./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product10.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d3bf42d1-63ee-4faa-bcba-8ef81e233434/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d3bf42d1-63ee-4faa-bcba-8ef81e233434/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d3bf42d1-63ee-4faa-bcba-8ef81e233434/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d3bf42d1-63ee-4faa-bcba-8ef81e233434/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product10.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d3bf42d1-63ee-4faa-bcba-8ef81e233434/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d3bf42d1-63ee-4faa-bcba-8ef81e233434/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eac2167e56762050a6cde7d8ccfbf36c5d226056 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 04:58:47,438 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 04:58:47,440 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 04:58:47,460 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 04:58:47,460 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 04:58:47,462 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 04:58:47,464 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 04:58:47,475 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 04:58:47,481 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 04:58:47,482 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 04:58:47,483 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 04:58:47,484 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 04:58:47,484 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 04:58:47,485 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 04:58:47,487 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 04:58:47,488 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 04:58:47,489 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 04:58:47,490 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 04:58:47,495 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 04:58:47,500 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 04:58:47,505 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 04:58:47,509 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 04:58:47,512 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 04:58:47,513 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 04:58:47,517 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 04:58:47,518 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 04:58:47,518 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 04:58:47,520 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 04:58:47,520 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 04:58:47,521 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 04:58:47,521 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 04:58:47,522 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 04:58:47,523 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 04:58:47,524 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 04:58:47,525 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 04:58:47,525 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 04:58:47,526 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 04:58:47,526 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 04:58:47,526 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 04:58:47,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 04:58:47,529 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 04:58:47,529 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d3bf42d1-63ee-4faa-bcba-8ef81e233434/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 04:58:47,559 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 04:58:47,560 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 04:58:47,561 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 04:58:47,561 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 04:58:47,561 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 04:58:47,562 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 04:58:47,562 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 04:58:47,562 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 04:58:47,562 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 04:58:47,562 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 04:58:47,563 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 04:58:47,563 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 04:58:47,563 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 04:58:47,563 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 04:58:47,564 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 04:58:47,564 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 04:58:47,564 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 04:58:47,564 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 04:58:47,564 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 04:58:47,565 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 04:58:47,565 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 04:58:47,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 04:58:47,565 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 04:58:47,566 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 04:58:47,566 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 04:58:47,566 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 04:58:47,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 04:58:47,566 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 04:58:47,567 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_d3bf42d1-63ee-4faa-bcba-8ef81e233434/bin/uautomizer 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(__VERIFIER_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 -> eac2167e56762050a6cde7d8ccfbf36c5d226056 [2019-11-20 04:58:47,781 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 