./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product26.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_product26.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 7b0c3f3646e33973a6d7bd1caf1826f109e77f0e ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 01:44:01,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:44:01,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:44:01,420 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:44:01,421 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:44:01,430 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:44:01,432 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:44:01,436 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:44:01,446 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:44:01,449 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:44:01,451 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:44:01,452 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:44:01,452 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:44:01,455 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:44:01,457 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:44:01,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:44:01,460 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:44:01,461 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:44:01,463 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:44:01,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:44:01,474 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:44:01,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:44:01,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:44:01,478 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:44:01,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:44:01,495 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:44:01,495 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:44:01,496 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:44:01,497 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:44:01,498 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:44:01,498 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:44:01,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:44:01,503 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:44:01,503 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:44:01,506 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:44:01,506 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:44:01,507 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:44:01,507 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:44:01,508 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:44:01,508 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:44:01,511 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:44:01,512 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:44:01,551 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:44:01,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:44:01,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:44:01,553 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:44:01,554 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:44:01,554 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:44:01,554 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:44:01,554 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:44:01,555 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:44:01,555 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:44:01,555 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:44:01,555 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:44:01,556 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:44:01,556 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:44:01,556 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:44:01,556 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:44:01,556 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:44:01,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:44:01,557 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:44:01,557 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:44:01,558 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:44:01,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:44:01,558 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:44:01,558 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:44:01,559 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:44:01,559 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:44:01,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:44:01,559 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:44:01,560 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:44:01,560 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 -> 7b0c3f3646e33973a6d7bd1caf1826f109e77f0e [2020-10-20 01:44:01,761 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:44:01,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:44:01,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:44:01,793 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:44:01,796 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:44:01,796 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product26.cil.c [2020-10-20 01:44:01,856 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5b79608e/0dc77b76b28c47c884fcf74554dd4865/FLAGcc1daa8c8 [2020-10-20 01:44:02,430 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:44:02,431 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product26.cil.c [2020-10-20 01:44:02,444 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5b79608e/0dc77b76b28c47c884fcf74554dd4865/FLAGcc1daa8c8 [2020-10-20 01:44:02,692 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5b79608e/0dc77b76b28c47c884fcf74554dd4865 [2020-10-20 01:44:02,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:44:02,703 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:44:02,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:44:02,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:44:02,708 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:44:02,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:44:02" (1/1) ... [2020-10-20 01:44:02,712 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e037be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:02, skipping insertion in model container [2020-10-20 01:44:02,713 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:44:02" (1/1) ... [2020-10-20 