./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product58.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_166286c7-7187-49f7-a6c5-b5e124635724/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product58.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/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 e8e2fe939766c7a542c760a74550866c5b83d51d .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_166286c7-7187-49f7-a6c5-b5e124635724/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product58.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/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 e8e2fe939766c7a542c760a74550866c5b83d51d ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 11:21:35,374 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:21:35,376 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:21:35,385 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:21:35,386 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:21:35,387 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:21:35,388 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:21:35,390 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:21:35,392 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:21:35,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:21:35,396 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:21:35,397 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:21:35,403 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:21:35,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:21:35,406 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:21:35,407 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:21:35,407 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:21:35,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:21:35,409 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:21:35,413 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:21:35,414 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:21:35,417 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:21:35,418 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:21:35,421 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:21:35,422 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:21:35,422 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:21:35,422 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:21:35,423 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:21:35,423 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:21:35,424 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:21:35,424 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:21:35,424 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:21:35,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:21:35,425 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:21:35,429 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:21:35,429 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:21:35,430 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:21:35,430 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:21:35,431 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:21:35,431 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:21:35,433 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:21:35,434 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:21:35,443 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:21:35,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:21:35,444 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:21:35,444 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:21:35,444 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:21:35,444 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:21:35,445 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:21:35,445 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:21:35,445 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:21:35,445 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:21:35,445 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:21:35,445 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:21:35,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:21:35,446 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:21:35,447 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:21:35,447 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:21:35,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:21:35,447 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:21:35,447 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:21:35,447 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:21:35,447 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:21:35,448 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:21:35,448 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:21:35,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:21:35,448 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:21:35,448 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:21:35,448 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:21:35,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:21:35,449 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:21:35,449 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:21:35,449 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:21:35,449 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:21:35,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:21:35,450 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:21:35,450 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:21:35,450 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_166286c7-7187-49f7-a6c5-b5e124635724/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 -> e8e2fe939766c7a542c760a74550866c5b83d51d [2019-10-22 11:21:35,482 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:21:35,492 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:21:35,496 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:21:35,497 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:21:35,497 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:21:35,498 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec5_product58.cil.c [2019-10-22 11:21:35,544 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/bin/utaipan/data/d5d4e30c6/f62adcfd08dc438a9ffc000f9b379335/FLAGfa61d2095 [2019-10-22 11:21:36,016 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:21:36,017 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/sv-benchmarks/c/product-lines/minepump_spec5_product58.cil.c [2019-10-22 11:21:36,031 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/bin/utaipan/data/d5d4e30c6/f62adcfd08dc438a9ffc000f9b379335/FLAGfa61d2095 [2019-10-22 11:21:36,528 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/bin/utaipan/data/d5d4e30c6/f62adcfd08dc438a9ffc000f9b379335 [2019-10-22 11:21:36,531 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:21:36,533 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:21:36,533 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:36,533 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:21:36,542 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:21:36,543 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:36" (1/1) ... [2019-10-22 11:21:36,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64129687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:36, skipping insertion in model container [2019-10-22 11:21:36,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:36" (1/1) ... [2019-10-22 11:21:36,552 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:21:36,586 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:21:36,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:36,986 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:21:37,105 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:37,131 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:21:37,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:37 WrapperNode [2019-10-22 11:21:37,131 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:37,132 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:37,132 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:21:37,132 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:21:37,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:37" (1/1) ... [2019-10-22 11:21:37,153 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:37" (1/1) ... [2019-10-22 11:21:37,200 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:37,200 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:21:37,201 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:21:37,201 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:21:37,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:37" (1/1) ... [2019-10-22 11:21:37,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:37" (1/1) ... [2019-10-22 11:21:37,213 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:37" (1/1) ... [2019-10-22 11:21:37,213 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:37" (1/1) ... [2019-10-22 11:21:37,224 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:37" (1/1) ... [2019-10-22 11:21:37,232 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:37" (1/1) ... [2019-10-22 11:21:37,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:37" (1/1) ... [2019-10-22 11:21:37,239 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:21:37,239 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:21:37,240 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:21:37,240 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:21:37,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/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 11:21:37,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:21:37,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 11:21:37,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:21:37,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:21:38,089 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:21:38,089 INFO L284 CfgBuilder]: Removed 208 assume(true) statements. [2019-10-22 11:21:38,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:38 BoogieIcfgContainer [2019-10-22 11:21:38,091 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:21:38,092 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:21:38,092 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:21:38,095 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:21:38,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:21:36" (1/3) ... [2019-10-22 11:21:38,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ac9a2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:38, skipping insertion in model container [2019-10-22 11:21:38,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:37" (2/3) ... [2019-10-22 11:21:38,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ac9a2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:38, skipping insertion in model container [2019-10-22 11:21:38,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:38" (3/3) ... [2019-10-22 11:21:38,098 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product58.cil.c [2019-10-22 11:21:38,108 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:21:38,118 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:21:38,130 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:21:38,167 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:21:38,168 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:21:38,168 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:21:38,168 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:21:38,168 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:21:38,168 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:21:38,168 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:21:38,169 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:21:38,187 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states. [2019-10-22 11:21:38,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:21:38,195 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:38,196 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 11:21:38,198 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:38,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:38,206 INFO L82 PathProgramCache]: Analyzing trace with hash -2088069929, now seen corresponding path program 1 times [2019-10-22 11:21:38,214 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:38,214 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127757338] [2019-10-22 11:21:38,215 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:38,215 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:38,215 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:38,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:38,419 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 11:21:38,419 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127757338] [2019-10-22 11:21:38,420 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:38,420 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:21:38,421 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330510895] [2019-10-22 11:21:38,424 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:21:38,426 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:38,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:21:38,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:21:38,441 INFO L87 Difference]: Start difference. First operand 144 states. Second operand 2 states. [2019-10-22 11:21:38,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:38,474 INFO L93 Difference]: Finished difference Result 281 states and 418 transitions. [2019-10-22 11:21:38,474 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:21:38,475 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2019-10-22 11:21:38,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:38,486 INFO L225 Difference]: With dead ends: 281 [2019-10-22 11:21:38,486 INFO L226 Difference]: Without dead ends: 140 [2019-10-22 11:21:38,490 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 11:21:38,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2019-10-22 11:21:38,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2019-10-22 11:21:38,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-10-22 11:21:38,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 201 transitions. [2019-10-22 11:21:38,533 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 201 transitions. Word has length 19 [2019-10-22 11:21:38,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:38,533 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 201 transitions. [2019-10-22 11:21:38,533 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:21:38,534 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 201 transitions. [2019-10-22 11:21:38,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 11:21:38,534 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:38,535 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 11:21:38,535 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:38,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:38,536 INFO L82 PathProgramCache]: Analyzing trace with hash -282050376, now seen corresponding path program 1 times [2019-10-22 11:21:38,536 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:38,536 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395272169] [2019-10-22 11:21:38,536 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:38,537 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:38,537 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:38,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:38,620 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 11:21:38,620 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395272169] [2019-10-22 11:21:38,620 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:38,621 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:21:38,621 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792397966] [2019-10-22 11:21:38,622 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:21:38,623 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:38,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:21:38,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:38,623 INFO L87 Difference]: Start difference. First operand 140 states and 201 transitions. Second operand 3 states. [2019-10-22 11:21:38,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:38,642 INFO L93 Difference]: Finished difference Result 140 states and 201 transitions. [2019-10-22 11:21:38,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:38,643 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-10-22 11:21:38,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:38,644 INFO L225 Difference]: With dead ends: 140 [2019-10-22 11:21:38,644 INFO L226 Difference]: Without dead ends: 57 [2019-10-22 11:21:38,645 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 11:21:38,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-10-22 11:21:38,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2019-10-22 11:21:38,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-10-22 11:21:38,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 81 transitions. [2019-10-22 11:21:38,655 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 81 transitions. Word has length 20 [2019-10-22 11:21:38,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:38,656 INFO L462 AbstractCegarLoop]: Abstraction has 57 states and 81 transitions. [2019-10-22 11:21:38,656 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:21:38,656 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 81 transitions. [2019-10-22 11:21:38,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 11:21:38,657 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:38,657 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 11:21:38,657 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:38,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:38,657 INFO L82 PathProgramCache]: Analyzing trace with hash 699838073, now seen corresponding path program 1 times [2019-10-22 11:21:38,658 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:38,658 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671352682] [2019-10-22 11:21:38,660 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:38,660 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:38,661 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:38,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:38,791 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 11:21:38,791 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671352682] [2019-10-22 