04:58:47,800 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 04:58:47,803 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 04:58:47,805 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 04:58:47,806 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 04:58:47,807 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d3bf42d1-63ee-4faa-bcba-8ef81e233434/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product10.cil.c [2019-11-20 04:58:47,880 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d3bf42d1-63ee-4faa-bcba-8ef81e233434/bin/uautomizer/data/89dca90b4/691588386fa2469f9b73a3daccf891be/FLAG4efe57115 [2019-11-20 04:58:48,485 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 04:58:48,486 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d3bf42d1-63ee-4faa-bcba-8ef81e233434/sv-benchmarks/c/product-lines/minepump_spec4_product10.cil.c [2019-11-20 04:58:48,499 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d3bf42d1-63ee-4faa-bcba-8ef81e233434/bin/uautomizer/data/89dca90b4/691588386fa2469f9b73a3daccf891be/FLAG4efe57115 [2019-11-20 04:58:48,794 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d3bf42d1-63ee-4faa-bcba-8ef81e233434/bin/uautomizer/data/89dca90b4/691588386fa2469f9b73a3daccf891be [2019-11-20 04:58:48,797 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 04:58:48,798 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 04:58:48,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 04:58:48,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 04:58:48,804 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 04:58:48,805 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:58:48" (1/1) ... [2019-11-20 04:58:48,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@298b7d74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:58:48, skipping insertion in model container [2019-11-20 04:58:48,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:58:48" (1/1) ... [2019-11-20 04:58:48,816 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 04:58:48,892 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 04:58:49,412 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:58:49,426 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 04:58:49,511 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:58:49,562 INFO L192 MainTranslator]: Completed translation [2019-11-20 04:58:49,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:58:49 WrapperNode [2019-11-20 04:58:49,563 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 04:58:49,564 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 04:58:49,564 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 04:58:49,564 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 04:58:49,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:58:49" (1/1) ... [2019-11-20 04:58:49,595 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:58:49" (1/1) ... [2019-11-20 04:58:49,637 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 04:58:49,637 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 04:58:49,638 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 04:58:49,638 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 04:58:49,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:58:49" (1/1) ... [2019-11-20 04:58:49,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:58:49" (1/1) ... [2019-11-20 04:58:49,652 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:58:49" (1/1) ... [2019-11-20 04:58:49,652 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:58:49" (1/1) ... [2019-11-20 04:58:49,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:58:49" (1/1) ... [2019-11-20 04:58:49,673 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:58:49" (1/1) ... [2019-11-20 04:58:49,676 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:58:49" (1/1) ... [2019-11-20 04:58:49,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 04:58:49,681 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 04:58:49,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 04:58:49,682 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 04:58:49,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:58:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3bf42d1-63ee-4faa-bcba-8ef81e233434/bin/uautomizer/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 [2019-11-20 04:58:49,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 04:58:49,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-20 04:58:49,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 04:58:49,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 04:58:50,490 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 04:58:50,490 INFO L285 CfgBuilder]: Removed 68 assume(true) statements. [2019-11-20 04:58:50,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:58:50 BoogieIcfgContainer [2019-11-20 04:58:50,492 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 04:58:50,493 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 04:58:50,493 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 04:58:50,496 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 04:58:50,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 04:58:48" (1/3) ... [2019-11-20 04:58:50,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a40e2be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:58:50, skipping insertion in model container [2019-11-20 04:58:50,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:58:49" (2/3) ... [2019-11-20 04:58:50,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a40e2be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:58:50, skipping insertion in model container [2019-11-20 04:58:50,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:58:50" (3/3) ... [2019-11-20 04:58:50,502 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product10.cil.c [2019-11-20 04:58:50,513 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 04:58:50,520 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-20 04:58:50,533 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-20 04:58:50,560 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 04:58:50,560 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 04:58:50,560 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 04:58:50,561 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 04:58:50,561 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 04:58:50,561 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 04:58:50,561 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 04:58:50,561 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 04:58:50,580 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states. [2019-11-20 04:58:50,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 04:58:50,586 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:58:50,586 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:58:50,587 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:58:50,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:58:50,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1537784819, now seen corresponding path program 1 times [2019-11-20 04:58:50,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:58:50,601 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984853936] [2019-11-20 04:58:50,601 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:58:50,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:58:50,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:58:50,818 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984853936] [2019-11-20 04:58:50,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:58:50,819 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 04:58:50,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783758942] [2019-11-20 04:58:50,824 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 04:58:50,824 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:58:50,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 04:58:50,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 04:58:50,839 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 2 states. [2019-11-20 04:58:50,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:58:50,861 INFO L93 Difference]: Finished difference Result 108 states and 161 transitions. [2019-11-20 04:58:50,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 04:58:50,862 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-11-20 04:58:50,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:58:50,872 INFO L225 Difference]: With dead ends: 108 [2019-11-20 04:58:50,872 INFO L226 Difference]: Without dead ends: 53 [2019-11-20 04:58:50,876 INFO L630 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 [2019-11-20 04:58:50,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-11-20 04:58:50,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2019-11-20 04:58:50,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-11-20 04:58:50,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 72 transitions. [2019-11-20 04:58:50,916 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 72 transitions. Word has length 16 [2019-11-20 04:58:50,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:58:50,917 INFO L462 AbstractCegarLoop]: Abstraction has 53 states and 72 transitions. [2019-11-20 04:58:50,917 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 04:58:50,917 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 72 transitions. [2019-11-20 04:58:50,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-20 04:58:50,919 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:58:50,919 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:58:50,920 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:58:50,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:58:50,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1979941713, now seen corresponding path program 1 times [2019-11-20 04:58:50,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:58:50,921 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875662478] [2019-11-20 04:58:50,922 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:58:50,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:58:51,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:58:51,100 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875662478] [2019-11-20 04:58:51,100 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:58:51,100 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 04:58:51,100 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429909872] [2019-11-20 04:58:51,102 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 04:58:51,102 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:58:51,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 04:58:51,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 04:58:51,103 INFO L87 Difference]: Start difference. First operand 53 states and 72 transitions. Second operand 3 states. [2019-11-20 04:58:51,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:58:51,121 INFO L93 Difference]: Finished difference Result 53 states and 72 transitions. [2019-11-20 04:58:51,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 04:58:51,122 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-20 04:58:51,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:58:51,122 INFO L225 Difference]: With dead ends: 53 [2019-11-20 04:58:51,123 INFO L226 Difference]: Without dead ends: 27 [2019-11-20 04:58:51,124 INFO L630 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 [2019-11-20 04:58:51,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-20 04:58:51,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-11-20 04:58:51,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-20 