./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product06.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d 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_1.3.100.v20150511-1540.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_product06.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 d83ceaa193cdbbc22bebc7351a9d6525d7bceeb6 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 01:43:47,568 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:43:47,570 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:43:47,598 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:43:47,599 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:43:47,600 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:43:47,601 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:43:47,603 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:43:47,605 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:43:47,606 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:43:47,607 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:43:47,608 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:43:47,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:43:47,609 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:43:47,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:43:47,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:43:47,612 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:43:47,613 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:43:47,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:43:47,617 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:43:47,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:43:47,628 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:43:47,629 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:43:47,630 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:43:47,633 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:43:47,633 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:43:47,633 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:43:47,634 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:43:47,634 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:43:47,635 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:43:47,635 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:43:47,636 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:43:47,637 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:43:47,638 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:43:47,639 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:43:47,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:43:47,640 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:43:47,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:43:47,640 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:43:47,641 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:43:47,642 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:43:47,642 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:43:47,664 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:43:47,665 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:43:47,666 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:43:47,666 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:43:47,666 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:43:47,666 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:43:47,667 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:43:47,667 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:43:47,667 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:43:47,667 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:43:47,667 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:43:47,667 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:43:47,668 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:43:47,668 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:43:47,668 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:43:47,668 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:43:47,668 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:43:47,669 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:43:47,669 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:43:47,669 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:43:47,669 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:43:47,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:43:47,670 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:43:47,670 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:43:47,670 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:43:47,670 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:43:47,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:43:47,670 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:43:47,671 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:43:47,671 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> d83ceaa193cdbbc22bebc7351a9d6525d7bceeb6 [2020-10-20 01:43:47,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:43:47,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:43:47,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:43:47,897 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:43:47,897 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:43:47,898 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product06.cil.c [2020-10-20 01:43:47,990 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7a7cfdcb/5a52dcf22410459c900041507f3b5a4f/FLAGf37b8c1b9 [2020-10-20 01:43:48,571 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:43:48,573 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product06.cil.c [2020-10-20 01:43:48,588 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7a7cfdcb/5a52dcf22410459c900041507f3b5a4f/FLAGf37b8c1b9 [2020-10-20 01:43:48,815 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7a7cfdcb/5a52dcf22410459c900041507f3b5a4f [2020-10-20 01:43:48,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:43:48,826 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:43:48,827 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:43:48,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:43:48,831 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:43:48,832 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:43:48" (1/1) ... [2020-10-20 01:43:48,835 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51f5c925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:48, skipping insertion in model container [2020-10-20 01:43:48,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:43:48" (1/1) ... [2020-10-20 01:43:48,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:43:48,880 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:43:49,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:43:49,275 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:43:49,393 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:43:49,440 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:43:49,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:49 WrapperNode [2020-10-20 01:43:49,440 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:43:49,441 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:43:49,441 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:43:49,441 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:43:49,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:49" (1/1) ... [2020-10-20 01:43:49,468 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:49" (1/1) ... [2020-10-20 01:43:49,511 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:43:49,511 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:43:49,511 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:43:49,511 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:43:49,522 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:49" (1/1) ... [2020-10-20 01:43:49,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:49" (1/1) ... [2020-10-20 01:43:49,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:49" (1/1) ... [2020-10-20 01:43:49,527 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:49" (1/1) ... [2020-10-20 01:43:49,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:49" (1/1) ... [2020-10-20 01:43:49,550 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:49" (1/1) ... [2020-10-20 01:43:49,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:49" (1/1) ... [2020-10-20 01:43:49,561 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:43:49,562 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:43:49,562 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:43:49,562 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:43:49,563 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:49" (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 [2020-10-20 01:43:49,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:43:49,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:43:49,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:43:49,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:43:50,507 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:43:50,507 INFO L298 CfgBuilder]: Removed 104 assume(true) statements. [2020-10-20 01:43:50,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:50 BoogieIcfgContainer [2020-10-20 01:43:50,509 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:43:50,511 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:43:50,511 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:43:50,514 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:43:50,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:43:48" (1/3) ... [2020-10-20 01:43:50,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11f9f83d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:43:50, skipping insertion in model container [2020-10-20 01:43:50,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:49" (2/3) ... [2020-10-20 01:43:50,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11f9f83d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:43:50, skipping insertion in model container [2020-10-20 01:43:50,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:50" (3/3) ... [2020-10-20 01:43:50,518 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product06.cil.c [2020-10-20 01:43:50,530 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:43:50,538 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-20 01:43:50,552 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-20 01:43:50,579 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:43:50,579 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:43:50,579 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:43:50,579 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:43:50,580 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:43:50,580 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:43:50,580 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:43:50,580 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:43:50,599 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states. [2020-10-20 01:43:50,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-20 01:43:50,607 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:50,608 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:43:50,608 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:50,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:50,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1934504515, now seen corresponding path program 1 times [2020-10-20 01:43:50,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:50,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255177673] [2020-10-20 01:43:50,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:50,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:50,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:43:50,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255177673] [2020-10-20 01:43:50,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:50,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:43:50,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643772257] [2020-10-20 01:43:50,927 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 01:43:50,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:50,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 01:43:50,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:43:50,945 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 2 states. [2020-10-20 01:43:50,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:50,975 INFO L93 Difference]: Finished difference Result 135 states and 200 transitions. [2020-10-20 01:43:50,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 01:43:50,977 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-10-20 01:43:50,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:50,990 INFO L225 Difference]: With dead ends: 135 [2020-10-20 01:43:50,990 INFO L226 Difference]: Without dead ends: 65 [2020-10-20 01:43:50,994 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 [2020-10-20 