11:21:38,791 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:38,791 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:21:38,791 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253174436] [2019-10-22 11:21:38,792 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:21:38,792 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:38,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:21:38,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:38,793 INFO L87 Difference]: Start difference. First operand 57 states and 81 transitions. Second operand 3 states. [2019-10-22 11:21:38,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:38,816 INFO L93 Difference]: Finished difference Result 107 states and 155 transitions. [2019-10-22 11:21:38,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:38,816 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-10-22 11:21:38,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:38,817 INFO L225 Difference]: With dead ends: 107 [2019-10-22 11:21:38,817 INFO L226 Difference]: Without dead ends: 57 [2019-10-22 11:21:38,818 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 11:21:38,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-10-22 11:21:38,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2019-10-22 11:21:38,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-10-22 11:21:38,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 80 transitions. [2019-10-22 11:21:38,828 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 80 transitions. Word has length 26 [2019-10-22 11:21:38,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:38,829 INFO L462 AbstractCegarLoop]: Abstraction has 57 states and 80 transitions. [2019-10-22 11:21:38,829 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:21:38,829 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 80 transitions. [2019-10-22 11:21:38,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 11:21:38,830 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:38,830 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 11:21:38,830 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:38,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:38,830 INFO L82 PathProgramCache]: Analyzing trace with hash -649900478, now seen corresponding path program 1 times [2019-10-22 11:21:38,831 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:38,831 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654946560] [2019-10-22 11:21:38,831 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:38,831 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:38,831 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:38,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:38,928 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 11:21:38,928 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654946560] [2019-10-22 11:21:38,928 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:38,928 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:21:38,929 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865544044] [2019-10-22 11:21:38,929 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:21:38,929 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:38,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:21:38,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:38,930 INFO L87 Difference]: Start difference. First operand 57 states and 80 transitions. Second operand 3 states. [2019-10-22 11:21:38,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:38,990 INFO L93 Difference]: Finished difference Result 131 states and 187 transitions. [2019-10-22 11:21:38,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:38,991 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2019-10-22 11:21:38,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:38,992 INFO L225 Difference]: With dead ends: 131 [2019-10-22 11:21:38,992 INFO L226 Difference]: Without dead ends: 81 [2019-10-22 11:21:38,993 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 11:21:38,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2019-10-22 11:21:39,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 79. [2019-10-22 11:21:39,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-10-22 11:21:39,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 110 transitions. [2019-10-22 11:21:39,003 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 110 transitions. Word has length 28 [2019-10-22 11:21:39,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:39,003 INFO L462 AbstractCegarLoop]: Abstraction has 79 states and 110 transitions. [2019-10-22 11:21:39,003 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:21:39,004 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 110 transitions. [2019-10-22 11:21:39,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 11:21:39,004 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:39,004 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 11:21:39,005 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:39,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:39,005 INFO L82 PathProgramCache]: Analyzing trace with hash 33266286, now seen corresponding path program 1 times [2019-10-22 11:21:39,005 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:39,007 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626168859] [2019-10-22 11:21:39,007 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:39,007 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:39,007 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:39,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:39,101 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 11:21:39,101 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626168859] [2019-10-22 11:21:39,101 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:39,102 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:21:39,102 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769168836] [2019-10-22 11:21:39,102 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:21:39,103 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:39,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:21:39,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:21:39,103 INFO L87 Difference]: Start difference. First operand 79 states and 110 transitions. Second operand 5 states. [2019-10-22 11:21:39,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:39,259 INFO L93 Difference]: Finished difference Result 266 states and 375 transitions. [2019-10-22 11:21:39,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:21:39,260 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2019-10-22 11:21:39,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:39,262 INFO L225 Difference]: With dead ends: 266 [2019-10-22 11:21:39,262 INFO L226 Difference]: Without dead ends: 194 [2019-10-22 11:21:39,263 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 11:21:39,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2019-10-22 11:21:39,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 78. [2019-10-22 11:21:39,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-10-22 11:21:39,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 107 transitions. [2019-10-22 11:21:39,273 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 107 transitions. Word has length 34 [2019-10-22 11:21:39,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:39,274 INFO L462 AbstractCegarLoop]: Abstraction has 78 states and 107 transitions. [2019-10-22 11:21:39,274 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:21:39,274 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 107 transitions. [2019-10-22 11:21:39,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-22 11:21:39,275 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:39,275 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, 1, 1] [2019-10-22 11:21:39,275 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:39,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:39,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1851586710, now seen corresponding path program 1 times [2019-10-22 11:21:39,276 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:39,276 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734192481] [2019-10-22 11:21:39,276 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:39,276 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:39,276 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:39,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:39,348 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 11:21:39,349 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734192481] [2019-10-22 11:21:39,349 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:39,349 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:21:39,349 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172739975] [2019-10-22 11:21:39,350 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:21:39,350 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:39,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:21:39,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:21:39,351 INFO L87 Difference]: Start difference. First operand 78 states and 107 transitions. Second operand 5 states. [2019-10-22 11:21:39,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:39,430 INFO L93 Difference]: Finished difference Result 198 states and 272 transitions. [2019-10-22 11:21:39,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:21:39,432 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2019-10-22 11:21:39,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:39,433 INFO L225 Difference]: With dead ends: 198 [2019-10-22 11:21:39,434 INFO L226 Difference]: Without dead ends: 127 [2019-10-22 11:21:39,434 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 11:21:39,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2019-10-22 11:21:39,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 84. [2019-10-22 11:21:39,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2019-10-22 11:21:39,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 113 transitions. [2019-10-22 11:21:39,449 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 113 transitions. Word has length 37 [2019-10-22 11:21:39,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:39,450 INFO L462 AbstractCegarLoop]: Abstraction has 84 states and 113 transitions. [2019-10-22 11:21:39,450 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:21:39,450 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 113 transitions. [2019-10-22 11:21:39,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-22 11:21:39,451 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:39,451 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, 1, 1] [2019-10-22 11:21:39,451 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:39,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:39,452 INFO L82 PathProgramCache]: Analyzing trace with hash 840469460, now seen corresponding path program 1 times [2019-10-22 11:21:39,452 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:39,452 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988660684] [2019-10-22 11:21:39,452 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:39,452 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:39,452 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:39,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:39,524 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 11:21:39,524 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988660684] [2019-10-22 11:21:39,524 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:39,524 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:21:39,525 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158863587] [2019-10-22 11:21:39,525 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:21:39,525 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:39,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:21:39,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:21:39,527 INFO L87 Difference]: Start difference. First operand 84 states and 113 transitions. Second operand 5 states. [2019-10-22 11:21:39,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:39,615 INFO L93 Difference]: Finished difference Result 215 states and 289 transitions. [2019-10-22 11:21:39,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:21:39,615 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2019-10-22 11:21:39,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:39,616 INFO L225 Difference]: With dead ends: 215 [2019-10-22 11:21:39,616 INFO L226 Difference]: Without dead ends: 138 [2019-10-22 11:21:39,617 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:21:39,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2019-10-22 11:21:39,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 88. [2019-10-22 11:21:39,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-10-22 11:21:39,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 117 transitions. [2019-10-22 11:21:39,632 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 117 transitions. Word has length 37 [2019-10-22 11:21:39,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:39,633 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 117 transitions. [2019-10-22 11:21:39,633 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:21:39,633 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 117 transitions. [2019-10-22 11:21:39,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-22 11:21:39,640 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:39,640 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, 1, 1] [2019-10-22 11:21:39,640 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:39,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:39,641 INFO L82 PathProgramCache]: Analyzing trace with hash -180598894, now seen corresponding path program 1 times [2019-10-22 11:21:39,641 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:39,641 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394144724] [2019-10-22 11:21:39,641 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:39,641 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:39,642 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:39,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:39,685 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 11:21:39,685 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394144724] [2019-10-22 11:21:39,685 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:39,686 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:21:39,686 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575902453] [2019-10-22 11:21:39,686 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:21:39,686 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:39,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:21:39,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:39,687 INFO L87 Difference]: Start difference. First operand 88 states and 117 transitions. Second operand 3 states. [2019-10-22 11:21:39,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:39,712 INFO L93 Difference]: Finished difference Result 197 states and 263 transitions. [2019-10-22 11:21:39,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:39,713 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2019-10-22 11:21:39,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:39,714 INFO L225 Difference]: With dead ends: 197 [2019-10-22 11:21:39,714 INFO L226 Difference]: Without dead ends: 116 [2019-10-22 11:21:39,714 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 11:21:39,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2019-10-22 11:21:39,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2019-10-22 11:21:39,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2019-10-22 11:21:39,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 151 transitions. [2019-10-22 11:21:39,725 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 151 transitions. Word has length 37 [2019-10-22 11:21:39,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:39,725 INFO L462 AbstractCegarLoop]: Abstraction has 116 states and 151 transitions. [2019-10-22 11:21:39,725 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:21:39,725 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 151 transitions. [2019-10-22 11:21:39,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-22 11:21:39,727 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:39,727 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, 1, 1, 1] [2019-10-22 11:21:39,727 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:39,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:39,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1355199058, now seen corresponding path program 1 times [2019-10-22 11:21:39,727 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:39,728 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213185978] [2019-10-22 11:21:39,728 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:39,728 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:39,728 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:39,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:39,806 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 11:21:39,807 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213185978] [2019-10-22 11:21:39,807 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:39,807 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:21:39,807 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366297234] [2019-10-22 11:21:39,808 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:21:39,808 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:39,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:21:39,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:21:39,808 INFO L87 Difference]: Start difference. First operand 116 states and 151 transitions. Second operand 6 states. [2019-10-22 11:21:40,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:40,007 INFO L93 Difference]: Finished difference Result 437 states and 583 transitions. [2019-10-22 11:21:40,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:21:40,008 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2019-10-22 11:21:40,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:40,009 INFO L225 Difference]: With dead ends: 437 [2019-10-22 11:21:40,009 INFO L226 Difference]: Without dead ends: 356 [2019-10-22 11:21:40,010 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2019-10-22 11:21:40,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2019-10-22 