./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_795f7a09-24a7-4d53-8c06-b44c9619b079/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_795f7a09-24a7-4d53-8c06-b44c9619b079/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_795f7a09-24a7-4d53-8c06-b44c9619b079/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_795f7a09-24a7-4d53-8c06-b44c9619b079/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_795f7a09-24a7-4d53-8c06-b44c9619b079/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_795f7a09-24a7-4d53-8c06-b44c9619b079/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 fda6d17e7962e4df44156ef592d697d85d9dd989 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:10:58,278 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:10:58,280 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:10:58,287 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:10:58,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:10:58,288 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:10:58,289 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:10:58,290 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:10:58,292 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:10:58,292 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:10:58,293 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:10:58,294 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:10:58,294 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:10:58,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:10:58,295 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:10:58,296 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:10:58,297 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:10:58,297 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:10:58,299 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:10:58,300 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:10:58,301 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:10:58,302 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:10:58,303 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:10:58,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:10:58,305 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:10:58,305 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:10:58,305 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:10:58,306 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:10:58,306 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:10:58,307 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:10:58,307 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:10:58,307 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:10:58,308 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:10:58,308 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:10:58,309 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:10:58,309 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:10:58,309 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:10:58,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:10:58,310 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:10:58,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:10:58,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:10:58,311 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_795f7a09-24a7-4d53-8c06-b44c9619b079/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 18:10:58,320 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:10:58,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:10:58,321 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:10:58,321 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:10:58,321 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:10:58,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:10:58,321 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:10:58,322 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:10:58,322 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:10:58,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:10:58,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:10:58,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:10:58,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:10:58,322 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:10:58,322 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:10:58,323 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:10:58,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:10:58,323 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:10:58,323 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:10:58,323 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:10:58,323 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:10:58,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:10:58,323 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:10:58,324 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:10:58,324 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:10:58,324 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:10:58,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 18:10:58,324 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:10:58,324 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:10:58,324 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_795f7a09-24a7-4d53-8c06-b44c9619b079/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 -> fda6d17e7962e4df44156ef592d697d85d9dd989 [2019-12-07 18:10:58,426 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:10:58,436 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:10:58,439 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:10:58,440 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:10:58,440 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:10:58,441 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_795f7a09-24a7-4d53-8c06-b44c9619b079/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c [2019-12-07 18:10:58,490 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_795f7a09-24a7-4d53-8c06-b44c9619b079/bin/uautomizer/data/51942ee0b/50ce625a004244e6b62c694927040ae3/FLAGa396a3656 [2019-12-07 18:10:58,947 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:10:58,947 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_795f7a09-24a7-4d53-8c06-b44c9619b079/sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c [2019-12-07 18:10:58,955 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_795f7a09-24a7-4d53-8c06-b44c9619b079/bin/uautomizer/data/51942ee0b/50ce625a004244e6b62c694927040ae3/FLAGa396a3656 [2019-12-07 18:10:59,266 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_795f7a09-24a7-4d53-8c06-b44c9619b079/bin/uautomizer/data/51942ee0b/50ce625a004244e6b62c694927040ae3 [2019-12-07 18:10:59,269 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:10:59,270 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:10:59,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:10:59,271 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:10:59,274 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:10:59,275 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:10:59" (1/1) ... [2019-12-07 18:10:59,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d7b3d16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:59, skipping insertion in model container [2019-12-07 18:10:59,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:10:59" (1/1) ... [2019-12-07 18:10:59,283 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:10:59,314 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:10:59,553 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:10:59,563 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:10:59,624 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:10:59,646 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:10:59,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:59 WrapperNode [2019-12-07 18:10:59,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:10:59,647 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:10:59,647 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:10:59,648 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:10:59,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:59" (1/1) ... [2019-12-07 