./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product51.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_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product51.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0140910feaef212f3eb8993aa9e49d2064d898fa .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product51.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0140910feaef212f3eb8993aa9e49d2064d898fa ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:20:56,199 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:20:56,201 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:20:56,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:20:56,213 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:20:56,214 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:20:56,215 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:20:56,216 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:20:56,218 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:20:56,218 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:20:56,219 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:20:56,220 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:20:56,221 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:20:56,221 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:20:56,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:20:56,223 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:20:56,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:20:56,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:20:56,226 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:20:56,228 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:20:56,229 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:20:56,230 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:20:56,231 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:20:56,231 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:20:56,234 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:20:56,234 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:20:56,234 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:20:56,235 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:20:56,235 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:20:56,236 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:20:56,236 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:20:56,237 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:20:56,238 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:20:56,238 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:20:56,239 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:20:56,240 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:20:56,240 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:20:56,241 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:20:56,241 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:20:56,242 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:20:56,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:20:56,243 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:20:56,256 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:20:56,257 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:20:56,257 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:20:56,258 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:20:56,258 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:20:56,258 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:20:56,258 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:20:56,258 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:20:56,259 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:20:56,259 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:20:56,259 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:20:56,259 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:20:56,264 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:20:56,264 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:20:56,265 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:20:56,265 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:20:56,265 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:20:56,265 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:20:56,265 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:20:56,265 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:20:56,265 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:20:56,266 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:20:56,266 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:20:56,266 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:20:56,266 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:20:56,266 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:20:56,266 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:20:56,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:20:56,267 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:20:56,267 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:20:56,267 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:20:56,267 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:20:56,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:20:56,267 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:20:56,268 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:20:56,268 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan 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 -> Taipan 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 -> 0140910feaef212f3eb8993aa9e49d2064d898fa [2019-10-22 11:20:56,303 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:20:56,313 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:20:56,316 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:20:56,317 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:20:56,317 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:20:56,318 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec5_product51.cil.c [2019-10-22 11:20:56,365 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/data/99cbcf37c/2504fb84d25f40e5953254dbb3ad9138/FLAGd6b91defd [2019-10-22 11:20:56,768 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:20:56,768 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/sv-benchmarks/c/product-lines/minepump_spec5_product51.cil.c [2019-10-22 11:20:56,782 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/data/99cbcf37c/2504fb84d25f40e5953254dbb3ad9138/FLAGd6b91defd [2019-10-22 11:20:56,791 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/data/99cbcf37c/2504fb84d25f40e5953254dbb3ad9138 [2019-10-22 11:20:56,793 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:20:56,794 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:20:56,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:20:56,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:20:56,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:20:56,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46020af8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56, skipping insertion in model container [2019-10-22 11:20:56,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,808 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:20:56,857 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:20:57,180 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:20:57,191 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:20:57,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:20:57,294 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:20:57,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:57 WrapperNode [2019-10-22 11:20:57,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:20:57,295 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:20:57,295 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:20:57,296 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:20:57,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:57" (1/1) ... [2019-10-22 11:20:57,323 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:57" (1/1) ... [2019-10-22 11:20:57,366 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:20:57,367 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:20:57,367 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:20:57,367 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:20:57,387 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:57" (1/1) ... [2019-10-22 11:20:57,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:57" (1/1) ... [2019-10-22 11:20:57,390 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:57" (1/1) ... [2019-10-22 11:20:57,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:57" (1/1) ... [2019-10-22 11:20:57,408 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:57" (1/1) ... [2019-10-22 11:20:57,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:57" (1/1) ... [2019-10-22 11:20:57,416 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:57" (1/1) ... [2019-10-22 11:20:57,419 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:20:57,420 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:20:57,420 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:20:57,420 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:20:57,421 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/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 11:20:57,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:20:57,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 11:20:57,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:20:57,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:20:58,301 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:20:58,301 INFO L284 CfgBuilder]: Removed 174 assume(true) statements. [2019-10-22 11:20:58,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:20:58 BoogieIcfgContainer [2019-10-22 11:20:58,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:20:58,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:20:58,303 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:20:58,307 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:20:58,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:20:56" (1/3) ... [2019-10-22 11:20:58,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28be6ffe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:20:58, skipping insertion in model container [2019-10-22 11:20:58,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:57" (2/3) ... [2019-10-22 11:20:58,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28be6ffe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:20:58, skipping insertion in model container [2019-10-22 11:20:58,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:20:58" (3/3) ... [2019-10-22 11:20:58,310 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product51.cil.c [2019-10-22 11:20:58,321 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:20:58,329 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:20:58,338 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:20:58,359 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:20:58,359 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:20:58,359 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:20:58,359 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:20:58,359 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:20:58,359 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:20:58,360 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:20:58,360 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:20:58,373 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states. [2019-10-22 11:20:58,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:20:58,380 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:20:58,381 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:20:58,383 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:20:58,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:20:58,392 INFO L82 PathProgramCache]: Analyzing trace with hash -1681835383, now seen corresponding path program 1 times [2019-10-22 11:20:58,399 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:20:58,399 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130651632] [2019-10-22 11:20:58,400 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:58,400 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:58,400 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:20:58,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:20:58,618 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 11:20:58,618 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130651632] [2019-10-22 11:20:58,619 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:20:58,619 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:20:58,620 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671238129] [2019-10-22 11:20:58,622 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:20:58,624 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:20:58,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:20:58,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:20:58,638 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 2 states. [2019-10-22 11:20:58,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:20:58,669 INFO L93 Difference]: Finished difference Result 249 states and 376 transitions. [2019-10-22 11:20:58,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:20:58,671 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2019-10-22 11:20:58,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:20:58,682 INFO L225 Difference]: With dead ends: 249 [2019-10-22 11:20:58,682 INFO L226 Difference]: Without dead ends: 124 [2019-10-22 11:20:58,685 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 11:20:58,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-10-22 11:20:58,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2019-10-22 11:20:58,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-10-22 11:20:58,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 180 transitions. [2019-10-22 11:20:58,732 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 180 transitions. Word has length 19 [2019-10-22 11:20:58,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:20:58,733 INFO L462 AbstractCegarLoop]: Abstraction has 124 states and 180 transitions. [2019-10-22 11:20:58,733 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:20:58,733 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 180 transitions. [2019-10-22 11:20:58,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 11:20:58,734 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:20:58,734 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] [2019-10-22 11:20:58,734 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:20:58,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:20:58,735 INFO L82 PathProgramCache]: Analyzing trace with hash 124184170, now seen corresponding path program 1 times [2019-10-22 11:20:58,735 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:20:58,735 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927761858] [2019-10-22 11:20:58,735 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:58,735 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:58,735 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:20:58,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:20:58,871 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 11:20:58,871 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927761858] [2019-10-22 11:20:58,871 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:20:58,872 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:20:58,872 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697669766] [2019-10-22 11:20:58,873 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:20:58,874 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:20:58,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:20:58,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:20:58,874 INFO L87 Difference]: Start difference. First operand 124 states and 180 transitions. Second operand 3 states. [2019-10-22 11:20:58,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:20:58,897 INFO L93 Difference]: Finished difference Result 124 states and 180 transitions. [2019-10-22 11:20:58,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:20:58,898 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-10-22 11:20:58,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:20:58,899 INFO L225 Difference]: With dead ends: 124 [2019-10-22 11:20:58,899 INFO L226 Difference]: Without dead ends: 53 [2019-10-22 11:20:58,900 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 11:20:58,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-10-22 11:20:58,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2019-10-22 11:20:58,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-10-22 11:20:58,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 76 transitions. [2019-10-22 11:20:58,906 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 76 transitions. Word has length 20 [2019-10-22 11:20:58,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:20:58,907 INFO L462 AbstractCegarLoop]: Abstraction has 53 states and 76 transitions. [2019-10-22 11:20:58,907 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:20:58,907 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 76 transitions. [2019-10-22 11:20:58,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 11:20:58,907 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:20:58,908 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, 1, 1, 1, 1] [2019-10-22 11:20:58,908 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:20:58,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:20:58,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1773395585, now seen corresponding path program 1 times [2019-10-22 11:20:58,908 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:20:58,909 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596787720] [2019-10-22 11:20:58,909 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:58,909 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:58,909 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:20:58,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:20:59,026 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 11:20:59,026 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596787720] [2019-10-22 11:20:59,026 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:20:59,026 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:20:59,027 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725843849] [2019-10-22 11:20:59,027 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:20:59,027 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:20:59,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:20:59,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:20:59,028 INFO L87 Difference]: