./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product50.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_7c520b29-1416-456a-97c2-9528ae516522/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product50.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/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 c6fd2ec47fce99d621bc8e726cd390df6cdcdca1 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_7c520b29-1416-456a-97c2-9528ae516522/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product50.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/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 c6fd2ec47fce99d621bc8e726cd390df6cdcdca1 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 11:25:50,394 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:25:50,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:25:50,406 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:25:50,406 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:25:50,407 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:25:50,409 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:25:50,410 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:25:50,412 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:25:50,412 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:25:50,414 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:25:50,415 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:25:50,415 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:25:50,416 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:25:50,417 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:25:50,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:25:50,419 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:25:50,419 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:25:50,421 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:25:50,423 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:25:50,424 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:25:50,425 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:25:50,426 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:25:50,427 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:25:50,429 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:25:50,429 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:25:50,429 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:25:50,430 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:25:50,431 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:25:50,431 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:25:50,432 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:25:50,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:25:50,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:25:50,434 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:25:50,435 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:25:50,435 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:25:50,436 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:25:50,436 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:25:50,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:25:50,437 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:25:50,437 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:25:50,438 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:25:50,450 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:25:50,450 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:25:50,451 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:25:50,451 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:25:50,451 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:25:50,451 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:25:50,452 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:25:50,452 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:25:50,452 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:25:50,452 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:25:50,452 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:25:50,453 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:25:50,454 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:25:50,454 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:25:50,454 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:25:50,454 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:25:50,454 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:25:50,455 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:25:50,455 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:25:50,455 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:25:50,455 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:25:50,455 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:25:50,455 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:25:50,456 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:25:50,456 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:25:50,456 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:25:50,456 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:25:50,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:25:50,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:25:50,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:25:50,458 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:25:50,458 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:25:50,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:25:50,458 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:25:50,458 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:25:50,458 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_7c520b29-1416-456a-97c2-9528ae516522/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 -> c6fd2ec47fce99d621bc8e726cd390df6cdcdca1 [2019-10-22 11:25:50,486 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:25:50,496 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:25:50,499 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:25:50,501 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:25:50,501 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:25:50,502 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec5_product50.cil.c [2019-10-22 11:25:50,552 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/bin/utaipan/data/27e02a716/9faff5d951174a82a896bc2ea9d4cb53/FLAG1f80d022a [2019-10-22 11:25:50,972 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:25:50,981 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/sv-benchmarks/c/product-lines/minepump_spec5_product50.cil.c [2019-10-22 11:25:50,992 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/bin/utaipan/data/27e02a716/9faff5d951174a82a896bc2ea9d4cb53/FLAG1f80d022a [2019-10-22 11:25:51,003 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/bin/utaipan/data/27e02a716/9faff5d951174a82a896bc2ea9d4cb53 [2019-10-22 11:25:51,006 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:25:51,007 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:25:51,008 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:51,009 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:25:51,012 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:25:51,013 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:51" (1/1) ... [2019-10-22 11:25:51,016 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2de3efe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:51, skipping insertion in model container [2019-10-22 11:25:51,016 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:51" (1/1) ... [2019-10-22 11:25:51,024 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:25:51,064 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:25:51,423 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:51,440 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:25:51,520 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:51,541 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:25:51,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:51 WrapperNode [2019-10-22 11:25:51,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:51,542 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:51,542 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:25:51,543 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:25:51,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:51" (1/1) ... [2019-10-22 11:25:51,564 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:51" (1/1) ... [2019-10-22 11:25:51,602 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:51,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:25:51,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:25:51,603 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:25:51,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:51" (1/1) ... [2019-10-22 11:25:51,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:51" (1/1) ... [2019-10-22 11:25:51,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:51" (1/1) ... [2019-10-22 11:25:51,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:51" (1/1) ... [2019-10-22 11:25:51,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:51" (1/1) ... [2019-10-22 11:25:51,632 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:51" (1/1) ... [2019-10-22 11:25:51,635 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:51" (1/1) ... [2019-10-22 11:25:51,638 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:25:51,639 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:25:51,639 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:25:51,639 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:25:51,640 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/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 11:25:51,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:25:51,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 11:25:51,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:25:51,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:25:52,499 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:25:52,500 INFO L284 CfgBuilder]: Removed 172 assume(true) statements. [2019-10-22 11:25:52,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:52 BoogieIcfgContainer [2019-10-22 11:25:52,501 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:25:52,502 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:25:52,502 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:25:52,505 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:25:52,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:25:51" (1/3) ... [2019-10-22 