18:10:59,665 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:59" (1/1) ... [2019-12-07 18:10:59,694 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:10:59,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:10:59,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:10:59,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:10:59,701 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:59" (1/1) ... [2019-12-07 18:10:59,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:59" (1/1) ... [2019-12-07 18:10:59,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:59" (1/1) ... [2019-12-07 18:10:59,705 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:59" (1/1) ... [2019-12-07 18:10:59,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:59" (1/1) ... [2019-12-07 18:10:59,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:59" (1/1) ... [2019-12-07 18:10:59,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:59" (1/1) ... [2019-12-07 18:10:59,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:10:59,727 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:10:59,727 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:10:59,727 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:10:59,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_795f7a09-24a7-4d53-8c06-b44c9619b079/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 [2019-12-07 18:10:59,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:10:59,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 18:10:59,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:10:59,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:11:00,199 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:11:00,199 INFO L287 CfgBuilder]: Removed 166 assume(true) statements. [2019-12-07 18:11:00,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:11:00 BoogieIcfgContainer [2019-12-07 18:11:00,200 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:11:00,201 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:11:00,201 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:11:00,203 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:11:00,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:10:59" (1/3) ... [2019-12-07 18:11:00,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fe89b86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:11:00, skipping insertion in model container [2019-12-07 18:11:00,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:59" (2/3) ... [2019-12-07 18:11:00,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fe89b86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:11:00, skipping insertion in model container [2019-12-07 18:11:00,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:11:00" (3/3) ... [2019-12-07 18:11:00,205 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product39.cil.c [2019-12-07 18:11:00,212 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:11:00,217 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 18:11:00,224 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 18:11:00,241 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:11:00,241 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:11:00,241 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:11:00,241 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:11:00,241 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:11:00,241 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:11:00,241 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:11:00,241 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:11:00,254 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states. [2019-12-07 18:11:00,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 18:11:00,259 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:11:00,260 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:11:00,260 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:11:00,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:11:00,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1240734729, now seen corresponding path program 1 times [2019-12-07 18:11:00,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:11:00,270 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996688129] [2019-12-07 18:11:00,270 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:11:00,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:11:00,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:11:00,424 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996688129] [2019-12-07 18:11:00,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:11:00,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:11:00,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199844065] [2019-12-07 18:11:00,428 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 18:11:00,428 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:11:00,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 18:11:00,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:11:00,438 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 2 states. [2019-12-07 18:11:00,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:11:00,459 INFO L93 Difference]: Finished difference Result 232 states and 353 transitions. [2019-12-07 18:11:00,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 18:11:00,460 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 18:11:00,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:11:00,468 INFO L225 Difference]: With dead ends: 232 [2019-12-07 18:11:00,468 INFO L226 Difference]: Without dead ends: 115 [2019-12-07 18:11:00,470 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 [2019-12-07 18:11:00,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-12-07 18:11:00,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2019-12-07 18:11:00,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-12-07 18:11:00,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 168 transitions. [2019-12-07 18:11:00,500 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 168 transitions. Word has length 18 [2019-12-07 18:11:00,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:11:00,501 INFO L462 AbstractCegarLoop]: Abstraction has 115 states and 168 transitions. [2019-12-07 18:11:00,501 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 18:11:00,501 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 168 transitions. [2019-12-07 18:11:00,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 18:11:00,502 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:11:00,502 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:11:00,502 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:11:00,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:11:00,502 INFO L82 PathProgramCache]: Analyzing trace with hash 1444708423, now seen corresponding path program 1 times [2019-12-07 18:11:00,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:11:00,503 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033858317] [2019-12-07 18:11:00,503 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:11:00,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:11:00,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:11:00,563 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033858317] [2019-12-07 18:11:00,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:11:00,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:11:00,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25006921] [2019-12-07 18:11:00,564 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:11:00,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:11:00,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:11:00,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:11:00,565 INFO L87 Difference]: Start difference. First operand 115 states and 168 transitions. Second operand 3 states. [2019-12-07 18:11:00,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:11:00,573 INFO L93 Difference]: Finished difference Result 115 states and 168 transitions. [2019-12-07 18:11:00,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:11:00,573 