Start difference. First operand 53 states and 76 transitions. Second operand 6 states. [2019-10-22 11:20:59,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:20:59,166 INFO L93 Difference]: Finished difference Result 171 states and 252 transitions. [2019-10-22 11:20:59,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:20:59,168 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2019-10-22 11:20:59,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:20:59,169 INFO L225 Difference]: With dead ends: 171 [2019-10-22 11:20:59,169 INFO L226 Difference]: Without dead ends: 125 [2019-10-22 11:20:59,169 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:20:59,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2019-10-22 11:20:59,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 75. [2019-10-22 11:20:59,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2019-10-22 11:20:59,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 109 transitions. [2019-10-22 11:20:59,182 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 109 transitions. Word has length 26 [2019-10-22 11:20:59,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:20:59,182 INFO L462 AbstractCegarLoop]: Abstraction has 75 states and 109 transitions. [2019-10-22 11:20:59,182 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:20:59,182 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 109 transitions. [2019-10-22 11:20:59,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 11:20:59,183 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:20:59,183 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] [2019-10-22 11:20:59,183 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:20:59,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:20:59,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1811224639, now seen corresponding path program 1 times [2019-10-22 11:20:59,184 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:20:59,184 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30194080] [2019-10-22 11:20:59,184 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:59,185 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:59,185 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:20:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:20:59,308 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 11:20:59,308 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30194080] [2019-10-22 11:20:59,308 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:20:59,308 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:20:59,309 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216684588] [2019-10-22 11:20:59,309 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:20:59,309 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:20:59,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:20:59,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:20:59,310 INFO L87 Difference]: Start difference. First operand 75 states and 109 transitions. Second operand 3 states. [2019-10-22 11:20:59,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:20:59,355 INFO L93 Difference]: Finished difference Result 167 states and 245 transitions. [2019-10-22 11:20:59,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:20:59,355 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2019-10-22 11:20:59,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:20:59,356 INFO L225 Difference]: With dead ends: 167 [2019-10-22 11:20:59,356 INFO L226 Difference]: Without dead ends: 99 [2019-10-22 11:20:59,357 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 11:20:59,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-10-22 11:20:59,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2019-10-22 11:20:59,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-10-22 11:20:59,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 137 transitions. [2019-10-22 11:20:59,378 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 137 transitions. Word has length 28 [2019-10-22 11:20:59,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:20:59,378 INFO L462 AbstractCegarLoop]: Abstraction has 97 states and 137 transitions. [2019-10-22 11:20:59,378 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:20:59,378 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 137 transitions. [2019-10-22 11:20:59,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-22 11:20:59,379 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:20:59,379 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] [2019-10-22 11:20:59,379 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:20:59,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:20:59,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1504916170, now seen corresponding path program 1 times [2019-10-22 11:20:59,384 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:20:59,384 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021612937] [2019-10-22 11:20:59,384 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:59,384 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:59,385 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:20:59,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:20:59,501 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 11:20:59,502 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021612937] [2019-10-22 11:20:59,502 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:20:59,502 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:20:59,502 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878121372] [2019-10-22 11:20:59,503 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:20:59,503 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:20:59,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:20:59,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:20:59,505 INFO L87 Difference]: Start difference. First operand 97 states and 137 transitions. Second operand 5 states. [2019-10-22 11:20:59,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:20:59,692 INFO L93 Difference]: Finished difference Result 314 states and 445 transitions. [2019-10-22 11:20:59,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:20:59,693 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-10-22 11:20:59,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:20:59,694 INFO L225 Difference]: With dead ends: 314 [2019-10-22 11:20:59,694 INFO L226 Difference]: Without dead ends: 224 [2019-10-22 11:20:59,695 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 11:20:59,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2019-10-22 11:20:59,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 95. [2019-10-22 11:20:59,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-10-22 11:20:59,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 131 transitions. [2019-10-22 11:20:59,710 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 131 transitions. Word has length 29 [2019-10-22 11:20:59,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:20:59,710 INFO L462 AbstractCegarLoop]: Abstraction has 95 states and 131 transitions. [2019-10-22 11:20:59,710 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:20:59,710 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 131 transitions. [2019-10-22 11:20:59,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 11:20:59,711 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:20:59,711 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, 1, 1, 1, 1] [2019-10-22 11:20:59,711 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:20:59,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:20:59,712 INFO L82 PathProgramCache]: Analyzing trace with hash 1415533294, now seen corresponding path program 1 times [2019-10-22 11:20:59,712 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:20:59,713 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521273173] [2019-10-22 11:20:59,713 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:59,713 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:59,713 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:20:59,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:20:59,803 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 11:20:59,803 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521273173] [2019-10-22 11:20:59,804 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:20:59,804 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:20:59,804 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222100049] [2019-10-22 11:20:59,804 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:20:59,805 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:20:59,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:20:59,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:20:59,805 INFO L87 Difference]: Start difference. First operand 95 states and 131 transitions. Second operand 5 states. [2019-10-22 11:20:59,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:20:59,881 INFO L93 Difference]: Finished difference Result 276 states and 380 transitions. [2019-10-22 11:20:59,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:20:59,883 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2019-10-22 11:20:59,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:20:59,884 INFO L225 Difference]: With dead ends: 276 [2019-10-22 11:20:59,884 INFO L226 Difference]: Without dead ends: 188 [2019-10-22 11:20:59,885 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 11:20:59,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2019-10-22 11:20:59,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 101. [2019-10-22 11:20:59,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-10-22 11:20:59,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 137 transitions. [2019-10-22 11:20:59,912 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 137 transitions. Word has length 34 [2019-10-22 11:20:59,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:20:59,912 INFO L462 AbstractCegarLoop]: Abstraction has 101 states and 137 transitions. [2019-10-22 11:20:59,912 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:20:59,913 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 137 transitions. [2019-10-22 11:20:59,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 11:20:59,913 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:20:59,914 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, 1, 1, 1, 1] [2019-10-22 11:20:59,914 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:20:59,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:20:59,914 INFO L82 PathProgramCache]: Analyzing trace with hash 2116597872, now seen corresponding path program 1 times [2019-10-22 11:20:59,914 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:20:59,915 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947038362] [2019-10-22 11:20:59,915 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:59,915 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:59,915 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:20:59,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:00,008 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 11:21:00,008 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947038362] [2019-10-22 11:21:00,008 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:00,008 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:21:00,009 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184439381] [2019-10-22 11:21:00,009 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:21:00,009 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:00,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:21:00,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:21:00,010 INFO L87 Difference]: Start difference. First operand 101 states and 137 transitions. Second operand 6 states. [2019-10-22 11:21:00,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:00,113 INFO L93 Difference]: Finished difference Result 293 states and 397 transitions. [2019-10-22 11:21:00,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:21:00,113 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2019-10-22 11:21:00,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:00,114 INFO L225 Difference]: With dead ends: 293 [2019-10-22 11:21:00,115 INFO L226 Difference]: Without dead ends: 199 [2019-10-22 11:21:00,115 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2019-10-22 11:21:00,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2019-10-22 11:21:00,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 105. [2019-10-22 11:21:00,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-10-22 11:21:00,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 141 transitions. [2019-10-22 11:21:00,148 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 141 transitions. Word has length 34 [2019-10-22 11:21:00,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:00,149 INFO L462 AbstractCegarLoop]: Abstraction has 105 states and 141 transitions. [2019-10-22 11:21:00,149 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:21:00,149 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 141 transitions. [2019-10-22 11:21:00,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 11:21:00,149 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:00,150 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, 1, 1, 1, 1] [2019-10-22 11:21:00,150 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:00,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:00,150 INFO L82 PathProgramCache]: Analyzing trace with hash 1529791858, now seen corresponding path program 1 times [2019-10-22 11:21:00,150 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:00,150 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888728171] [2019-10-22 11:21:00,151 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:00,151 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:00,151 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:00,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:00,208 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 11:21:00,208 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888728171] [2019-10-22 11:21:00,208 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:00,208 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:21:00,208 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198025798] [2019-10-22 11:21:00,209 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:21:00,209 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:00,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:21:00,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:00,209 INFO L87 Difference]: Start difference. First operand 105 states and 141 transitions. Second operand 3 states. [2019-10-22 11:21:00,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:00,241 INFO L93 Difference]: Finished difference Result 253 states and 341 transitions. [2019-10-22 11:21:00,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:00,242 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2019-10-22 11:21:00,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:00,243 INFO L225 Difference]: With dead ends: 253 [2019-10-22 11:21:00,243 INFO L226 Difference]: Without dead ends: 155 [2019-10-22 11:21:00,243 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 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 11:21:00,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2019-10-22 11:21:00,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2019-10-22 11:21:00,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2019-10-22 11:21:00,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 204 transitions. [2019-10-22 11:21:00,264 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 204 transitions. Word has length 34 [2019-10-22 11:21:00,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:00,264 INFO L462 AbstractCegarLoop]: Abstraction has 155 states and 204 transitions. [2019-10-22 11:21:00,265 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:21:00,265 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 204 transitions. [2019-10-22 11:21:00,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-22 11:21:00,270 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:00,270 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, 1, 1, 1, 1, 1] [2019-10-22 11:21:00,270 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:00,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:00,271 INFO L82 PathProgramCache]: Analyzing trace with hash 133845682, now seen corresponding path program 1 times [2019-10-22 11:21:00,271 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:00,271 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563822123] [2019-10-22 11:21:00,271 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:00,271 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:00,271 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:00,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:00,358 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 11:21:00,359 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563822123] [2019-10-22 11:21:00,359 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:00,359 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:21:00,359 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681883306] [2019-10-22 11:21:00,359 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:21:00,360 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:00,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:21:00,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:21:00,361 INFO L87 Difference]: Start difference. First operand 155 states and 204 transitions. Second operand 6 states. [2019-10-22 11:21:00,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:00,596 INFO L93 Difference]: Finished difference Result 567 states and 765 transitions. [2019-10-22 11:21:00,596 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:21:00,596 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2019-10-22 11:21:00,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:00,598 INFO L225 Difference]: With dead ends: 567 [2019-10-22 11:21:00,598 INFO L226 Difference]: Without dead ends: 469 [2019-10-22 11:21:00,599 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 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 11:21:00,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2019-10-22 11:21:00,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 221. [2019-10-22 11:21:00,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2019-10-22 11:21:00,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 288 transitions. [2019-10-22 11:21:00,630 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 288 transitions. Word has length 35 [2019-10-22 11:21:00,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:00,630 INFO