11:25:52,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f9c091 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:52, skipping insertion in model container [2019-10-22 11:25:52,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:51" (2/3) ... [2019-10-22 11:25:52,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f9c091 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:52, skipping insertion in model container [2019-10-22 11:25:52,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:52" (3/3) ... [2019-10-22 11:25:52,509 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product50.cil.c [2019-10-22 11:25:52,518 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:25:52,526 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:25:52,536 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:25:52,558 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:25:52,558 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:25:52,558 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:25:52,559 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:25:52,559 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:25:52,559 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:25:52,559 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:25:52,559 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:25:52,575 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states. [2019-10-22 11:25:52,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:25:52,581 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:52,582 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 11:25:52,583 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:52,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:52,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1143595135, now seen corresponding path program 1 times [2019-10-22 11:25:52,596 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:52,597 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447288151] [2019-10-22 11:25:52,597 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:52,597 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:52,597 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:52,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:52,786 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 11:25:52,787 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447288151] [2019-10-22 11:25:52,788 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:52,789 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:25:52,789 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336916762] [2019-10-22 11:25:52,793 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:25:52,795 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:52,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:25:52,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:25:52,810 INFO L87 Difference]: Start difference. First operand 126 states. Second operand 2 states. [2019-10-22 11:25:52,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:52,840 INFO L93 Difference]: Finished difference Result 245 states and 370 transitions. [2019-10-22 11:25:52,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:25:52,841 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2019-10-22 11:25:52,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:52,852 INFO L225 Difference]: With dead ends: 245 [2019-10-22 11:25:52,852 INFO L226 Difference]: Without dead ends: 122 [2019-10-22 11:25:52,855 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 11:25:52,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2019-10-22 11:25:52,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2019-10-22 11:25:52,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2019-10-22 11:25:52,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 177 transitions. [2019-10-22 11:25:52,896 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 177 transitions. Word has length 19 [2019-10-22 11:25:52,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:52,896 INFO L462 AbstractCegarLoop]: Abstraction has 122 states and 177 transitions. [2019-10-22 11:25:52,896 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:25:52,896 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 177 transitions. [2019-10-22 11:25:52,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 11:25:52,897 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:52,897 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 11:25:52,898 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:52,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:52,898 INFO L82 PathProgramCache]: Analyzing trace with hash 662424418, now seen corresponding path program 1 times [2019-10-22 11:25:52,898 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:52,898 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80879071] [2019-10-22 11:25:52,898 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:52,899 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:52,899 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:52,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:53,023 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 11:25:53,024 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80879071] [2019-10-22 11:25:53,024 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:53,024 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:25:53,024 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109078023] [2019-10-22 11:25:53,025 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:25:53,026 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:53,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:25:53,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:25:53,026 INFO L87 Difference]: Start difference. First operand 122 states and 177 transitions. Second operand 3 states. [2019-10-22 11:25:53,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:53,048 INFO L93 Difference]: Finished difference Result 122 states and 177 transitions. [2019-10-22 11:25:53,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:25:53,049 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-10-22 11:25:53,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:53,049 INFO L225 Difference]: With dead ends: 122 [2019-10-22 11:25:53,050 INFO L226 Difference]: Without dead ends: 51 [2019-10-22 11:25:53,050 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 11:25:53,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-10-22 11:25:53,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2019-10-22 11:25:53,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-10-22 11:25:53,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 73 transitions. [2019-10-22 11:25:53,060 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 73 transitions. Word has length 20 [2019-10-22 11:25:53,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:53,060 INFO L462 AbstractCegarLoop]: Abstraction has 51 states and 73 transitions. [2019-10-22 11:25:53,061 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:25:53,061 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 73 transitions. [2019-10-22 11:25:53,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 11:25:53,061 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:53,062 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 11:25:53,062 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:53,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:53,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1983331463, now seen corresponding path program 1 times [2019-10-22 11:25:53,062 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:53,063 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677720271] [2019-10-22 11:25:53,063 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:53,063 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:53,063 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:53,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:53,151 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 11:25:53,151 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677720271] [2019-10-22 11:25:53,151 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:53,151 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:25:53,152 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904467917] [2019-10-22 11:25:53,152 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:25:53,152 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:53,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:25:53,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:25:53,153 INFO L87 Difference]: Start difference. First operand 51 states and 73 transitions. Second operand 3 states. [2019-10-22 11:25:53,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:53,181 INFO L93 Difference]: Finished difference Result 95 states and 139 transitions. [2019-10-22 11:25:53,181 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:25:53,182 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-10-22 11:25:53,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:53,182 INFO L225 Difference]: With dead ends: 95 [2019-10-22 11:25:53,183 INFO L226 Difference]: Without dead ends: 51 [2019-10-22 11:25:53,183 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 11:25:53,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-10-22 11:25:53,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2019-10-22 11:25:53,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-10-22 11:25:53,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 72 transitions. [2019-10-22 11:25:53,190 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 72 transitions. Word has length 26 [2019-10-22 11:25:53,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:53,191 INFO L462 AbstractCegarLoop]: Abstraction has 51 states and 72 transitions. [2019-10-22 11:25:53,191 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:25:53,191 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 72 transitions. [2019-10-22 11:25:53,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 11:25:53,197 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:53,197 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 11:25:53,198 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:53,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:53,198 INFO L82 PathProgramCache]: Analyzing trace with hash -630940105, now seen