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-12-07 18:11:00,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:11:00,574 INFO L225 Difference]: With dead ends: 115 [2019-12-07 18:11:00,574 INFO L226 Difference]: Without dead ends: 49 [2019-12-07 18:11:00,575 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 [2019-12-07 18:11:00,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-12-07 18:11:00,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2019-12-07 18:11:00,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-12-07 18:11:00,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2019-12-07 18:11:00,579 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 19 [2019-12-07 18:11:00,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:11:00,580 INFO L462 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2019-12-07 18:11:00,580 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:11:00,580 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2019-12-07 18:11:00,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 18:11:00,580 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:11:00,581 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, 1] [2019-12-07 18:11:00,581 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:11:00,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:11:00,581 INFO L82 PathProgramCache]: Analyzing trace with hash 1084287686, now seen corresponding path program 1 times [2019-12-07 18:11:00,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:11:00,581 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604886529] [2019-12-07 18:11:00,581 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:11:00,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:11:00,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:11:00,630 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604886529] [2019-12-07 18:11:00,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:11:00,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:11:00,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424770530] [2019-12-07 18:11:00,631 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:11:00,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:11:00,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:11:00,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:11:00,631 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand 3 states. [2019-12-07 18:11:00,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:11:00,645 INFO L93 Difference]: Finished difference Result 135 states and 201 transitions. [2019-12-07 18:11:00,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:11:00,646 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-12-07 18:11:00,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:11:00,647 INFO L225 Difference]: With dead ends: 135 [2019-12-07 18:11:00,647 INFO L226 Difference]: Without dead ends: 92 [2019-12-07 18:11:00,647 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 [2019-12-07 18:11:00,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-12-07 18:11:00,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 88. [2019-12-07 18:11:00,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-12-07 18:11:00,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 131 transitions. [2019-12-07 18:11:00,655 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 131 transitions. Word has length 24 [2019-12-07 18:11:00,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:11:00,656 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 131 transitions. [2019-12-07 18:11:00,656 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:11:00,656 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 131 transitions. [2019-12-07 18:11:00,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-07 18:11:00,657 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:11:00,657 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, 1, 1, 1] [2019-12-07 18:11:00,657 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:11:00,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:11:00,657 INFO L82 PathProgramCache]: Analyzing trace with hash -857120593, now seen corresponding path program 1 times [2019-12-07 18:11:00,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:11:00,657 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537371237] [2019-12-07 18:11:00,657 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:11:00,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:11:00,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:11:00,692 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537371237] [2019-12-07 18:11:00,692 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:11:00,692 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:11:00,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658412603] [2019-12-07 18:11:00,693 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:11:00,693 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:11:00,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:11:00,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:11:00,693 INFO L87 Difference]: Start difference. First operand 88 states and 131 transitions. Second operand 3 states. [2019-12-07 18:11:00,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:11:00,721 INFO L93 Difference]: Finished difference Result 215 states and 324 transitions. [2019-12-07 18:11:00,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:11:00,721 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-12-07 18:11:00,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:11:00,722 INFO L225 Difference]: With dead ends: 215 [2019-12-07 18:11:00,722 INFO L226 Difference]: Without dead ends: 133 [2019-12-07 18:11:00,723 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 [2019-12-07 18:11:00,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2019-12-07 18:11:00,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 131. [2019-12-07 18:11:00,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2019-12-07 18:11:00,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 191 transitions. [2019-12-07 18:11:00,732 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 191 transitions. Word has length 26 [2019-12-07 18:11:00,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:11:00,732 INFO L462 AbstractCegarLoop]: Abstraction has 131 states and 191 transitions. [2019-12-07 18:11:00,732 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:11:00,732 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 191 transitions. [2019-12-07 18:11:00,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 18:11:00,733 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:11:00,733 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, 1, 1, 1, 1] [2019-12-07 18:11:00,733 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:11:00,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:11:00,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1307189925, now seen corresponding path program 1 times [2019-12-07 18:11:00,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:11:00,734 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102329812] [2019-12-07 18:11:00,734 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:11:00,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:11:00,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:11:00,773 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102329812] [2019-12-07 18:11:00,773 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:11:00,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 18:11:00,774 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495966612] [2019-12-07 18:11:00,774 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 18:11:00,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:11:00,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:11:00,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:11:00,775 INFO L87 Difference]: Start difference. First operand 131 states and 191 transitions. Second operand 5 states. [2019-12-07 18:11:00,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:11:00,874 INFO L93 Difference]: Finished