L462 AbstractCegarLoop]: Abstraction has 221 states and 288 transitions. [2019-10-22 11:21:00,630 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:21:00,630 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 288 transitions. [2019-10-22 11:21:00,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-10-22 11:21:00,631 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:00,637 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:00,637 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:00,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:00,638 INFO L82 PathProgramCache]: Analyzing trace with hash 767046238, now seen corresponding path program 1 times [2019-10-22 11:21:00,638 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:00,638 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073422454] [2019-10-22 11:21:00,638 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:00,638 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:00,638 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:00,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:00,718 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:00,718 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073422454] [2019-10-22 11:21:00,718 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195007153] [2019-10-22 11:21:00,718 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/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 11:21:00,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:00,851 INFO L256 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:21:00,857 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:00,911 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:00,913 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:00,951 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:00,952 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [2071326221] [2019-10-22 11:21:00,958 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 59 [2019-10-22 11:21:01,001 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-10-22 11:21:01,002 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-22 11:21:01,413 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:21:01,413 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: inappropriate decl info IMPLEMENTATION at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.getBoogieVar(NonrelationalStatementProcessor.java:348) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleHavocStatement(NonrelationalStatementProcessor.java:325) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:159) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:138) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:107) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:422) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:413) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:140) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.applyInternally(CompoundDomainPostOperator.java:306) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:131) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.restoreOriginalStateVariables(PoormanCachedPostOperation.java:322) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:120) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateAbstractPost(FixpointEngine.java:249) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateFixpoint(FixpointEngine.java:134) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.run(FixpointEngine.java:105) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.tool.AbstractInterpreter.runWithoutTimeoutAndResults(AbstractInterpreter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.generateFixpoints(CegarAbsIntRunner.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.(CegarAbsIntRunner.java:158) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.getOrConstructRunner(IpTcStrategyModuleAbstractInterpretation.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.construct(IpTcStrategyModuleAbstractInterpretation.java:81) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 11:21:01,419 INFO L168 Benchmark]: Toolchain (without parser) took 4623.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 939.2 MB in the beginning and 938.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 139.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:01,419 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:01,420 INFO L168 Benchmark]: CACSL2BoogieTranslator took 500.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -182.6 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:01,420 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.22 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:01,421 INFO L168 Benchmark]: Boogie Preprocessor took 52.78 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 11:21:01,421 INFO L168 Benchmark]: RCFGBuilder took 882.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 65.3 MB). Peak memory consumption was 65.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:01,421 INFO L168 Benchmark]: TraceAbstraction took 3113.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 938.0 MB in the end (delta: 106.3 MB). Peak memory consumption was 106.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:01,424 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 500.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -182.6 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 71.22 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.78 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 882.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 65.3 MB). Peak memory consumption was 65.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3113.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 938.0 MB in the end (delta: 106.3 MB). Peak memory consumption was 106.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: inappropriate decl info IMPLEMENTATION de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: inappropriate decl info IMPLEMENTATION: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 11:21:03,405 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:21:03,406 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:21:03,415 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:21:03,416 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:21:03,416 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:21:03,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:21:03,418 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:21:03,420 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:21:03,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:21:03,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:21:03,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:21:03,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:21:03,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:21:03,423 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:21:03,424 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:21:03,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:21:03,425 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:21:03,427 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:21:03,428 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:21:03,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:21:03,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:21:03,431 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:21:03,432 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:21:03,433 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:21:03,434 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:21:03,434 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:21:03,434 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:21:03,435 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:21:03,435 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:21:03,436 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:21:03,437 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:21:03,438 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:21:03,439 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:21:03,440 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:21:03,440 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:21:03,441 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:21:03,441 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:21:03,441 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:21:03,442 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:21:03,442 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:21:03,443 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:21:03,453 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:21:03,454 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:21:03,454 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:21:03,454 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:21:03,455 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:21:03,455 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:21:03,455 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:21:03,455 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:21:03,455 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:21:03,456 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:21:03,456 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:21:03,456 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:21:03,456 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:21:03,456 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:21:03,456 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:21:03,456 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:21:03,457 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:21:03,457 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:21:03,457 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:21:03,457 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:21:03,457 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:21:03,457 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:21:03,457 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:21:03,458 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:21:03,458 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:21:03,458 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:21:03,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:21:03,458 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:21:03,458 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:21:03,458 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:21:03,458 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:21:03,459 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:21:03,459 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:21:03,459 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:21:03,459 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan 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 -> Taipan 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 -> 0140910feaef212f3eb8993aa9e49d2064d898fa [2019-10-22 11:21:03,488 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:21:03,505 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:21:03,509 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:21:03,510 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:21:03,510 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:21:03,511 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec5_product51.cil.c [2019-10-22 11:21:03,562 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/data/615f69e90/daf578eb24474767a9e02e88c672413f/FLAGc33089f90 [2019-10-22 11:21:04,050 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:21:04,051 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/sv-benchmarks/c/product-lines/minepump_spec5_product51.cil.c [2019-10-22 11:21:04,067 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/data/615f69e90/daf578eb24474767a9e02e88c672413f/FLAGc33089f90 [2019-10-22 11:21:04,338 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/data/615f69e90/daf578eb24474767a9e02e88c672413f [2019-10-22 11:21:04,342 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:21:04,343 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:21:04,344 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:04,344 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:21:04,347 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:21:04,348 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:04" (1/1) ... [2019-10-22 11:21:04,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5adba133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:04, skipping insertion in model container [2019-10-22 11:21:04,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:04" (1/1) ... [2019-10-22 11:21:04,357 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:21:04,408 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:21:04,706 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:04,731 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:21:04,890 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:04,922 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:21:04,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:04 WrapperNode [2019-10-22 11:21:04,923 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:04,923 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:04,924 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:21:04,924 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:21:04,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:04" (1/1) ... [2019-10-22 11:21:04,949 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:04" (1/1) ... [2019-10-22 11:21:04,988 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:04,988 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:21:04,988 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:21:04,988 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:21:04,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:04" (1/1) ... [2019-10-22 11:21:04,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:04" (1/1) ... [2019-10-22 11:21:05,002 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:04" (1/1) ... [2019-10-22 11:21:05,002 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:04" (1/1) ... [2019-10-22 11:21:05,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:04" (1/1) ... [2019-10-22 11:21:05,035 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:04" (1/1) ... [2019-10-22 11:21:05,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:04" (1/1) ... [2019-10-22 11:21:05,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:21:05,049 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:21:05,049 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:21:05,049 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:21:05,050 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/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 11:21:05,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:21:05,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-10-22 11:21:05,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:21:05,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:21:05,997 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:21:05,998 INFO L284 CfgBuilder]: Removed 174 assume(true) statements. [2019-10-22 11:21:05,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:05 BoogieIcfgContainer [2019-10-22 11:21:05,999 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:21:06,000 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:21:06,000 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:21:06,003 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:21:06,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:21:04" (1/3) ... [2019-10-22 11:21:06,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@478044af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:06, skipping insertion in model container [2019-10-22 11:21:06,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:04" (2/3) ... [2019-10-22 11:21:06,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@478044af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:06, skipping insertion in model container [2019-10-22 11:21:06,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:05" (3/3) ... [2019-10-22 11:21:06,007 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product51.cil.c [2019-10-22 11:21:06,015 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:21:06,022 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:21:06,030 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:21:06,050 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:21:06,051 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:21:06,051 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:21:06,051 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:21:06,051 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:21:06,051 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:21:06,051 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:21:06,051 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:21:06,064 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states. [2019-10-22 11:21:06,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:21:06,071 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:06,071 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:06,073 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:06,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:06,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1681835383, now seen corresponding path program 1 times [2019-10-22 11:21:06,086 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:06,087 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1558816467] [2019-10-22 11:21:06,087 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:06,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:06,251 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-22 11:21:06,256 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:06,271 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 11:21:06,273 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:06,278 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 11:21:06,284 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1558816467] [2019-10-22 11:21:06,285 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:06,285 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 11:21:06,285 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358176299] [2019-10-22 11:21:06,290 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:21:06,291 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:06,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:21:06,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:21:06,306 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 2 states. [2019-10-22 