01:44:02,721 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:44:02,794 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:44:03,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:44:03,180 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:44:03,295 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:44:03,340 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:44:03,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:03 WrapperNode [2020-10-20 01:44:03,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:44:03,342 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:44:03,342 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:44:03,342 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:44:03,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:03" (1/1) ... [2020-10-20 01:44:03,369 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:03" (1/1) ... [2020-10-20 01:44:03,410 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:44:03,411 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:44:03,411 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:44:03,411 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:44:03,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:03" (1/1) ... [2020-10-20 01:44:03,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:03" (1/1) ... [2020-10-20 01:44:03,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:03" (1/1) ... [2020-10-20 01:44:03,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:03" (1/1) ... [2020-10-20 01:44:03,437 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:03" (1/1) ... [2020-10-20 01:44:03,444 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:03" (1/1) ... [2020-10-20 01:44:03,447 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:03" (1/1) ... [2020-10-20 01:44:03,451 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:44:03,452 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:44:03,452 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:44:03,452 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:44:03,453 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:03" (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 01:44:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:44:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:44:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:44:03,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:44:04,375 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:44:04,375 INFO L298 CfgBuilder]: Removed 104 assume(true) statements. [2020-10-20 01:44:04,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:44:04 BoogieIcfgContainer [2020-10-20 01:44:04,378 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:44:04,379 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:44:04,379 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:44:04,382 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:44:04,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:44:02" (1/3) ... [2020-10-20 01:44:04,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e2d9d88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:44:04, skipping insertion in model container [2020-10-20 01:44:04,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:03" (2/3) ... [2020-10-20 01:44:04,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e2d9d88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:44:04, skipping insertion in model container [2020-10-20 01:44:04,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:44:04" (3/3) ... [2020-10-20 01:44:04,386 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product26.cil.c [2020-10-20 01:44:04,398 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:44:04,404 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-20 01:44:04,414 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-20 01:44:04,436 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:44:04,437 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:44:04,437 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:44:04,437 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:44:04,437 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:44:04,438 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:44:04,438 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:44:04,438 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:44:04,463 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states. [2020-10-20 01:44:04,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-20 01:44:04,470 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:04,471 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:04,472 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:04,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:04,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1862271915, now seen corresponding path program 1 times [2020-10-20 01:44:04,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:04,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944493900] [2020-10-20 01:44:04,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:04,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:04,741 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 01:44:04,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944493900] [2020-10-20 01:44:04,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:04,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:44:04,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637874971] [2020-10-20 01:44:04,749 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 01:44:04,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:04,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 01:44:04,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:44:04,767 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 2 states. [2020-10-20 01:44:04,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:04,797 INFO L93 Difference]: Finished difference Result 147 states and 218 transitions. [2020-10-20 01:44:04,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 01:44:04,799 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-10-20 01:44:04,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:04,811 INFO L225 Difference]: With dead ends: 147 [2020-10-20 01:44:04,811 INFO L226 Difference]: Without dead ends: 71 [2020-10-20 01:44:04,815 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 01:44:04,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-20 