04:58:51,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2019-11-20 04:58:51,129 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 17 [2019-11-20 04:58:51,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:58:51,129 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2019-11-20 04:58:51,129 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 04:58:51,129 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2019-11-20 04:58:51,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 04:58:51,130 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:58:51,130 INFO L410 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] [2019-11-20 04:58:51,130 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:58:51,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:58:51,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1992386864, now seen corresponding path program 1 times [2019-11-20 04:58:51,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:58:51,131 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647767954] [2019-11-20 04:58:51,131 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:58:51,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:58:51,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:58:51,266 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647767954] [2019-11-20 04:58:51,267 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:58:51,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-20 04:58:51,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781026445] [2019-11-20 04:58:51,268 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 04:58:51,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:58:51,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 04:58:51,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-20 04:58:51,269 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand 8 states. [2019-11-20 04:58:51,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:58:51,701 INFO L93 Difference]: Finished difference Result 142 states and 221 transitions. [2019-11-20 04:58:51,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-20 04:58:51,701 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2019-11-20 04:58:51,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:58:51,705 INFO L225 Difference]: With dead ends: 142 [2019-11-20 04:58:51,705 INFO L226 Difference]: Without dead ends: 121 [2019-11-20 04:58:51,706 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2019-11-20 04:58:51,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-11-20 04:58:51,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 60. [2019-11-20 04:58:51,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2019-11-20 04:58:51,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 85 transitions. [2019-11-20 04:58:51,730 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 85 transitions. Word has length 22 [2019-11-20 04:58:51,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:58:51,731 INFO L462 AbstractCegarLoop]: Abstraction has 60 states and 85 transitions. [2019-11-20 04:58:51,732 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 04:58:51,733 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 85 transitions. [2019-11-20 04:58:51,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 04:58:51,734 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:58:51,734 INFO L410 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] [2019-11-20 04:58:51,734 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:58:51,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:58:51,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1296861074, now seen corresponding path program 1 times [2019-11-20 04:58:51,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:58:51,735 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564876203] [2019-11-20 04:58:51,735 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:58:51,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:58:51,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:58:51,857 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564876203] [2019-11-20 04:58:51,857 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:58:51,857 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 04:58:51,857 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369964168] [2019-11-20 04:58:51,858 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 04:58:51,858 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:58:51,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 04:58:51,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 04:58:51,859 INFO L87 Difference]: Start difference. First operand 60 states and 85 transitions. Second operand 3 states. [2019-11-20 04:58:51,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:58:51,881 INFO L93 Difference]: Finished difference Result 95 states and 136 transitions. [2019-11-20 04:58:51,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 04:58:51,882 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-11-20 04:58:51,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:58:51,883 INFO L225 Difference]: With dead ends: 95 [2019-11-20 04:58:51,883 INFO L226 Difference]: Without dead ends: 57 [2019-11-20 04:58:51,884 INFO L630 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 [2019-11-20 04:58:51,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-11-20 04:58:51,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2019-11-20 04:58:51,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-11-20 04:58:51,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 77 transitions. [2019-11-20 04:58:51,893 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 77 transitions. Word has length 23 [2019-11-20 04:58:51,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:58:51,894 INFO L462 AbstractCegarLoop]: Abstraction has 57 states and 77 transitions. [2019-11-20 04:58:51,894 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 04:58:51,894 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 77 transitions. [2019-11-20 04:58:51,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-20 04:58:51,896 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:58:51,896 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:58:51,896 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:58:51,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:58:51,897 INFO L82 PathProgramCache]: Analyzing trace with hash -829366222, now seen corresponding path program 1 times [2019-11-20 04:58:51,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:58:51,897 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802870268] [2019-11-20 04:58:51,897 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:58:51,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:58:52,045 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-20 04:58:52,045 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802870268] [2019-11-20 04:58:52,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:58:52,046 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 04:58:52,046 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215643924] [2019-11-20 04:58:52,046 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 04:58:52,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:58:52,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 04:58:52,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 04:58:52,048 INFO L87 Difference]: Start difference. First operand 57 states and 77 transitions. Second operand 5 states. [2019-11-20 04:58:52,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:58:52,119 INFO L93 Difference]: Finished difference Result 111 states and 157 transitions. [2019-11-20 04:58:52,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 04:58:52,120 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2019-11-20 04:58:52,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:58:52,121 INFO L225 Difference]: With dead ends: 111 [2019-11-20 04:58:52,121 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 04:58:52,122 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-20 04:58:52,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 04:58:52,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 04:58:52,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 04:58:52,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 04:58:52,124 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2019-11-20 04:58:52,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:58:52,124 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 04:58:52,124 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 04:58:52,124 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 04:58:52,125 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 04:58:52,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 04:58:52,369 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 439) no Hoare annotation was computed. [2019-11-20 04:58:52,370 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 04:58:52,370 INFO L440 ceAbstractionStarter]: At program point L829(lines 824 832) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 0 ULTIMATE.start_test_~splverifierCounter~0)) [2019-11-20 04:58:52,370 INFO L440 ceAbstractionStarter]: At program point L829-1(lines 824 832) the Hoare annotation is: false [2019-11-20 04:58:52,370 INFO L440 ceAbstractionStarter]: At program point L829-2(lines 824 832) the Hoare annotation is: false [2019-11-20 04:58:52,371 INFO L444 ceAbstractionStarter]: For program point L698(lines 697 744) no Hoare annotation was computed. [2019-11-20 04:58:52,371 INFO L440 ceAbstractionStarter]: At program point L864(lines 859 867) the Hoare annotation is: (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) [2019-11-20 04:58:52,371 INFO L444 ceAbstractionStarter]: For program point L699(lines 699 703) no Hoare annotation was computed. [2019-11-20 04:58:52,371 INFO L444 ceAbstractionStarter]: For program point L55(lines 55 61) no Hoare annotation was computed. [2019-11-20 04:58:52,371 INFO L444 ceAbstractionStarter]: For program point L534(lines 534 541) no Hoare annotation was computed. [2019-11-20 04:58:52,371 INFO L444 ceAbstractionStarter]: For program point L55-2(lines 55 61) no Hoare annotation was computed. [2019-11-20 04:58:52,372 INFO L447 ceAbstractionStarter]: At program point L534-1(lines 534 541) the Hoare annotation is: true [2019-11-20 04:58:52,372 INFO L444 ceAbstractionStarter]: For program point L55-4(lines 55 61) no Hoare annotation was computed. [2019-11-20 04:58:52,372 INFO L440 ceAbstractionStarter]: At program point L568(lines 568 574) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 0 ULTIMATE.start_test_~splverifierCounter~0)) [2019-11-20 04:58:52,372 INFO L440 ceAbstractionStarter]: At program point L568-1(lines 568 574) the Hoare annotation is: false [2019-11-20 04:58:52,372 INFO L440 ceAbstractionStarter]: At program point L568-2(lines 568 574) the Hoare annotation is: false [2019-11-20 04:58:52,373 INFO L444 ceAbstractionStarter]: For program point L717(lines 717 723) no Hoare annotation was computed. [2019-11-20 04:58:52,373 INFO L440 ceAbstractionStarter]: At program point L717-1(lines 717 723) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 0 ULTIMATE.start_test_~splverifierCounter~0)) [2019-11-20 04:58:52,373 INFO L444 ceAbstractionStarter]: For program point L784(lines 784 788) no Hoare annotation was computed. [2019-11-20 04:58:52,373 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 04:58:52,373 INFO L444 ceAbstractionStarter]: For program point L735(lines 735 739) no Hoare annotation was computed. [2019-11-20 04:58:52,373 INFO L440 ceAbstractionStarter]: At program point L735-2(lines 561 567) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 0 ULTIMATE.start_test_~splverifierCounter~0)) [2019-11-20 04:58:52,374 INFO L444 ceAbstractionStarter]: For program point L439(line 439) no Hoare annotation was computed. [2019-11-20 04:58:52,374 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 439) no Hoare annotation was computed. [2019-11-20 04:58:52,374 INFO L444 ceAbstractionStarter]: For program point L439-1(line 439) no Hoare annotation was computed. [2019-11-20 04:58:52,374 INFO L444 ceAbstractionStarter]: For program point L439-2(line 439) no Hoare annotation was computed. [2019-11-20 04:58:52,374 INFO L440 ceAbstractionStarter]: At program point L456-2(lines 456 470) the Hoare annotation is: false [2019-11-20 04:58:52,375 INFO L440 ceAbstractionStarter]: At program point L638(lines 633 641) the Hoare annotation is: (and (= |ULTIMATE.start_isPumpRunning_#res| 0) (= ~pumpRunning~0 0) (= 0 ULTIMATE.start_test_~splverifierCounter~0)) [2019-11-20 04:58:52,375 INFO L440 ceAbstractionStarter]: At program point L638-1(lines 633 641) the Hoare annotation is: false [2019-11-20 04:58:52,375 INFO L440 ceAbstractionStarter]: At program point L638-2(lines 633 641) the Hoare annotation is: false [2019-11-20 04:58:52,375 INFO L444 ceAbstractionStarter]: For program point L457(line 457) no Hoare annotation was computed. [2019-11-20 04:58:52,375 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 04:58:52,375 INFO L440 ceAbstractionStarter]: At program point L507(lines 503 509) the Hoare annotation is: (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (= 1 ~waterLevel~0) (= ULTIMATE.start_main_~tmp~4 ~waterLevel~0) (= ~pumpRunning~0 0)) [2019-11-20 04:58:52,376 INFO L444 ceAbstractionStarter]: For program point L772(lines 772 776) no Hoare annotation was computed. [2019-11-20 04:58:52,376 INFO L444 ceAbstractionStarter]: For program point L707(lines 707 713) no Hoare annotation was computed. [2019-11-20 04:58:52,376 INFO L440 ceAbstractionStarter]: At program point L707-1(lines 707 713) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 0 ULTIMATE.start_test_~splverifierCounter~0)) [2019-11-20 04:58:52,376 INFO L440 ceAbstractionStarter]: At program point L856(lines 1 867) the Hoare annotation is: (and (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) [2019-11-20 04:58:52,376 INFO L444 ceAbstractionStarter]: For program point L460(lines 460 464) no Hoare annotation was computed. [2019-11-20 04:58:52,377 INFO L444 ceAbstractionStarter]: For program point L460-1(lines 561 567) no Hoare annotation was computed. [2019-11-20 04:58:52,377 INFO L447 ceAbstractionStarter]: At program point L543(lines 524 546) the Hoare annotation is: true [2019-11-20 04:58:52,377 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 04:58:52,377 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 439) no Hoare annotation was computed. [2019-11-20 04:58:52,377 INFO L440 ceAbstractionStarter]: At program point L561(lines 560 579) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 0 ULTIMATE.start_test_~splverifierCounter~0)) [2019-11-20 04:58:52,377 INFO L444 ceAbstractionStarter]: For program point L561-1(lines 561 567) no Hoare annotation was computed. [2019-11-20 04:58:52,378 INFO L440 ceAbstractionStarter]: At program point L561-2(lines 560 579) the Hoare annotation is: false [2019-11-20 04:58:52,378 INFO L440 ceAbstractionStarter]: At program point L561-3(lines 560 579) the Hoare annotation is: false [2019-11-20 04:58:52,378 INFO L444 ceAbstractionStarter]: For program point L760(lines 760 764) no Hoare annotation was computed. [2019-11-20 04:58:52,378 INFO L444 ceAbstractionStarter]: For program point L727(lines 727 740) no Hoare annotation was computed. [2019-11-20 04:58:52,378 INFO L444 ceAbstractionStarter]: For program point L760-3(lines 760 764) no Hoare annotation was computed. [2019-11-20 04:58:52,378 INFO L444 ceAbstractionStarter]: For program point L760-6(lines 760 764) no Hoare annotation was computed. [2019-11-20 04:58:52,378 INFO L444 ceAbstractionStarter]: For program point L51(lines 51 64) no Hoare annotation was computed. [2019-11-20 04:58:52,379 INFO L440 ceAbstractionStarter]: At program point L51-1(lines 1 867) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 0 ULTIMATE.start_test_~splverifierCounter~0)) [2019-11-20 04:58:52,379 INFO L444 ceAbstractionStarter]: For program point L51-2(lines 51 64) no Hoare annotation was computed. [2019-11-20 04:58:52,379 INFO L440 ceAbstractionStarter]: At program point L51-3(lines 1 867) the Hoare annotation is: false [2019-11-20 04:58:52,379 INFO L444 ceAbstractionStarter]: For program point L51-4(lines 51 64) no Hoare annotation was computed. [2019-11-20 04:58:52,379 INFO L440 ceAbstractionStarter]: At program point L51-5(lines 1 867) the Hoare annotation is: false [2019-11-20 04:58:52,379 INFO L440 ceAbstractionStarter]: At program point L745(lines 696 746) the Hoare annotation is: false [2019-11-20 04:58:52,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 04:58:52 BoogieIcfgContainer [2019-11-20 04:58:52,397 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 04:58:52,397 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 04:58:52,397 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 04:58:52,397 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 04:58:52,398 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:58:50" (3/4) ... [2019-11-20 04:58:52,401 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 04:58:52,417 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2019-11-20 04:58:52,418 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2019-11-20 04:58:52,418 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-11-20 04:58:52,419 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-20 04:58:52,420 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 04:58:52,420 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 04:58:52,465 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == waterLevel && 1 == waterLevel) && pumpRunning == 0 [2019-11-20 04:58:52,466 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == waterLevel && 1 == waterLevel) && tmp == waterLevel) && pumpRunning == 0 [2019-11-20 04:58:52,469 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == 0 && pumpRunning == 0) && 0 == splverifierCounter [2019-11-20 04:58:52,512 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d3bf42d1-63ee-4faa-bcba-8ef81e233434/bin/uautomizer/witness.graphml [2019-11-20 04:58:52,512 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 04:58:52,514 INFO L168 Benchmark]: Toolchain (without parser) took 3715.