01:43:51,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-10-20 01:43:51,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-10-20 01:43:51,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-20 01:43:51,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 90 transitions. [2020-10-20 01:43:51,034 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 90 transitions. Word has length 16 [2020-10-20 01:43:51,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:51,034 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 90 transitions. [2020-10-20 01:43:51,034 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 01:43:51,034 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 90 transitions. [2020-10-20 01:43:51,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 01:43:51,036 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:51,036 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:43:51,036 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:43:51,036 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:51,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:51,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1313705884, now seen corresponding path program 1 times [2020-10-20 01:43:51,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:51,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62288159] [2020-10-20 01:43:51,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:51,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:51,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:43:51,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62288159] [2020-10-20 01:43:51,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:51,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:43:51,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360613695] [2020-10-20 01:43:51,171 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:43:51,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:51,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:43:51,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:43:51,172 INFO L87 Difference]: Start difference. First operand 65 states and 90 transitions. Second operand 3 states. [2020-10-20 01:43:51,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:51,184 INFO L93 Difference]: Finished difference Result 65 states and 90 transitions. [2020-10-20 01:43:51,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:43:51,185 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-20 01:43:51,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:51,186 INFO L225 Difference]: With dead ends: 65 [2020-10-20 01:43:51,186 INFO L226 Difference]: Without dead ends: 31 [2020-10-20 01:43:51,187 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 [2020-10-20 01:43:51,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-20 01:43:51,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-20 01:43:51,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-20 01:43:51,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 43 transitions. [2020-10-20 01:43:51,193 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 43 transitions. Word has length 17 [2020-10-20 01:43:51,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:51,193 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 43 transitions. [2020-10-20 01:43:51,193 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:43:51,193 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2020-10-20 01:43:51,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-20 01:43:51,194 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:51,194 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] [2020-10-20 01:43:51,195 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:43:51,195 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:51,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:51,195 INFO L82 PathProgramCache]: Analyzing trace with hash 914910598, now seen corresponding path program 1 times [2020-10-20 01:43:51,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:51,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073915467] [2020-10-20 01:43:51,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:51,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:51,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:43:51,318 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073915467] [2020-10-20 01:43:51,318 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:51,319 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:43:51,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245837715] [2020-10-20 01:43:51,319 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:43:51,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:51,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:43:51,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:43:51,320 INFO L87 Difference]: Start difference. First operand 31 states and 43 transitions. Second operand 3 states. [2020-10-20 01:43:51,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:51,344 INFO L93 Difference]: Finished difference Result 56 states and 80 transitions. [2020-10-20 01:43:51,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:43:51,345 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-10-20 01:43:51,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:51,346 INFO L225 Difference]: With dead ends: 56 [2020-10-20 01:43:51,346 INFO L226 Difference]: Without dead ends: 31 [2020-10-20 01:43:51,347 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 [2020-10-20 01:43:51,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-20 01:43:51,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-20 01:43:51,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-20 01:43:51,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2020-10-20 01:43:51,352 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 22 [2020-10-20 01:43:51,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:51,353 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2020-10-20 01:43:51,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:43:51,353 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2020-10-20 01:43:51,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-20 01:43:51,354 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:51,354 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] [2020-10-20 01:43:51,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 01:43:51,355 