11:21:40,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 161. [2019-10-22 11:21:40,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2019-10-22 11:21:40,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 207 transitions. [2019-10-22 11:21:40,030 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 207 transitions. Word has length 38 [2019-10-22 11:21:40,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:40,031 INFO L462 AbstractCegarLoop]: Abstraction has 161 states and 207 transitions. [2019-10-22 11:21:40,031 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:21:40,031 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 207 transitions. [2019-10-22 11:21:40,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-10-22 11:21:40,032 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:40,033 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, 1, 1, 1] [2019-10-22 11:21:40,033 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:40,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:40,033 INFO L82 PathProgramCache]: Analyzing trace with hash 730179745, now seen corresponding path program 1 times [2019-10-22 11:21:40,033 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:40,034 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983630837] [2019-10-22 11:21:40,034 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:40,034 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:40,034 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:40,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:40,136 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 11:21:40,136 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983630837] [2019-10-22 11:21:40,137 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918163593] [2019-10-22 11:21:40,137 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/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 11:21:40,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:40,272 INFO L256 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:21:40,277 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:40,329 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 11:21:40,330 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:40,357 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 11:21:40,360 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1806496948] [2019-10-22 11:21:40,366 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 62 [2019-10-22 11:21:40,418 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-10-22 11:21:40,418 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-22 11:21:40,844 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:21:40,845 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 11:21:40,850 INFO L168 Benchmark]: Toolchain (without parser) took 4317.38 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 251.1 MB). Free memory was 944.5 MB in the beginning and 1.2 GB in the end (delta: -207.0 MB). Peak memory consumption was 44.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:40,851 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:40,851 INFO L168 Benchmark]: CACSL2BoogieTranslator took 598.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.2 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -198.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:40,851 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.22 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 11:21:40,852 INFO L168 Benchmark]: Boogie Preprocessor took 38.75 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:40,853 INFO L168 Benchmark]: RCFGBuilder took 851.46 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: 77.0 MB). Peak memory consumption was 77.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:40,853 INFO L168 Benchmark]: TraceAbstraction took 2757.03 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 83.9 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -92.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:40,857 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 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 598.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.2 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -198.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 68.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.75 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 851.46 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: 77.0 MB). Peak memory consumption was 77.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2757.03 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 83.9 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -92.8 MB). There was no memory consumed. 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 11:21:42,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:21:42,907 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:21:42,916 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:21:42,916 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:21:42,917 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:21:42,918 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:21:42,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:21:42,921 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:21:42,921 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:21:42,922 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:21:42,923 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:21:42,923 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:21:42,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:21:42,924 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:21:42,925 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:21:42,926 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:21:42,927 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:21:42,928 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:21:42,930 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:21:42,931 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:21:42,932 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:21:42,933 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:21:42,934 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:21:42,935 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:21:42,936 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:21:42,936 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:21:42,936 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:21:42,937 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:21:42,937 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:21:42,938 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:21:42,938 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:21:42,939 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:21:42,940 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:21:42,940 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:21:42,941 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:21:42,941 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:21:42,941 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:21:42,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:21:42,942 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:21:42,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:21:42,944 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:21:42,954 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:21:42,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:21:42,955 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:21:42,956 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:21:42,956 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:21:42,956 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:21:42,956 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:21:42,956 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:21:42,956 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:21:42,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:21:42,957 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:21:42,957 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:21:42,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:21:42,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:21:42,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:21:42,957 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:21:42,958 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:21:42,958 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:21:42,958 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:21:42,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:21:42,958 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:21:42,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:21:42,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:21:42,959 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:21:42,959 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:21:42,959 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:21:42,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:21:42,959 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:21:42,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:21:42,960 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:21:42,960 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:21:42,960 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:21:42,960 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:21:42,960 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:21:42,960 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_166286c7-7187-49f7-a6c5-b5e124635724/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 -> e8e2fe939766c7a542c760a74550866c5b83d51d [2019-10-22 11:21:42,986 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:21:42,997 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:21:43,004 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:21:43,006 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:21:43,006 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:21:43,006 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec5_product58.cil.c [2019-10-22 11:21:43,060 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/bin/utaipan/data/9d7c58685/60b03007d598445bac415fed3bf3f7a3/FLAG25fa55baf [2019-10-22 11:21:43,487 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:21:43,488 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/sv-benchmarks/c/product-lines/minepump_spec5_product58.cil.c [2019-10-22 11:21:43,500 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/bin/utaipan/data/9d7c58685/60b03007d598445bac415fed3bf3f7a3/FLAG25fa55baf [2019-10-22 11:21:43,513 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/bin/utaipan/data/9d7c58685/60b03007d598445bac415fed3bf3f7a3 [2019-10-22 11:21:43,517 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:21:43,518 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:21:43,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:43,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:21:43,526 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:21:43,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:43" (1/1) ... [2019-10-22 11:21:43,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e61d2e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:43, skipping insertion in model container [2019-10-22 11:21:43,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:43" (1/1) ... [2019-10-22 11:21:43,539 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:21:43,591 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:21:44,017 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:44,042 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:21:44,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:44,180 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:21:44,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:44 WrapperNode [2019-10-22 11:21:44,180 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:44,181 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:44,181 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:21:44,181 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:21:44,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:44" (1/1) ... [2019-10-22 11:21:44,211 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:44" (1/1) ... [2019-10-22 11:21:44,256 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:44,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:21:44,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:21:44,257 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:21:44,266 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:44" (1/1) ... [2019-10-22 11:21:44,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:44" (1/1) ... [2019-10-22 11:21:44,270 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:44" (1/1) ... [2019-10-22 11:21:44,271 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:44" (1/1) ... [2019-10-22 11:21:44,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:44" (1/1) ... [2019-10-22 11:21:44,291 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:44" (1/1) ... [2019-10-22 11:21:44,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:44" (1/1) ... [2019-10-22 11:21:44,299 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:21:44,299 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:21:44,299 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:21:44,299 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:21:44,300 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/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 11:21:44,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:21:44,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-10-22 11:21:44,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:21:44,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:21:45,390 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:21:45,390 INFO L284 CfgBuilder]: Removed 208 assume(true) statements. [2019-10-22 11:21:45,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:45 BoogieIcfgContainer [2019-10-22 11:21:45,391 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:21:45,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:21:45,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:21:45,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:21:45,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:21:43" (1/3) ... [2019-10-22 11:21:45,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43a53871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:45, skipping insertion in model container [2019-10-22 11:21:45,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:44" (2/3) ... [2019-10-22 11:21:45,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43a53871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:45, skipping insertion in model container [2019-10-22 11:21:45,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:45" (3/3) ... [2019-10-22 11:21:45,397 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product58.cil.c [2019-10-22 11:21:45,407 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:21:45,415 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:21:45,424 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:21:45,446 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:21:45,446 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:21:45,446 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:21:45,446 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:21:45,446 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:21:45,447 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:21:45,447 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:21:45,447 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:21:45,460 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states. [2019-10-22 11:21:45,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:21:45,466 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:45,467 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 11:21:45,468 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:45,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:45,472 INFO L82 PathProgramCache]: Analyzing trace with hash -2088069929, now seen corresponding path program 1 times [2019-10-22 11:21:45,481 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:45,481 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1065015031] [2019-10-22 11:21:45,482 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/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 11:21:45,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:45,652 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-22 11:21:45,657 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:45,671 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 11:21:45,671 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:45,676 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 11:21:45,683 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1065015031] [2019-10-22 11:21:45,683 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:45,684 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 11:21:45,684 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685263920] [2019-10-22 11:21:45,688 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:21:45,688 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:45,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:21:45,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:21:45,719 INFO L87 Difference]: Start difference. First operand 144 states. Second operand 2 states. [2019-10-22 11:21:45,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:45,783 INFO L93 Difference]: Finished difference Result 281 states and 418 transitions. [2019-10-22 11:21:45,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:21:45,784 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2019-10-22 11:21:45,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:45,815 INFO L225 Difference]: With dead ends: 281 [2019-10-22 11:21:45,815 INFO L226 Difference]: Without dead ends: 140 [2019-10-22 11:21:45,819 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 11:21:45,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2019-10-22 11:21:45,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2019-10-22 11:21:45,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-10-22 11:21:45,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 201 transitions. [2019-10-22 11:21:45,866 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 201 transitions. Word has length 