01:44:04,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-10-20 01:44:04,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-20 01:44:04,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 99 transitions. [2020-10-20 01:44:04,858 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 99 transitions. Word has length 16 [2020-10-20 01:44:04,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:04,859 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 99 transitions. [2020-10-20 01:44:04,859 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 01:44:04,859 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 99 transitions. [2020-10-20 01:44:04,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 01:44:04,860 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:04,860 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 01:44:04,861 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:44:04,874 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:04,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:04,875 INFO L82 PathProgramCache]: Analyzing trace with hash 815515018, now seen corresponding path program 1 times [2020-10-20 01:44:04,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:04,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636937228] [2020-10-20 01:44:04,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:04,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:05,053 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 01:44:05,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636937228] [2020-10-20 01:44:05,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:05,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:44:05,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839090381] [2020-10-20 01:44:05,056 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:44:05,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:05,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:44:05,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:44:05,058 INFO L87 Difference]: Start difference. First operand 71 states and 99 transitions. Second operand 3 states. [2020-10-20 01:44:05,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:05,080 INFO L93 Difference]: Finished difference Result 71 states and 99 transitions. [2020-10-20 01:44:05,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:44:05,081 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-20 01:44:05,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:05,081 INFO L225 Difference]: With dead ends: 71 [2020-10-20 01:44:05,081 INFO L226 Difference]: Without dead ends: 33 [2020-10-20 01:44:05,082 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 01:44:05,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-20 01:44:05,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-20 01:44:05,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-20 01:44:05,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 46 transitions. [2020-10-20 01:44:05,090 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 46 transitions. Word has length 17 [2020-10-20 01:44:05,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:05,090 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 46 transitions. [2020-10-20 01:44:05,090 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:44:05,090 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 46 transitions. [2020-10-20 01:44:05,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-20 01:44:05,091 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:05,091 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 01:44:05,091 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:44:05,092 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:05,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:05,092 INFO L82 PathProgramCache]: Analyzing trace with hash -1255414035, now seen corresponding path program 1 times [2020-10-20 01:44:05,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:05,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744412406] [2020-10-20 01:44:05,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:05,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:05,188 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 01:44:05,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744412406] [2020-10-20 01:44:05,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:05,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:44:05,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679936161] [2020-10-20 01:44:05,190 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:44:05,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:05,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:44:05,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:44:05,191 INFO L87 Difference]: Start difference. First operand 33 states and 46 transitions. Second operand 3 states. [2020-10-20 01:44:05,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:05,229 INFO L93 Difference]: Finished difference Result 60 states and 86 transitions. [2020-10-20 01:44:05,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:44:05,231 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-10-20 01:44:05,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:05,232 INFO L225 Difference]: With dead ends: 60 [2020-10-20 01:44:05,232 INFO L226 Difference]: Without dead ends: 33 [2020-10-20 01:44:05,232 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 01:44:05,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-20 01:44:05,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-20 01:44:05,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-20 01:44:05,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 45 transitions. [2020-10-20 01:44:05,238 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 45 transitions. Word has length 22 [2020-10-20 01:44:05,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:05,239 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 45 transitions. [2020-10-20 01:44:05,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:44:05,239 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions. [2020-10-20 01:44:05,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-20 01:44:05,240 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:05,240 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 01:44:05,240 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 