corresponding path program 1 times [2019-10-22 11:25:53,198 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:53,199 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729175048] [2019-10-22 11:25:53,199 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:53,199 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:53,199 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:53,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:53,285 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 11:25:53,285 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729175048] [2019-10-22 11:25:53,285 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:53,285 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:25:53,286 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514120732] [2019-10-22 11:25:53,286 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:25:53,286 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:53,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:25:53,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:25:53,287 INFO L87 Difference]: Start difference. First operand 51 states and 72 transitions. Second operand 3 states. [2019-10-22 11:25:53,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:53,321 INFO L93 Difference]: Finished difference Result 119 states and 171 transitions. [2019-10-22 11:25:53,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:25:53,321 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2019-10-22 11:25:53,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:53,322 INFO L225 Difference]: With dead ends: 119 [2019-10-22 11:25:53,322 INFO L226 Difference]: Without dead ends: 75 [2019-10-22 11:25:53,323 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 11:25:53,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2019-10-22 11:25:53,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 73. [2019-10-22 11:25:53,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2019-10-22 11:25:53,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 102 transitions. [2019-10-22 11:25:53,337 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 102 transitions. Word has length 28 [2019-10-22 11:25:53,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:53,337 INFO L462 AbstractCegarLoop]: Abstraction has 73 states and 102 transitions. [2019-10-22 11:25:53,337 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:25:53,337 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 102 transitions. [2019-10-22 11:25:53,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 11:25:53,338 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:53,338 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 11:25:53,338 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:53,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:53,339 INFO L82 PathProgramCache]: Analyzing trace with hash -351362712, now seen corresponding path program 1 times [2019-10-22 11:25:53,339 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:53,339 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2711140] [2019-10-22 11:25:53,339 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:53,339 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:53,339 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:53,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:53,420 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 11:25:53,420 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2711140] [2019-10-22 11:25:53,420 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:53,421 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:25:53,421 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566182178] [2019-10-22 11:25:53,421 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:25:53,421 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:53,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:25:53,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:25:53,422 INFO L87 Difference]: Start difference. First operand 73 states and 102 transitions. Second operand 5 states. [2019-10-22 11:25:53,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:53,521 INFO L93 Difference]: Finished difference Result 263 states and 373 transitions. [2019-10-22 11:25:53,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:25:53,522 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2019-10-22 11:25:53,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:53,523 INFO L225 Difference]: With dead ends: 263 [2019-10-22 11:25:53,523 INFO L226 Difference]: Without dead ends: 197 [2019-10-22 11:25:53,524 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 11:25:53,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2019-10-22 11:25:53,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 77. [2019-10-22 11:25:53,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-10-22 11:25:53,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 106 transitions. [2019-10-22 11:25:53,539 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 106 transitions. Word has length 34 [2019-10-22 11:25:53,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:53,539 INFO L462 AbstractCegarLoop]: Abstraction has 77 states and 106 transitions. [2019-10-22 11:25:53,540 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:25:53,540 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 106 transitions. [2019-10-22 11:25:53,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 11:25:53,540 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:53,542 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 11:25:53,543 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:53,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:53,546 INFO L82 PathProgramCache]: Analyzing trace with hash -1052427290, now seen corresponding path program 1 times [2019-10-22 11:25:53,546 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:53,546 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861513106] [2019-10-22 11:25:53,546 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:53,547 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:53,547 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:53,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:53,596 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 11:25:53,597 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861513106] [2019-10-22 11:25:53,597 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:53,597 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:25:53,597 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867750721] [2019-10-22 11:25:53,598 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:25:53,598 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:53,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:25:53,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:25:53,599 INFO L87 Difference]: Start difference. First operand 77 states and 106 transitions. Second operand 5 states. [2019-10-22 11:25:53,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:53,661 INFO L93 Difference]: Finished difference Result 202 states and 278 transitions. [2019-10-22 11:25:53,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:25:53,662 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2019-10-22 11:25:53,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:53,663 INFO L225 Difference]: With dead ends: 202 [2019-10-22 11:25:53,663 INFO L226 Difference]: Without dead ends: 132 [2019-10-22 11:25:53,664 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 11:25:53,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-10-22 11:25:53,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 83. [2019-10-22 11:25:53,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-10-22 11:25:53,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 112 transitions. [2019-10-22 11:25:53,677 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 112 transitions. Word has length 34 [2019-10-22 11:25:53,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:53,678 INFO L462 AbstractCegarLoop]: Abstraction has 83 states and 112 transitions. [2019-10-22 11:25:53,678 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:25:53,678 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 112 transitions. [2019-10-22 11:25:53,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 11:25:53,679 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:53,679 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 11:25:53,679 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:53,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:53,680 INFO L82 PathProgramCache]: Analyzing trace with hash -118963581, now seen corresponding path program 1 times [2019-10-22 11:25:53,680 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:53,680 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543187849] [2019-10-22 11:25:53,680 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:53,680 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:53,681 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:53,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:53,746 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 11:25:53,746 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543187849] [2019-10-22 11:25:53,746 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:53,746 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:25:53,747 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570258381] [2019-10-22 11:25:53,747 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:25:53,747 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:53,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:25:53,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:25:53,748 INFO L87 Difference]: Start difference. First operand 83 states and 112 transitions. Second operand 5 states. [2019-10-22 11:25:53,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:53,871 INFO L93 Difference]: Finished difference Result 282 states and 383 transitions. [2019-10-22 11:25:53,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:25:53,872 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2019-10-22 11:25:53,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:53,873 INFO L225 Difference]: With dead ends: 282 [2019-10-22 11:25:53,873 INFO L226 Difference]: Without dead ends: 206 [2019-10-22 11:25:53,873 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 11:25:53,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2019-10-22 