19 [2019-10-22 11:21:45,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:45,866 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 201 transitions. [2019-10-22 11:21:45,867 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:21:45,867 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 201 transitions. [2019-10-22 11:21:45,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 11:21:45,868 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:45,868 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 11:21:46,069 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:46,069 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:46,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:46,070 INFO L82 PathProgramCache]: Analyzing trace with hash -282050376, now seen corresponding path program 1 times [2019-10-22 11:21:46,071 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:46,071 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [854562543] [2019-10-22 11:21:46,071 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/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 11:21:46,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:46,220 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:21:46,222 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:46,241 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 11:21:46,241 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:46,252 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 11:21:46,252 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [854562543] [2019-10-22 11:21:46,252 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:46,253 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-10-22 11:21:46,253 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895745043] [2019-10-22 11:21:46,254 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:21:46,255 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:46,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:21:46,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:46,256 INFO L87 Difference]: Start difference. First operand 140 states and 201 transitions. Second operand 4 states. [2019-10-22 11:21:46,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:46,298 INFO L93 Difference]: Finished difference Result 273 states and 395 transitions. [2019-10-22 11:21:46,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:46,299 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2019-10-22 11:21:46,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:46,300 INFO L225 Difference]: With dead ends: 273 [2019-10-22 11:21:46,300 INFO L226 Difference]: Without dead ends: 140 [2019-10-22 11:21:46,302 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 11:21:46,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2019-10-22 11:21:46,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2019-10-22 11:21:46,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-10-22 11:21:46,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 198 transitions. [2019-10-22 11:21:46,317 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 198 transitions. Word has length 20 [2019-10-22 11:21:46,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:46,318 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 198 transitions. [2019-10-22 11:21:46,318 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:21:46,318 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 198 transitions. [2019-10-22 11:21:46,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 11:21:46,319 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:46,319 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 11:21:46,520 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:46,520 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:46,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:46,520 INFO L82 PathProgramCache]: Analyzing trace with hash 648110465, now seen corresponding path program 1 times [2019-10-22 11:21:46,521 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:46,521 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [987927119] [2019-10-22 11:21:46,521 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/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 11:21:46,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:46,687 INFO L256 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:21:46,689 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:46,701 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 11:21:46,701 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:46,703 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 11:21:46,703 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [987927119] [2019-10-22 11:21:46,704 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:46,704 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-22 11:21:46,704 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131666787] [2019-10-22 11:21:46,705 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:21:46,705 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:46,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:21:46,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:46,705 INFO L87 Difference]: Start difference. First operand 140 states and 198 transitions. Second operand 3 states. [2019-10-22 11:21:46,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:46,882 INFO L93 Difference]: Finished difference Result 328 states and 463 transitions. [2019-10-22 11:21:46,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:46,883 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2019-10-22 11:21:46,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:46,884 INFO L225 Difference]: With dead ends: 328 [2019-10-22 11:21:46,885 INFO L226 Difference]: Without dead ends: 195 [2019-10-22 11:21:46,885 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 11:21:46,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2019-10-22 11:21:46,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 189. [2019-10-22 11:21:46,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2019-10-22 11:21:46,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 260 transitions. [2019-10-22 11:21:46,914 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 260 transitions. Word has length 22 [2019-10-22 11:21:46,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:46,915 INFO L462 AbstractCegarLoop]: Abstraction has 189 states and 260 transitions. [2019-10-22 11:21:46,915 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:21:46,915 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 260 transitions. [2019-10-22 11:21:46,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 11:21:46,916 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:46,916 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 11:21:47,117 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:47,117 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:47,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:47,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1868713811, now seen corresponding path program 1 times [2019-10-22 11:21:47,118 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:47,118 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1003971951] [2019-10-22 11:21:47,119 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/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 11:21:47,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:47,252 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:21:47,253 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:47,276 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 11:21:47,276 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:47,285 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 11:21:47,285 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1003971951] [2019-10-22 11:21:47,286 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:47,286 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:21:47,286 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341378715] [2019-10-22 11:21:47,286 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:21:47,287 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:47,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:21:47,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:21:47,287 INFO L87 Difference]: Start difference. First operand 189 states and 260 transitions. Second operand 5 states. [2019-10-22 11:21:47,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:47,624 INFO L93 Difference]: Finished difference Result 648 states and 887 transitions. [2019-10-22 11:21:47,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:21:47,625 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2019-10-22 11:21:47,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:47,627 INFO L225 Difference]: With dead ends: 648 [2019-10-22 11:21:47,628 INFO L226 Difference]: Without dead ends: 466 [2019-10-22 11:21:47,629 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 54 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 11:21:47,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2019-10-22 11:21:47,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 186. [2019-10-22 11:21:47,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2019-10-22 11:21:47,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 251 transitions. [2019-10-22 11:21:47,661 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 251 transitions. Word has length 28 [2019-10-22 11:21:47,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:47,662 INFO L462 AbstractCegarLoop]: Abstraction has 186 states and 251 transitions. [2019-10-22 11:21:47,662 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:21:47,662 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 251 transitions. [2019-10-22 11:21:47,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 11:21:47,663 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:47,663 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] [2019-10-22 11:21:47,865 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:47,865 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:47,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:47,865 INFO L82 PathProgramCache]: Analyzing trace with hash -828749347, now seen corresponding path program 1 times [2019-10-22 11:21:47,866 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:47,866 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [729636253] [2019-10-22 11:21:47,866 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/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 11:21:48,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:48,037 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:21:48,039 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:48,060 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 11:21:48,060 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:48,066 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 11:21:48,067 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [729636253] [2019-10-22 11:21:48,068 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:48,068 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:21:48,068 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906212217] [2019-10-22 11:21:48,068 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:21:48,069 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:48,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:21:48,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:21:48,069 INFO L87 Difference]: Start difference. First operand 186 states and 251 transitions. Second operand 5 states. [2019-10-22 11:21:48,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:48,230 INFO L93 Difference]: Finished difference Result 478 states and 634 transitions. [2019-10-22 11:21:48,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:21:48,230 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-10-22 11:21:48,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:48,231 INFO L225 Difference]: With dead ends: 478 [2019-10-22 11:21:48,232 INFO L226 Difference]: Without dead ends: 299 [2019-10-22 11:21:48,233 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 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 11:21:48,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2019-10-22 11:21:48,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 204. [2019-10-22 11:21:48,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2019-10-22 11:21:48,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 269 transitions. [2019-10-22 11:21:48,250 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 269 transitions. Word has length 31 [2019-10-22 11:21:48,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:48,251 INFO L462 AbstractCegarLoop]: Abstraction has 204 states and 269 transitions. [2019-10-22 11:21:48,251 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:21:48,251 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 269 transitions. [2019-10-22 11:21:48,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 11:21:48,252 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:48,254 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] [2019-10-22 11:21:48,458 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:48,458 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:48,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:48,459 INFO L82 PathProgramCache]: Analyzing trace with hash -1839866597, now seen corresponding path program 1 times [2019-10-22 11:21:48,459 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:48,459 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2085837343] [2019-10-22 11:21:48,459 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/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 11:21:48,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:48,629 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:21:48,630 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:48,641 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 11:21:48,641 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:48,655 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 11:21:48,655 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2085837343] [2019-10-22 11:21:48,656 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:48,656 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-10-22 11:21:48,656 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213952592] [2019-10-22 11:21:48,656 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:21:48,656 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:48,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:21:48,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:21:48,657 INFO L87 Difference]: Start difference. First operand 204 states and 269 transitions. Second operand 6 states. [2019-10-22 11:21:48,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:48,806 INFO L93 Difference]: Finished difference Result 529 states and 685 transitions. [2019-10-22 11:21:48,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:21:48,807 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-10-22 11:21:48,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:48,808 INFO L225 Difference]: With dead ends: 529 [2019-10-22 11:21:48,808 INFO L226 Difference]: Without dead ends: 332 [2019-10-22 11:21:48,809 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 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 11:21:48,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2019-10-22 11:21:48,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 216. [2019-10-22 11:21:48,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2019-10-22 11:21:48,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 281 transitions. [2019-10-22 11:21:48,835 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 281 transitions. Word has length 31 [2019-10-22 11:21:48,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:48,835 INFO L462 AbstractCegarLoop]: Abstraction has 216 states and 281 transitions. [2019-10-22 11:21:48,835 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:21:48,835 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 281 transitions. [2019-10-22 11:21:48,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 11:21:48,837 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:48,838 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] [2019-10-22 11:21:49,038 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:49,039 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:49,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:49,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1434032345, now seen corresponding path program 1 times [2019-10-22 11:21:49,039 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:49,040 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [523335118] [2019-10-22 11:21:49,040 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/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 11:21:49,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:49,287 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:21:49,288 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:49,302 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 11:21:49,302 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:49,316 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 11:21:49,316 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [523335118] [2019-10-22 11:21:49,316 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:49,316 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-10-22 11:21:49,316 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666101349] [2019-10-22 11:21:49,317 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:21:49,317 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:49,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:21:49,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:49,317 INFO L87 Difference]: Start difference. First operand 216 states and 281 transitions. Second operand 4 states. [2019-10-22 11:21:49,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:49,328 INFO L93 Difference]: Finished difference Result 216 states and 281 transitions. [2019-10-22 11:21:49,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:49,329 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-10-22 11:21:49,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:49,331 INFO L225 Difference]: With dead ends: 216 [2019-10-22 11:21:49,331 INFO L226 Difference]: Without dead ends: 88 [2019-10-22 