01:44:05,241 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:05,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:05,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1242671319, now seen corresponding path program 1 times [2020-10-20 01:44:05,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:05,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477557352] [2020-10-20 01:44:05,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:05,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:05,416 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 01:44:05,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477557352] [2020-10-20 01:44:05,417 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:05,417 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 01:44:05,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014600089] [2020-10-20 01:44:05,418 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 01:44:05,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:05,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 01:44:05,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-20 01:44:05,420 INFO L87 Difference]: Start difference. First operand 33 states and 45 transitions. Second operand 7 states. [2020-10-20 01:44:05,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:05,691 INFO L93 Difference]: Finished difference Result 196 states and 293 transitions. [2020-10-20 01:44:05,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-20 01:44:05,692 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-10-20 01:44:05,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:05,694 INFO L225 Difference]: With dead ends: 196 [2020-10-20 01:44:05,695 INFO L226 Difference]: Without dead ends: 169 [2020-10-20 01:44:05,696 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-20 01:44:05,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-10-20 01:44:05,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 78. [2020-10-20 01:44:05,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-20 01:44:05,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 109 transitions. [2020-10-20 01:44:05,711 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 109 transitions. Word has length 23 [2020-10-20 01:44:05,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:05,712 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 109 transitions. [2020-10-20 01:44:05,712 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 01:44:05,712 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 109 transitions. [2020-10-20 01:44:05,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 01:44:05,714 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:05,714 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 01:44:05,714 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 01:44:05,714 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:05,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:05,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1939766951, now seen corresponding path program 1 times [2020-10-20 01:44:05,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:05,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847652467] [2020-10-20 01:44:05,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:05,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:05,781 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 01:44:05,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847652467] [2020-10-20 01:44:05,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:05,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:44:05,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265296975] [2020-10-20 01:44:05,782 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:44:05,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:05,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:44:05,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:44:05,785 INFO L87 Difference]: Start difference. First operand 78 states and 109 transitions. Second operand 3 states. [2020-10-20 01:44:05,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:05,803 INFO L93 Difference]: Finished difference Result 132 states and 186 transitions. [2020-10-20 01:44:05,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:44:05,804 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-10-20 01:44:05,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:05,805 INFO L225 Difference]: With dead ends: 132 [2020-10-20 01:44:05,805 INFO L226 Difference]: Without dead ends: 60 [2020-10-20 01:44:05,807 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 01:44:05,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-20 01:44:05,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-10-20 01:44:05,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-20 01:44:05,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 77 transitions. [2020-10-20 01:44:05,821 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 77 transitions. Word has length 24 [2020-10-20 01:44:05,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:05,825 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 77 transitions. [2020-10-20 01:44:05,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:44:05,825 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 77 transitions. [2020-10-20 01:44:05,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-20 01:44:05,827 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:05,828 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 01:44:05,828 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 01:44:05,828 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:05,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:05,829 INFO L82 PathProgramCache]: Analyzing trace with hash 561717222, now seen corresponding path program 1 times [2020-10-20 01:44:05,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:05,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018560048] [2020-10-20 01:44:05,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:05,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:05,913 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 01:44:05,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018560048] [2020-10-20 01:44:05,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2010397824] [2020-10-20 01:44:05,914 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 