./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_cc634c60-3f99-4a20-9187-64bcbc80d2ea/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cc634c60-3f99-4a20-9187-64bcbc80d2ea/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cc634c60-3f99-4a20-9187-64bcbc80d2ea/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cc634c60-3f99-4a20-9187-64bcbc80d2ea/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_cc634c60-3f99-4a20-9187-64bcbc80d2ea/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cc634c60-3f99-4a20-9187-64bcbc80d2ea/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 cad5f4eca7a20f7ca6dddfa07fda554bac28f7be ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.24-cad4683 [2019-10-22 09:00:47,245 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:00:47,248 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:00:47,257 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:00:47,258 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:00:47,259 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:00:47,260 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:00:47,261 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:00:47,264 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:00:47,264 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:00:47,265 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:00:47,266 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:00:47,266 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:00:47,267 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:00:47,267 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:00:47,268 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:00:47,269 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:00:47,269 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:00:47,278 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:00:47,279 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:00:47,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:00:47,281 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:00:47,281 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:00:47,282 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:00:47,287 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:00:47,288 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:00:47,288 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:00:47,288 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:00:47,289 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:00:47,289 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:00:47,290 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:00:47,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:00:47,292 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:00:47,293 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:00:47,294 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:00:47,294 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:00:47,294 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:00:47,295 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:00:47,295 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:00:47,295 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:00:47,296 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:00:47,296 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cc634c60-3f99-4a20-9187-64bcbc80d2ea/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 09:00:47,308 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:00:47,308 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:00:47,309 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:00:47,309 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:00:47,309 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:00:47,309 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:00:47,310 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:00:47,310 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:00:47,310 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:00:47,310 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:00:47,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:00:47,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:00:47,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:00:47,319 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:00:47,320 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:00:47,320 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:00:47,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:00:47,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:00:47,320 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:00:47,320 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:00:47,321 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:00:47,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:00:47,321 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:00:47,321 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:00:47,321 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:00:47,321 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:00:47,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:00:47,322 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:00:47,322 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/working_dir_cc634c60-3f99-4a20-9187-64bcbc80d2ea/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 -> cad5f4eca7a20f7ca6dddfa07fda554bac28f7be [2019-10-22 09:00:47,356 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:00:47,367 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:00:47,370 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:00:47,372 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:00:47,372 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:00:47,373 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cc634c60-3f99-4a20-9187-64bcbc80d2ea/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c [2019-10-22 09:00:47,414 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cc634c60-3f99-4a20-9187-64bcbc80d2ea/bin/uautomizer/data/f5d6fe65c/32588983d29a42a4b74abc30ced9cd52/FLAG75d4d61f9 [2019-10-22 09:00:47,873 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:00:47,875 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cc634c60-3f99-4a20-9187-64bcbc80d2ea/sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c [2019-10-22 09:00:47,888 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cc634c60-3f99-4a20-9187-64bcbc80d2ea/bin/uautomizer/data/f5d6fe65c/32588983d29a42a4b74abc30ced9cd52/FLAG75d4d61f9 [2019-10-22 09:00:48,224 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cc634c60-3f99-4a20-9187-64bcbc80d2ea/bin/uautomizer/data/f5d6fe65c/32588983d29a42a4b74abc30ced9cd52 [2019-10-22 09:00:48,227 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:00:48,228 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:00:48,229 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:48,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:00:48,236 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:00:48,237 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:48" (1/1) ... [2019-10-22 09:00:48,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cafd39d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:48, skipping insertion in model container [2019-10-22 09:00:48,239 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:48" (1/1) ... [2019-10-22 09:00:48,245 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:00:48,289 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:00:48,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:48,622 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:00:48,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:48,705 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:00:48,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:48 WrapperNode [2019-10-22 09:00:48,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:48,706 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:48,706 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:00:48,706 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:00:48,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:48" (1/1) ... [2019-10-22 09:00:48,731 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:48" (1/1) ... [2019-10-22 