11:21:49,332 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 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 11:21:49,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2019-10-22 11:21:49,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2019-10-22 11:21:49,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-10-22 11:21:49,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 117 transitions. [2019-10-22 11:21:49,340 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 117 transitions. Word has length 31 [2019-10-22 11:21:49,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:49,341 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 117 transitions. [2019-10-22 11:21:49,341 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:21:49,341 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 117 transitions. [2019-10-22 11:21:49,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-22 11:21:49,345 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:49,345 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, 1, 1] [2019-10-22 11:21:49,546 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:49,547 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:49,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:49,547 INFO L82 PathProgramCache]: Analyzing trace with hash -180598894, now seen corresponding path program 1 times [2019-10-22 11:21:49,548 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:49,548 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [180402801] [2019-10-22 11:21:49,548 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/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 11:21:49,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:49,809 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:21:49,811 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:49,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:49,818 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:49,834 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 11:21:49,834 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [180402801] [2019-10-22 11:21:49,834 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:49,835 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-10-22 11:21:49,835 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236897128] [2019-10-22 11:21:49,835 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:21:49,835 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:49,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:21:49,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:49,836 INFO L87 Difference]: Start difference. First operand 88 states and 117 transitions. Second operand 4 states. [2019-10-22 11:21:49,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:49,894 INFO L93 Difference]: Finished difference Result 258 states and 347 transitions. [2019-10-22 11:21:49,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:21:49,895 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2019-10-22 11:21:49,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:49,896 INFO L225 Difference]: With dead ends: 258 [2019-10-22 11:21:49,896 INFO L226 Difference]: Without dead ends: 177 [2019-10-22 11:21:49,896 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 70 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 11:21:49,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2019-10-22 11:21:49,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 147. [2019-10-22 11:21:49,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2019-10-22 11:21:49,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 196 transitions. [2019-10-22 11:21:49,913 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 196 transitions. Word has length 37 [2019-10-22 11:21:49,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:49,914 INFO L462 AbstractCegarLoop]: Abstraction has 147 states and 196 transitions. [2019-10-22 11:21:49,914 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:21:49,914 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 196 transitions. [2019-10-22 11:21:49,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-22 11:21:49,915 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:49,915 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, 1, 1, 1] [2019-10-22 11:21:50,116 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:50,116 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:50,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:50,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1355199058, now seen corresponding path program 1 times [2019-10-22 11:21:50,117 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:50,117 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1619636687] [2019-10-22 11:21:50,117 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/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 11:21:50,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:50,279 INFO L256 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:21:50,280 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:50,314 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 11:21:50,314 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:50,319 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 11:21:50,319 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1619636687] [2019-10-22 11:21:50,319 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:50,320 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:21:50,320 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770218670] [2019-10-22 11:21:50,320 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:21:50,320 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:50,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:21:50,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:21:50,321 INFO L87 Difference]: Start difference. First operand 147 states and 196 transitions. Second operand 6 states. [2019-10-22 11:21:50,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:50,692 INFO L93 Difference]: Finished difference Result 714 states and 962 transitions. [2019-10-22 11:21:50,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-22 11:21:50,693 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2019-10-22 11:21:50,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:50,695 INFO L225 Difference]: With dead ends: 714 [2019-10-22 11:21:50,695 INFO L226 Difference]: Without dead ends: 574 [2019-10-22 11:21:50,695 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 70 SyntacticMatches, 0 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 11:21:50,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2019-10-22 11:21:50,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 260. [2019-10-22 11:21:50,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2019-10-22 11:21:50,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 342 transitions. [2019-10-22 11:21:50,721 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 342 transitions. Word has length 38 [2019-10-22 11:21:50,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:50,721 INFO L462 AbstractCegarLoop]: Abstraction has 260 states and 342 transitions. [2019-10-22 11:21:50,721 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:21:50,721 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 342 transitions. [2019-10-22 11:21:50,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-10-22 11:21:50,722 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:50,722 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, 1, 1, 1] [2019-10-22 11:21:50,923 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:50,923 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:50,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:50,923 INFO L82 PathProgramCache]: Analyzing trace with hash 730179745, now seen corresponding path program 1 times [2019-10-22 11:21:50,924 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:50,924 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1126057860] [2019-10-22 11:21:50,924 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/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 11:21:51,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:51,048 INFO L256 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 11:21:51,050 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:51,079 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 11:21:51,079 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:51,109 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 11:21:51,109 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1126057860] [2019-10-22 11:21:51,109 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [455035081] [2019-10-22 11:21:51,109 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/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 11:21:51,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:51,216 INFO L256 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:21:51,218 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:51,226 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 11:21:51,226 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:51,235 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 11:21:51,235 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-22 11:21:51,235 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5] total 9 [2019-10-22 11:21:51,235 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94900550] [2019-10-22 11:21:51,236 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 11:21:51,236 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:51,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 11:21:51,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:21:51,237 INFO L87 Difference]: Start difference. First operand 260 states and 342 transitions. Second operand 9 states. [2019-10-22 11:21:51,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:51,632 INFO L93 Difference]: Finished difference Result 646 states and 874 transitions. [2019-10-22 11:21:51,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:21:51,633 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 61 [2019-10-22 11:21:51,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:51,634 INFO L225 Difference]: With dead ends: 646 [2019-10-22 11:21:51,634 INFO L226 Difference]: Without dead ends: 393 [2019-10-22 11:21:51,635 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2019-10-22 11:21:51,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2019-10-22 11:21:51,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 242. [2019-10-22 11:21:51,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2019-10-22 11:21:51,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 310 transitions. [2019-10-22 11:21:51,658 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 310 transitions. Word has length 61 [2019-10-22 11:21:51,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:51,658 INFO L462 AbstractCegarLoop]: Abstraction has 242 states and 310 transitions. [2019-10-22 11:21:51,658 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 11:21:51,659 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 310 transitions. [2019-10-22 11:21:51,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-10-22 11:21:51,659 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:51,659 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:52,060 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 11:21:52,060 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:52,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:52,061 INFO L82 PathProgramCache]: Analyzing trace with hash 2022810208, now seen corresponding path program 1 times [2019-10-22 11:21:52,061 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:52,061 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1396361498] [2019-10-22 11:21:52,061 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/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 11:21:52,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:52,204 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:21:52,207 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:52,235 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-22 11:21:52,236 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:52,248 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-22 11:21:52,248 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1396361498] [2019-10-22 11:21:52,248 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:52,248 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:21:52,248 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343685294] [2019-10-22 11:21:52,249 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:21:52,249 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:52,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:21:52,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:21:52,249 INFO L87 Difference]: Start difference. First operand 242 states and 310 transitions. Second operand 5 states. [2019-10-22 11:21:52,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:52,315 INFO L93 Difference]: Finished difference Result 596 states and 774 transitions. [2019-10-22 11:21:52,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:21:52,315 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2019-10-22 11:21:52,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:52,318 INFO L225 Difference]: With dead ends: 596 [2019-10-22 11:21:52,318 INFO L226 Difference]: Without dead ends: 361 [2019-10-22 11:21:52,319 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 214 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 11:21:52,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2019-10-22 11:21:52,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 251. [2019-10-22 11:21:52,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2019-10-22 11:21:52,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 319 transitions. [2019-10-22 11:21:52,343 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 319 transitions. Word has length 109 [2019-10-22 11:21:52,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:52,344 INFO L462 AbstractCegarLoop]: Abstraction has 251 states and 319 transitions. [2019-10-22 11:21:52,344 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:21:52,344 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 319 transitions. [2019-10-22 11:21:52,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-10-22 11:21:52,347 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:52,348 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:52,548 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:52,548 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:52,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:52,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1612625566, now seen corresponding path program 1 times [2019-10-22 11:21:52,549 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:52,549 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1636982038] [2019-10-22 11:21:52,549 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/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 11:21:52,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:52,700 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 11:21:52,701 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:52,736 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 11:21:52,737 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:52,773 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 11:21:52,773 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1636982038] [2019-10-22 11:21:52,773 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835484530] [2019-10-22 11:21:52,773 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/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 11:21:52,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:52,899 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-22 11:21:52,901 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:52,949 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 94 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-22 11:21:52,949 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:53,057 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-22 11:21:53,058 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-22 11:21:53,058 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7, 7, 8] total 18 [2019-10-22 11:21:53,058 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927507301] [2019-10-22 11:21:53,059 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:21:53,060 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:53,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:21:53,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2019-10-22 11:21:53,060 INFO L87 Difference]: Start difference. First operand 251 states and 319 transitions. Second operand 8 states. [2019-10-22 11:21:53,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:53,572 INFO L93 Difference]: Finished difference Result 1049 states and 1340 transitions. [2019-10-22 11:21:53,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-22 11:21:53,573 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 109 [2019-10-22 11:21:53,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:53,576 INFO L225 Difference]: With dead ends: 1049 [2019-10-22 11:21:53,577 INFO L226 Difference]: Without dead ends: 805 [2019-10-22 11:21:53,578 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 425 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=185, Invalid=685, Unknown=0, NotChecked=0, Total=870 [2019-10-22 11:21:53,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2019-10-22 11:21:53,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 405. [2019-10-22 11:21:53,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2019-10-22 11:21:53,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 515 transitions. [2019-10-22 11:21:53,639 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 515 transitions. Word has length 109 [2019-10-22 11:21:53,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:53,640 INFO L462 AbstractCegarLoop]: Abstraction has 405 states and 515 transitions. [2019-10-22 11:21:53,640 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:21:53,640 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 515 transitions. [2019-10-22 11:21:53,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-10-22 11:21:53,641 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:53,641 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:54,042 