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 951.4 MB in the beginning and 916.6 MB in the end (delta: 34.9 MB). Peak memory consumption was 163.8 MB. Max. memory is 11.5 GB. [2019-11-20 04:58:52,515 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:58:52,515 INFO L168 Benchmark]: CACSL2BoogieTranslator took 763.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -165.7 MB). Peak memory consumption was 19.0 MB. Max. memory is 11.5 GB. [2019-11-20 04:58:52,516 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.30 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:58:52,516 INFO L168 Benchmark]: Boogie Preprocessor took 43.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 04:58:52,517 INFO L168 Benchmark]: RCFGBuilder took 810.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 54.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 11.5 GB. [2019-11-20 04:58:52,517 INFO L168 Benchmark]: TraceAbstraction took 1903.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 921.9 MB in the end (delta: 129.8 MB). Peak memory consumption was 129.8 MB. Max. memory is 11.5 GB. [2019-11-20 04:58:52,517 INFO L168 Benchmark]: Witness Printer took 115.54 ms. Allocated memory is still 1.2 GB. Free memory was 921.9 MB in the beginning and 916.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 04:58:52,520 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 763.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -165.7 MB). Peak memory consumption was 19.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 73.30 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 43.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 810.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 54.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1903.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 921.9 MB in the end (delta: 129.8 MB). Peak memory consumption was 129.8 MB. Max. memory is 11.5 GB. * Witness Printer took 115.54 ms. Allocated memory is still 1.2 GB. Free memory was 921.9 MB in the beginning and 916.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 439]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 439]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 439]: 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: 560]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 568]: Loop Invariant Derived loop invariant: pumpRunning == 0 && 0 == splverifierCounter - InvariantResult [Line: 707]: Loop Invariant Derived loop invariant: pumpRunning == 0 && 0 == splverifierCounter - InvariantResult [Line: 568]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: pumpRunning == 0 && 0 == splverifierCounter - InvariantResult [Line: 568]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 859]: Loop Invariant Derived loop invariant: (\result == waterLevel && 1 == waterLevel) && pumpRunning == 0 - InvariantResult [Line: 633]: Loop Invariant Derived loop invariant: (\result == 0 && pumpRunning == 0) && 0 == splverifierCounter - InvariantResult [Line: 633]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 561]: Loop Invariant Derived loop invariant: pumpRunning == 0 && 0 == splverifierCounter - InvariantResult [Line: 633]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 560]: Loop Invariant Derived loop invariant: pumpRunning == 0 && 0 == splverifierCounter - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 560]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 1 == waterLevel && pumpRunning == 0 - InvariantResult [Line: 717]: Loop Invariant Derived loop invariant: pumpRunning == 0 && 0 == splverifierCounter - InvariantResult [Line: 534]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 524]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 696]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 824]: Loop Invariant Derived loop invariant: pumpRunning == 0 && 0 == splverifierCounter - InvariantResult [Line: 824]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 456]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 503]: Loop Invariant Derived loop invariant: ((\result == waterLevel && 1 == waterLevel) && tmp == waterLevel) && pumpRunning == 0 - InvariantResult [Line: 824]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 57 locations, 3 error locations. Result: SAFE, OverallTime: 1.8s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 242 SDtfs, 346 SDslu, 331 SDs, 0 SdLazy, 91 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=3, 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, 5 MinimizatonAttempts, 61 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 25 LocationsWithAnnotation, 25 PreInvPairs, 74 NumberOfFragments, 103 HoareAnnotationTreeSize, 25 FomulaSimplifications, 1485 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 25 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 115 NumberOfCodeBlocks, 115 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 6952 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 14/14 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...