11:25:53,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 82. [2019-10-22 11:25:53,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-10-22 11:25:53,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 109 transitions. [2019-10-22 11:25:53,893 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 109 transitions. Word has length 34 [2019-10-22 11:25:53,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:53,893 INFO L462 AbstractCegarLoop]: Abstraction has 82 states and 109 transitions. [2019-10-22 11:25:53,893 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:25:53,893 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 109 transitions. [2019-10-22 11:25:53,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 11:25:53,894 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:53,894 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 11:25:53,894 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:53,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:53,895 INFO L82 PathProgramCache]: Analyzing trace with hash -938168726, now seen corresponding path program 1 times [2019-10-22 11:25:53,895 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:53,895 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617383150] [2019-10-22 11:25:53,895 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:53,896 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:53,896 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:53,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:53,945 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 11:25:53,945 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617383150] [2019-10-22 11:25:53,945 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:53,945 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:25:53,945 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28107811] [2019-10-22 11:25:53,946 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:25:53,946 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:53,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:25:53,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:25:53,947 INFO L87 Difference]: Start difference. First operand 82 states and 109 transitions. Second operand 3 states. [2019-10-22 11:25:53,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:53,975 INFO L93 Difference]: Finished difference Result 185 states and 247 transitions. [2019-10-22 11:25:53,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:25:53,976 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2019-10-22 11:25:53,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:53,977 INFO L225 Difference]: With dead ends: 185 [2019-10-22 11:25:53,977 INFO L226 Difference]: Without dead ends: 110 [2019-10-22 11:25:53,978 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:25:53,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-10-22 11:25:53,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-10-22 11:25:53,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-10-22 11:25:53,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 143 transitions. [2019-10-22 11:25:53,990 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 143 transitions. Word has length 34 [2019-10-22 11:25:53,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:53,991 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 143 transitions. [2019-10-22 11:25:53,991 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:25:53,991 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 143 transitions. [2019-10-22 11:25:53,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-22 11:25:53,992 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:53,992 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:53,992 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:53,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:53,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1960852394, now seen corresponding path program 1 times [2019-10-22 11:25:53,993 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:53,993 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48829586] [2019-10-22 11:25:53,993 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:53,993 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:53,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:54,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:54,082 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 11:25:54,083 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48829586] [2019-10-22 11:25:54,083 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:54,083 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:25:54,083 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906220079] [2019-10-22 11:25:54,083 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:25:54,084 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:54,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:25:54,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:25:54,084 INFO L87 Difference]: Start difference. First operand 110 states and 143 transitions. Second operand 6 states. [2019-10-22 11:25:54,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:54,281 INFO L93 Difference]: Finished difference Result 413 states and 551 transitions. [2019-10-22 11:25:54,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:25:54,282 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2019-10-22 11:25:54,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:54,283 INFO L225 Difference]: With dead ends: 413 [2019-10-22 11:25:54,283 INFO L226 Difference]: Without dead ends: 338 [2019-10-22 11:25:54,284 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 11:25:54,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2019-10-22 11:25:54,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 155. [2019-10-22 11:25:54,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2019-10-22 11:25:54,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 199 transitions. [2019-10-22 11:25:54,308 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 199 transitions. Word has length 35 [2019-10-22 11:25:54,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:54,308 INFO L462 AbstractCegarLoop]: Abstraction has 155 states and 199 transitions. [2019-10-22 11:25:54,308 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:25:54,308 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 199 transitions. [2019-10-22 11:25:54,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-10-22 11:25:54,314 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:54,314 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:54,314 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:54,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:54,314 INFO L82 PathProgramCache]: Analyzing trace with hash -503867042, now seen corresponding path program 1 times [2019-10-22 11:25:54,315 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:54,315 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860213281] [2019-10-22 11:25:54,315 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:54,315 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:54,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:54,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:54,384 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 11:25:54,384 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860213281] [2019-10-22 11:25:54,385 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1579994425] [2019-10-22 11:25:54,385 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/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 11:25:54,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:54,507 INFO L256 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:25:54,514 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:25:54,560 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 11:25:54,562 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:25:54,590 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 11:25:54,596 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1985193253] [2019-10-22 11:25:54,601 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 59 [2019-10-22 11:25:54,649 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-10-22 11:25:54,650 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-22 11:25:55,051 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:25:55,052 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 11:25:55,057 INFO L168 Benchmark]: Toolchain (without parser) took 4049.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 940.5 MB in the beginning and 981.4 MB in the end (delta: -40.9 MB). Peak memory consumption was 99.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:55,058 INFO L168 Benchmark]: CDTParser took 0.21 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 11:25:55,058 INFO L168 Benchmark]: CACSL2BoogieTranslator took 533.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -181.9 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:55,058 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:55,059 INFO L168 Benchmark]: Boogie Preprocessor took 35.92 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 11:25:55,059 INFO L168 Benchmark]: RCFGBuilder took 862.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 70.7 MB). Peak memory consumption was 70.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:55,059 INFO L168 Benchmark]: TraceAbstraction took 2553.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 981.4 MB in the end (delta: 64.9 MB). Peak memory consumption was 64.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:55,063 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 533.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -181.9 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 60.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.92 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 862.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 70.7 MB). Peak memory consumption was 70.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2553.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 981.4 MB in the end (delta: 64.9 MB). Peak memory consumption was 64.