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 11:21:54,042 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:54,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:54,042 INFO L82 PathProgramCache]: Analyzing trace with hash -1655343747, now seen corresponding path program 1 times [2019-10-22 11:21:54,043 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:54,043 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [37360773] [2019-10-22 11:21:54,043 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/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 11:21:54,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:54,170 INFO L256 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 11:21:54,172 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:54,208 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-22 11:21:54,208 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:54,242 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-22 11:21:54,242 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [37360773] [2019-10-22 11:21:54,243 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:54,243 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 9 [2019-10-22 11:21:54,243 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585435719] [2019-10-22 11:21:54,243 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 11:21:54,243 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:54,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 11:21:54,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:21:54,244 INFO L87 Difference]: Start difference. First operand 405 states and 515 transitions. Second operand 9 states. [2019-10-22 11:21:54,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:54,546 INFO L93 Difference]: Finished difference Result 942 states and 1205 transitions. [2019-10-22 11:21:54,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 11:21:54,546 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 111 [2019-10-22 11:21:54,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:54,548 INFO L225 Difference]: With dead ends: 942 [2019-10-22 11:21:54,548 INFO L226 Difference]: Without dead ends: 544 [2019-10-22 11:21:54,549 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2019-10-22 11:21:54,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2019-10-22 11:21:54,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 405. [2019-10-22 11:21:54,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2019-10-22 11:21:54,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 509 transitions. [2019-10-22 11:21:54,587 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 509 transitions. Word has length 111 [2019-10-22 11:21:54,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:54,587 INFO L462 AbstractCegarLoop]: Abstraction has 405 states and 509 transitions. [2019-10-22 11:21:54,587 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 11:21:54,587 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 509 transitions. [2019-10-22 11:21:54,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-22 11:21:54,588 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:54,588 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:54,789 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:54,789 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:54,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:54,789 INFO L82 PathProgramCache]: Analyzing trace with hash -1107962188, now seen corresponding path program 1 times [2019-10-22 11:21:54,790 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:54,790 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1987880502] [2019-10-22 11:21:54,790 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/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 11:21:54,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:54,951 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 11:21:54,953 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:54,990 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 63 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-22 11:21:54,991 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:55,031 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 63 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-22 11:21:55,032 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1987880502] [2019-10-22 11:21:55,032 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969511487] [2019-10-22 11:21:55,032 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/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 11:21:55,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:55,146 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 11:21:55,148 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:55,160 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 63 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-22 11:21:55,160 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:55,178 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 63 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-22 11:21:55,178 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-22 11:21:55,179 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7] total 9 [2019-10-22 11:21:55,179 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936508062] [2019-10-22 11:21:55,179 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 11:21:55,180 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:55,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 11:21:55,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:21:55,180 INFO L87 Difference]: Start difference. First operand 405 states and 509 transitions. Second operand 9 states. [2019-10-22 11:21:55,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:55,626 INFO L93 Difference]: Finished difference Result 962 states and 1219 transitions. [2019-10-22 11:21:55,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 11:21:55,627 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 112 [2019-10-22 11:21:55,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:55,628 INFO L225 Difference]: With dead ends: 962 [2019-10-22 11:21:55,628 INFO L226 Difference]: Without dead ends: 655 [2019-10-22 11:21:55,629 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 439 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2019-10-22 11:21:55,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2019-10-22 11:21:55,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 466. [2019-10-22 11:21:55,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 466 states. [2019-10-22 11:21:55,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 586 transitions. [2019-10-22 11:21:55,677 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 586 transitions. Word has length 112 [2019-10-22 11:21:55,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:55,677 INFO L462 AbstractCegarLoop]: Abstraction has 466 states and 586 transitions. [2019-10-22 11:21:55,677 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 11:21:55,677 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 586 transitions. [2019-10-22 11:21:55,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-10-22 11:21:55,680 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:55,681 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:56,081 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 11:21:56,082 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:56,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:56,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1801797937, now seen corresponding path program 1 times [2019-10-22 11:21:56,083 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:56,083 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1649537747] [2019-10-22 11:21:56,083 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/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 11:21:56,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:56,416 INFO L256 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:21:56,418 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:56,458 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 22 proven. 84 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-22 11:21:56,459 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:56,533 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 22 proven. 84 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-22 11:21:56,533 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1649537747] [2019-10-22 11:21:56,533 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964804447] [2019-10-22 11:21:56,533 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/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 11:21:56,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:56,667 INFO L256 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 12 conjunts are in the unsatisfiable core [2019-10-22 11:21:56,669 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:56,739 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 74 proven. 6 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2019-10-22 11:21:56,739 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:56,804 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:21:56,815 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-22 11:21:56,816 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-22 11:21:56,816 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 4, 7] total 15 [2019-10-22 11:21:56,816 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519047862] [2019-10-22 11:21:56,816 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:21:56,819 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:56,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:21:56,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2019-10-22 11:21:56,820 INFO L87 Difference]: Start difference. First operand 466 states and 586 transitions. Second operand 5 states. [2019-10-22 11:21:57,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:57,189 INFO L93 Difference]: Finished difference Result 957 states and 1202 transitions. [2019-10-22 11:21:57,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:21:57,190 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 114 [2019-10-22 11:21:57,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:57,192 INFO L225 Difference]: With dead ends: 957 [2019-10-22 11:21:57,192 INFO L226 Difference]: Without dead ends: 583 [2019-10-22 11:21:57,193 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 437 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 11:21:57,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2019-10-22 11:21:57,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 412. [2019-10-22 11:21:57,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2019-10-22 11:21:57,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 516 transitions. [2019-10-22 11:21:57,244 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 516 transitions. Word has length 114 [2019-10-22 11:21:57,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:57,244 INFO L462 AbstractCegarLoop]: Abstraction has 412 states and 516 transitions. [2019-10-22 11:21:57,244 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:21:57,244 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 516 transitions. [2019-10-22 11:21:57,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-10-22 11:21:57,246 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:57,246 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:57,647 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 11:21:57,647 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:57,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:57,647 INFO L82 PathProgramCache]: Analyzing trace with hash 806989521, now seen corresponding path program 1 times [2019-10-22 11:21:57,647 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:57,647 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1531048882] [2019-10-22 11:21:57,648 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/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 11:21:57,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:57,768 INFO L256 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 11:21:57,769 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:57,787 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-22 11:21:57,787 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:57,809 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-22 11:21:57,810 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1531048882] [2019-10-22 11:21:57,810 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:57,810 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 9 [2019-10-22 11:21:57,810 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299147697] [2019-10-22 11:21:57,810 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 11:21:57,811 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:57,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 11:21:57,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:21:57,811 INFO L87 Difference]: Start difference. First operand 412 states and 516 transitions. Second operand 9 states. [2019-10-22 11:21:57,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:57,894 INFO L93 Difference]: Finished difference Result 622 states and 773 transitions. [2019-10-22 11:21:57,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:21:57,895 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 114 [2019-10-22 11:21:57,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:57,895 INFO L225 Difference]: With dead ends: 622 [2019-10-22 11:21:57,895 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:21:57,896 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-10-22 11:21:57,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:21:57,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:21:57,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:21:57,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:21:57,897 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 114 [2019-10-22 11:21:57,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:57,897 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:21:57,897 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 11:21:57,897 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:21:57,897 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:21:58,097 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:58,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:21:58,385 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 102 [2019-10-22 11:21:58,511 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 92 [2019-10-22 11:21:58,639 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 162 [2019-10-22 11:21:58,820 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 104 [2019-10-22 11:21:58,954 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 143 [2019-10-22 11:21:59,133 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 141 [2019-10-22 11:21:59,244 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 141 [2019-10-22 11:21:59,374 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 141 [2019-10-22 11:21:59,824 WARN L191 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 29 [2019-10-22 11:22:00,174 WARN L191 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 25 [2019-10-22 11:22:00,740 WARN L191 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 31 [2019-10-22 11:22:00,972 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 24 [2019-10-22 11:22:01,276 WARN L191 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 28 [2019-10-22 11:22:01,725 WARN L191 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 32 [2019-10-22 11:22:01,927 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 30 [2019-10-22 11:22:02,385 WARN L191 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 26 [2019-10-22 11:22:02,774 WARN L191 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 26 [2019-10-22 11:22:02,935 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 28 [2019-10-22 11:22:03,351 WARN L191 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 26 [2019-10-22 11:22:03,378 INFO L443 ceAbstractionStarter]: For program point L729(lines 729 733) no Hoare annotation was computed. [2019-10-22 11:22:03,378 INFO L439 ceAbstractionStarter]: At program point L729-2(lines 729 733) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (_ bv2 32) ~waterLevel~0)) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse4 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|))) (or (and (and .cse0 .cse1 .cse2 .cse3) .cse4) (and (and (and .cse0 .cse2 .cse3) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) .cse4) (and (and (= (_ bv1 32) ~pumpRunning~0) .cse1 .cse2 .cse3) .cse4))) [2019-10-22 11:22:03,378 INFO L443 ceAbstractionStarter]: For program point L796(lines 796 804) no Hoare annotation was computed. [2019-10-22 11:22:03,378 INFO L443 ceAbstractionStarter]: For program point L796-1(lines 796 804) no Hoare annotation was computed. [2019-10-22 11:22:03,378 INFO L443 ceAbstractionStarter]: For program point L796-2(lines 796 804) no Hoare annotation was computed. [2019-10-22 11:22:03,378 INFO L443 ceAbstractionStarter]: For program point L796-3(lines 796 804) no Hoare annotation was computed. [2019-10-22 11:22:03,378 INFO L443 ceAbstractionStarter]: For program point L796-4(lines 796 804) no Hoare annotation was computed. [2019-10-22 11:22:03,378 INFO L443 ceAbstractionStarter]: For program point L796-5(lines 796 804) no Hoare annotation was computed. [2019-10-22 11:22:03,378 INFO L439 ceAbstractionStarter]: At program point L169(lines 760 766) the Hoare annotation is: (let ((.cse4 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (let ((.cse0 (= (_ bv2 32) ~waterLevel~0)) (.cse3 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (and (= (_ bv0 32) ~pumpRunning~0) (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|) .cse4))) (or (and (and .cse0 .cse1 .cse2) .cse3) (and (and (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) ~switchedOnBeforeTS~0) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) .cse0 .cse4 .cse1) .cse3) (and .cse3 (and (and .cse1 .cse2) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))))))) [2019-10-22 11:22:03,378 INFO L439 ceAbstractionStarter]: At program point L136(lines 127 140) the Hoare annotation is: false [2019-10-22 11:22:03,379 INFO L439 ceAbstractionStarter]: At program point L169-1(lines 760 766) the Hoare annotation is: false [2019-10-22 11:22:03,379 INFO L439 ceAbstractionStarter]: At program point L136-1(lines 127 140) the Hoare annotation is: (let ((.cse2 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|)) (.