09:00:48,773 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:48,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:00:48,773 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:00:48,773 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:00:48,787 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:48" (1/1) ... [2019-10-22 09:00:48,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:48" (1/1) ... [2019-10-22 09:00:48,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:48" (1/1) ... [2019-10-22 09:00:48,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:48" (1/1) ... [2019-10-22 09:00:48,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:48" (1/1) ... [2019-10-22 09:00:48,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:48" (1/1) ... [2019-10-22 09:00:48,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:48" (1/1) ... [2019-10-22 09:00:48,832 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:00:48,833 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:00:48,833 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:00:48,833 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:00:48,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cc634c60-3f99-4a20-9187-64bcbc80d2ea/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 [2019-10-22 09:00:48,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:00:48,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 09:00:48,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:00:48,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:00:49,415 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:00:49,415 INFO L284 CfgBuilder]: Removed 100 assume(true) statements. [2019-10-22 09:00:49,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:49 BoogieIcfgContainer [2019-10-22 09:00:49,416 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:00:49,417 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:00:49,417 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:00:49,420 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:00:49,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:00:48" (1/3) ... [2019-10-22 09:00:49,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5af2f054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:49, skipping insertion in model container [2019-10-22 09:00:49,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:48" (2/3) ... [2019-10-22 09:00:49,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5af2f054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:49, skipping insertion in model container [2019-10-22 09:00:49,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:49" (3/3) ... [2019-10-22 09:00:49,422 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product35.cil.c [2019-10-22 09:00:49,431 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:00:49,437 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 09:00:49,446 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 09:00:49,473 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:00:49,473 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:00:49,473 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:00:49,473 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:00:49,473 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:00:49,473 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:00:49,473 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:00:49,474 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:00:49,485 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2019-10-22 09:00:49,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 09:00:49,491 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:49,492 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:49,493 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:49,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:49,498 INFO L82 PathProgramCache]: Analyzing trace with hash -1355288485, now seen corresponding path program 1 times [2019-10-22 09:00:49,505 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:49,505 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113814534] [2019-10-22 09:00:49,506 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:49,506 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:49,506 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:49,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:49,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:49,673 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113814534] [2019-10-22 09:00:49,674 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:49,674 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 09:00:49,674 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774049879] [2019-10-22 09:00:49,678 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 09:00:49,678 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:49,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 09:00:49,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 09:00:49,692 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 2 states. [2019-10-22 09:00:49,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:49,716 INFO L93 Difference]: Finished difference Result 154 states and 233 transitions. [2019-10-22 09:00:49,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 09:00:49,717 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-10-22 09:00:49,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:49,726 INFO L225 Difference]: With dead ends: 154 [2019-10-22 09:00:49,727 INFO L226 Difference]: Without dead ends: 76 [2019-10-22 09:00:49,729 INFO L600 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 [2019-10-22 09:00:49,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2019-10-22 09:00:49,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2019-10-22 09:00:49,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-10-22 09:00:49,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 108 transitions. [2019-10-22 09:00:49,760 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 108 transitions. Word has length 16 [2019-10-22 09:00:49,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:49,761 INFO L462 AbstractCegarLoop]: Abstraction has 76 states and 108 transitions. [2019-10-22 09:00:49,761 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 09:00:49,761 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 108 transitions. [2019-10-22 09:00:49,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 09:00:49,762 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:49,762 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:49,762 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:49,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:49,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1892921914, now seen corresponding path program 1 times [2019-10-22 09:00:49,763 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:49,763 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66490136] [2019-10-22 09:00:49,763 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:49,763 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:49,763 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:49,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:49,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:49,888 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66490136] [2019-10-22 09:00:49,889 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:49,889 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:00:49,889 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339616893] [2019-10-22 09:00:49,890 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:00:49,890 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:49,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:00:49,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:00:49,891 INFO L87 Difference]: Start difference. First operand 76 states and 108 transitions. Second operand 3 states. [2019-10-22 09:00:49,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:49,900 INFO L93 Difference]: Finished difference Result 76 states and 108 transitions. [2019-10-22 09:00:49,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:00:49,901 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-10-22 