01:44:06,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:06,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 01:44:06,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:44:06,150 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 01:44:06,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-20 01:44:06,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2020-10-20 01:44:06,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078319969] [2020-10-20 01:44:06,180 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:44:06,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:06,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:44:06,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:06,181 INFO L87 Difference]: Start difference. First operand 60 states and 77 transitions. Second operand 4 states. [2020-10-20 01:44:06,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:06,252 INFO L93 Difference]: Finished difference Result 77 states and 100 transitions. [2020-10-20 01:44:06,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 01:44:06,252 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 39 [2020-10-20 01:44:06,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:06,253 INFO L225 Difference]: With dead ends: 77 [2020-10-20 01:44:06,253 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 01:44:06,254 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 01:44:06,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 01:44:06,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 01:44:06,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 01:44:06,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 01:44:06,255 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2020-10-20 01:44:06,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:06,255 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 01:44:06,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:44:06,255 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 01:44:06,256 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 01:44:06,463 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-10-20 01:44:06,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 01:44:07,125 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:44:07,125 INFO L274 CegarLoopResult]: For program point L845(lines 845 849) no Hoare annotation was computed. [2020-10-20 01:44:07,126 INFO L274 CegarLoopResult]: For program point L845-1(lines 139 145) no Hoare annotation was computed. [2020-10-20 01:44:07,126 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-20 01:44:07,126 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-20 01:44:07,126 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-10-20 01:44:07,126 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 01:44:07,127 INFO L274 CegarLoopResult]: For program point L317(lines 317 321) no Hoare annotation was computed. [2020-10-20 01:44:07,127 INFO L274 CegarLoopResult]: For program point L317-3(lines 317 321) no Hoare annotation was computed. [2020-10-20 01:44:07,127 INFO L274 CegarLoopResult]: For program point L317-6(lines 317 321) no Hoare annotation was computed. [2020-10-20 01:44:07,127 INFO L274 CegarLoopResult]: For program point L86(lines 86 92) no Hoare annotation was computed. [2020-10-20 01:44:07,128 INFO L270 CegarLoopResult]: At program point L86-1(lines 86 92) the Hoare annotation is: (and (= 1 ~systemActive~0) (= ~pumpRunning~0 0) (<= 1 ~waterLevel~0) (= ULTIMATE.start_test_~splverifierCounter~0 0)) [2020-10-20 01:44:07,128 INFO L274 CegarLoopResult]: For program point L912(lines 912 919) no Hoare annotation was computed. [2020-10-20 01:44:07,128 INFO L277 CegarLoopResult]: At program point L912-1(lines 912 919) the Hoare annotation is: true [2020-10-20 01:44:07,128 INFO L274 CegarLoopResult]: For program point L104(lines 104 108) no Hoare annotation was computed. [2020-10-20 01:44:07,128 INFO L270 CegarLoopResult]: At program point L104-2(lines 139 145) the Hoare annotation is: (and (= 1 ~systemActive~0) (= ~pumpRunning~0 0) (<= 1 ~waterLevel~0) (= ULTIMATE.start_test_~splverifierCounter~0 0)) [2020-10-20 01:44:07,129 INFO L270 CegarLoopResult]: At program point L451(lines 1 924) the Hoare annotation is: (and (= ~waterLevel~0 ~systemActive~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-10-20 01:44:07,129 INFO L274 CegarLoopResult]: For program point L171(lines 171 188) no Hoare annotation was computed. [2020-10-20 01:44:07,129 INFO L274 CegarLoopResult]: For program point L171-1(lines 171 188) no Hoare annotation was computed. [2020-10-20 01:44:07,129 INFO L274 CegarLoopResult]: For program point L171-2(lines 171 188) no Hoare annotation was computed. [2020-10-20 01:44:07,130 INFO L270 CegarLoopResult]: At program point L386(lines 381 389) 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 01:44:07,130 INFO L270 CegarLoopResult]: At program point L386-1(lines 381 389) the Hoare annotation is: false [2020-10-20 01:44:07,131 INFO L270 CegarLoopResult]: At program point L386-2(lines 381 389) the Hoare annotation is: false [2020-10-20 01:44:07,131 INFO L270 CegarLoopResult]: At program point L139(lines 138 157) the Hoare annotation is: (and (= 1 ~systemActive~0) (= ~pumpRunning~0 0) (<= 1 ~waterLevel~0) (= ULTIMATE.start_test_~splverifierCounter~0 0)) [2020-10-20 01:44:07,131 INFO L274 CegarLoopResult]: For program point L139-1(lines 139 145) no Hoare annotation was computed. [2020-10-20 01:44:07,131 INFO L270 CegarLoopResult]: At program point L139-2(lines 138 157) the Hoare annotation is: false [2020-10-20 01:44:07,132 INFO L270 CegarLoopResult]: At program point L139-3(lines 138 157) the Hoare annotation is: false [2020-10-20 01:44:07,132 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 01:44:07,132 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:44:07,133 INFO L274 CegarLoopResult]: For program point L175(lines 175 183) no Hoare annotation was computed. [2020-10-20 01:44:07,133 INFO L274 CegarLoopResult]: For program point L175-1(lines 175 183) no Hoare annotation was computed. [2020-10-20 01:44:07,133 INFO L274 CegarLoopResult]: For program point L175-2(lines 175 183) no Hoare annotation was computed. [2020-10-20 01:44:07,133 INFO L274 CegarLoopResult]: For program point L76(lines 76 82) no Hoare annotation was computed. [2020-10-20 01:44:07,134 INFO L270 CegarLoopResult]: At program point L76-1(lines 76 82) the Hoare annotation is: (and (= 1 ~systemActive~0) (= ~pumpRunning~0 