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and .cse0 (= (_ bv2 32) ~waterLevel~0) .cse1 .cse2 .cse3) (and .cse2 (and (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) .cse0 .cse1 .cse3))))) [2019-10-22 11:22:03,379 INFO L439 ceAbstractionStarter]: At program point L169-2(lines 760 766) the Hoare annotation is: false [2019-10-22 11:22:03,379 INFO L439 ceAbstractionStarter]: At program point L136-2(lines 127 140) the Hoare annotation is: false [2019-10-22 11:22:03,379 INFO L439 ceAbstractionStarter]: At program point L136-3(lines 127 140) the Hoare annotation is: false [2019-10-22 11:22:03,379 INFO L439 ceAbstractionStarter]: At program point L136-4(lines 127 140) the Hoare annotation is: false [2019-10-22 11:22:03,379 INFO L439 ceAbstractionStarter]: At program point L136-5(lines 127 140) the Hoare annotation is: false [2019-10-22 11:22:03,379 INFO L439 ceAbstractionStarter]: At program point L963(lines 948 966) the Hoare annotation is: (and (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) ~switchedOnBeforeTS~0) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (= ULTIMATE.start_isLowWaterLevel_~tmp~10 (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd |ULTIMATE.start_isLowWaterLevel_#res| (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)) (= (bvadd ULTIMATE.start_isLowWaterLevel_~tmp___0~3 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:22:03,379 INFO L439 ceAbstractionStarter]: At program point L963-1(lines 948 966) the Hoare annotation is: false [2019-10-22 11:22:03,379 INFO L439 ceAbstractionStarter]: At program point L963-2(lines 948 966) the Hoare annotation is: false [2019-10-22 11:22:03,379 INFO L446 ceAbstractionStarter]: At program point L666(lines 647 669) the Hoare annotation is: true [2019-10-22 11:22:03,379 INFO L439 ceAbstractionStarter]: At program point L998(lines 1 1009) 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 11:22:03,379 INFO L439 ceAbstractionStarter]: At program point L767(lines 767 773) the Hoare annotation is: (let ((.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse4 (= (_ bv2 32) ~waterLevel~0)) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse0 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|))) (or (and .cse0 (and (and .cse1 .cse2 .cse3) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)))) (and (= (_ bv1 32) ~pumpRunning~0) .cse4 .cse2 .cse0 .cse3) (and (and .cse1 .cse4 .cse2 .cse3) .cse0))) [2019-10-22 11:22:03,380 INFO L439 ceAbstractionStarter]: At program point L767-1(lines 767 773) the Hoare annotation is: false [2019-10-22 11:22:03,380 INFO L443 ceAbstractionStarter]: For program point L701(lines 701 707) no Hoare annotation was computed. [2019-10-22 11:22:03,380 INFO L439 ceAbstractionStarter]: At program point L767-2(lines 767 773) the Hoare annotation is: false [2019-10-22 11:22:03,380 INFO L439 ceAbstractionStarter]: At program point L701-1(lines 701 707) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (_ bv2 32) ~waterLevel~0)) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse4 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|))) (or (and (and .cse0 .cse1 .cse2 .cse3) .cse4) (and (and (and .cse0 .cse2 .cse3) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) .cse4) (and (and (= (_ bv1 32) ~pumpRunning~0) .cse1 .cse2 .cse3) .cse4))) [2019-10-22 11:22:03,380 INFO L443 ceAbstractionStarter]: For program point L78(lines 78 82) no Hoare annotation was computed. [2019-10-22 11:22:03,380 INFO L439 ceAbstractionStarter]: At program point L739(lines 690 740) the Hoare annotation is: false [2019-10-22 11:22:03,380 INFO L443 ceAbstractionStarter]: For program point L938(lines 938 942) no Hoare annotation was computed. [2019-10-22 11:22:03,380 INFO L443 ceAbstractionStarter]: For program point L938-2(lines 938 942) no Hoare annotation was computed. [2019-10-22 11:22:03,380 INFO L443 ceAbstractionStarter]: For program point L938-3(lines 938 942) no Hoare annotation was computed. [2019-10-22 11:22:03,380 INFO L443 ceAbstractionStarter]: For program point L938-5(lines 938 942) no Hoare annotation was computed. [2019-10-22 11:22:03,380 INFO L443 ceAbstractionStarter]: For program point L938-6(lines 938 942) no Hoare annotation was computed. [2019-10-22 11:22:03,380 INFO L443 ceAbstractionStarter]: For program point L938-8(lines 938 942) no Hoare annotation was computed. [2019-10-22 11:22:03,380 INFO L443 ceAbstractionStarter]: For program point L938-9(lines 938 942) no Hoare annotation was computed. [2019-10-22 11:22:03,380 INFO L443 ceAbstractionStarter]: For program point L938-11(lines 938 942) no Hoare annotation was computed. [2019-10-22 11:22:03,380 INFO L443 ceAbstractionStarter]: For program point L938-12(lines 938 942) no Hoare annotation was computed. [2019-10-22 11:22:03,380 INFO L443 ceAbstractionStarter]: For program point L938-14(lines 938 942) no Hoare annotation was computed. [2019-10-22 11:22:03,380 INFO L443 ceAbstractionStarter]: For program point L938-15(lines 938 942) no Hoare annotation was computed. [2019-10-22 11:22:03,381 INFO L443 ceAbstractionStarter]: For program point L938-17(lines 938 942) no Hoare annotation was computed. [2019-10-22 11:22:03,381 INFO L439 ceAbstractionStarter]: At program point L146(lines 141 149) the Hoare annotation is: (and (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) ~switchedOnBeforeTS~0) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) [2019-10-22 11:22:03,381 INFO L439 ceAbstractionStarter]: At program point L146-1(lines 141 149) the Hoare annotation is: false [2019-10-22 11:22:03,381 INFO L439 ceAbstractionStarter]: At program point L146-2(lines 141 149) the Hoare annotation is: false [2019-10-22 11:22:03,381 INFO L443 ceAbstractionStarter]: For program point L675(line 675) no Hoare annotation was computed. [2019-10-22 11:22:03,381 INFO L443 ceAbstractionStarter]: For program point L675-1(line 675) no Hoare annotation was computed. [2019-10-22 11:22:03,381 INFO L443 ceAbstractionStarter]: For program point L675-2(line 675) no Hoare annotation was computed. [2019-10-22 11:22:03,381 INFO L443 ceAbstractionStarter]: For program point L180(lines 180 197) no Hoare annotation was computed. [2019-10-22 11:22:03,381 INFO L439 ceAbstractionStarter]: At program point L180-1(lines 1 1009) the Hoare annotation is: (let ((.cse4 (= ~waterLevel~0 ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~0)) (.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse5 (= (_ bv2 32) ~waterLevel~0)) (.cse1 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse3 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse6 (= (_ bv2 32) |ULTIMATE.start_getWaterLevel_#res|))) (or (and (and (and .cse0 .cse1 .cse2) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) .cse3) (and .cse4 (= (_ bv1 32) ~pumpRunning~0) .cse5 .cse1 .cse3 .cse2 .cse6) (and .cse4 .cse0 .cse5 .cse1 .cse3 .cse2 .cse6))) [2019-10-22 11:22:03,381 INFO L443 ceAbstractionStarter]: For program point L180-2(lines 180 197) no Hoare annotation was computed. [2019-10-22 11:22:03,381 INFO L439 ceAbstractionStarter]: At program point L180-3(lines 1 1009) the Hoare annotation is: false [2019-10-22 11:22:03,381 INFO L443 ceAbstractionStarter]: For program point L180-4(lines 180 197) no Hoare annotation was computed. [2019-10-22 11:22:03,381 INFO L439 ceAbstractionStarter]: At program point L180-5(lines 1 1009) the Hoare annotation is: false [2019-10-22 11:22:03,381 INFO L439 ceAbstractionStarter]: At program point L1006(lines 1001 1009) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:22:03,381 INFO L443 ceAbstractionStarter]: For program point L711(lines 711 717) no Hoare annotation was computed. [2019-10-22 11:22:03,382 INFO L439 ceAbstractionStarter]: At program point L711-1(lines 711 717) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (_ bv2 32) ~waterLevel~0)) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse4 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|))) (or (and (and .cse0 .cse1 .cse2 .cse3) .cse4) (and (and (and .cse0 .cse2 .cse3) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) .cse4) (and (and (= (_ bv1 32) ~pumpRunning~0) .cse1 .cse2 .cse3) .cse4))) [2019-10-22 11:22:03,382 INFO L439 ceAbstractionStarter]: At program point L580-2(lines 580 594) the Hoare annotation is: false [2019-10-22 11:22:03,382 INFO L443 ceAbstractionStarter]: For program point L184(lines 184 194) no Hoare annotation was computed. [2019-10-22 11:22:03,382 INFO L443 ceAbstractionStarter]: For program point L184-2(lines 184 194) no Hoare annotation was computed. [2019-10-22 11:22:03,384 INFO L443 ceAbstractionStarter]: For program point L184-4(lines 184 194) no Hoare annotation was computed. [2019-10-22 11:22:03,384 INFO L439 ceAbstractionStarter]: At program point L944(lines 929 947) the Hoare annotation is: false [2019-10-22 11:22:03,384 INFO L439 ceAbstractionStarter]: At program point L944-1(lines 929 947) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|))) (or (and .cse0 (= (_ bv2 32) ~waterLevel~0) .cse1 .cse2 .cse3) (and (and (and (and (= ULTIMATE.start_isHighWaterLevel_~tmp___0~2 (_ bv0 32)) .cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32)) .cse1 (not (= ULTIMATE.start_isHighWaterLevel_~tmp~9 (_ bv0 32)))) .cse3) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) .cse2))) [2019-10-22 11:22:03,384 INFO L439 ceAbstractionStarter]: At program point L944-2(lines 929 947) the Hoare annotation is: false [2019-10-22 11:22:03,384 INFO L439 ceAbstractionStarter]: At program point L944-3(lines 929 947) the Hoare annotation is: false [2019-10-22 11:22:03,385 INFO L439 ceAbstractionStarter]: At program point L944-4(lines 929 947) the Hoare annotation is: false [2019-10-22 11:22:03,385 INFO L439 ceAbstractionStarter]: At program point L944-5(lines 929 947) the Hoare annotation is: false [2019-10-22 11:22:03,385 INFO L443 ceAbstractionStarter]: For program point L581(line 581) no Hoare annotation was computed. [2019-10-22 11:22:03,385 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:22:03,385 INFO L443 ceAbstractionStarter]: For program point L185(lines 185 191) no Hoare annotation was computed. [2019-10-22 11:22:03,385 INFO L443 ceAbstractionStarter]: For program point L185-2(lines 185 191) no Hoare annotation was computed. [2019-10-22 11:22:03,385 INFO L443 ceAbstractionStarter]: For program point L185-4(lines 185 191) no Hoare annotation was computed. [2019-10-22 11:22:03,385 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 675) no Hoare annotation was computed. [2019-10-22 11:22:03,385 INFO L443 ceAbstractionStarter]: For program point L54(lines 54 58) no Hoare annotation was computed. [2019-10-22 11:22:03,385 INFO L443 ceAbstractionStarter]: For program point L54-3(lines 54 58) no Hoare annotation was computed. [2019-10-22 11:22:03,385 INFO L439 ceAbstractionStarter]: At program point L880(lines 873 883) the Hoare annotation is: false [2019-10-22 11:22:03,385 INFO L443 ceAbstractionStarter]: For program point L54-6(lines 54 58) no Hoare annotation was computed. [2019-10-22 11:22:03,385 INFO L439 ceAbstractionStarter]: At program point L880-1(lines 873 883) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (_ bv2 32) ~waterLevel~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) [2019-10-22 11:22:03,385 INFO L439 ceAbstractionStarter]: At program point L880-2(lines 873 883) the Hoare annotation is: false [2019-10-22 11:22:03,385 INFO L439 ceAbstractionStarter]: At program point L880-3(lines 873 883) the Hoare annotation is: false [2019-10-22 11:22:03,385 INFO L439 ceAbstractionStarter]: At program point L880-4(lines 873 883) the Hoare annotation is: false [2019-10-22 11:22:03,385 INFO L439 ceAbstractionStarter]: At program point L880-5(lines 873 883) the Hoare annotation is: false [2019-10-22 11:22:03,385 INFO L443 ceAbstractionStarter]: For program point L584(lines 584 588) no Hoare annotation was computed. [2019-10-22 11:22:03,385 INFO L443 ceAbstractionStarter]: For program point L584-1(lines 584 588) no Hoare annotation was computed. [2019-10-22 11:22:03,385 INFO L439 ceAbstractionStarter]: At program point L123(lines 118 126) the Hoare annotation is: (let ((.cse0 (= (_ bv2 32) ~waterLevel~0)) (.cse3 (= (_ bv2 32) |ULTIMATE.start_getWaterLevel_#res|)) (.cse5 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse4 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|))) (or (and (and (= (_ bv1 32) ~pumpRunning~0) .cse0 .cse1 .cse2 .cse3) .cse4) (and .cse5 .cse0 .cse1 .cse4 .cse2 .cse3) (and (= ~waterLevel~0 |ULTIMATE.start_getWaterLevel_#res|) (and (and .cse5 .cse1 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) .cse2) .cse4)))) [2019-10-22 11:22:03,386 INFO L439 ceAbstractionStarter]: At program point L123-1(lines 118 126) the Hoare annotation is: false [2019-10-22 11:22:03,386 INFO L439 ceAbstractionStarter]: At program point L123-2(lines 118 126) the Hoare annotation is: false [2019-10-22 11:22:03,386 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:22:03,386 INFO L439 ceAbstractionStarter]: At program point L91(lines 86 94) the Hoare annotation is: false [2019-10-22 11:22:03,386 INFO L439 ceAbstractionStarter]: At program point L91-1(lines 86 94) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (_ bv2 32) ~waterLevel~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) [2019-10-22 11:22:03,386 INFO L439 ceAbstractionStarter]: At program point L91-2(lines 86 94) the Hoare annotation is: false [2019-10-22 11:22:03,386 INFO L439 ceAbstractionStarter]: At program point L91-3(lines 86 94) the Hoare annotation is: false [2019-10-22 11:22:03,386 INFO L439 ceAbstractionStarter]: At program point L91-4(lines 86 94) the Hoare annotation is: false [2019-10-22 11:22:03,386 INFO L439 ceAbstractionStarter]: At program point L91-5(lines 86 94) the Hoare annotation is: false [2019-10-22 11:22:03,386 INFO L443 ceAbstractionStarter]: For program point L818(lines 818 835) no Hoare annotation was computed. [2019-10-22 11:22:03,386 INFO L443 ceAbstractionStarter]: For program point L818-1(lines 818 835) no Hoare annotation was computed. [2019-10-22 11:22:03,386 INFO L443 ceAbstractionStarter]: For program point L818-2(lines 818 835) no Hoare annotation was computed. [2019-10-22 11:22:03,386 INFO L439 ceAbstractionStarter]: At program point L159(lines 154 161) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:22:03,387 INFO L443 ceAbstractionStarter]: For program point L721(lines 721 734) no Hoare annotation was computed. [2019-10-22 11:22:03,387 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:22:03,387 INFO L443 ceAbstractionStarter]: For program point L855(lines 855 861) no Hoare annotation was computed. [2019-10-22 11:22:03,387 INFO L443 ceAbstractionStarter]: For program point L822(lines 822 830) no Hoare annotation was computed. [2019-10-22 11:22:03,387 INFO L443 ceAbstractionStarter]: For program point L855-2(lines 855 861) no Hoare annotation was computed. [2019-10-22 11:22:03,387 INFO L443 ceAbstractionStarter]: For program point L822-1(lines 822 830) no Hoare annotation was computed. [2019-10-22 11:22:03,387 INFO L443 ceAbstractionStarter]: For program point L822-2(lines 822 830) no Hoare annotation was computed. [2019-10-22 11:22:03,387 INFO L443 ceAbstractionStarter]: For program point L855-4(lines 855 861) no Hoare annotation was computed. [2019-10-22 11:22:03,387 INFO L443 ceAbstractionStarter]: For program point L657(lines 657 664) no Hoare annotation was computed. [2019-10-22 11:22:03,387 INFO L443 ceAbstractionStarter]: For program point L855-6(lines 855 861) no Hoare annotation was computed. [2019-10-22 11:22:03,387 INFO L446 ceAbstractionStarter]: At program point L657-1(lines 657 664) the Hoare annotation is: true [2019-10-22 11:22:03,387 INFO L443 ceAbstractionStarter]: For program point L855-8(lines 855 861) no Hoare annotation was computed. [2019-10-22 11:22:03,387 INFO L443 ceAbstractionStarter]: For program point L855-10(lines 855 861) no Hoare annotation was computed. [2019-10-22 11:22:03,388 INFO L439 ceAbstractionStarter]: At program point L889(lines 884 892) the Hoare annotation is: (let ((.