09:00:49,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:49,901 INFO L225 Difference]: With dead ends: 76 [2019-10-22 09:00:49,901 INFO L226 Difference]: Without dead ends: 36 [2019-10-22 09:00:49,902 INFO L600 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 [2019-10-22 09:00:49,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-10-22 09:00:49,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-10-22 09:00:49,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-10-22 09:00:49,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2019-10-22 09:00:49,906 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 51 transitions. Word has length 17 [2019-10-22 09:00:49,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:49,907 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 51 transitions. [2019-10-22 09:00:49,907 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:00:49,907 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2019-10-22 09:00:49,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 09:00:49,908 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:49,908 INFO L380 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] [2019-10-22 09:00:49,908 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:49,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:49,908 INFO L82 PathProgramCache]: Analyzing trace with hash -1160602350, now seen corresponding path program 1 times [2019-10-22 09:00:49,909 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:49,909 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486135615] [2019-10-22 09:00:49,909 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:49,909 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:49,909 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:49,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:50,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:50,027 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486135615] [2019-10-22 09:00:50,027 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:50,028 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 09:00:50,028 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253008564] [2019-10-22 09:00:50,028 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:00:50,028 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:50,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:00:50,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:00:50,029 INFO L87 Difference]: Start difference. First operand 36 states and 51 transitions. Second operand 3 states. [2019-10-22 09:00:50,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:50,050 INFO L93 Difference]: Finished difference Result 96 states and 141 transitions. [2019-10-22 09:00:50,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:00:50,051 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2019-10-22 09:00:50,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:50,052 INFO L225 Difference]: With dead ends: 96 [2019-10-22 09:00:50,052 INFO L226 Difference]: Without dead ends: 66 [2019-10-22 09:00:50,052 INFO L600 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 [2019-10-22 09:00:50,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-10-22 09:00:50,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 62. [2019-10-22 09:00:50,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-10-22 09:00:50,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 91 transitions. [2019-10-22 09:00:50,065 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 91 transitions. Word has length 22 [2019-10-22 09:00:50,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:50,065 INFO L462 AbstractCegarLoop]: Abstraction has 62 states and 91 transitions. [2019-10-22 09:00:50,065 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:00:50,065 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 91 transitions. [2019-10-22 09:00:50,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-22 09:00:50,066 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:50,066 INFO L380 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] [2019-10-22 09:00:50,066 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:50,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:50,067 INFO L82 PathProgramCache]: Analyzing trace with hash 1572373846, now seen corresponding path program 1 times [2019-10-22 09:00:50,067 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:50,067 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559459515] [2019-10-22 09:00:50,067 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:50,067 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:50,067 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:50,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:50,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:50,132 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559459515] [2019-10-22 09:00:50,132 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:50,132 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 09:00:50,132 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273234852] [2019-10-22 09:00:50,133 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:00:50,133 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:50,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:00:50,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:00:50,133 INFO L87 Difference]: Start difference. First operand 62 states and 91 transitions. Second operand 3 states. [2019-10-22 09:00:50,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:50,187 INFO L93 Difference]: Finished difference Result 159 states and 238 transitions. [2019-10-22 09:00:50,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:00:50,189 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-10-22 09:00:50,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:50,190 INFO L225 Difference]: With dead ends: 159 [2019-10-22 09:00:50,190 INFO L226 Difference]: Without dead ends: 103 [2019-10-22 09:00:50,191 INFO L600 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 [2019-10-22 09:00:50,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2019-10-22 09:00:50,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 101. [2019-10-22 09:00:50,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-10-22 09:00:50,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 147 transitions. [2019-10-22 09:00:50,212 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 147 transitions. Word has length 23 [2019-10-22 09:00:50,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:50,212 INFO L462 AbstractCegarLoop]: Abstraction has 101 states and 147 transitions. [2019-10-22 09:00:50,212 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:00:50,212 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 147 transitions. [2019-10-22 09:00:50,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 09:00:50,213 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:50,213 INFO L380 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] [2019-10-22 09:00:50,213 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:50,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:50,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1956458727, now seen corresponding path program 1 times [2019-10-22 09:00:50,214 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:50,214 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552684546] [2019-10-22 09:00:50,214 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:50,217 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:50,217 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:50,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:50,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:50,294 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552684546] [2019-10-22 09:00:50,294 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:50,294 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 09:00:50,295 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704024259] [2019-10-22 09:00:50,295 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:00:50,295 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:50,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:00:50,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:00:50,296 