0) (<= 1 ~waterLevel~0) (= ULTIMATE.start_test_~splverifierCounter~0 0)) [2020-10-20 01:44:07,134 INFO L274 CegarLoopResult]: For program point L291(lines 291 295) no Hoare annotation was computed. [2020-10-20 01:44:07,134 INFO L274 CegarLoopResult]: For program point L291-2(lines 291 295) no Hoare annotation was computed. [2020-10-20 01:44:07,134 INFO L274 CegarLoopResult]: For program point L291-3(lines 291 295) no Hoare annotation was computed. [2020-10-20 01:44:07,134 INFO L274 CegarLoopResult]: For program point L291-5(lines 291 295) no Hoare annotation was computed. [2020-10-20 01:44:07,135 INFO L274 CegarLoopResult]: For program point L291-6(lines 291 295) no Hoare annotation was computed. [2020-10-20 01:44:07,135 INFO L274 CegarLoopResult]: For program point L291-8(lines 291 295) no Hoare annotation was computed. [2020-10-20 01:44:07,135 INFO L274 CegarLoopResult]: For program point L341(lines 341 345) no Hoare annotation was computed. [2020-10-20 01:44:07,135 INFO L270 CegarLoopResult]: At program point L242(lines 237 245) the Hoare annotation is: false [2020-10-20 01:44:07,136 INFO L270 CegarLoopResult]: At program point L242-1(lines 237 245) the Hoare annotation is: false [2020-10-20 01:44:07,136 INFO L270 CegarLoopResult]: At program point L242-2(lines 237 245) the Hoare annotation is: false [2020-10-20 01:44:07,136 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 01:44:07,136 INFO L274 CegarLoopResult]: For program point L408(lines 408 421) no Hoare annotation was computed. [2020-10-20 01:44:07,137 INFO L270 CegarLoopResult]: At program point L408-1(lines 1 924) 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_getWaterLevel_#res| 0)) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~4 0))))) [2020-10-20 01:44:07,137 INFO L274 CegarLoopResult]: For program point L408-2(lines 408 421) no Hoare annotation was computed. [2020-10-20 01:44:07,137 INFO L270 CegarLoopResult]: At program point L408-3(lines 1 924) the Hoare annotation is: false [2020-10-20 01:44:07,137 INFO L274 CegarLoopResult]: For program point L408-4(lines 408 421) no Hoare annotation was computed. [2020-10-20 01:44:07,138 INFO L270 CegarLoopResult]: At program point L408-5(lines 1 924) the Hoare annotation is: false [2020-10-20 01:44:07,138 INFO L277 CegarLoopResult]: At program point L921(lines 902 924) the Hoare annotation is: true [2020-10-20 01:44:07,138 INFO L274 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-10-20 01:44:07,138 INFO L274 CegarLoopResult]: For program point L46-1(line 46) no Hoare annotation was computed. [2020-10-20 01:44:07,138 INFO L274 CegarLoopResult]: For program point L46-2(line 46) no Hoare annotation was computed. [2020-10-20 01:44:07,139 INFO L270 CegarLoopResult]: At program point L459(lines 454 462) the Hoare annotation is: (and (= ~waterLevel~0 ~systemActive~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-10-20 01:44:07,139 INFO L274 CegarLoopResult]: For program point L96(lines 96 109) no Hoare annotation was computed. [2020-10-20 01:44:07,139 INFO L270 CegarLoopResult]: At program point L889(lines 885 891) the Hoare annotation is: (and (= ~waterLevel~0 ~systemActive~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-10-20 01:44:07,139 INFO L270 CegarLoopResult]: At program point L146(lines 146 152) the Hoare annotation is: (and (= 1 ~systemActive~0) (= ~pumpRunning~0 0) (<= 1 ~waterLevel~0) (= ULTIMATE.start_test_~splverifierCounter~0 0)) [2020-10-20 01:44:07,140 INFO L270 CegarLoopResult]: At program point L146-1(lines 146 152) the Hoare annotation is: false [2020-10-20 01:44:07,140 INFO L270 CegarLoopResult]: At program point L146-2(lines 146 152) the Hoare annotation is: false [2020-10-20 01:44:07,140 INFO L270 CegarLoopResult]: At program point L114(lines 65 115) the Hoare annotation is: false [2020-10-20 01:44:07,140 INFO L270 CegarLoopResult]: At program point L395(lines 390 398) the Hoare annotation is: false [2020-10-20 01:44:07,140 INFO L270 CegarLoopResult]: At program point L395-1(lines 390 398) the Hoare annotation is: false [2020-10-20 01:44:07,141 INFO L274 CegarLoopResult]: For program point L329(lines 329 333) no Hoare annotation was computed. [2020-10-20 01:44:07,141 INFO L270 CegarLoopResult]: At program point L395-2(lines 390 398) the Hoare annotation is: false [2020-10-20 01:44:07,141 INFO L270 CegarLoopResult]: At program point L841-2(lines 841 855) the Hoare annotation is: false [2020-10-20 01:44:07,141 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 01:44:07,141 INFO L274 CegarLoopResult]: For program point L412(lines 412 418) no Hoare annotation was computed. [2020-10-20 01:44:07,142 INFO L274 CegarLoopResult]: For program point L412-2(lines 412 418) no Hoare annotation was computed. [2020-10-20 01:44:07,142 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:44:07,142 INFO L274 CegarLoopResult]: For program point L412-4(lines 412 418) no Hoare annotation was computed. [2020-10-20 01:44:07,142 INFO L274 CegarLoopResult]: For program point L842(line 842) no Hoare annotation was computed. [2020-10-20 01:44:07,142 INFO L270 CegarLoopResult]: At program point L297(lines 282 300) the Hoare annotation is: false [2020-10-20 01:44:07,143 INFO L270 CegarLoopResult]: At program point L297-1(lines 282 300) the Hoare annotation is: false [2020-10-20 01:44:07,143 INFO L270 CegarLoopResult]: At program point L297-2(lines 282 300) the Hoare annotation is: false [2020-10-20 01:44:07,143 INFO L274 CegarLoopResult]: For program point L67(lines 66 113) no Hoare annotation was computed. [2020-10-20 01:44:07,143 INFO L274 CegarLoopResult]: For program point L68(lines 68 72) no Hoare annotation was computed. [2020-10-20 01:44:07,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:44:07 BoogieIcfgContainer [2020-10-20 01:44:07,167 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:44:07,168 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:44:07,168 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:44:07,168 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:44:07,169 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:44:04" (3/4) ... [2020-10-20 01:44:07,174 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 01:44:07,191 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-10-20 01:44:07,192 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-10-20 01:44:07,193 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-10-20 01:44:07,194 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-10-20 01:44:07,195 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-20 01:44:07,195 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:44:07,196 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:44:07,232 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) || (((((!