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:51,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:51,355 INFO L82 PathProgramCache]: Analyzing trace with hash 927653314, now seen corresponding path program 1 times [2020-10-20 01:43:51,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:51,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977765056] [2020-10-20 01:43:51,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:51,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:51,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:43:51,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977765056] [2020-10-20 01:43:51,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:51,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 01:43:51,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906708286] [2020-10-20 01:43:51,468 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 01:43:51,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:51,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 01:43:51,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-20 01:43:51,469 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand 7 states. [2020-10-20 01:43:51,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:51,693 INFO L93 Difference]: Finished difference Result 178 states and 266 transitions. [2020-10-20 01:43:51,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-20 01:43:51,694 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-10-20 01:43:51,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:51,696 INFO L225 Difference]: With dead ends: 178 [2020-10-20 01:43:51,696 INFO L226 Difference]: Without dead ends: 153 [2020-10-20 01:43:51,697 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-20 01:43:51,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-10-20 01:43:51,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 72. [2020-10-20 01:43:51,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-20 01:43:51,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 100 transitions. [2020-10-20 01:43:51,713 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 100 transitions. Word has length 23 [2020-10-20 01:43:51,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:51,714 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 100 transitions. [2020-10-20 01:43:51,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 01:43:51,714 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 100 transitions. [2020-10-20 01:43:51,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 01:43:51,715 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:51,715 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] [2020-10-20 01:43:51,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 01:43:51,716 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:51,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:51,716 INFO L82 PathProgramCache]: Analyzing trace with hash -184875712, now seen corresponding path program 1 times [2020-10-20 01:43:51,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:51,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030416873] [2020-10-20 01:43:51,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:51,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:51,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:43:51,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030416873] [2020-10-20 01:43:51,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:51,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:43:51,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014970477] [2020-10-20 01:43:51,804 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:43:51,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:51,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:43:51,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:43:51,805 INFO L87 Difference]: Start difference. First operand 72 states and 100 transitions. Second operand 3 states. [2020-10-20 01:43:51,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:51,818 INFO L93 Difference]: Finished difference Result 126 states and 177 transitions. [2020-10-20 01:43:51,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:43:51,819 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-10-20 01:43:51,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:51,820 INFO L225 Difference]: With dead ends: 126 [2020-10-20 01:43:51,820 INFO L226 Difference]: Without dead ends: 60 [2020-10-20 01:43:51,821 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 [2020-10-20 01:43:51,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-20 01:43:51,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-10-20 01:43:51,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-20 01:43:51,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 77 transitions. [2020-10-20 01:43:51,831 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 77 transitions. Word has length 24 [2020-10-20 01:43:51,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:51,831 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 77 transitions. [2020-10-20 01:43:51,831 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:43:51,832 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 77 transitions. [2020-10-20 01:43:51,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-20 01:43:51,833 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:51,833 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] [2020-10-20 01:43:51,834 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 01:43:51,834 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:51,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:51,834 INFO L82 PathProgramCache]: Analyzing trace with hash -1477751617, now seen corresponding path program 1 times [2020-10-20 01:43:51,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:51,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506756185] [2020-10-20 01:43:51,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:51,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:51,941 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:43:51,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506756185] [2020-10-20 01:43:51,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795700146] [2020-10-20 01:43:51,943 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 [2020-10-20 01:43:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:52,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 01:43:52,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:43:52,199 