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: inappropriate decl info IMPLEMENTATION de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: inappropriate decl info IMPLEMENTATION: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 11:25:57,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:25:57,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:25:57,165 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:25:57,165 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:25:57,166 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:25:57,167 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:25:57,168 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:25:57,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:25:57,173 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:25:57,173 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:25:57,174 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:25:57,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:25:57,175 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:25:57,176 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:25:57,177 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:25:57,178 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:25:57,179 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:25:57,180 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:25:57,182 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:25:57,183 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:25:57,184 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:25:57,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:25:57,186 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:25:57,188 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:25:57,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:25:57,188 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:25:57,189 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:25:57,190 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:25:57,191 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:25:57,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:25:57,191 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:25:57,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:25:57,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:25:57,194 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:25:57,194 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:25:57,195 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:25:57,195 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:25:57,195 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:25:57,196 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:25:57,196 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:25:57,197 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:25:57,209 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:25:57,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:25:57,210 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:25:57,210 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:25:57,210 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:25:57,210 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:25:57,210 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:25:57,210 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:25:57,211 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:25:57,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:25:57,211 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:25:57,212 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:25:57,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:25:57,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:25:57,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:25:57,212 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:25:57,212 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:25:57,212 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:25:57,212 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:25:57,213 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:25:57,213 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:25:57,213 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:25:57,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:25:57,214 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:25:57,214 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:25:57,214 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:25:57,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:25:57,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:25:57,215 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:25:57,215 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:25:57,215 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:25:57,215 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:25:57,215 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:25:57,215 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:25:57,215 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_7c520b29-1416-456a-97c2-9528ae516522/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 -> c6fd2ec47fce99d621bc8e726cd390df6cdcdca1 [2019-10-22 11:25:57,251 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:25:57,264 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:25:57,268 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:25:57,271 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:25:57,271 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:25:57,272 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec5_product50.cil.c [2019-10-22 11:25:57,325 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/bin/utaipan/data/6cefd6344/a7e58101ddf342ec9d623ce364b913f0/FLAG77c2d8835 [2019-10-22 11:25:57,755 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:25:57,755 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/sv-benchmarks/c/product-lines/minepump_spec5_product50.cil.c [2019-10-22 11:25:57,768 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/bin/utaipan/data/6cefd6344/a7e58101ddf342ec9d623ce364b913f0/FLAG77c2d8835 [2019-10-22 11:25:58,131 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/bin/utaipan/data/6cefd6344/a7e58101ddf342ec9d623ce364b913f0 [2019-10-22 11:25:58,134 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:25:58,135 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:25:58,138 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:58,138 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:25:58,141 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:25:58,142 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:58" (1/1) ... [2019-10-22 11:25:58,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6348440d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:58, skipping insertion in model container [2019-10-22 11:25:58,145 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:58" (1/1) ... [2019-10-22 11:25:58,152 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:25:58,198 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:25:58,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:58,667 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:25:58,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:58,805 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:25:58,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:58 WrapperNode [2019-10-22 11:25:58,806 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:58,807 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:58,807 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:25:58,807 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:25:58,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:58" (1/1) ... [2019-10-22 11:25:58,832 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:58" (1/1) ... [2019-10-22 11:25:58,870 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:58,870 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:25:58,870 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:25:58,870 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:25:58,880 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:58" (1/1) ... [2019-10-22 11:25:58,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:58" (1/1) ... [2019-10-22 11:25:58,885 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:58" (1/1) ... [2019-10-22 11:25:58,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:58" (1/1) ... [2019-10-22 11:25:58,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:58" (1/1) ... [2019-10-22 11:25:58,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:58" (1/1) ... [2019-10-22 11:25:58,922 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:58" (1/1) ... [2019-10-22 11:25:58,926 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:25:58,926 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:25:58,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:25:58,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:25:58,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/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 11:25:58,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:25:58,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-10-22 11:25:58,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:25:58,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:25:59,899 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:25:59,899 INFO L284 CfgBuilder]: Removed 172 assume(true) statements. [2019-10-22 11:25:59,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:59 BoogieIcfgContainer [2019-10-22 11:25:59,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:25:59,901 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:25:59,901 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:25:59,904 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:25:59,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:25:58" (1/3) ... [2019-10-22 11:25:59,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a3ead5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:59, skipping insertion in model container [2019-10-22 11:25:59,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:58" (2/3) ... [2019-10-22 11:25:59,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a3ead5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:59, skipping insertion in model container [2019-10-22 11:25:59,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:59" (3/3) ... [2019-10-22 11:25:59,907 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product50.cil.c [2019-10-22 11:25:59,916 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:25:59,926 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:25:59,936 