11:21:06,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:06,335 INFO L93 Difference]: Finished difference Result 249 states and 376 transitions. [2019-10-22 11:21:06,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:21:06,336 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2019-10-22 11:21:06,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:06,350 INFO L225 Difference]: With dead ends: 249 [2019-10-22 11:21:06,350 INFO L226 Difference]: Without dead ends: 124 [2019-10-22 11:21:06,356 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 36 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 11:21:06,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-10-22 11:21:06,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2019-10-22 11:21:06,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-10-22 11:21:06,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 180 transitions. [2019-10-22 11:21:06,397 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 180 transitions. Word has length 19 [2019-10-22 11:21:06,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:06,398 INFO L462 AbstractCegarLoop]: Abstraction has 124 states and 180 transitions. [2019-10-22 11:21:06,398 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:21:06,398 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 180 transitions. [2019-10-22 11:21:06,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 11:21:06,399 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:06,399 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] [2019-10-22 11:21:06,600 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:06,600 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:06,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:06,600 INFO L82 PathProgramCache]: Analyzing trace with hash 124184170, now seen corresponding path program 1 times [2019-10-22 11:21:06,601 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:06,601 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [258073497] [2019-10-22 11:21:06,601 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:06,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:06,755 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:21:06,757 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:06,779 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 11:21:06,779 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:06,789 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 11:21:06,790 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [258073497] [2019-10-22 11:21:06,790 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:06,790 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-10-22 11:21:06,790 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100168765] [2019-10-22 11:21:06,792 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:21:06,792 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:06,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:21:06,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:06,793 INFO L87 Difference]: Start difference. First operand 124 states and 180 transitions. Second operand 4 states. [2019-10-22 11:21:06,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:06,903 INFO L93 Difference]: Finished difference Result 415 states and 606 transitions. [2019-10-22 11:21:06,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:21:06,906 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2019-10-22 11:21:06,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:06,908 INFO L225 Difference]: With dead ends: 415 [2019-10-22 11:21:06,908 INFO L226 Difference]: Without dead ends: 298 [2019-10-22 11:21:06,910 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:06,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2019-10-22 11:21:06,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 173. [2019-10-22 11:21:06,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2019-10-22 11:21:06,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 251 transitions. [2019-10-22 11:21:06,944 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 251 transitions. Word has length 20 [2019-10-22 11:21:06,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:06,945 INFO L462 AbstractCegarLoop]: Abstraction has 173 states and 251 transitions. [2019-10-22 11:21:06,945 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:21:06,945 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 251 transitions. [2019-10-22 11:21:06,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 11:21:06,946 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:06,946 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 11:21:07,147 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:07,147 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:07,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:07,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1761991656, now seen corresponding path program 1 times [2019-10-22 11:21:07,148 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:07,148 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [133437889] [2019-10-22 11:21:07,148 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:07,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:07,300 INFO L256 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:21:07,302 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:07,308 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 11:21:07,308 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:07,310 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 11:21:07,311 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [133437889] [2019-10-22 11:21:07,311 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:07,311 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-22 11:21:07,311 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635699462] [2019-10-22 11:21:07,312 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:21:07,312 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:07,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:21:07,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:07,313 INFO L87 Difference]: Start difference. First operand 173 states and 251 transitions. Second operand 3 states. [2019-10-22 11:21:07,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:07,480 INFO L93 Difference]: Finished difference Result 392 states and 565 transitions. [2019-10-22 11:21:07,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:07,481 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2019-10-22 11:21:07,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:07,482 INFO L225 Difference]: With dead ends: 392 [2019-10-22 11:21:07,483 INFO L226 Difference]: Without dead ends: 226 [2019-10-22 11:21:07,484 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 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 11:21:07,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2019-10-22 11:21:07,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 220. [2019-10-22 11:21:07,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2019-10-22 11:21:07,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 305 transitions. [2019-10-22 11:21:07,510 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 305 transitions. Word has length 22 [2019-10-22 11:21:07,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:07,511 INFO L462 AbstractCegarLoop]: Abstraction has 220 states and 305 transitions. [2019-10-22 11:21:07,511 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:21:07,511 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 305 transitions. [2019-10-22 11:21:07,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 11:21:07,512 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:07,512 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] [2019-10-22 11:21:07,715 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:07,716 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:07,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:07,716 INFO L82 PathProgramCache]: Analyzing trace with hash -1904629289, now seen corresponding path program 1 times [2019-10-22 11:21:07,717 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:07,717 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1167318715] [2019-10-22 11:21:07,717 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:07,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:07,877 INFO L256 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:21:07,878 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:07,903 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 11:21:07,903 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:07,911 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 11:21:07,915 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1167318715] [2019-10-22 11:21:07,915 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:07,915 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:21:07,916 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118423089] [2019-10-22 11:21:07,916 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:21:07,916 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:07,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:21:07,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:21:07,917 INFO L87 Difference]: Start difference. First operand 220 states and 305 transitions. Second operand 5 states. [2019-10-22 11:21:08,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:08,171 INFO L93 Difference]: Finished difference Result 660 states and 900 transitions. [2019-10-22 11:21:08,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:21:08,171 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2019-10-22 11:21:08,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:08,173 INFO L225 Difference]: With dead ends: 660 [2019-10-22 11:21:08,173 INFO L226 Difference]: Without dead ends: 447 [2019-10-22 11:21:08,174 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 53 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 11:21:08,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2019-10-22 11:21:08,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 238. [2019-10-22 11:21:08,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2019-10-22 11:21:08,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 323 transitions. [2019-10-22 11:21:08,200 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 323 transitions. Word has length 28 [2019-10-22 11:21:08,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:08,200 INFO L462 AbstractCegarLoop]: Abstraction has 238 states and 323 transitions. [2019-10-22 11:21:08,200 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:21:08,200 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 323 transitions. [2019-10-22 11:21:08,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 11:21:08,201 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:08,201 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] [2019-10-22 11:21:08,402 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:08,402 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:08,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:08,403 INFO L82 PathProgramCache]: Analyzing trace with hash -971165580, now seen corresponding path program 1 times [2019-10-22 11:21:08,403 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:08,403 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [214999164] [2019-10-22 11:21:08,404 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:08,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:08,539 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:21:08,541 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:08,566 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 11:21:08,566 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:08,570 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 11:21:08,570 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [214999164] [2019-10-22 11:21:08,571 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:08,571 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:21:08,571 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161729429] [2019-10-22 11:21:08,571 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:21:08,572 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:08,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:21:08,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:21:08,572 INFO L87 Difference]: Start difference. First operand 238 states and 323 transitions. Second operand 5 states. [2019-10-22 11:21:08,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:08,930 INFO L93 Difference]: Finished difference Result 783 states and 1047 transitions. [2019-10-22 11:21:08,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:21:08,931 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2019-10-22 11:21:08,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:08,933 INFO L225 Difference]: With dead ends: 783 [2019-10-22 11:21:08,933 INFO L226 Difference]: Without dead ends: 552 [2019-10-22 11:21:08,934 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 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 11:21:08,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2019-10-22 11:21:08,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 232. [2019-10-22 11:21:08,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2019-10-22 11:21:08,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 305 transitions. [2019-10-22 11:21:08,955 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 305 transitions. Word has length 28 [2019-10-22 11:21:08,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:08,955 INFO L462 AbstractCegarLoop]: Abstraction has 232 states and 305 transitions. [2019-10-22 11:21:08,955 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:21:08,955 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 305 transitions. [2019-10-22 11:21:08,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 11:21:08,956 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:08,956 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] [2019-10-22 11:21:09,157 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:09,159 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:09,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:09,160 INFO L82 PathProgramCache]: Analyzing trace with hash -1203564711, now seen corresponding path program 1 times [2019-10-22 11:21:09,160 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:09,160 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1192679196] [2019-10-22 11:21:09,160 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:09,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:09,294 INFO L256 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:21:09,295 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:09,307 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 11:21:09,308 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:09,324 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 11:21:09,325 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1192679196] [2019-10-22 11:21:09,325 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:09,325 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-10-22 11:21:09,325 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406564625] [2019-10-22 11:21:09,325 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:21:09,326 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:09,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:21:09,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:21:09,326 INFO L87 Difference]: Start difference. First operand 232 states and 305 transitions. Second operand 6 states. [2019-10-22 11:21:09,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:09,480 INFO L93 Difference]: Finished difference Result 675 states and 873 transitions. [2019-10-22 11:21:09,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:21:09,481 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2019-10-22 11:21:09,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:09,483 INFO L225 Difference]: With dead ends: 675 [2019-10-22 11:21:09,483 INFO L226 Difference]: Without dead ends: 450 [2019-10-22 11:21:09,484 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:21:09,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2019-10-22 11:21:09,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 244. [2019-10-22 11:21:09,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2019-10-22 11:21:09,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 317 transitions. [2019-10-22 11:21:09,511 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 317 transitions. Word has length 28 [2019-10-22 11:21:09,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:09,512 INFO L462 AbstractCegarLoop]: Abstraction has 244 states and 317 transitions. [2019-10-22 11:21:09,513 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:21:09,513 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 317 transitions. [2019-10-22 11:21:09,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 11:21:09,516 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:09,517 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] [2019-10-22 11:21:09,717 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:09,718 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:09,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:09,718 INFO L82 PathProgramCache]: Analyzing trace with hash -1790370725, now seen corresponding path program 1 times [2019-10-22 11:21:09,718 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:09,719 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1849551081] [2019-10-22 11:21:09,719 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:09,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:09,948 INFO L256 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:21:09,949 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:09,955 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 11:21:09,955 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:09,963 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 11:21:09,963 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1849551081] [2019-10-22 11:21:09,964 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:09,964 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-10-22 11:21:09,964 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868685394] [2019-10-22 11:21:09,964 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:21:09,964 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:09,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:21:09,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:09,965 INFO L87 Difference]: Start difference. First operand 244 states and 317 transitions. Second operand 4 states. [2019-10-22 