(\result == 0) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp == 0)) [2020-10-20 01:44:07,234 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\result == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel [2020-10-20 01:44:07,328 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:44:07,328 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:44:07,331 INFO L168 Benchmark]: Toolchain (without parser) took 4632.04 ms. Allocated memory was 35.1 MB in the beginning and 66.6 MB in the end (delta: 31.5 MB). Free memory was 12.3 MB in the beginning and 29.2 MB in the end (delta: -16.9 MB). Peak memory consumption was 14.6 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:07,331 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 33.6 MB. Free memory was 19.1 MB in the beginning and 19.1 MB in the end (delta: 35.1 kB). Peak memory consumption was 35.1 kB. Max. memory is 14.3 GB. [2020-10-20 01:44:07,332 INFO L168 Benchmark]: CACSL2BoogieTranslator took 637.53 ms. Allocated memory was 35.1 MB in the beginning and 46.1 MB in the end (delta: 11.0 MB). Free memory was 11.4 MB in the beginning and 25.0 MB in the end (delta: -13.6 MB). Peak memory consumption was 11.1 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:07,332 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.16 ms. Allocated memory is still 46.1 MB. Free memory was 25.0 MB in the beginning and 21.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:07,332 INFO L168 Benchmark]: Boogie Preprocessor took 40.76 ms. Allocated memory is still 46.1 MB. Free memory was 21.9 MB in the beginning and 19.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:07,333 INFO L168 Benchmark]: RCFGBuilder took 925.95 ms. Allocated memory was 46.1 MB in the beginning and 48.2 MB in the end (delta: 2.1 MB). Free memory was 19.4 MB in the beginning and 16.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:07,333 INFO L168 Benchmark]: TraceAbstraction took 2788.87 ms. Allocated memory was 48.2 MB in the beginning and 66.6 MB in the end (delta: 18.4 MB). Free memory was 16.1 MB in the beginning and 38.5 MB in the end (delta: -22.4 MB). Peak memory consumption was 22.0 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:07,334 INFO L168 Benchmark]: Witness Printer took 160.46 ms. Allocated memory is still 66.6 MB. Free memory was 38.5 MB in the beginning and 29.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:07,337 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 33.6 MB. Free memory was 19.1 MB in the beginning and 19.1 MB in the end (delta: 35.1 kB). Peak memory consumption was 35.1 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 637.53 ms. Allocated memory was 35.1 MB in the beginning and 46.1 MB in the end (delta: 11.0 MB). Free memory was 11.4 MB in the beginning and 25.0 MB in the end (delta: -13.6 MB). Peak memory consumption was 11.1 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 68.16 ms. Allocated memory is still 46.1 MB. Free memory was 25.0 MB in the beginning and 21.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 40.76 ms. Allocated memory is still 46.1 MB. Free memory was 21.9 MB in the beginning and 19.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.3 GB. * RCFGBuilder took 925.95 ms. Allocated memory was 46.1 MB in the beginning and 48.2 MB in the end (delta: 2.1 MB). Free memory was 19.4 MB in the beginning and 16.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 14.3 GB. * TraceAbstraction took 2788.87 ms. Allocated memory was 48.2 MB in the beginning and 66.6 MB in the end (delta: 18.4 MB). Free memory was 16.1 MB in the beginning and 38.5 MB in the end (delta: -22.4 MB). Peak memory consumption was 22.0 MB. Max. memory is 14.3 GB. * Witness Printer took 160.46 ms. Allocated memory is still 66.6 MB. Free memory was 38.5 MB in the beginning and 29.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 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: 902]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 139]: Loop Invariant Derived loop invariant: ((1 == systemActive && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0 - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: ((1 == systemActive && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 390]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: ((1 == systemActive && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0 - InvariantResult [Line: 841]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 912]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 885]: Loop Invariant Derived loop invariant: (waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 237]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 237]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 381]: Loop Invariant Derived loop invariant: (((!(\result == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) || (((((!(\result == 0) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp == 0)) - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 381]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 237]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 454]: Loop Invariant Derived loop invariant: (waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 390]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 381]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 390]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: ((1 == systemActive && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: ((1 == systemActive && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 78 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.0s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 331 SDtfs, 408 SDslu, 309 SDs, 0 SdLazy, 85 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=78occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 91 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 31 LocationsWithAnnotation, 31 PreInvPairs, 47 NumberOfFragments, 168 HoareAnnotationTreeSize, 31 FomulaSimplifications, 318 FormulaSimplificationTreeSizeReduction, 0.2s 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...