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:25:59,964 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:25:59,964 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:25:59,965 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:25:59,965 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:25:59,969 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:25:59,969 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:25:59,969 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:25:59,970 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:25:59,984 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states. [2019-10-22 11:25:59,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:25:59,993 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:59,994 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 11:25:59,996 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:00,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:00,003 INFO L82 PathProgramCache]: Analyzing trace with hash -1143595135, now seen corresponding path program 1 times [2019-10-22 11:26:00,014 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:00,014 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1735376703] [2019-10-22 11:26:00,015 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/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 11:26:00,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:00,230 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-22 11:26:00,235 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:00,250 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 11:26:00,250 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:00,257 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 11:26:00,263 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1735376703] [2019-10-22 11:26:00,264 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:00,264 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 11:26:00,264 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986582502] [2019-10-22 11:26:00,269 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:26:00,270 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:00,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:26:00,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:26:00,285 INFO L87 Difference]: Start difference. First operand 126 states. Second operand 2 states. [2019-10-22 11:26:00,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:00,321 INFO L93 Difference]: Finished difference Result 245 states and 370 transitions. [2019-10-22 11:26:00,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:26:00,323 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2019-10-22 11:26:00,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:00,338 INFO L225 Difference]: With dead ends: 245 [2019-10-22 11:26:00,338 INFO L226 Difference]: Without dead ends: 122 [2019-10-22 11:26:00,343 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 11:26:00,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2019-10-22 11:26:00,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2019-10-22 11:26:00,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2019-10-22 11:26:00,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 177 transitions. [2019-10-22 11:26:00,390 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 177 transitions. Word has length 19 [2019-10-22 11:26:00,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:00,391 INFO L462 AbstractCegarLoop]: Abstraction has 122 states and 177 transitions. [2019-10-22 11:26:00,391 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:26:00,391 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 177 transitions. [2019-10-22 11:26:00,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 11:26:00,392 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:00,392 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 11:26:00,593 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:26:00,594 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:00,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:00,594 INFO L82 PathProgramCache]: Analyzing trace with hash 662424418, now seen corresponding path program 1 times [2019-10-22 11:26:00,595 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:00,595 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1700054564] [2019-10-22 11:26:00,596 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/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 11:26:00,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:00,778 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:26:00,779 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:00,799 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 11:26:00,800 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:00,808 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 11:26:00,809 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1700054564] [2019-10-22 11:26:00,809 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:00,809 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-10-22 11:26:00,809 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094747252] [2019-10-22 11:26:00,810 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:26:00,811 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:00,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:26:00,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:26:00,811 INFO L87 Difference]: Start difference. First operand 122 states and 177 transitions. Second operand 4 states. [2019-10-22 11:26:00,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:00,873 INFO L93 Difference]: Finished difference Result 237 states and 347 transitions. [2019-10-22 11:26:00,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:26:00,874 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2019-10-22 11:26:00,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:00,875 INFO L225 Difference]: With dead ends: 237 [2019-10-22 11:26:00,875 INFO L226 Difference]: Without dead ends: 122 [2019-10-22 11:26:00,876 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 11:26:00,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2019-10-22 11:26:00,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2019-10-22 11:26:00,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2019-10-22 11:26:00,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 174 transitions. [2019-10-22 11:26:00,892 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 174 transitions. Word has length 20 [2019-10-22 11:26:00,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:00,892 INFO L462 AbstractCegarLoop]: Abstraction has 122 states and 174 transitions. [2019-10-22 11:26:00,892 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:26:00,892 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 174 transitions. [2019-10-22 11:26:00,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 11:26:00,895 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:00,895 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 11:26:01,096 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:26:01,096 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:01,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:01,097 INFO L82 PathProgramCache]: Analyzing trace with hash -680173088, now seen corresponding path program 1 times [2019-10-22 11:26:01,097 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:01,098 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1129894047] [2019-10-22 11:26:01,098 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/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 11:26:01,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:01,232 INFO L256 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:26:01,233 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:01,241 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 11:26:01,241 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:01,243 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 11:26:01,244 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1129894047] [2019-10-22 11:26:01,244 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:01,244 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-22 11:26:01,244 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786888351] [2019-10-22 11:26:01,245 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:26:01,245 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:01,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:26:01,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:01,246 INFO L87 Difference]: Start difference. First operand 122 states and 174 transitions. Second operand 3 states. [2019-10-22 11:26:01,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:01,413 INFO L93 Difference]: Finished difference Result 292 states and 415 transitions. [2019-10-22 11:26:01,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:26:01,413 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2019-10-22 11:26:01,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:01,415 INFO L225 Difference]: With dead ends: 292 [2019-10-22 11:26:01,415 INFO L226 Difference]: Without dead ends: 177 [2019-10-22 11:26:01,415 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 11:26:01,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2019-10-22 11:26:01,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 171. [2019-10-22 11:26:01,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2019-10-22 11:26:01,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 236 transitions. [2019-10-22 11:26:01,450 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 236 transitions. Word has length 22 [2019-10-22 11:26:01,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:01,450 INFO L462 AbstractCegarLoop]: Abstraction has 171 states and 236 transitions. [2019-10-22 11:26:01,450 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:26:01,451 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 236 transitions. [2019-10-22 11:26:01,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 11:26:01,451 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:01,451 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] [2019-10-22 11:26:01,652 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:26:01,652 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:01,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:01,653 