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (let ((.cse1 (= (_ bv2 32) ~waterLevel~0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse4 (and (= (_ bv0 32) ~pumpRunning~0) (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|) .cse2)) (.cse0 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|))) (or (and .cse0 (and (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) (and (= (_ bv1 32) ~pumpRunning~0) .cse1 .cse2 .cse3))) (and (and (and .cse3 .cse4) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) .cse0) (and (and .cse1 .cse3 .cse4) .cse0)))) [2019-10-22 11:22:03,388 INFO L439 ceAbstractionStarter]: At program point L889-1(lines 884 892) the Hoare annotation is: (and (= ~waterLevel~0 ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~0) (= ~waterLevel~0 |ULTIMATE.start_getWaterLevel_#res|) (= (_ bv0 32) ~pumpRunning~0) (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) [2019-10-22 11:22:03,388 INFO L439 ceAbstractionStarter]: At program point L889-2(lines 884 892) the Hoare annotation is: false [2019-10-22 11:22:03,388 INFO L439 ceAbstractionStarter]: At program point L889-3(lines 884 892) the Hoare annotation is: false [2019-10-22 11:22:03,388 INFO L439 ceAbstractionStarter]: At program point L889-4(lines 884 892) the Hoare annotation is: false [2019-10-22 11:22:03,388 INFO L439 ceAbstractionStarter]: At program point L889-5(lines 884 892) the Hoare annotation is: false [2019-10-22 11:22:03,388 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 675) no Hoare annotation was computed. [2019-10-22 11:22:03,388 INFO L443 ceAbstractionStarter]: For program point L692(lines 691 738) no Hoare annotation was computed. [2019-10-22 11:22:03,388 INFO L443 ceAbstractionStarter]: For program point L131(lines 131 137) no Hoare annotation was computed. [2019-10-22 11:22:03,388 INFO L443 ceAbstractionStarter]: For program point L131-1(lines 131 137) no Hoare annotation was computed. [2019-10-22 11:22:03,388 INFO L443 ceAbstractionStarter]: For program point L131-2(lines 131 137) no Hoare annotation was computed. [2019-10-22 11:22:03,389 INFO L443 ceAbstractionStarter]: For program point L131-3(lines 131 137) no Hoare annotation was computed. [2019-10-22 11:22:03,389 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 11:22:03,389 INFO L443 ceAbstractionStarter]: For program point L131-4(lines 131 137) no Hoare annotation was computed. [2019-10-22 11:22:03,389 INFO L443 ceAbstractionStarter]: For program point L131-5(lines 131 137) no Hoare annotation was computed. [2019-10-22 11:22:03,389 INFO L443 ceAbstractionStarter]: For program point L957(lines 957 961) no Hoare annotation was computed. [2019-10-22 11:22:03,389 INFO L443 ceAbstractionStarter]: For program point L957-2(lines 957 961) no Hoare annotation was computed. [2019-10-22 11:22:03,389 INFO L443 ceAbstractionStarter]: For program point L957-3(lines 957 961) no Hoare annotation was computed. [2019-10-22 11:22:03,389 INFO L443 ceAbstractionStarter]: For program point L792(lines 792 809) no Hoare annotation was computed. [2019-10-22 11:22:03,389 INFO L443 ceAbstractionStarter]: For program point L957-5(lines 957 961) no Hoare annotation was computed. [2019-10-22 11:22:03,389 INFO L443 ceAbstractionStarter]: For program point L792-1(lines 792 809) no Hoare annotation was computed. [2019-10-22 11:22:03,389 INFO L443 ceAbstractionStarter]: For program point L957-6(lines 957 961) no Hoare annotation was computed. [2019-10-22 11:22:03,389 INFO L443 ceAbstractionStarter]: For program point L792-2(lines 792 809) no Hoare annotation was computed. [2019-10-22 11:22:03,389 INFO L443 ceAbstractionStarter]: For program point L693(lines 693 697) no Hoare annotation was computed. [2019-10-22 11:22:03,389 INFO L443 ceAbstractionStarter]: For program point L792-3(lines 792 809) no Hoare annotation was computed. [2019-10-22 11:22:03,390 INFO L443 ceAbstractionStarter]: For program point L957-8(lines 957 961) no Hoare annotation was computed. [2019-10-22 11:22:03,390 INFO L443 ceAbstractionStarter]: For program point L792-4(lines 792 809) no Hoare annotation was computed. [2019-10-22 11:22:03,390 INFO L443 ceAbstractionStarter]: For program point L792-5(lines 792 809) no Hoare annotation was computed. [2019-10-22 11:22:03,390 INFO L443 ceAbstractionStarter]: For program point L66(lines 66 70) no Hoare annotation was computed. [2019-10-22 11:22:03,391 INFO L439 ceAbstractionStarter]: At program point L760(lines 756 778) the Hoare annotation is: (let ((.cse4 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse1 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|))) (or (and (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) ~switchedOnBeforeTS~0) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) .cse0 .cse1 .cse2 .cse3) (and (and .cse4 (= (_ bv2 32) ~waterLevel~0) .cse0 .cse3) .cse1) (and (and (and .cse4 .cse0 .cse3) .cse2) .cse1))) [2019-10-22 11:22:03,391 INFO L439 ceAbstractionStarter]: At program point L760-1(lines 756 778) the Hoare annotation is: false [2019-10-22 11:22:03,391 INFO L439 ceAbstractionStarter]: At program point L760-2(lines 756 778) the Hoare annotation is: false [2019-10-22 11:22:03,391 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 675) no Hoare annotation was computed. [2019-10-22 11:22:03,391 INFO L439 ceAbstractionStarter]: At program point L629(lines 625 631) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:22:03,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:22:03 BoogieIcfgContainer [2019-10-22 11:22:03,419 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:22:03,419 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:22:03,419 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:22:03,419 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:22:03,419 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:45" (3/4) ... [2019-10-22 11:22:03,423 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:22:03,437 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2019-10-22 11:22:03,438 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2019-10-22 11:22:03,439 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-10-22 11:22:03,439 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 11:22:03,440 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 11:22:03,441 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 11:22:03,469 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 [2019-10-22 11:22:03,469 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 [2019-10-22 11:22:03,469 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 [2019-10-22 11:22:03,469 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) || ((((((waterLevel == tmp && 1bv32 == pumpRunning) && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && splverifierCounter == 0bv32) && 2bv32 == \result)) || ((((((waterLevel == tmp && 0bv32 == pumpRunning) && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && splverifierCounter == 0bv32) && 2bv32 == \result) [2019-10-22 11:22:03,470 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 1bv32 == \result) || ((((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result)) || ((((1bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 1bv32 == \result) [2019-10-22 11:22:03,470 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 1bv32 == \result) || ((((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result)) || ((((1bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 1bv32 == \result) [2019-10-22 11:22:03,470 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 1bv32 == \result) || ((((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result)) || ((((1bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 1bv32 == \result) [2019-10-22 11:22:03,470 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((1bv32 == \result && 1bv32 == \result && ((1bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || (((splverifierCounter == 0bv32 && (0bv32 == pumpRunning && 0bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result)) || (((2bv32 == waterLevel && splverifierCounter == 0bv32) && (0bv32 == pumpRunning && 0bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) [2019-10-22 11:22:03,471 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((2bv32 == waterLevel && splverifierCounter == 0bv32) && (0bv32 == pumpRunning && 0bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) || ((((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 1bv32 == \result)) || (1bv32 == \result && (splverifierCounter == 0bv32 && (0bv32 == pumpRunning && 0bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) [2019-10-22 11:22:03,471 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || ((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 1bv32 == \result)) || ((((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) [2019-10-22 11:22:03,471 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((1bv32 == \result && ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || ((((1bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && splverifierCounter == 0bv32)) || ((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 1bv32 == \result) [2019-10-22 11:22:03,471 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 2bv32 == \result) && 1bv32 == \result) || (((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && splverifierCounter == 0bv32) && 2bv32 == \result)) || (waterLevel == \result && (((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 1bv32 == \result) [2019-10-22 11:22:03,472 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && \result == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && splverifierCounter == 0bv32 [2019-10-22 11:22:03,472 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && splverifierCounter == 0bv32) || (1bv32 == \result && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 && ((1bv32 == \result && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) [2019-10-22 11:22:03,472 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((waterLevel == tmp && waterLevel == \result) && 0bv32 == pumpRunning) && 0bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && splverifierCounter == 0bv32 [2019-10-22 11:22:03,473 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && \result == 0bv32) && tmp == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32 [2019-10-22 11:22:03,473 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && splverifierCounter == 0bv32) || (((((((tmp___0 == 0bv32 && 0bv32 == pumpRunning) && \result == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) [2019-10-22 11:22:03,475 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && splverifierCounter == 0bv32 [2019-10-22 11:22:03,475 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && splverifierCounter == 0bv32 [2019-10-22 11:22:03,523 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_166286c7-7187-49f7-a6c5-b5e124635724/bin/utaipan/witness.graphml [2019-10-22 11:22:03,523 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:22:03,524 INFO L168 Benchmark]: Toolchain (without parser) took 20006.15 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 416.8 MB). Free memory was 947.0 MB in the beginning and 984.3 MB in the end (delta: -37.4 MB). Peak memory consumption was 379.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:03,524 INFO L168 Benchmark]: CDTParser took 0.15 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 11:22:03,524 INFO L168 Benchmark]: CACSL2BoogieTranslator took 661.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Free memory was 945.6 MB in the beginning and 1.2 GB in the end (delta: -225.0 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:03,524 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:03,525 INFO L168 Benchmark]: Boogie Preprocessor took 42.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:03,525 INFO L168 Benchmark]: RCFGBuilder took 1091.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 78.0 MB). Peak memory consumption was 78.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:03,525 INFO L168 Benchmark]: TraceAbstraction took 18027.01 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 226.5 MB). Free memory was 1.1 GB in the beginning and 995.0 MB in the end (delta: 84.4 MB). Peak memory consumption was 386.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:03,525 INFO L168 Benchmark]: Witness Printer took 103.97 ms. Allocated memory is still 1.4 GB. Free memory was 995.0 MB in the beginning and 984.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:03,530 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 661.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Free memory was 945.6 MB in the beginning and 1.2 GB in the end (delta: -225.0 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 75.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1091.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 78.0 MB). Peak memory consumption was 78.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 18027.01 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 226.5 MB). Free memory was 1.1 GB in the beginning and 995.0 MB in the end (delta: 84.4 MB). Peak memory consumption was 386.4 MB. Max. memory is 11.5 GB. * Witness Printer took 103.97 ms. Allocated memory is still 1.4 GB. Free memory was 995.0 MB in the beginning and 984.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 675]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 675]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 675]: 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: 86]: Loop Invariant Derived loop invariant: (((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && splverifierCounter == 0bv32 - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 756]: Loop Invariant Derived loop invariant: (((((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || ((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 1bv32 == \result)) || ((((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 756]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: ((((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && \result == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && splverifierCounter == 0bv32 - InvariantResult [Line: 756]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 767]: Loop Invariant Derived loop invariant: ((1bv32 == \result && ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || ((((1bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && splverifierCounter == 0bv32)) || ((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 1bv32 == \result) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 86]: 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: 86]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: ((1bv32 == \result && 1bv32 == \result && ((1bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || (((splverifierCounter == 0bv32 && (0bv32 == pumpRunning && 0bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result)) || (((2bv32 == waterLevel && splverifierCounter == 0bv32) && (0bv32 == pumpRunning && 0bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) - InvariantResult [Line: 1001]: Loop Invariant Derived loop invariant: ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 929]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 690]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: ((((((waterLevel == tmp && waterLevel == \result) && 0bv32 == pumpRunning) && 0bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && splverifierCounter == 0bv32 - InvariantResult [Line: 929]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 760]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: ((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && splverifierCounter == 0bv32) || (1bv32 == \result && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 && ((1bv32 == \result && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) - InvariantResult [Line: 929]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 760]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 929]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) || ((((((waterLevel == tmp && 1bv32 == pumpRunning) && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && splverifierCounter == 0bv32) && 2bv32 == \result)) || ((((((waterLevel == tmp && 0bv32 == pumpRunning) && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && splverifierCounter == 0bv32) && 2bv32 == \result) - InvariantResult [Line: 625]: Loop Invariant Derived loop invariant: ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 760]: Loop Invariant Derived loop invariant: ((((2bv32 == waterLevel && splverifierCounter == 0bv32) && (0bv32 == pumpRunning && 0bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) || ((((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 1bv32 == \result)) || (1bv32 == \result && (splverifierCounter == 0bv32 && (0bv32 == pumpRunning && 0bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 929]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 647]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 929]: Loop Invariant Derived loop invariant: ((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && splverifierCounter == 0bv32) || (((((((tmp___0 == 0bv32 && 0bv32 == pumpRunning) && \result == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 948]: Loop Invariant Derived loop invariant: (((((((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && \result == 0bv32) && tmp == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32 - InvariantResult [Line: 948]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 729]: Loop Invariant Derived loop invariant: (((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 1bv32 == \result) || ((((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result)) || ((((1bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 1bv32 == \result) - InvariantResult [Line: 948]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 711]: Loop Invariant Derived loop invariant: (((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 1bv32 == \result) || ((((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result)) || ((((1bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 1bv32 == \result) - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 873]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: ((((((1bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 2bv32 == \result) && 1bv32 == \result) || (((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && splverifierCounter == 0bv32) && 2bv32 == \result)) || (waterLevel == \result && (((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 1bv32 == \result) - InvariantResult [Line: 873]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 580]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 873]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 873]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 154]: Loop Invariant Derived loop invariant: ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 767]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 767]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 701]: Loop Invariant Derived loop invariant: (((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 1bv32 == \result) || ((((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result)) || ((((1bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 1bv32 == \result) - InvariantResult [Line: 657]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 873]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 873]: Loop Invariant Derived loop invariant: (((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && splverifierCounter == 0bv32 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 144 locations, 3 error locations. Result: SAFE, OverallTime: 17.9s, OverallIterations: 16, TraceHistogramMax: 4, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.2s, HoareTripleCheckerStatistics: 2489 SDtfs, 4262 SDslu, 4875 SDs, 0 SdLazy, 847 SolverSat, 206 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2804 GetRequests, 2673 SyntacticMatches, 4 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=466occurred 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: 0.4s AutomataMinimizationTime, 16 MinimizatonAttempts, 2001 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 62 LocationsWithAnnotation, 62 PreInvPairs, 175 NumberOfFragments, 941 HoareAnnotationTreeSize, 62 FomulaSimplifications, 3859315 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 62 FomulaSimplificationsInter, 144132 FormulaSimplificationTreeSizeReductionInter, 3.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 1383 NumberOfCodeBlocks, 1383 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 2726 ConstructedInterpolants, 0 QuantifiedInterpolants, 504757 SizeOfPredicates, 79 NumberOfNonLiveVariables, 5046 ConjunctsInSsa, 114 ConjunctsInUnsatCore, 40 InterpolantComputations, 26 PerfectInterpolantSequences, 1938/2138 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...