INFO L87 Difference]: Start difference. First operand 101 states and 147 transitions. Second operand 5 states. [2019-10-22 09:00:50,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:50,433 INFO L93 Difference]: Finished difference Result 369 states and 545 transitions. [2019-10-22 09:00:50,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:00:50,434 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-10-22 09:00:50,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:50,435 INFO L225 Difference]: With dead ends: 369 [2019-10-22 09:00:50,435 INFO L226 Difference]: Without dead ends: 274 [2019-10-22 09:00:50,436 INFO L600 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 [2019-10-22 09:00:50,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2019-10-22 09:00:50,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 182. [2019-10-22 09:00:50,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2019-10-22 09:00:50,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 256 transitions. [2019-10-22 09:00:50,455 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 256 transitions. Word has length 25 [2019-10-22 09:00:50,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:50,455 INFO L462 AbstractCegarLoop]: Abstraction has 182 states and 256 transitions. [2019-10-22 09:00:50,455 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:00:50,455 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 256 transitions. [2019-10-22 09:00:50,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 09:00:50,456 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:50,456 INFO L380 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] [2019-10-22 09:00:50,457 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:50,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:50,457 INFO L82 PathProgramCache]: Analyzing trace with hash -2850263, now seen corresponding path program 1 times [2019-10-22 09:00:50,457 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:50,457 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990303645] [2019-10-22 09:00:50,457 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:50,457 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:50,458 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:50,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:50,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:50,521 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990303645] [2019-10-22 09:00:50,521 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:50,522 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 09:00:50,522 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908894295] [2019-10-22 09:00:50,522 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:00:50,524 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:50,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:00:50,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:00:50,525 INFO L87 Difference]: Start difference. First operand 182 states and 256 transitions. Second operand 5 states. [2019-10-22 09:00:50,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:50,631 INFO L93 Difference]: Finished difference Result 368 states and 530 transitions. [2019-10-22 09:00:50,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 09:00:50,632 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-10-22 09:00:50,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:50,633 INFO L225 Difference]: With dead ends: 368 [2019-10-22 09:00:50,633 INFO L226 Difference]: Without dead ends: 366 [2019-10-22 09:00:50,634 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 09:00:50,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2019-10-22 09:00:50,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 182. [2019-10-22 09:00:50,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2019-10-22 09:00:50,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 254 transitions. [2019-10-22 09:00:50,652 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 254 transitions. Word has length 26 [2019-10-22 09:00:50,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:50,652 INFO L462 AbstractCegarLoop]: Abstraction has 182 states and 254 transitions. [2019-10-22 09:00:50,652 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:00:50,653 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 254 transitions. [2019-10-22 09:00:50,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 09:00:50,654 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:50,654 INFO L380 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, 1, 1] [2019-10-22 09:00:50,654 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:50,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:50,655 INFO L82 PathProgramCache]: Analyzing trace with hash -2047428375, now seen corresponding path program 1 times [2019-10-22 09:00:50,655 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:50,655 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853440187] [2019-10-22 09:00:50,655 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:50,656 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:50,656 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:50,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:50,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:50,699 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853440187] [2019-10-22 09:00:50,699 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:50,699 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 09:00:50,699 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293423357] [2019-10-22 09:00:50,699 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:00:50,700 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:50,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:00:50,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:00:50,700 INFO L87 Difference]: Start difference. First operand 182 states and 254 transitions. Second operand 5 states. [2019-10-22 09:00:50,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:50,748 INFO L93 Difference]: Finished difference Result 505 states and 702 transitions. [2019-10-22 09:00:50,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:00:50,749 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-10-22 09:00:50,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:50,751 INFO L225 Difference]: With dead ends: 505 [2019-10-22 09:00:50,751 INFO L226 Difference]: Without dead ends: 329 [2019-10-22 09:00:50,752 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:00:50,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2019-10-22 09:00:50,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 194. [2019-10-22 09:00:50,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2019-10-22 09:00:50,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 266 transitions. [2019-10-22 09:00:50,769 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 266 transitions. Word has length 30 [2019-10-22 09:00:50,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:50,769 INFO L462 AbstractCegarLoop]: Abstraction has 194 states and 266 transitions. [2019-10-22 09:00:50,769 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:00:50,770 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 266 transitions. [2019-10-22 09:00:50,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 09:00:50,771 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:50,771 INFO L380 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, 1, 1] [2019-10-22 09:00:50,771 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:50,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:50,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1854511911, now seen corresponding path program 1 times [2019-10-22 09:00:50,772 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:50,772 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271658131] [2019-10-22 09:00:50,772 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:50,772 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:50,772 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:50,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:50,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:50,809 