11:21:09,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:09,975 INFO L93 Difference]: Finished difference Result 244 states and 317 transitions. [2019-10-22 11:21:09,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:09,976 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2019-10-22 11:21:09,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:09,976 INFO L225 Difference]: With dead ends: 244 [2019-10-22 11:21:09,976 INFO L226 Difference]: Without dead ends: 105 [2019-10-22 11:21:09,977 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:09,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2019-10-22 11:21:09,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2019-10-22 11:21:09,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-10-22 11:21:09,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 141 transitions. [2019-10-22 11:21:09,985 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 141 transitions. Word has length 28 [2019-10-22 11:21:09,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:09,986 INFO L462 AbstractCegarLoop]: Abstraction has 105 states and 141 transitions. [2019-10-22 11:21:09,986 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:21:09,986 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 141 transitions. [2019-10-22 11:21:09,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 11:21:09,986 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:09,986 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, 1, 1, 1, 1] [2019-10-22 11:21:10,187 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:10,188 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:10,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:10,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1529791858, now seen corresponding path program 1 times [2019-10-22 11:21:10,190 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:10,190 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [639080540] [2019-10-22 11:21:10,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:10,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:10,419 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:21:10,421 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:10,431 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 11:21:10,434 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:10,443 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 11:21:10,444 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [639080540] [2019-10-22 11:21:10,444 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:10,444 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-10-22 11:21:10,444 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925044341] [2019-10-22 11:21:10,444 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:21:10,445 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:10,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:21:10,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:10,445 INFO L87 Difference]: Start difference. First operand 105 states and 141 transitions. Second operand 4 states. [2019-10-22 11:21:10,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:10,505 INFO L93 Difference]: Finished difference Result 337 states and 457 transitions. [2019-10-22 11:21:10,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:21:10,506 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2019-10-22 11:21:10,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:10,507 INFO L225 Difference]: With dead ends: 337 [2019-10-22 11:21:10,507 INFO L226 Difference]: Without dead ends: 239 [2019-10-22 11:21:10,508 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:10,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2019-10-22 11:21:10,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 187. [2019-10-22 11:21:10,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2019-10-22 11:21:10,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 251 transitions. [2019-10-22 11:21:10,530 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 251 transitions. Word has length 34 [2019-10-22 11:21:10,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:10,530 INFO L462 AbstractCegarLoop]: Abstraction has 187 states and 251 transitions. [2019-10-22 11:21:10,530 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:21:10,530 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 251 transitions. [2019-10-22 11:21:10,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-22 11:21:10,531 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:10,531 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, 1, 1, 1, 1, 1] [2019-10-22 11:21:10,734 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:10,734 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:10,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:10,734 INFO L82 PathProgramCache]: Analyzing trace with hash 133845682, now seen corresponding path program 1 times [2019-10-22 11:21:10,735 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:10,735 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1923156594] [2019-10-22 11:21:10,735 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:10,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:10,881 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:21:10,882 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:10,913 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 11:21:10,913 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:10,921 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 11:21:10,921 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1923156594] [2019-10-22 11:21:10,921 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:10,921 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:21:10,921 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009130955] [2019-10-22 11:21:10,921 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:21:10,922 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:10,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:21:10,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:21:10,922 INFO L87 Difference]: Start difference. First operand 187 states and 251 transitions. Second operand 6 states. [2019-10-22 11:21:11,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:11,337 INFO L93 Difference]: Finished difference Result 948 states and 1287 transitions. [2019-10-22 11:21:11,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-22 11:21:11,337 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2019-10-22 11:21:11,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:11,340 INFO L225 Difference]: With dead ends: 948 [2019-10-22 11:21:11,340 INFO L226 Difference]: Without dead ends: 768 [2019-10-22 11:21:11,340 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 63 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2019-10-22 11:21:11,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2019-10-22 11:21:11,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 341. [2019-10-22 11:21:11,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2019-10-22 11:21:11,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 452 transitions. [2019-10-22 11:21:11,380 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 452 transitions. Word has length 35 [2019-10-22 11:21:11,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:11,381 INFO L462 AbstractCegarLoop]: Abstraction has 341 states and 452 transitions. [2019-10-22 11:21:11,381 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:21:11,381 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 452 transitions. [2019-10-22 11:21:11,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-10-22 11:21:11,383 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:11,383 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:11,584 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:11,584 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:11,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:11,584 INFO L82 PathProgramCache]: Analyzing trace with hash 767046238, now seen corresponding path program 1 times [2019-10-22 11:21:11,585 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:11,585 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [496625108] [2019-10-22 11:21:11,585 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:11,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:11,758 INFO L256 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:21:11,760 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:11,834 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:11,834 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:11,867 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:11,869 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [496625108] [2019-10-22 11:21:11,870 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877516464] [2019-10-22 11:21:11,870 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:21:11,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:11,991 INFO L256 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:21:11,993 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:12,026 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:12,026 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:12,034 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:12,034 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-22 11:21:12,034 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5] total 8 [2019-10-22 11:21:12,034 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102073348] [2019-10-22 11:21:12,035 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:21:12,036 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:12,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:21:12,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:21:12,037 INFO L87 Difference]: Start difference. First operand 341 states and 452 transitions. Second operand 8 states. [2019-10-22 11:21:12,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:12,443 INFO L93 Difference]: Finished difference Result 848 states and 1139 transitions. [2019-10-22 11:21:12,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-22 11:21:12,443 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2019-10-22 11:21:12,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:12,446 INFO L225 Difference]: With dead ends: 848 [2019-10-22 11:21:12,446 INFO L226 Difference]: Without dead ends: 514 [2019-10-22 11:21:12,447 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2019-10-22 11:21:12,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2019-10-22 11:21:12,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 326. [2019-10-22 11:21:12,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2019-10-22 11:21:12,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 420 transitions. [2019-10-22 11:21:12,482 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 420 transitions. Word has length 58 [2019-10-22 11:21:12,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:12,483 INFO L462 AbstractCegarLoop]: Abstraction has 326 states and 420 transitions. [2019-10-22 11:21:12,483 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:21:12,483 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 420 transitions. [2019-10-22 11:21:12,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-10-22 11:21:12,484 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:12,484 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:12,885 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:12,885 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:12,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:12,885 INFO L82 PathProgramCache]: Analyzing trace with hash -1762745507, now seen corresponding path program 1 times [2019-10-22 11:21:12,886 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:12,887 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1221886585] [2019-10-22 11:21:12,887 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:13,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:13,045 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:21:13,047 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:13,094 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-22 11:21:13,094 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:13,103 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-22 11:21:13,104 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1221886585] [2019-10-22 11:21:13,104 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:13,104 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:21:13,104 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684894141] [2019-10-22 11:21:13,104 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:21:13,105 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:13,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:21:13,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:21:13,105 INFO L87 Difference]: Start difference. First operand 326 states and 420 transitions. Second operand 5 states. [2019-10-22 11:21:13,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:13,221 INFO L93 Difference]: Finished difference Result 1190 states and 1547 transitions. [2019-10-22 11:21:13,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:21:13,222 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 103 [2019-10-22 11:21:13,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:13,225 INFO L225 Difference]: With dead ends: 1190 [2019-10-22 11:21:13,226 INFO L226 Difference]: Without dead ends: 871 [2019-10-22 11:21:13,226 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 203 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 11:21:13,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2019-10-22 11:21:13,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 335. [2019-10-22 11:21:13,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2019-10-22 11:21:13,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 429 transitions. [2019-10-22 11:21:13,266 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 429 transitions. Word has length 103 [2019-10-22 11:21:13,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:13,267 INFO L462 AbstractCegarLoop]: Abstraction has 335 states and 429 transitions. [2019-10-22 11:21:13,267 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:21:13,267 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 429 transitions. [2019-10-22 11:21:13,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-10-22 11:21:13,269 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:13,270 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:13,470 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:13,470 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:13,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:13,471 INFO L82 PathProgramCache]: Analyzing trace with hash 288238491, now seen corresponding path program 1 times [2019-10-22 11:21:13,471 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:13,471 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1352063572] [2019-10-22 11:21:13,471 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:13,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:13,610 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 11:21:13,612 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:13,653 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-22 11:21:13,653 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:13,701 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-22 11:21:13,702 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1352063572] [2019-10-22 11:21:13,702 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830125742] [2019-10-22 11:21:13,702 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:21:13,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:13,838 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-22 11:21:13,840 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:13,898 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 91 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-22 11:21:13,898 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:14,028 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-22 11:21:14,028 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-22 11:21:14,028 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7, 7, 8] total 18 [2019-10-22 11:21:14,029 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942933208] [2019-10-22 11:21:14,029 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:21:14,029 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:14,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:21:14,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2019-10-22 11:21:14,030 INFO L87 Difference]: Start difference. First operand 335 states and 429 transitions. Second operand 8 states. [2019-10-22 11:21:14,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:14,704 INFO L93 Difference]: Finished difference Result 1414 states and 1820 transitions. [2019-10-22 11:21:14,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-22 11:21:14,704 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 103 [2019-10-22 11:21:14,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:14,707 INFO L225 Difference]: With dead ends: 1414 [2019-10-22 11:21:14,708 INFO L226 Difference]: Without dead ends: 1086 [2019-10-22 11:21:14,709 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 401 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=185, Invalid=685, Unknown=0, NotChecked=0, Total=870 [2019-10-22 11:21:14,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1086 states. [2019-10-22 11:21:14,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1086 to 603. [2019-10-22 11:21:14,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 603 states. [2019-10-22 11:21:14,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 782 transitions. [2019-10-22 11:21:14,777 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 782 transitions. Word has length 103 [2019-10-22 11:21:14,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:14,777 INFO L462 AbstractCegarLoop]: Abstraction has 603 states and 782 transitions. [2019-10-22 11:21:14,777 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:21:14,777 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 782 transitions. [2019-10-22 11:21:14,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-10-22 11:21:14,778 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:14,779 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:15,179 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:21:15,180 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:15,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:15,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1767617952, now seen corresponding path program 1 times [2019-10-22 11:21:15,181 