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:43:52,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-20 01:43:52,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2020-10-20 01:43:52,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564819234] [2020-10-20 01:43:52,202 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:43:52,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:52,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:43:52,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:43:52,205 INFO L87 Difference]: Start difference. First operand 60 states and 77 transitions. Second operand 4 states. [2020-10-20 01:43:52,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:52,348 INFO L93 Difference]: Finished difference Result 77 states and 100 transitions. [2020-10-20 01:43:52,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 01:43:52,349 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 39 [2020-10-20 01:43:52,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:52,350 INFO L225 Difference]: With dead ends: 77 [2020-10-20 01:43:52,350 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 01:43:52,351 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 [2020-10-20 01:43:52,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 01:43:52,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 01:43:52,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 01:43:52,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 01:43:52,355 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2020-10-20 01:43:52,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:52,356 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 01:43:52,356 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:43:52,356 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 01:43:52,357 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 01:43:52,567 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-10-20 01:43:52,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 01:43:52,988 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:43:52,989 INFO L274 CegarLoopResult]: For program point L432(lines 432 438) no Hoare annotation was computed. [2020-10-20 01:43:52,989 INFO L270 CegarLoopResult]: At program point L432-1(lines 432 438) the Hoare annotation is: (and (= 1 ~systemActive~0) (= ~pumpRunning~0 0) (<= 1 ~waterLevel~0) (= ULTIMATE.start_test_~splverifierCounter~0 0)) [2020-10-20 01:43:52,989 INFO L274 CegarLoopResult]: For program point L300(lines 300 317) no Hoare annotation was computed. [2020-10-20 01:43:52,989 INFO L274 CegarLoopResult]: For program point L300-1(lines 300 317) no Hoare annotation was computed. [2020-10-20 01:43:52,989 INFO L274 CegarLoopResult]: For program point L300-2(lines 300 317) no Hoare annotation was computed. [2020-10-20 01:43:52,990 INFO L274 CegarLoopResult]: For program point L168(lines 168 172) no Hoare annotation was computed. [2020-10-20 01:43:52,990 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-20 01:43:52,990 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-20 01:43:52,991 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-10-20 01:43:52,991 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 01:43:52,991 INFO L270 CegarLoopResult]: At program point L268(lines 267 286) the Hoare annotation is: (and (= 1 ~systemActive~0) (= ~pumpRunning~0 0) (<= 1 ~waterLevel~0) (= ULTIMATE.start_test_~splverifierCounter~0 0)) [2020-10-20 01:43:52,991 INFO L274 CegarLoopResult]: For program point L268-1(lines 268 274) no Hoare annotation was computed. [2020-10-20 01:43:52,992 INFO L270 CegarLoopResult]: At program point L268-2(lines 267 286) the Hoare annotation is: false [2020-10-20 01:43:52,992 INFO L270 CegarLoopResult]: At program point L268-3(lines 267 286) the Hoare annotation is: false [2020-10-20 01:43:52,992 INFO L274 CegarLoopResult]: For program point L450(lines 450 454) no Hoare annotation was computed. [2020-10-20 01:43:52,992 INFO L270 CegarLoopResult]: At program point L450-2(lines 268 274) the Hoare annotation is: (and (= 1 ~systemActive~0) (= ~pumpRunning~0 0) (<= 1 ~waterLevel~0) (= ULTIMATE.start_test_~splverifierCounter~0 0)) [2020-10-20 01:43:52,992 INFO L270 CegarLoopResult]: At program point L54-2(lines 54 68) the Hoare annotation is: false [2020-10-20 01:43:52,993 INFO L274 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-10-20 01:43:52,993 INFO L270 CegarLoopResult]: At program point L105(lines 101 107) the Hoare annotation is: (and (= ~waterLevel~0 ~systemActive~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-10-20 01:43:52,993 INFO L270 CegarLoopResult]: At program point L865(lines 860 868) the Hoare annotation is: (and (= ~waterLevel~0 ~systemActive~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-10-20 01:43:52,993 INFO L270 CegarLoopResult]: At program point L353(lines 348 356) the Hoare annotation is: false [2020-10-20 01:43:52,994 INFO L270 CegarLoopResult]: At program point L353-1(lines 348 356) the Hoare annotation is: false [2020-10-20 01:43:52,994 INFO L270 CegarLoopResult]: At program point L353-2(lines 348 356) the Hoare annotation is: false [2020-10-20 01:43:52,994 INFO L274 CegarLoopResult]: For program point L304(lines 304 312) no Hoare annotation was computed. [2020-10-20 01:43:52,994 INFO L274 CegarLoopResult]: For program point L304-1(lines 304 312) no Hoare annotation was computed. [2020-10-20 01:43:52,995 INFO L274 CegarLoopResult]: For program point L304-2(lines 304 312) no Hoare annotation was computed. [2020-10-20 01:43:52,995 INFO L274 CegarLoopResult]: For program point L156(lines 156 160) no Hoare annotation was computed. [2020-10-20 01:43:52,995 INFO L274 CegarLoopResult]: For program point L156-3(lines 156 160) no Hoare annotation was computed. [2020-10-20 01:43:52,995 INFO L274 CegarLoopResult]: For program point L156-6(lines 156 160) no Hoare annotation was computed. [2020-10-20 01:43:52,995 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 01:43:52,996 INFO L274 CegarLoopResult]: For program point L58(lines 58 62) no Hoare annotation was computed. [2020-10-20 01:43:52,996 INFO L274 CegarLoopResult]: For program point L58-1(lines 268 274) no Hoare annotation was computed. [2020-10-20 01:43:52,996 INFO L274 CegarLoopResult]: For program point L240(lines 240 253) no Hoare annotation was computed. [2020-10-20 01:43:52,996 INFO L270 CegarLoopResult]: At program point L240-1(lines 1 877) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ~waterLevel~0 ~systemActive~0) .cse0 .cse1 .cse2) (and (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1 0)) (not (= |ULTIMATE.start_getWaterLevel_#res| 0)) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2))) [2020-10-20 01:43:52,997 INFO L274 CegarLoopResult]: For program point L240-2(lines 240 253) no Hoare annotation was computed. [2020-10-20 01:43:52,997 INFO L270 CegarLoopResult]: At program point L240-3(lines 1 877) the Hoare annotation is: false [2020-10-20 01:43:52,997 INFO L277 CegarLoopResult]: At program point L141(lines 122 144) the Hoare annotation is: true [2020-10-20 01:43:52,997 INFO L274 CegarLoopResult]: For program point L240-4(lines 240 253) no Hoare annotation was computed. [2020-10-20 01:43:52,998 INFO L270 CegarLoopResult]: At program point L240-5(lines 1 877) the Hoare annotation is: false [2020-10-20 01:43:52,998 INFO L274 CegarLoopResult]: For program point L422(lines 422 428) no Hoare annotation was computed. [2020-10-20 01:43:52,998 INFO L270 CegarLoopResult]: At program point L422-1(lines 422 428) the Hoare annotation is: (and (= 1 ~systemActive~0) (= ~pumpRunning~0 0) (<= 1 ~waterLevel~0) (= ULTIMATE.start_test_~splverifierCounter~0 0)) [2020-10-20 01:43:52,998 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:43:52,999 INFO L270 CegarLoopResult]: At program point L225(lines 220 228) the Hoare annotation is: (and (not (= |ULTIMATE.start_getWaterLevel_#res| 0)) (= 1 ~systemActive~0) (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0)) [2020-10-20 01:43:52,999 INFO L270 CegarLoopResult]: At program point L225-1(lines 220 228) the Hoare annotation is: false [2020-10-20 01:43:52,999 INFO L270 CegarLoopResult]: At program point L225-2(lines 220 228) the Hoare annotation is: false [2020-10-20 01:43:53,000 INFO L270 CegarLoopResult]: At program point L275(lines 275 281) the Hoare annotation is: (and (= 1 ~systemActive~0) (= ~pumpRunning~0 0) (<= 1 ~waterLevel~0) (= ULTIMATE.start_test_~splverifierCounter~0 0)) [2020-10-20 01:43:53,000 INFO L270 CegarLoopResult]: At program point L275-1(lines 275 281) the Hoare annotation is: false [2020-10-20 01:43:53,000 INFO L270 CegarLoopResult]: At program point L275-2(lines 275 281) the Hoare annotation is: false [2020-10-20 01:43:53,000 INFO L270 CegarLoopResult]: At program point L193(lines 188 196) the Hoare annotation is: false [2020-10-20 01:43:53,001 INFO L270 CegarLoopResult]: At program point L193-1(lines 188 196) the Hoare annotation is: false [2020-10-20 01:43:53,001 INFO L270 CegarLoopResult]: At program point L193-2(lines 188 196) the Hoare annotation is: false [2020-10-20 01:43:53,001 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 01:43:53,001 INFO L274 CegarLoopResult]: For program point L442(lines 442 455) no Hoare annotation was computed. [2020-10-20 01:43:53,013 INFO L274 CegarLoopResult]: For program point L244(lines 244 250) no Hoare annotation was computed. [2020-10-20 01:43:53,013 INFO L274 CegarLoopResult]: For program point L244-2(lines 244 250) no Hoare annotation was computed. [2020-10-20 01:43:53,014 INFO L274 CegarLoopResult]: For program point L244-4(lines 244 250) no Hoare annotation was computed. [2020-10-20 01:43:53,014 INFO L270 CegarLoopResult]: At program point L344(lines 337 347) the Hoare annotation is: false [2020-10-20 01:43:53,014 INFO L270 CegarLoopResult]: At program point L344-1(lines 337 347) the Hoare annotation is: false [2020-10-20 01:43:53,014 INFO L270 CegarLoopResult]: At program point L344-2(lines 337 347) the Hoare annotation is: false [2020-10-20 01:43:53,015 INFO L270 CegarLoopResult]: At program point L460(lines 411 461) the Hoare annotation is: false [2020-10-20 01:43:53,015 INFO L270 CegarLoopResult]: At program point L857(lines 1 877) the Hoare annotation is: (and (= ~waterLevel~0 ~systemActive~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-10-20 01:43:53,015 INFO L274 CegarLoopResult]: For program point L180(lines 180 184) no Hoare annotation was computed. [2020-10-20 01:43:53,015 INFO L274 CegarLoopResult]: For program point L874(line 874) no Hoare annotation was computed. [2020-10-20 01:43:53,016 INFO L274 CegarLoopResult]: For program point L874-1(line 874) no Hoare annotation was computed. [2020-10-20 01:43:53,016 INFO L274 CegarLoopResult]: For program point L874-2(line 874) no Hoare annotation was computed. [2020-10-20 01:43:53,016 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 01:43:53,016 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:43:53,016 INFO L274 CegarLoopResult]: For program point L132(lines 132 139) no Hoare annotation was computed. [2020-10-20 01:43:53,017 INFO L277 CegarLoopResult]: At program point L132-1(lines 132 139) the Hoare annotation is: true [2020-10-20 01:43:53,017 INFO L274 CegarLoopResult]: For program point L413(lines 412 459) no Hoare annotation was computed. [2020-10-20 01:43:53,017 INFO L274 CegarLoopResult]: For program point L414(lines 414 418) no Hoare annotation was computed. [2020-10-20 01:43:53,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:43:53 BoogieIcfgContainer [2020-10-20 01:43:53,039 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:43:53,040 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:43:53,040 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:43:53,040 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:43:53,041 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:50" (3/4) ... [2020-10-20 01:43:53,045 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 01:43:53,064 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-10-20 01:43:53,065 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-10-20 01:43:53,066 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-10-20 01:43:53,066 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-10-20 01:43:53,067 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-20 01:43:53,068 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:43:53,069 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:43:53,103 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) || (((((!(tmp == 0) && !(\result == 0)) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) [2020-10-20 01:43:53,106 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\result == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel [2020-10-20 01:43:53,167 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:43:53,167 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:43:53,170 INFO L168 Benchmark]: Toolchain (without parser) took 4348.65 ms. Allocated memory was 35.7 MB in the beginning and 66.1 MB in the end (delta: 30.4 MB). Free memory was 14.7 MB in the beginning and 34.7 MB in the end (delta: -20.0 MB). Peak memory consumption was 10.