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271658131] [2019-10-22 09:00:50,810 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:50,810 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 09:00:50,810 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767611866] [2019-10-22 09:00:50,810 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:00:50,811 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:50,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:00:50,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:00:50,811 INFO L87 Difference]: Start difference. First operand 194 states and 266 transitions. Second operand 4 states. [2019-10-22 09:00:50,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:50,847 INFO L93 Difference]: Finished difference Result 426 states and 583 transitions. [2019-10-22 09:00:50,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 09:00:50,848 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-10-22 09:00:50,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:50,849 INFO L225 Difference]: With dead ends: 426 [2019-10-22 09:00:50,849 INFO L226 Difference]: Without dead ends: 238 [2019-10-22 09:00:50,850 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:00:50,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2019-10-22 09:00:50,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 159. [2019-10-22 09:00:50,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2019-10-22 09:00:50,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 214 transitions. [2019-10-22 09:00:50,864 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 214 transitions. Word has length 30 [2019-10-22 09:00:50,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:50,864 INFO L462 AbstractCegarLoop]: Abstraction has 159 states and 214 transitions. [2019-10-22 09:00:50,864 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:00:50,865 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 214 transitions. [2019-10-22 09:00:50,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 09:00:50,865 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:50,866 INFO L380 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, 1, 1] [2019-10-22 09:00:50,866 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:50,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:50,866 INFO L82 PathProgramCache]: Analyzing trace with hash 2112677349, now seen corresponding path program 1 times [2019-10-22 09:00:50,867 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:50,867 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378119061] [2019-10-22 09:00:50,867 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:50,867 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:50,867 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:50,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:50,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:50,909 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378119061] [2019-10-22 09:00:50,910 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:50,910 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 09:00:50,910 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13015394] [2019-10-22 09:00:50,910 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:00:50,911 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:50,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:00:50,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:00:50,911 INFO L87 Difference]: Start difference. First operand 159 states and 214 transitions. Second operand 5 states. [2019-10-22 09:00:51,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:51,031 INFO L93 Difference]: Finished difference Result 420 states and 588 transitions. [2019-10-22 09:00:51,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:00:51,032 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-10-22 09:00:51,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:51,033 INFO L225 Difference]: With dead ends: 420 [2019-10-22 09:00:51,033 INFO L226 Difference]: Without dead ends: 315 [2019-10-22 09:00:51,034 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:00:51,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2019-10-22 09:00:51,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 236. [2019-10-22 09:00:51,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2019-10-22 09:00:51,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 315 transitions. [2019-10-22 09:00:51,049 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 315 transitions. Word has length 30 [2019-10-22 09:00:51,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:51,050 INFO L462 AbstractCegarLoop]: Abstraction has 236 states and 315 transitions. [2019-10-22 09:00:51,050 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:00:51,050 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 315 transitions. [2019-10-22 09:00:51,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-10-22 09:00:51,051 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:51,051 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-22 09:00:51,051 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:51,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:51,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1942803224, now seen corresponding path program 1 times [2019-10-22 09:00:51,052 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:51,052 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098743060] [2019-10-22 09:00:51,052 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:51,052 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:51,052 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:51,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:51,099 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:51,099 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098743060] [2019-10-22 09:00:51,099 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990980071] [2019-10-22 09:00:51,099 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cc634c60-3f99-4a20-9187-64bcbc80d2ea/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:00:51,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:51,205 INFO L256 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 09:00:51,210 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:00:51,230 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:51,230 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 09:00:51,231 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2019-10-22 09:00:51,231 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893533912] [2019-10-22 09:00:51,231 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 09:00:51,231 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:51,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:00:51,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:00:51,232 INFO L87 Difference]: Start difference. First operand 236 states and 315 transitions. Second operand 6 states. [2019-10-22 09:00:51,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:51,374 INFO L93 Difference]: Finished difference Result 699 states and 959 transitions. [2019-10-22 09:00:51,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 09:00:51,374 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2019-10-22 09:00:51,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:51,376 INFO L225 Difference]: With dead ends: 699 [2019-10-22 09:00:51,376 INFO L226 Difference]: Without dead ends: 517 [2019-10-22 09:00:51,377 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2019-10-22 09:00:51,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2019-10-22 09:00:51,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 321. [2019-10-22 09:00:51,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2019-10-22 09:00:51,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 433 transitions. [2019-10-22 09:00:51,402 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 433 transitions. Word has length 45 [2019-10-22 09:00:51,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:51,403 INFO L462 AbstractCegarLoop]: Abstraction has 321 states and 433 transitions. [2019-10-22 09:00:51,403 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 09:00:51,403 