difference Result 691 states and 1025 transitions. [2019-12-07 18:11:00,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 18:11:00,875 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-12-07 18:11:00,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:11:00,878 INFO L225 Difference]: With dead ends: 691 [2019-12-07 18:11:00,879 INFO L226 Difference]: Without dead ends: 566 [2019-12-07 18:11:00,880 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-07 18:11:00,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2019-12-07 18:11:00,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 222. [2019-12-07 18:11:00,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2019-12-07 18:11:00,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 314 transitions. [2019-12-07 18:11:00,906 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 314 transitions. Word has length 27 [2019-12-07 18:11:00,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:11:00,906 INFO L462 AbstractCegarLoop]: Abstraction has 222 states and 314 transitions. [2019-12-07 18:11:00,907 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 18:11:00,907 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 314 transitions. [2019-12-07 18:11:00,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-07 18:11:00,908 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:11:00,908 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, 1, 1, 1, 1, 1] [2019-12-07 18:11:00,909 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:11:00,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:11:00,909 INFO L82 PathProgramCache]: Analyzing trace with hash 1287513629, now seen corresponding path program 1 times [2019-12-07 18:11:00,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:11:00,910 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714677715] [2019-12-07 18:11:00,910 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:11:00,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:11:01,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:11:01,038 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:11:01,038 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 18:11:01,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:11:01 BoogieIcfgContainer [2019-12-07 18:11:01,098 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:11:01,098 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:11:01,098 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:11:01,099 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:11:01,099 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:11:00" (3/4) ... [2019-12-07 18:11:01,101 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 18:11:01,161 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_795f7a09-24a7-4d53-8c06-b44c9619b079/bin/uautomizer/witness.graphml [2019-12-07 18:11:01,161 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:11:01,163 INFO L168 Benchmark]: Toolchain (without parser) took 1892.69 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.2 MB). Free memory was 934.0 MB in the beginning and 852.1 MB in the end (delta: 81.9 MB). Peak memory consumption was 173.1 MB. Max. memory is 11.5 GB. [2019-12-07 18:11:01,164 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:11:01,164 INFO L168 Benchmark]: CACSL2BoogieTranslator took 376.03 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.2 MB). Free memory was 934.0 MB in the beginning and 1.1 GB in the end (delta: -134.6 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-12-07 18:11:01,165 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.16 ms. Allocated memory is still 1.1 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. [2019-12-07 18:11:01,165 INFO L168 Benchmark]: Boogie Preprocessor took 31.59 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:11:01,165 INFO L168 Benchmark]: RCFGBuilder took 473.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 991.7 MB in the end (delta: 71.6 MB). Peak memory consumption was 71.6 MB. Max. memory is 11.5 GB. [2019-12-07 18:11:01,166 INFO L168 Benchmark]: TraceAbstraction took 897.41 ms. Allocated memory is still 1.1 GB. Free memory was 991.7 MB in the beginning and 868.2 MB in the end (delta: 123.5 MB). Peak memory consumption was 123.5 MB. Max. memory is 11.5 GB. [2019-12-07 18:11:01,166 INFO L168 Benchmark]: Witness Printer took 63.12 ms. Allocated memory is still 1.1 GB. Free memory was 868.2 MB in the beginning and 852.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-12-07 18:11:01,168 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 376.03 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.2 MB). Free memory was 934.0 MB in the beginning and 1.1 GB in the end (delta: -134.6 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.16 ms. Allocated memory is still 1.1 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. * Boogie Preprocessor took 31.59 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 473.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 991.7 MB in the end (delta: 71.6 MB). Peak memory consumption was 71.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 897.41 ms. Allocated memory is still 1.1 GB. Free memory was 991.7 MB in the beginning and 868.2 MB in the end (delta: 123.5 MB). Peak memory consumption was 123.5 MB. Max. memory is 11.5 GB. * Witness Printer took 63.12 ms. Allocated memory is still 1.1 GB. Free memory was 868.2 MB in the beginning and 852.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 451]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L85] int waterLevel = 1; [L86] int methaneLevelCritical = 0; [L185] int pumpRunning = 0; [L186] int systemActive = 1; [L625] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L822] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L895] int retValue_acc ; [L896] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L902] tmp = valid_product() [L904] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L381] int splverifierCounter ; [L382] int tmp ; [L383] int tmp___0 ; [L384] int tmp___1 ; [L385] int tmp___2 ; [L388] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L390] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L392] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L398] tmp = __VERIFIER_nondet_int() [L400] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L103] COND TRUE waterLevel < 2 [L104] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L408] tmp___0 = __VERIFIER_nondet_int() [L410] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L418] tmp___2 = __VERIFIER_nondet_int() [L420] COND FALSE !(\read(tmp___2)) [L424] tmp___1 = __VERIFIER_nondet_int() [L426] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L367] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L374] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L193] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L200] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L919] int tmp ; [L920] int tmp___0 ; [L921] int tmp___1 ; [L124] int retValue_acc ; [L127] retValue_acc = methaneLevelCritical [L128] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L925] tmp = isMethaneLevelCritical() [L927] COND FALSE !(\read(tmp)) [L156] int retValue_acc ; [L159] retValue_acc = waterLevel [L160] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L931] tmp___0 = getWaterLevel() [L933] COND TRUE tmp___0 == 2 [L300] int retValue_acc ; [L303] retValue_acc = pumpRunning [L304] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L935] tmp___1 = isPumpRunning() [L937] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L451] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 119 locations, 3 error locations. Result: UNSAFE, OverallTime: 0.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 495 SDtfs, 433 SDslu, 383 SDs, 0 SdLazy, 63 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=222occurred in iteration=5, 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, 350 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 5251 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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 incorrect! Received shutdown request...