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:53,171 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 34.1 MB. Free memory was 10.1 MB in the beginning and 10.0 MB in the end (delta: 63.0 kB). Peak memory consumption was 63.0 kB. Max. memory is 14.3 GB. [2020-10-20 01:43:53,171 INFO L168 Benchmark]: CACSL2BoogieTranslator took 613.49 ms. Allocated memory was 35.7 MB in the beginning and 46.7 MB in the end (delta: 11.0 MB). Free memory was 13.8 MB in the beginning and 28.1 MB in the end (delta: -14.3 MB). Peak memory consumption was 12.8 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:53,172 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.91 ms. Allocated memory is still 46.7 MB. Free memory was 28.1 MB in the beginning and 25.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:53,172 INFO L168 Benchmark]: Boogie Preprocessor took 50.27 ms. Allocated memory is still 46.7 MB. Free memory was 25.0 MB in the beginning and 22.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:53,173 INFO L168 Benchmark]: RCFGBuilder took 947.71 ms. Allocated memory was 46.7 MB in the beginning and 48.8 MB in the end (delta: 2.1 MB). Free memory was 22.5 MB in the beginning and 21.8 MB in the end (delta: 764.6 kB). Peak memory consumption was 13.1 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:53,173 INFO L168 Benchmark]: TraceAbstraction took 2528.76 ms. Allocated memory was 48.8 MB in the beginning and 66.1 MB in the end (delta: 17.3 MB). Free memory was 21.4 MB in the beginning and 43.3 MB in the end (delta: -21.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:53,174 INFO L168 Benchmark]: Witness Printer took 127.71 ms. Allocated memory is still 66.1 MB. Free memory was 42.7 MB in the beginning and 34.7 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:53,177 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 34.1 MB. Free memory was 10.1 MB in the beginning and 10.0 MB in the end (delta: 63.0 kB). Peak memory consumption was 63.0 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 613.49 ms. Allocated memory was 35.7 MB in the beginning and 46.7 MB in the end (delta: 11.0 MB). Free memory was 13.8 MB in the beginning and 28.1 MB in the end (delta: -14.3 MB). Peak memory consumption was 12.8 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 69.91 ms. Allocated memory is still 46.7 MB. Free memory was 28.1 MB in the beginning and 25.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 50.27 ms. Allocated memory is still 46.7 MB. Free memory was 25.0 MB in the beginning and 22.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. * RCFGBuilder took 947.71 ms. Allocated memory was 46.7 MB in the beginning and 48.8 MB in the end (delta: 2.1 MB). Free memory was 22.5 MB in the beginning and 21.8 MB in the end (delta: 764.6 kB). Peak memory consumption was 13.1 MB. Max. memory is 14.3 GB. * TraceAbstraction took 2528.76 ms. Allocated memory was 48.8 MB in the beginning and 66.1 MB in the end (delta: 17.3 MB). Free memory was 21.4 MB in the beginning and 43.3 MB in the end (delta: -21.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 14.3 GB. * Witness Printer took 127.71 ms. Allocated memory is still 66.1 MB. Free memory was 42.7 MB in the beginning and 34.7 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 14.3 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: 1]: Loop Invariant Derived loop invariant: (waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 411]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 188]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 267]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 188]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 188]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 267]: Loop Invariant Derived loop invariant: ((1 == systemActive && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0 - InvariantResult [Line: 422]: Loop Invariant Derived loop invariant: ((1 == systemActive && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) || (((((!(tmp == 0) && !(\result == 0)) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 337]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 275]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 337]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 860]: Loop Invariant Derived loop invariant: (waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 275]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 348]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 337]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 348]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 268]: Loop Invariant Derived loop invariant: ((1 == systemActive && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0 - InvariantResult [Line: 275]: Loop Invariant Derived loop invariant: ((1 == systemActive && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0 - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: (waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 267]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 348]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 220]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 220]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 220]: Loop Invariant Derived loop invariant: (((!(\result == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel - InvariantResult [Line: 122]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 432]: Loop Invariant Derived loop invariant: ((1 == systemActive && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 72 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.9s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 312 SDtfs, 372 SDslu, 288 SDs, 0 SdLazy, 74 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred 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, 81 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 31 LocationsWithAnnotation, 31 PreInvPairs, 47 NumberOfFragments, 168 HoareAnnotationTreeSize, 31 FomulaSimplifications, 318 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 31 FomulaSimplificationsInter, 176 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 173 ConstructedInterpolants, 0 QuantifiedInterpolants, 10339 SizeOfPredicates, 0 NumberOfNonLiveVariables, 378 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...