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 433 transitions. [2019-10-22 09:00:51,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-22 09:00:51,404 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:51,404 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:51,604 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:00:51,605 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:51,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:51,605 INFO L82 PathProgramCache]: Analyzing trace with hash 511998341, now seen corresponding path program 2 times [2019-10-22 09:00:51,605 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:51,606 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112477784] [2019-10-22 09:00:51,606 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:51,606 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:51,606 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:51,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:52,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:52,203 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:52,203 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 09:00:52,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:00:52 BoogieIcfgContainer [2019-10-22 09:00:52,330 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:00:52,330 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:00:52,330 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:00:52,330 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:00:52,331 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:49" (3/4) ... [2019-10-22 09:00:52,333 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 09:00:52,456 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_cc634c60-3f99-4a20-9187-64bcbc80d2ea/bin/uautomizer/witness.graphml [2019-10-22 09:00:52,456 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:00:52,458 INFO L168 Benchmark]: Toolchain (without parser) took 4229.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 196.6 MB). Free memory was 949.9 MB in the beginning and 1.1 GB in the end (delta: -184.1 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:52,459 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:52,459 INFO L168 Benchmark]: CACSL2BoogieTranslator took 476.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -178.8 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:52,459 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.87 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. [2019-10-22 09:00:52,459 INFO L168 Benchmark]: Boogie Preprocessor took 59.34 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. [2019-10-22 09:00:52,460 INFO L168 Benchmark]: RCFGBuilder took 583.70 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: 56.0 MB). Peak memory consumption was 56.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:52,460 INFO L168 Benchmark]: TraceAbstraction took 2912.62 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 57.1 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -99.6 MB). Peak memory consumption was 196.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:52,460 INFO L168 Benchmark]: Witness Printer took 126.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:52,461 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 476.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -178.8 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 66.87 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. * Boogie Preprocessor took 59.34 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. * RCFGBuilder took 583.70 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: 56.0 MB). Peak memory consumption was 56.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2912.62 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 57.1 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -99.6 MB). Peak memory consumption was 196.4 MB. Max. memory is 11.5 GB. * Witness Printer took 126.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 784]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L148] int pumpRunning = 0; [L149] int systemActive = 1; [L315] int cleanupTimeShifts = 4; [L583] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L824] int waterLevel = 1; [L825] int methaneLevelCritical = 0; [L391] int retValue_acc ; [L392] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L815] int retValue_acc ; [L818] retValue_acc = 1 [L819] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L398] tmp = valid_product() [L400] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L55] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L57] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L842] COND TRUE waterLevel < 2 [L843] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L155] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L162] COND TRUE \read(systemActive) [L184] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L187] COND TRUE ! pumpRunning [L281] int retValue_acc ; [L282] int tmp ; [L283] int tmp___0 ; [L904] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L907] COND FALSE !(waterLevel < 2) [L911] retValue_acc = 0 [L912] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L287] tmp = isHighWaterSensorDry() [L289] COND FALSE !(\read(tmp)) [L292] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L294] retValue_acc = tmp___0 [L295] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L189] tmp = isHighWaterLevel() [L191] COND TRUE \read(tmp) [L212] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L116] int tmp ; [L117] int tmp___0 ; [L895] int retValue_acc ; [L898] retValue_acc = waterLevel [L899] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L121] tmp = getWaterLevel() [L123] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L55] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L57] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L63] tmp = __VERIFIER_nondet_int() [L65] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L155] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L830] COND TRUE waterLevel > 0 [L831] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L162] COND TRUE \read(systemActive) [L184] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L187] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L116] int tmp ; [L117] int tmp___0 ; [L895] int retValue_acc ; [L898] retValue_acc = waterLevel [L899] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L121] tmp = getWaterLevel() [L123] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L55] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L57] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L63] tmp = __VERIFIER_nondet_int() [L65] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L155] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L830] COND TRUE waterLevel > 0 [L831] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L162] COND TRUE \read(systemActive) [L184] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L187] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L116] int tmp ; [L117] int tmp___0 ; [L895] int retValue_acc ; [L898] retValue_acc = waterLevel [L899] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L121] tmp = getWaterLevel() [L123] COND TRUE tmp == 0 [L236] int retValue_acc ; [L239] retValue_acc = pumpRunning [L240] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L125] tmp___0 = isPumpRunning() [L127] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L784] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 80 locations, 3 error locations. Result: UNSAFE, OverallTime: 2.8s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 796 SDtfs, 909 SDslu, 1189 SDs, 0 SdLazy, 191 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 107 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=321occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 771 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 369 NumberOfCodeBlocks, 369 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 298 ConstructedInterpolants, 0 QuantifiedInterpolants, 17410 SizeOfPredicates, 4 NumberOfNonLiveVariables, 374 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 11 InterpolantComputations, 9 PerfectInterpolantSequences, 22/28 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...