free memory was 30.9 MB in the beginning and 28.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 23:07:12,713 INFO L168 Benchmark]: RCFGBuilder took 1194.58 ms. Allocated memory is still 56.6 MB. Free memory was 28.8 MB in the beginning and 22.0 MB in the end (delta: 6.8 MB). Peak memory consumption was 10.4 MB. Max. memory is 16.1 GB. [2020-10-25 23:07:12,714 INFO L168 Benchmark]: TraceAbstraction took 3416.57 ms. Allocated memory was 56.6 MB in the beginning and 83.9 MB in the end (delta: 27.3 MB). Free memory was 21.7 MB in the beginning and 29.6 MB in the end (delta: -7.9 MB). Peak memory consumption was 25.5 MB. Max. memory is 16.1 GB. [2020-10-25 23:07:12,714 INFO L168 Benchmark]: Witness Printer took 150.96 ms. Allocated memory is still 83.9 MB. Free memory was 28.9 MB in the beginning and 61.9 MB in the end (delta: -33.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-10-25 23:07:12,717 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 46.1 MB. Free memory is still 28.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 678.47 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 21.5 MB in the beginning and 34.0 MB in the end (delta: -12.5 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 78.31 ms. Allocated memory is still 56.6 MB. Free memory was 33.8 MB in the beginning and 30.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 60.90 ms. Allocated memory is still 56.6 MB. Free memory was 30.9 MB in the beginning and 28.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1194.58 ms. Allocated memory is still 56.6 MB. Free memory was 28.8 MB in the beginning and 22.0 MB in the end (delta: 6.8 MB). Peak memory consumption was 10.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3416.57 ms. Allocated memory was 56.6 MB in the beginning and 83.9 MB in the end (delta: 27.3 MB). Free memory was 21.7 MB in the beginning and 29.6 MB in the end (delta: -7.9 MB). Peak memory consumption was 25.5 MB. Max. memory is 16.1 GB. * Witness Printer took 150.96 ms. Allocated memory is still 83.9 MB. Free memory was 28.9 MB in the beginning and 61.9 MB in the end (delta: -33.1 MB). Peak memory consumption was 8.4 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: 698]: Loop Invariant Derived loop invariant: (((((((!(tmp == 0) && !(\result == 0)) && \result == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) || ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0)) || (((((\result == waterLevel && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((((!(tmp == 0) && !(\result == 0)) && \result == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) || (((((waterLevel == 1 && \result == waterLevel) && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && tmp == waterLevel)) || ((((!(tmp == 0) && !(\result == 0)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 751]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 751]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 743]: Loop Invariant Derived loop invariant: ((((\result == waterLevel && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) || ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 232]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 232]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 743]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 232]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (waterLevel == 1 && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 743]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 751]: Loop Invariant Derived loop invariant: ((((\result == waterLevel && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) || ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 139]: Loop Invariant Derived loop invariant: (((\result == waterLevel && 1 == systemActive) && pumpRunning == 0) && tmp == systemActive) && tmp == waterLevel - InvariantResult [Line: 92]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 157]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 677]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 813]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 744]: Loop Invariant Derived loop invariant: ((((\result == waterLevel && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) || ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 813]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: ((\result == systemActive && \result == waterLevel) && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 873]: Loop Invariant Derived loop invariant: ((((\result == waterLevel && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) || ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 264]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 824]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 813]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 264]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 824]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 264]: Loop Invariant Derived loop invariant: (((!(\result == 0) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((((!(\result == 0) && \result == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) - InvariantResult [Line: 824]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 688]: Loop Invariant Derived loop invariant: (((((((!(tmp == 0) && !(\result == 0)) && \result == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) || ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0)) || (((((\result == waterLevel && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 74 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.4s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 336 SDtfs, 580 SDslu, 605 SDs, 0 SdLazy, 106 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=130occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 172 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 32 LocationsWithAnnotation, 32 PreInvPairs, 64 NumberOfFragments, 376 HoareAnnotationTreeSize, 32 FomulaSimplifications, 1373 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 32 FomulaSimplificationsInter, 128 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s 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...