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:15,181 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [180402801] [2019-10-22 11:21:15,181 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/cvc4 Starting monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:15,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:15,346 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:21:15,348 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:15,376 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-22 11:21:15,376 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:15,408 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-22 11:21:15,409 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [180402801] [2019-10-22 11:21:15,409 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:15,409 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-10-22 11:21:15,409 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236897128] [2019-10-22 11:21:15,409 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:21:15,410 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:15,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:21:15,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:21:15,410 INFO L87 Difference]: Start difference. First operand 603 states and 782 transitions. Second operand 8 states. [2019-10-22 11:21:15,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:15,788 INFO L93 Difference]: Finished difference Result 1450 states and 1864 transitions. [2019-10-22 11:21:15,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:21:15,789 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 105 [2019-10-22 11:21:15,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:15,791 INFO L225 Difference]: With dead ends: 1450 [2019-10-22 11:21:15,792 INFO L226 Difference]: Without dead ends: 854 [2019-10-22 11:21:15,793 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2019-10-22 11:21:15,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2019-10-22 11:21:15,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 603. [2019-10-22 11:21:15,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 603 states. [2019-10-22 11:21:15,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 773 transitions. [2019-10-22 11:21:15,863 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 773 transitions. Word has length 105 [2019-10-22 11:21:15,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:15,863 INFO L462 AbstractCegarLoop]: Abstraction has 603 states and 773 transitions. [2019-10-22 11:21:15,863 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:21:15,863 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 773 transitions. [2019-10-22 11:21:15,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-10-22 11:21:15,864 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:15,864 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:16,065 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:16,065 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:16,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:16,065 INFO L82 PathProgramCache]: Analyzing trace with hash -478816911, now seen corresponding path program 1 times [2019-10-22 11:21:16,066 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:16,066 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1346124041] [2019-10-22 11:21:16,066 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/cvc4 Starting monitored process 17 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:16,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:16,222 INFO L256 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 11:21:16,224 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:16,257 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-22 11:21:16,257 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:16,301 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-22 11:21:16,301 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1346124041] [2019-10-22 11:21:16,302 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927798683] [2019-10-22 11:21:16,302 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:21:16,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:16,425 INFO L256 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 11:21:16,428 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:16,435 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-22 11:21:16,435 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:16,445 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-22 11:21:16,446 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-22 11:21:16,446 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7] total 9 [2019-10-22 11:21:16,446 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247381822] [2019-10-22 11:21:16,447 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 11:21:16,447 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:16,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 11:21:16,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:21:16,447 INFO L87 Difference]: Start difference. First operand 603 states and 773 transitions. Second operand 9 states. [2019-10-22 11:21:16,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:16,887 INFO L93 Difference]: Finished difference Result 1381 states and 1777 transitions. [2019-10-22 11:21:16,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 11:21:16,888 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 106 [2019-10-22 11:21:16,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:16,890 INFO L225 Difference]: With dead ends: 1381 [2019-10-22 11:21:16,890 INFO L226 Difference]: Without dead ends: 896 [2019-10-22 11:21:16,891 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 428 GetRequests, 416 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2019-10-22 11:21:16,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2019-10-22 11:21:16,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 625. [2019-10-22 11:21:16,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2019-10-22 11:21:16,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 793 transitions. [2019-10-22 11:21:16,963 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 793 transitions. Word has length 106 [2019-10-22 11:21:16,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:16,963 INFO L462 AbstractCegarLoop]: Abstraction has 625 states and 793 transitions. [2019-10-22 11:21:16,963 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 11:21:16,963 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 793 transitions. [2019-10-22 11:21:16,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-22 11:21:16,964 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:16,964 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:17,365 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:17,365 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:17,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:17,366 INFO L82 PathProgramCache]: Analyzing trace with hash 1722024118, now seen corresponding path program 1 times [2019-10-22 11:21:17,366 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:17,366 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1126026737] [2019-10-22 11:21:17,366 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/cvc4 Starting monitored process 19 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:17,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:17,660 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:21:17,661 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:17,690 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 19 proven. 84 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-22 11:21:17,690 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:17,738 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 19 proven. 84 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-22 11:21:17,739 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1126026737] [2019-10-22 11:21:17,739 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956371801] [2019-10-22 11:21:17,739 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:21:17,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:17,877 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 12 conjunts are in the unsatisfiable core [2019-10-22 11:21:17,879 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:17,966 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 71 proven. 6 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2019-10-22 11:21:17,966 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:18,035 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:21:18,046 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-22 11:21:18,047 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-22 11:21:18,047 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 4, 7] total 15 [2019-10-22 11:21:18,047 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109347151] [2019-10-22 11:21:18,047 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:21:18,050 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:18,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:21:18,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2019-10-22 11:21:18,050 INFO L87 Difference]: Start difference. First operand 625 states and 793 transitions. Second operand 5 states. [2019-10-22 11:21:18,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:18,515 INFO L93 Difference]: Finished difference Result 1459 states and 1853 transitions. [2019-10-22 11:21:18,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:21:18,516 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 108 [2019-10-22 11:21:18,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:18,519 INFO L225 Difference]: With dead ends: 1459 [2019-10-22 11:21:18,519 INFO L226 Difference]: Without dead ends: 949 [2019-10-22 11:21:18,521 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 413 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2019-10-22 11:21:18,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2019-10-22 11:21:18,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 577. [2019-10-22 11:21:18,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 577 states. [2019-10-22 11:21:18,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 733 transitions. [2019-10-22 11:21:18,598 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 733 transitions. Word has length 108 [2019-10-22 11:21:18,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:18,598 INFO L462 AbstractCegarLoop]: Abstraction has 577 states and 733 transitions. [2019-10-22 11:21:18,598 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:21:18,598 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 733 transitions. [2019-10-22 11:21:18,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-22 11:21:18,600 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:18,600 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:19,001 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,19 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:19,001 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:19,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:19,001 INFO L82 PathProgramCache]: Analyzing trace with hash -1893670924, now seen corresponding path program 1 times [2019-10-22 11:21:19,002 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:19,002 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1582528303] [2019-10-22 11:21:19,002 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/cvc4 Starting monitored process 21 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:19,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:19,134 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:21:19,135 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:19,153 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-22 11:21:19,153 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:19,181 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-22 11:21:19,181 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1582528303] [2019-10-22 11:21:19,181 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:19,181 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-10-22 11:21:19,181 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674620822] [2019-10-22 11:21:19,182 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:21:19,182 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:19,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:21:19,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:21:19,182 INFO L87 Difference]: Start difference. First operand 577 states and 733 transitions. Second operand 8 states. [2019-10-22 11:21:19,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:19,265 INFO L93 Difference]: Finished difference Result 916 states and 1156 transitions. [2019-10-22 11:21:19,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:21:19,266 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 108 [2019-10-22 11:21:19,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:19,267 INFO L225 Difference]: With dead ends: 916 [2019-10-22 11:21:19,267 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:21:19,268 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-10-22 11:21:19,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:21:19,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:21:19,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:21:19,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:21:19,269 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 108 [2019-10-22 11:21:19,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:19,269 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:21:19,269 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:21:19,269 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:21:19,269 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:21:19,470 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:19,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:21:19,610 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2019-10-22 11:21:20,268 WARN L191 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 197 [2019-10-22 11:21:20,566 WARN L191 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 166 [2019-10-22 11:21:21,016 WARN L191 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 207 [2019-10-22 11:21:21,456 WARN L191 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 195 [2019-10-22 11:21:21,710 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 149 [2019-10-22 11:21:21,979 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 207 [2019-10-22 11:21:22,411 WARN L191 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 297 DAG size of output: 243 [2019-10-22 11:21:22,611 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 189 [2019-10-22 11:21:23,108 WARN L191 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 223 [2019-10-22 11:21:24,238 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 186 DAG size of output: 26 [2019-10-22 11:21:25,021 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 38 [2019-10-22 11:21:26,085 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 199 DAG size of output: 32 [2019-10-22 11:21:26,186 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 29 [2019-10-22 11:21:27,107 WARN L191 SmtUtils]: Spent 918.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 26 [2019-10-22 11:21:27,364 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 21 [2019-10-22 11:21:28,025 WARN L191 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 14 [2019-10-22 11:21:28,966 WARN L191 SmtUtils]: Spent 939.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 32 [2019-10-22 11:21:30,468 WARN L191 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 238 DAG size of output: 20 [2019-10-22 11:21:31,392 WARN L191 SmtUtils]: Spent 898.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 29 [2019-10-22 11:21:31,933 WARN L191 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 31 [2019-10-22 11:21:32,124 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 17 [2019-10-22 11:21:33,310 WARN L191 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 214 DAG size of output: 24 [2019-10-22 11:21:33,620 WARN L191 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 26 [2019-10-22 11:21:33,622 INFO L446 ceAbstractionStarter]: At program point L367(lines 348 370) the Hoare annotation is: true [2019-10-22 11:21:33,622 INFO L439 ceAbstractionStarter]: At program point L70(lines 70 76) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse6 (not (= ~systemActive~0 (_ bv0 32))))) (let ((.cse3 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse1 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|)) (.cse5 (= (_ bv2 32) ~waterLevel~0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse4 (and .cse0 .cse6))) (or (and (and .cse0 .cse1 .cse2) .cse3) (and .cse3 .cse2 .cse4) (and .cse0 .cse5 .cse1 .cse2) (and (= (_ bv1 32) ~pumpRunning~0) .cse5 .cse6 .cse2) (and .cse5 .cse2 .cse4)))) [2019-10-22 11:21:33,622 INFO L439 ceAbstractionStarter]: At program point L70-1(lines 70 76) the Hoare annotation is: false [2019-10-22 11:21:33,623 INFO L439 ceAbstractionStarter]: At program point L70-2(lines 70 76) the Hoare annotation is: false [2019-10-22 11:21:33,623 INFO L439 ceAbstractionStarter]: At program point L929(lines 920 933) the Hoare annotation is: false [2019-10-22 11:21:33,623 INFO L439 ceAbstractionStarter]: At program point L929-1(lines 920 933) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 (_ bv0 32)))) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) .cse0 .cse1 .cse2) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (and .cse0 (= (_ bv2 32) ~waterLevel~0) .cse1 .cse2))) [2019-10-22 11:21:33,623 INFO L439 ceAbstractionStarter]: At program point L929-2(lines 920 933) the Hoare annotation is: false [2019-10-22 11:21:33,623 INFO L439 ceAbstractionStarter]: At program point L929-3(lines 920 933) the Hoare annotation is: false [2019-10-22 11:21:33,623 INFO L439 ceAbstractionStarter]: At program point L929-4(lines 920 933) the Hoare annotation is: false [2019-10-22 11:21:33,623 INFO L439 ceAbstractionStarter]: At program point L929-5(lines 920 933) the Hoare annotation is: false [2019-10-22 11:21:33,623 INFO L443 ceAbstractionStarter]: For program point L402(lines 402 408) no Hoare annotation was computed. [2019-10-22 11:21:33,623 INFO L439 ceAbstractionStarter]: At program point L402-1(lines 402 408) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse5 (not (= ~systemActive~0 (_ bv0 32))))) (let ((.cse1 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|)) (.cse4 (= (_ bv2 32) ~waterLevel~0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse6 (and .cse0 .cse5)) (.cse3 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and (= ~waterLevel~0 ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~9) (= ~waterLevel~0 |ULTIMATE.start_getWaterLevel_#res|) (and (and .cse0 .cse1 .cse2) .cse3)) (and .cse0 .cse4 .cse1 .cse2) (and (= (_ bv1 32) ~pumpRunning~0) .cse4 .cse5 .cse2) (and .cse4 .cse2 .cse6) (and (and .cse2 .cse6) .cse3)))) [2019-10-22 11:21:33,623 INFO L439 ceAbstractionStarter]: At program point L469(lines 464 472) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:21:33,623 INFO L439 ceAbstractionStarter]: At program point L174(lines 169 177) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse3 (= (_ bv2 32) ~waterLevel~0)) (.cse1 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and (and .cse0 .cse1 .cse2) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (and (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) (not (= ~systemActive~0 (_ bv0 32))) .cse3 .cse2) (and .cse0 .cse3 .cse1 .cse2))) [2019-10-22 11:21:33,624 INFO L439 ceAbstractionStarter]: At program point L174-1(lines 169 177) the Hoare annotation is: (and (= ~waterLevel~0 ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~9) (= ~waterLevel~0 |ULTIMATE.start_getWaterLevel_#res|) (= (_ bv0 32) ~pumpRunning~0) (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) [2019-10-22 11:21:33,624 INFO L439 ceAbstractionStarter]: At program point L174-2(lines 169 177) the Hoare annotation is: false [2019-10-22 11:21:33,624 INFO L439 ceAbstractionStarter]: At program point L174-3(lines 169 177) the Hoare annotation is: false [2019-10-22 11:21:33,624 INFO L439 ceAbstractionStarter]: At program point L174-4(lines 169 177) the Hoare annotation is: false [2019-10-22 11:21:33,624 INFO L439 ceAbstractionStarter]: At program point L174-5(lines 169 177) the Hoare annotation is: false [2019-10-22 11:21:33,624 INFO L443 ceAbstractionStarter]: For program point L242(lines 242 246) no Hoare annotation was computed. [2019-10-22 11:21:33,624 INFO L443 ceAbstractionStarter]: For program point L242-2(lines 242 246) no Hoare annotation was computed. [2019-10-22 11:21:33,624 INFO L443 ceAbstractionStarter]: For program point L242-3(lines 242 246) no Hoare annotation was computed. [2019-10-22 11:21:33,624 INFO L443 ceAbstractionStarter]: For program point L242-5(lines 242 246) no Hoare annotation was computed. [2019-10-22 11:21:33,624 INFO L443 ceAbstractionStarter]: For program point L242-6(lines 242 246) no Hoare annotation was computed. [2019-10-22 11:21:33,624 INFO L443 ceAbstractionStarter]: For program point L242-8(lines 242 246) no Hoare annotation was computed. [2019-10-22 11:21:33,625 INFO L439 ceAbstractionStarter]: At program point L969(lines 63 69) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse3 (= (_ bv2 32) ~waterLevel~0)) (.cse1 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and (and .cse0 .cse1 .cse2) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (and (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) ~switchedOnBeforeTS~0) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) (not (= ~systemActive~0 (_ bv0 32))) .cse3 .cse2) (and .cse0 .cse3 .cse1 .cse2))) [2019-10-22 11:21:33,625 INFO L439 ceAbstractionStarter]: At program point L969-1(lines 63 69) the Hoare annotation is: false [2019-10-22 11:21:33,625 INFO L439 ceAbstractionStarter]: At program point L969-2(lines 63 69) the Hoare annotation is: false [2019-10-22 11:21:33,625 INFO L443 ceAbstractionStarter]: For program point L871(lines 871 875) no Hoare annotation was computed. [2019-10-22 11:21:33,625 INFO L439 ceAbstractionStarter]: At program point L939(lines 934 942) the Hoare annotation is: (and (not (= ~systemActive~0 (_ bv0 32))) (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) ~switchedOnBeforeTS~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) [2019-10-22 11:21:33,625 INFO L439 ceAbstractionStarter]: At program point L939-1(lines 934 942) the Hoare annotation is: false [2019-10-22 11:21:33,625 INFO L439 ceAbstractionStarter]: At program point L939-2(lines 934 942) the Hoare annotation is: false [2019-10-22 11:21:33,625 INFO L439 ceAbstractionStarter]: At program point L279-2(lines 279 293) the Hoare annotation is: false [2019-10-22 11:21:33,625 INFO L443 ceAbstractionStarter]: For program point L412(lines 412 425) no Hoare annotation was computed. [2019-10-22 11:21:33,625 INFO L443 ceAbstractionStarter]: For program point L280(line 280) no Hoare annotation was computed. [2019-10-22 11:21:33,625 INFO L439 ceAbstractionStarter]: At program point L248(lines 233 251) the Hoare annotation is: (and (not (= ~systemActive~0 (_ bv0 32))) (= ULTIMATE.start_isLowWaterLevel_~tmp~3 (_ bv0 32)) (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) ~switchedOnBeforeTS~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) (= (bvadd ULTIMATE.start_isLowWaterLevel_~tmp___0~1 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd |ULTIMATE.start_isLowWaterLevel_#res| (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) [2019-10-22 11:21:33,626 INFO L439 ceAbstractionStarter]: At program point L248-1(lines 233 251) the Hoare annotation is: false [2019-10-22 11:21:33,626 INFO L439 ceAbstractionStarter]: At program point L248-2(lines 233 251) the Hoare annotation is: false [2019-10-22 11:21:33,626 INFO L443 ceAbstractionStarter]: For program point L283(lines 283 287) no Hoare annotation was computed. [2019-10-22 11:21:33,626 INFO L443 ceAbstractionStarter]: For program point L283-1(lines 283 287) no Hoare annotation was computed. [2019-10-22 11:21:33,626 INFO L443 ceAbstractionStarter]: For program point L383(lines 382 429) no Hoare annotation was computed. [2019-10-22 11:21:33,626 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:21:33,627 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 948) no Hoare annotation was computed. [2019-10-22 11:21:33,627 INFO L443 ceAbstractionStarter]: For program point L384(lines 384 388) no Hoare annotation was computed. [2019-10-22 11:21:33,628 INFO L443 ceAbstractionStarter]: For program point L847(lines 847 851) no Hoare annotation was computed. [2019-10-22 11:21:33,628 INFO L443 ceAbstractionStarter]: For program point L847-3(lines 847 851) no Hoare annotation was computed. [2019-10-22 11:21:33,628 INFO L443 ceAbstractionStarter]: For program point L847-6(lines 847 851) no Hoare annotation was computed. [2019-10-22 11:21:33,628 INFO L443 ceAbstractionStarter]: For program point L418(lines 418 424) no Hoare annotation was computed. [2019-10-22 11:21:33,628 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 948) no Hoare annotation was computed. [2019-10-22 11:21:33,628 INFO L439 ceAbstractionStarter]: At program point L418-1(lines 418 424) the Hoare annotation is: (let ((.cse2 (= (_ bv2 32) ~waterLevel~0)) (.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and .cse0 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) .cse1) (and (= (_ bv1 32) ~pumpRunning~0) .cse2 (not (= ~systemActive~0 (_ bv0 32))) .cse1) (and .cse2 .cse0 .cse1))) [2019-10-22 11:21:33,628 INFO L443 ceAbstractionStarter]: For program point L121(lines 121 138) no Hoare annotation was computed. [2019-10-22 11:21:33,628 INFO L443 ceAbstractionStarter]: For program point L121-1(lines 121 138) no Hoare annotation was computed. [2019-10-22 11:21:33,628 INFO L443 ceAbstractionStarter]: For program point L121-2(lines 121 138) no Hoare annotation was computed. [2019-10-22 11:21:33,629 INFO L443 ceAbstractionStarter]: For program point L980(lines 980 997) no Hoare annotation was computed. [2019-10-22 11:21:33,629 INFO L439 ceAbstractionStarter]: At program point L980-1(lines 1 1000) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse7 (not (= ~systemActive~0 (_ bv0 32))))) (let ((.cse2 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|)) (.cse5 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse6 (= (_ bv2 32) ~waterLevel~0)) (.cse1 (= (_ bv2 32) ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~9)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse8 (and .cse0 .cse7)) (.cse4 (= (_ bv2 32) |ULTIMATE.start_getWaterLevel_#res|))) (or (and (and .cse0 .cse1 .cse2 .cse3) (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) .cse4) (and (= ~waterLevel~0 ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~9) (= ~waterLevel~0 |ULTIMATE.start_getWaterLevel_#res|) (and (and .cse0 .cse2 .cse3) .cse5)) (and (= (_ bv1 32) ~pumpRunning~0) .cse6 .cse7 .cse1 .cse3 .cse4) (and (and .cse3 .cse8) .cse5) (and .cse6 .cse1 .cse3 .cse8 .cse4)))) [2019-10-22 11:21:33,629 INFO L443 ceAbstractionStarter]: For program point L980-2(lines 980 997) no Hoare annotation was computed. [2019-10-22 11:21:33,629 INFO L439 ceAbstractionStarter]: At program point L980-3(lines 1 1000) the Hoare annotation is: false [2019-10-22 11:21:33,629 INFO L443 ceAbstractionStarter]: For program point L980-4(lines 980 997) no Hoare annotation was computed. [2019-10-22 11:21:33,629 INFO L439 ceAbstractionStarter]: At program point L980-5(lines 1 1000) the Hoare annotation is: false [2019-10-22 11:21:33,629 INFO L443 ceAbstractionStarter]: For program point L948(line 948) no Hoare annotation was computed. [2019-10-22 11:21:33,629 INFO L443 ceAbstractionStarter]: For program point L948-1(line 948) no Hoare annotation was computed. [2019-10-22 11:21:33,629 INFO L443 ceAbstractionStarter]: For program point L948-2(line 948) no Hoare annotation was computed. [2019-10-22 11:21:33,629 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 948) no Hoare annotation was computed. [2019-10-22 11:21:33,630 INFO L439 ceAbstractionStarter]: At program point L916(lines 911 919) the Hoare annotation is: (let ((.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse8 (not (= ~systemActive~0 (_ bv0 32))))) (let ((.cse0 (= ~waterLevel~0 |ULTIMATE.start_getWaterLevel_#res|)) (.cse4 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse5 (and .cse1 .cse8)) (.cse6 (= (_ bv2 32) ~waterLevel~0)) (.cse2 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse7 (= (_ bv2 32) |ULTIMATE.start_getWaterLevel_#res|))) (or (and .cse0 (and (and .cse1 .cse2 .cse3) .cse4)) (and .cse0 (and .cse4 .cse3 .cse5)) (and .cse6 .cse3 .cse5 .cse7) (and (= (_ bv1 32) ~pumpRunning~0) .cse6 .cse8 .cse3 .cse7) (and .cse1 .cse6 .cse2 .cse3 .cse7)))) [2019-10-22 11:21:33,630 INFO L439 ceAbstractionStarter]: At program point L916-1(lines 911 919) the Hoare annotation is: false [2019-10-22 11:21:33,630 INFO L439 ceAbstractionStarter]: At program point L916-2(lines 911 919) the Hoare annotation is: false [2019-10-22 11:21:33,630 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:21:33,630 INFO L443 ceAbstractionStarter]: For program point L256(lines 256 262) no Hoare annotation was computed. [2019-10-22 11:21:33,630 INFO L439 ceAbstractionStarter]: At program point L256-1(lines 256 262) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and .cse0 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) .cse1) (and (= (_ bv2 32) ~waterLevel~0) .cse0 .cse1))) [2019-10-22 11:21:33,630 INFO L443 ceAbstractionStarter]: For program point L223(lines 223 227) no Hoare annotation was computed. [2019-10-22 11:21:33,630 INFO L443 ceAbstractionStarter]: For program point L223-2(lines 223 227) no Hoare annotation was computed. [2019-10-22 11:21:33,631 INFO L443 ceAbstractionStarter]: For program point L223-3(lines 223 227) no Hoare annotation was computed. [2019-10-22 11:21:33,631 INFO L443 ceAbstractionStarter]: For program point L223-5(lines 223 227) no Hoare annotation was computed. [2019-10-22 11:21:33,631 INFO L443 ceAbstractionStarter]: For program point L223-6(lines 223 227) no Hoare annotation was computed. [2019-10-22 11:21:33,631 INFO L443 ceAbstractionStarter]: For program point L223-8(lines 223 227) no Hoare annotation was computed. [2019-10-22 11:21:33,631 INFO L443 ceAbstractionStarter]: For program point L223-9(lines 223 227) no Hoare annotation was computed. [2019-10-22 11:21:33,631 INFO L443 ceAbstractionStarter]: For program point L223-11(lines 223 227) no Hoare annotation was computed. [2019-10-22 11:21:33,631 INFO L443 ceAbstractionStarter]: For program point L223-12(lines 223 227) no Hoare annotation was computed. [2019-10-22 11:21:33,631 INFO L443 ceAbstractionStarter]: For program point L223-14(lines 223 227) no Hoare annotation was computed. [2019-10-22 11:21:33,631 INFO L443 ceAbstractionStarter]: For program point L223-15(lines 223 227) no Hoare annotation was computed. [2019-10-22 11:21:33,631 INFO L443 ceAbstractionStarter]: For program point L223-17(lines 223 227) no Hoare annotation was computed. [2019-10-22 11:21:33,631 INFO L443 ceAbstractionStarter]: For program point L125(lines 125 133) no Hoare annotation was computed. [2019-10-22 11:21:33,631 INFO L443 ceAbstractionStarter]: For program point L125-1(lines 125 133) no Hoare annotation was computed. [2019-10-22 11:21:33,632 INFO L443 ceAbstractionStarter]: For program point L125-2(lines 125 133) no Hoare annotation was computed. [2019-10-22 11:21:33,632 INFO L443 ceAbstractionStarter]: For program point L984(lines 984 994) no Hoare annotation was computed. [2019-10-22 11:21:33,633 INFO L443 ceAbstractionStarter]: For program point L984-2(lines 984 994) no Hoare annotation was computed. [2019-10-22 11:21:33,633 INFO L443 ceAbstractionStarter]: For program point L984-4(lines 984 994) no Hoare annotation was computed. [2019-10-22 11:21:33,633 INFO L443 ceAbstractionStarter]: For program point L985(lines 985 991) no Hoare annotation was computed. [2019-10-22 11:21:33,633 INFO L443 ceAbstractionStarter]: For program point L985-2(lines 985 991) no Hoare annotation was computed. [2019-10-22 11:21:33,633 INFO L443 ceAbstractionStarter]: For program point L985-4(lines 985 991) no Hoare annotation was computed. [2019-10-22 11:21:33,633 INFO L443 ceAbstractionStarter]: For program point L358(lines 358 365) no Hoare annotation was computed. [2019-10-22 11:21:33,633 INFO L446 ceAbstractionStarter]: At program point L358-1(lines 358 365) the Hoare annotation is: true [2019-10-22 11:21:33,633 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:21:33,633 INFO L443 ceAbstractionStarter]: For program point L392(lines 392 398) no Hoare annotation was computed. [2019-10-22 11:21:33,634 INFO L439 ceAbstractionStarter]: At program point L392-1(lines 392 398) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse5 (not (= ~systemActive~0 (_ bv0 32))))) (let ((.cse1 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|)) (.cse4 (= (_ bv2 32) ~waterLevel~0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse6 (and .cse0 .cse5)) (.cse3 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and (= ~waterLevel~0 ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~9) (= ~waterLevel~0 |ULTIMATE.start_getWaterLevel_#res|) (and (and .cse0 .cse1 .cse2) .cse3)) (and .cse0 .cse4 .cse1 .cse2) (and (= (_ bv1 32) ~pumpRunning~0) .cse4 .cse5 .cse2) (and .cse4 .cse2 .cse6) (and (and .cse2 .cse6) .cse3)))) [2019-10-22 11:21:33,634 INFO L443 ceAbstractionStarter]: For program point L95(lines 95 112) no Hoare annotation was computed. [2019-10-22 11:21:33,634 INFO L443 ceAbstractionStarter]: For program point L95-1(lines 95 112) no Hoare annotation was computed. [2019-10-22 11:21:33,634 INFO L443 ceAbstractionStarter]: For program point L95-2(lines 95 112) no Hoare annotation was computed. [2019-10-22 11:21:33,634 INFO L443 ceAbstractionStarter]: For program point L95-3(lines 95 112) no Hoare annotation was computed. [2019-10-22 11:21:33,634 INFO L443 ceAbstractionStarter]: For program point L95-4(lines 95 112) no Hoare annotation was computed. [2019-10-22 11:21:33,634 INFO L443 ceAbstractionStarter]: For program point L95-5(lines 95 112) no Hoare annotation was computed. [2019-10-22 11:21:33,634 INFO L439 ceAbstractionStarter]: At program point L63(lines 59 81) the Hoare annotation is: (let ((.cse3 (= (_ bv0 32) ~pumpRunning~0)) (.cse6 (not (= ~systemActive~0 (_ bv0 32))))) (let ((.cse4 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|)) (.cse0 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse5 (= (_ bv2 32) ~waterLevel~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (and .cse3 .cse6))) (or (and .cse0 .cse1 .cse2) (and (and .cse3 .cse4 .cse1) .cse0) (and .cse3 .cse5 .cse4 .cse1) (and (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) ~switchedOnBeforeTS~0) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) .cse6 .cse0 .cse1) (and .cse5 .cse1 .cse2)))) [2019-10-22 11:21:33,634 INFO L439 ceAbstractionStarter]: At program point L63-1(lines 59 81) the Hoare annotation is: false [2019-10-22 11:21:33,634 INFO L439 ceAbstractionStarter]: At program point L63-2(lines 59 81) the Hoare annotation is: false [2019-10-22 11:21:33,634 INFO L439 ceAbstractionStarter]: At program point L229(lines 214 232) the Hoare annotation is: false [2019-10-22 11:21:33,635 INFO L439 ceAbstractionStarter]: At program point L229-1(lines 214 232) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 (_ bv0 32)))) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (and (and (not (= ULTIMATE.start_isHighWaterLevel_~tmp~2 (_ bv0 32))) .cse0 .cse1 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv0 32))) .cse2)) (and .cse0 (= (_ bv2 32) ~waterLevel~0) .cse1 .cse2))) [2019-10-22 11:21:33,635 INFO L439 ceAbstractionStarter]: At program point L229-2(lines 214 232) the Hoare annotation is: false [2019-10-22 11:21:33,635 INFO L439 ceAbstractionStarter]: At program point L229-3(lines 214 232) the Hoare annotation is: false [2019-10-22 11:21:33,635 INFO L439 ceAbstractionStarter]: At program point L229-4(lines 214 232) the Hoare annotation is: false [2019-10-22 11:21:33,635 INFO L439 ceAbstractionStarter]: At program point L229-5(lines 214 232) the Hoare annotation is: false [2019-10-22 11:21:33,635 INFO L439 ceAbstractionStarter]: At program point L461(lines 1 1000) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:21:33,635 INFO L439 ceAbstractionStarter]: At program point L329(lines 325 331) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:21:33,635 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 11:21:33,635 INFO L443 ceAbstractionStarter]: For program point L924(lines 924 930) no Hoare annotation was computed. [2019-10-22 11:21:33,635 INFO L443 ceAbstractionStarter]: For program point L924-1(lines 924 930) no Hoare annotation was computed. [2019-10-22 11:21:33,635 INFO L443 ceAbstractionStarter]: For program point L924-2(lines 924 930) no Hoare annotation was computed. [2019-10-22 11:21:33,636 INFO L443 ceAbstractionStarter]: For program point L924-3(lines 924 930) no Hoare annotation was computed. [2019-10-22 11:21:33,636 INFO L443 ceAbstractionStarter]: For program point L924-4(lines 924 930) no Hoare annotation was computed. [2019-10-22 11:21:33,636 INFO L443 ceAbstractionStarter]: For program point L924-5(lines 924 930) no Hoare annotation was computed. [2019-10-22 11:21:33,637 INFO L443 ceAbstractionStarter]: For program point L99(lines 99 107) no Hoare annotation was computed. [2019-10-22 11:21:33,637 INFO L443 ceAbstractionStarter]: For program point L99-1(lines 99 107) no Hoare annotation was computed. [2019-10-22 11:21:33,637 INFO L443 ceAbstractionStarter]: For program point L99-2(lines 99 107) no Hoare annotation was computed. [2019-10-22 11:21:33,637 INFO L443 ceAbstractionStarter]: For program point L99-3(lines 99 107) no Hoare annotation was computed. [2019-10-22 11:21:33,637 INFO L443 ceAbstractionStarter]: For program point L99-4(lines 99 107) no Hoare annotation was computed. [2019-10-22 11:21:33,637 INFO L443 ceAbstractionStarter]: For program point L99-5(lines 99 107) no Hoare annotation was computed. [2019-10-22 11:21:33,637 INFO L443 ceAbstractionStarter]: For program point L859(lines 859 863) no Hoare annotation was computed. [2019-10-22 11:21:33,637 INFO L439 ceAbstractionStarter]: At program point L430(lines 381 431) the Hoare annotation is: false [2019-10-22 11:21:33,637 INFO L439 ceAbstractionStarter]: At program point L959(lines 954 961) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:21:33,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:21:33 BoogieIcfgContainer [2019-10-22 11:21:33,664 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:21:33,664 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:21:33,665 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:21:33,665 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:21:33,665 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:05" (3/4) ... [2019-10-22 11:21:33,670 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:21:33,690 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2019-10-22 11:21:33,695 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2019-10-22 11:21:33,696 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-10-22 11:21:33,698 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 11:21:33,699 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 11:21:33,700 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 11:21:33,738 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((0bv32 == pumpRunning && 2bv32 == tmp) && 0bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967294bv32) == 0bv32) && 2bv32 == \result) || ((waterLevel == tmp && waterLevel == \result) && ((0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || (((((1bv32 == pumpRunning && 2bv32 == waterLevel) && !