INFO L82 PathProgramCache]: Analyzing trace with hash 623442001, now seen corresponding path program 1 times [2019-10-22 11:26:01,653 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:01,653 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [10871798] [2019-10-22 11:26:01,654 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/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 11:26:01,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:01,810 INFO L256 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:26:01,812 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:01,834 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 11:26:01,834 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:01,853 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 11:26:01,853 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [10871798] [2019-10-22 11:26:01,854 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:01,854 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-10-22 11:26:01,854 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694381030] [2019-10-22 11:26:01,854 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:26:01,855 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:01,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:26:01,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:26:01,855 INFO L87 Difference]: Start difference. First operand 171 states and 236 transitions. Second operand 6 states. [2019-10-22 11:26:02,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:02,009 INFO L93 Difference]: Finished difference Result 639 states and 881 transitions. [2019-10-22 11:26:02,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:26:02,010 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2019-10-22 11:26:02,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:02,013 INFO L225 Difference]: With dead ends: 639 [2019-10-22 11:26:02,013 INFO L226 Difference]: Without dead ends: 475 [2019-10-22 11:26:02,014 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:26:02,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2019-10-22 11:26:02,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 183. [2019-10-22 11:26:02,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2019-10-22 11:26:02,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 248 transitions. [2019-10-22 11:26:02,052 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 248 transitions. Word has length 28 [2019-10-22 11:26:02,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:02,053 INFO L462 AbstractCegarLoop]: Abstraction has 183 states and 248 transitions. [2019-10-22 11:26:02,053 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:26:02,053 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 248 transitions. [2019-10-22 11:26:02,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 11:26:02,054 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:02,054 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 11:26:02,257 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:26:02,257 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:02,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:02,257 INFO L82 PathProgramCache]: Analyzing trace with hash -77622577, now seen corresponding path program 1 times [2019-10-22 11:26:02,258 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:02,258 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [292914523] [2019-10-22 11:26:02,258 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/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 11:26:02,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:02,391 INFO L256 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:26:02,393 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:02,417 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 11:26:02,417 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:02,421 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 11:26:02,422 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [292914523] [2019-10-22 11:26:02,422 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:02,422 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:26:02,422 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952404529] [2019-10-22 11:26:02,423 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:26:02,423 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:02,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:26:02,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:26:02,424 INFO L87 Difference]: Start difference. First operand 183 states and 248 transitions. Second operand 5 states. [2019-10-22 11:26:02,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:02,635 INFO L93 Difference]: Finished difference Result 490 states and 652 transitions. [2019-10-22 11:26:02,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:26:02,636 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2019-10-22 11:26:02,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:02,637 INFO L225 Difference]: With dead ends: 490 [2019-10-22 11:26:02,638 INFO L226 Difference]: Without dead ends: 314 [2019-10-22 11:26:02,638 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:26:02,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2019-10-22 11:26:02,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 201. [2019-10-22 11:26:02,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2019-10-22 11:26:02,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 266 transitions. [2019-10-22 11:26:02,684 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 266 transitions. Word has length 28 [2019-10-22 11:26:02,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:02,684 INFO L462 AbstractCegarLoop]: Abstraction has 201 states and 266 transitions. [2019-10-22 11:26:02,684 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:26:02,684 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 266 transitions. [2019-10-22 11:26:02,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 11:26:02,685 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:02,685 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 11:26:02,888 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:26:02,888 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:02,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:02,888 INFO L82 PathProgramCache]: Analyzing trace with hash 855841132, now seen corresponding path program 1 times [2019-10-22 11:26:02,889 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:02,889 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1130147842] [2019-10-22 11:26:02,889 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/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 11:26:03,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:03,024 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:26:03,025 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:03,042 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 11:26:03,043 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:03,046 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 11:26:03,046 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1130147842] [2019-10-22 11:26:03,046 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:03,047 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:26:03,047 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212114546] [2019-10-22 11:26:03,047 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:26:03,047 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:03,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:26:03,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:26:03,048 INFO L87 Difference]: Start difference. First operand 201 states and 266 transitions. Second operand 5 states. [2019-10-22 11:26:03,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:03,384 INFO L93 Difference]: Finished difference Result 696 states and 911 transitions. [2019-10-22 11:26:03,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:26:03,385 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2019-10-22 11:26:03,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:03,387 INFO L225 Difference]: With dead ends: 696 [2019-10-22 11:26:03,387 INFO L226 Difference]: Without dead ends: 502 [2019-10-22 11:26:03,388 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:26:03,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2019-10-22 11:26:03,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 198. [2019-10-22 11:26:03,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2019-10-22 11:26:03,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 257 transitions. [2019-10-22 11:26:03,411 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 257 transitions. Word has length 28 [2019-10-22 11:26:03,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:03,411 INFO L462 AbstractCegarLoop]: Abstraction has 198 states and 257 transitions. [2019-10-22 11:26:03,411 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:26:03,411 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 257 transitions. [2019-10-22 11:26:03,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 11:26:03,412 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:03,412 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 11:26:03,613 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:26:03,613 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:03,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:03,613 INFO L82 PathProgramCache]: Analyzing trace with hash 36635987, now seen corresponding path program 1 times [2019-10-22 11:26:03,614 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:03,614 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [280070068] [2019-10-22 11:26:03,614 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/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 11:26:03,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:03,850 INFO L256 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:26:03,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:03,861 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 11:26:03,861 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:03,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:03,872 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [280070068] [2019-10-22 11:26:03,872 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:03,872 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-10-22 