(systemActive == 0bv32)) && 2bv32 == tmp) && splverifierCounter == 0bv32) && 2bv32 == \result)) || ((splverifierCounter == 0bv32 && 0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((((2bv32 == waterLevel && 2bv32 == tmp) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32)) && 2bv32 == \result) [2019-10-22 11:21:33,739 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((waterLevel == tmp && waterLevel == \result) && ((0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((0bv32 == pumpRunning && 2bv32 == waterLevel) && 0bv32 == \result) && splverifierCounter == 0bv32)) || (((1bv32 == pumpRunning && 2bv32 == waterLevel) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32)) || ((2bv32 == waterLevel && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32))) || ((splverifierCounter == 0bv32 && 0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) [2019-10-22 11:21:33,739 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((waterLevel == tmp && waterLevel == \result) && ((0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((0bv32 == pumpRunning && 2bv32 == waterLevel) && 0bv32 == \result) && splverifierCounter == 0bv32)) || (((1bv32 == pumpRunning && 2bv32 == waterLevel) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32)) || ((2bv32 == waterLevel && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32))) || ((splverifierCounter == 0bv32 && 0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) [2019-10-22 11:21:33,739 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || ((((1bv32 == pumpRunning && 1bv32 == \result) && !(systemActive == 0bv32)) && 2bv32 == waterLevel) && splverifierCounter == 0bv32)) || (((0bv32 == pumpRunning && 2bv32 == waterLevel) && 0bv32 == \result) && splverifierCounter == 0bv32) [2019-10-22 11:21:33,740 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && !(systemActive == 0bv32)) && 2bv32 == waterLevel) && splverifierCounter == 0bv32)) || (((0bv32 == pumpRunning && 2bv32 == waterLevel) && 0bv32 == \result) && splverifierCounter == 0bv32) [2019-10-22 11:21:33,741 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((~bvadd64(waterLevel, 4294967295bv32) == 0bv32 && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32)) || (((0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || (((0bv32 == pumpRunning && 2bv32 == waterLevel) && 0bv32 == \result) && splverifierCounter == 0bv32)) || (((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || ((2bv32 == waterLevel && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32)) [2019-10-22 11:21:33,742 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || ((~bvadd64(waterLevel, 4294967295bv32) == 0bv32 && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32))) || (((0bv32 == pumpRunning && 2bv32 == waterLevel) && 0bv32 == \result) && splverifierCounter == 0bv32)) || (((1bv32 == pumpRunning && 2bv32 == waterLevel) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32)) || ((2bv32 == waterLevel && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32)) [2019-10-22 11:21:33,743 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((waterLevel == \result && ((0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (waterLevel == \result && (~bvadd64(waterLevel, 4294967295bv32) == 0bv32 && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32))) || (((2bv32 == waterLevel && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32)) && 2bv32 == \result)) || ((((1bv32 == pumpRunning && 2bv32 == waterLevel) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) && 2bv32 == \result)) || ((((0bv32 == pumpRunning && 2bv32 == waterLevel) && 0bv32 == \result) && splverifierCounter == 0bv32) && 2bv32 == \result) [2019-10-22 11:21:33,744 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(systemActive == 0bv32) && 1bv32 == pumpRunning) && 1bv32 == switchedOnBeforeTS) && \result == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32 [2019-10-22 11:21:33,746 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1bv32 == \result && 0bv32 == pumpRunning) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((0bv32 == pumpRunning && 2bv32 == waterLevel) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) [2019-10-22 11:21:33,746 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((waterLevel == tmp && waterLevel == \result) && 0bv32 == pumpRunning) && 0bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32 [2019-10-22 11:21:33,746 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(systemActive == 0bv32) && tmp == 0bv32) && 1bv32 == pumpRunning) && 1bv32 == switchedOnBeforeTS) && \result == 0bv32) && 1bv32 == \result) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32 [2019-10-22 11:21:33,747 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~bvadd64(waterLevel, 4294967295bv32) == 0bv32 && ((((!(tmp == 0bv32) && 0bv32 == pumpRunning) && !(systemActive == 0bv32)) && \result == 0bv32) && tmp___0 == 0bv32) && splverifierCounter == 0bv32) || (((0bv32 == pumpRunning && 2bv32 == waterLevel) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) [2019-10-22 11:21:33,814 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5d95cfa5-aede-4b84-89e7-4b295634a228/bin/utaipan/witness.graphml [2019-10-22 11:21:33,814 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:21:33,816 INFO L168 Benchmark]: Toolchain (without parser) took 29473.09 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 568.3 MB). Free memory was 951.0 MB in the beginning and 917.8 MB in the end (delta: 33.2 MB). Peak memory consumption was 601.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:33,816 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:33,816 INFO L168 Benchmark]: CACSL2BoogieTranslator took 579.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -179.6 MB). Peak memory consumption was 35.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:33,817 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.29 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:33,817 INFO L168 Benchmark]: Boogie Preprocessor took 60.43 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 11:21:33,817 INFO L168 Benchmark]: RCFGBuilder took 950.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 77.5 MB). Peak memory consumption was 77.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:33,817 INFO L168 Benchmark]: TraceAbstraction took 27663.96 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 417.9 MB). Free memory was 1.0 GB in the beginning and 932.4 MB in the end (delta: 114.1 MB). Peak memory consumption was 635.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:33,818 INFO L168 Benchmark]: Witness Printer took 149.82 ms. Allocated memory is still 1.6 GB. Free memory was 932.4 MB in the beginning and 917.8 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:33,820 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 579.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -179.6 MB). Peak memory consumption was 35.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 64.29 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 60.43 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 950.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 77.5 MB). Peak memory consumption was 77.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 27663.96 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 417.9 MB). Free memory was 1.0 GB in the beginning and 932.4 MB in the end (delta: 114.1 MB). Peak memory consumption was 635.9 MB. Max. memory is 11.5 GB. * Witness Printer took 149.82 ms. Allocated memory is still 1.6 GB. Free memory was 932.4 MB in the beginning and 917.8 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 948]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 948]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 948]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 934]: Loop Invariant Derived loop invariant: (((((!(systemActive == 0bv32) && 1bv32 == pumpRunning) && 1bv32 == switchedOnBeforeTS) && \result == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32 - InvariantResult [Line: 934]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 325]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: ((((0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && !(systemActive == 0bv32)) && 2bv32 == waterLevel) && splverifierCounter == 0bv32)) || (((0bv32 == pumpRunning && 2bv32 == waterLevel) && 0bv32 == \result) && splverifierCounter == 0bv32) - InvariantResult [Line: 920]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((((((0bv32 == pumpRunning && 2bv32 == tmp) && 0bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967294bv32) == 0bv32) && 2bv32 == \result) || ((waterLevel == tmp && waterLevel == \result) && ((0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || (((((1bv32 == pumpRunning && 2bv32 == waterLevel) && !(systemActive == 0bv32)) && 2bv32 == tmp) && splverifierCounter == 0bv32) && 2bv32 == \result)) || ((splverifierCounter == 0bv32 && 0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((((2bv32 == waterLevel && 2bv32 == tmp) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32)) && 2bv32 == \result) - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 233]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 920]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 233]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 920]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 402]: Loop Invariant Derived loop invariant: (((((waterLevel == tmp && waterLevel == \result) && ((0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((0bv32 == pumpRunning && 2bv32 == waterLevel) && 0bv32 == \result) && splverifierCounter == 0bv32)) || (((1bv32 == pumpRunning && 2bv32 == waterLevel) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32)) || ((2bv32 == waterLevel && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32))) || ((splverifierCounter == 0bv32 && 0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 233]: Loop Invariant Derived loop invariant: ((((((((!(systemActive == 0bv32) && tmp == 0bv32) && 1bv32 == pumpRunning) && 1bv32 == switchedOnBeforeTS) && \result == 0bv32) && 1bv32 == \result) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32 - InvariantResult [Line: 358]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: ((((((0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || ((~bvadd64(waterLevel, 4294967295bv32) == 0bv32 && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32))) || (((0bv32 == pumpRunning && 2bv32 == waterLevel) && 0bv32 == \result) && splverifierCounter == 0bv32)) || (((1bv32 == pumpRunning && 2bv32 == waterLevel) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32)) || ((2bv32 == waterLevel && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32)) - InvariantResult [Line: 920]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 920]: Loop Invariant Derived loop invariant: ((((1bv32 == \result && 0bv32 == pumpRunning) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((0bv32 == pumpRunning && 2bv32 == waterLevel) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 920]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 256]: Loop Invariant Derived loop invariant: ((0bv32 == pumpRunning && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || ((2bv32 == waterLevel && 0bv32 == pumpRunning) && splverifierCounter == 0bv32) - InvariantResult [Line: 392]: Loop Invariant Derived loop invariant: (((((waterLevel == tmp && waterLevel == \result) && ((0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((0bv32 == pumpRunning && 2bv32 == waterLevel) && 0bv32 == \result) && splverifierCounter == 0bv32)) || (((1bv32 == pumpRunning && 2bv32 == waterLevel) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32)) || ((2bv32 == waterLevel && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32))) || ((splverifierCounter == 0bv32 && 0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 418]: Loop Invariant Derived loop invariant: (((0bv32 == pumpRunning && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || (((1bv32 == pumpRunning && 2bv32 == waterLevel) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32)) || ((2bv32 == waterLevel && 0bv32 == pumpRunning) && splverifierCounter == 0bv32) - InvariantResult [Line: 464]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 169]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 954]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: (((((~bvadd64(waterLevel, 4294967295bv32) == 0bv32 && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32)) || (((0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || (((0bv32 == pumpRunning && 2bv32 == waterLevel) && 0bv32 == \result) && splverifierCounter == 0bv32)) || (((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || ((2bv32 == waterLevel && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32)) - InvariantResult [Line: 911]: Loop Invariant Derived loop invariant: ((((waterLevel == \result && ((0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (waterLevel == \result && (~bvadd64(waterLevel, 4294967295bv32) == 0bv32 && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32))) || (((2bv32 == waterLevel && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32)) && 2bv32 == \result)) || ((((1bv32 == pumpRunning && 2bv32 == waterLevel) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) && 2bv32 == \result)) || ((((0bv32 == pumpRunning && 2bv32 == waterLevel) && 0bv32 == \result) && splverifierCounter == 0bv32) && 2bv32 == \result) - InvariantResult [Line: 279]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 911]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 911]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 348]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 381]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 214]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 169]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 934]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 214]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 169]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 214]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 169]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 214]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 169]: Loop Invariant Derived loop invariant: ((((waterLevel == tmp && waterLevel == \result) && 0bv32 == pumpRunning) && 0bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32 - InvariantResult [Line: 214]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 169]: Loop Invariant Derived loop invariant: ((((0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || ((((1bv32 == pumpRunning && 1bv32 == \result) && !(systemActive == 0bv32)) && 2bv32 == waterLevel) && splverifierCounter == 0bv32)) || (((0bv32 == pumpRunning && 2bv32 == waterLevel) && 0bv32 == \result) && splverifierCounter == 0bv32) - InvariantResult [Line: 214]: Loop Invariant Derived loop invariant: (~bvadd64(waterLevel, 4294967295bv32) == 0bv32 && ((((!(tmp == 0bv32) && 0bv32 == pumpRunning) && !(systemActive == 0bv32)) && \result == 0bv32) && tmp___0 == 0bv32) && splverifierCounter == 0bv32) || (((0bv32 == pumpRunning && 2bv32 == waterLevel) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 128 locations, 3 error locations. Result: SAFE, OverallTime: 27.5s, OverallIterations: 16, TraceHistogramMax: 4, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 14.1s, HoareTripleCheckerStatistics: 2458 SDtfs, 4495 SDslu, 5134 SDs, 0 SdLazy, 892 SolverSat, 223 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2647 GetRequests, 2522 SyntacticMatches, 4 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=625occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 16 MinimizatonAttempts, 3446 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 51 LocationsWithAnnotation, 51 PreInvPairs, 243 NumberOfFragments, 936 HoareAnnotationTreeSize, 51 FomulaSimplifications, 29495147 FormulaSimplificationTreeSizeReduction, 3.6s HoareSimplificationTime, 51 FomulaSimplificationsInter, 1856583 FormulaSimplificationTreeSizeReductionInter, 10.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 1308 NumberOfCodeBlocks, 1308 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 2576 ConstructedInterpolants, 0 QuantifiedInterpolants, 452537 SizeOfPredicates, 73 NumberOfNonLiveVariables, 4854 ConjunctsInSsa, 108 ConjunctsInUnsatCore, 40 InterpolantComputations, 26 PerfectInterpolantSequences, 1884/2084 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...