11:26:03,872 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774583168] [2019-10-22 11:26:03,872 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:26:03,873 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:03,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:26:03,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:26:03,873 INFO L87 Difference]: Start difference. First operand 198 states and 257 transitions. Second operand 4 states. [2019-10-22 11:26:03,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:03,887 INFO L93 Difference]: Finished difference Result 198 states and 257 transitions. [2019-10-22 11:26:03,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:26:03,887 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2019-10-22 11:26:03,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:03,888 INFO L225 Difference]: With dead ends: 198 [2019-10-22 11:26:03,888 INFO L226 Difference]: Without dead ends: 82 [2019-10-22 11:26:03,889 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:26:03,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2019-10-22 11:26:03,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2019-10-22 11:26:03,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-10-22 11:26:03,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 109 transitions. [2019-10-22 11:26:03,898 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 109 transitions. Word has length 28 [2019-10-22 11:26:03,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:03,899 INFO L462 AbstractCegarLoop]: Abstraction has 82 states and 109 transitions. [2019-10-22 11:26:03,899 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:26:03,899 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 109 transitions. [2019-10-22 11:26:03,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 11:26:03,899 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:03,900 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 11:26:04,100 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:26:04,100 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:04,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:04,101 INFO L82 PathProgramCache]: Analyzing trace with hash -938168726, now seen corresponding path program 1 times [2019-10-22 11:26:04,101 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:04,101 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [788393155] [2019-10-22 11:26:04,101 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/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 11:26:04,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:04,324 INFO L256 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:26:04,325 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:04,337 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 11:26:04,338 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:04,346 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 11:26:04,347 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [788393155] [2019-10-22 11:26:04,347 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:04,347 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-10-22 11:26:04,347 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194624019] [2019-10-22 11:26:04,348 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:26:04,348 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:04,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:26:04,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:26:04,348 INFO L87 Difference]: Start difference. First operand 82 states and 109 transitions. Second operand 4 states. [2019-10-22 11:26:04,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:04,405 INFO L93 Difference]: Finished difference Result 246 states and 331 transitions. [2019-10-22 11:26:04,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:26:04,406 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2019-10-22 11:26:04,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:04,406 INFO L225 Difference]: With dead ends: 246 [2019-10-22 11:26:04,407 INFO L226 Difference]: Without dead ends: 171 [2019-10-22 11:26:04,407 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:26:04,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2019-10-22 11:26:04,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 141. [2019-10-22 11:26:04,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2019-10-22 11:26:04,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 188 transitions. [2019-10-22 11:26:04,420 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 188 transitions. Word has length 34 [2019-10-22 11:26:04,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:04,420 INFO L462 AbstractCegarLoop]: Abstraction has 141 states and 188 transitions. [2019-10-22 11:26:04,420 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:26:04,420 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 188 transitions. [2019-10-22 11:26:04,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-22 11:26:04,421 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:04,421 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:04,621 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:26:04,622 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:04,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:04,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1960852394, now seen corresponding path program 1 times [2019-10-22 11:26:04,623 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:04,623 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1181415531] [2019-10-22 11:26:04,623 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/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 11:26:04,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:04,760 INFO L256 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:26:04,761 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:04,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:04,790 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:04,794 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 11:26:04,794 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1181415531] [2019-10-22 11:26:04,794 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:04,794 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:26:04,795 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318102850] [2019-10-22 11:26:04,795 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:26:04,795 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:04,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:26:04,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:26:04,796 INFO L87 Difference]: Start difference. First operand 141 states and 188 transitions. Second operand 6 states. [2019-10-22 11:26:05,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:05,194 INFO L93 Difference]: Finished difference Result 687 states and 926 transitions. [2019-10-22 11:26:05,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-22 11:26:05,195 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2019-10-22 11:26:05,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:05,197 INFO L225 Difference]: With dead ends: 687 [2019-10-22 11:26:05,197 INFO L226 Difference]: Without dead ends: 553 [2019-10-22 11:26:05,198 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 64 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 11:26:05,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2019-10-22 11:26:05,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 251. [2019-10-22 11:26:05,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2019-10-22 11:26:05,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 330 transitions. [2019-10-22 11:26:05,225 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 330 transitions. Word has length 35 [2019-10-22 11:26:05,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:05,225 INFO L462 AbstractCegarLoop]: Abstraction has 251 states and 330 transitions. [2019-10-22 11:26:05,225 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:26:05,226 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 330 transitions. [2019-10-22 11:26:05,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-10-22 11:26:05,226 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:05,227 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:05,427 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:26:05,428 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:05,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:05,428 INFO L82 PathProgramCache]: Analyzing trace with hash -503867042, now seen corresponding path program 1 times [2019-10-22 11:26:05,428 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:05,428 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [436264026] [2019-10-22 11:26:05,428 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/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 11:26:05,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:05,552 INFO L256 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 11:26:05,554 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:05,583 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 11:26:05,583 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:05,612 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 11:26:05,612 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [436264026] [2019-10-22 11:26:05,612 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290088244] [2019-10-22 11:26:05,613 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/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 11:26:05,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:05,713 INFO L256 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:26:05,714 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:05,721 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 11:26:05,721 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:05,729 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 11:26:05,729 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-22 11:26:05,730 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5] total 9 [2019-10-22 11:26:05,730 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751940888] [2019-10-22 11:26:05,730 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 11:26:05,730 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:05,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 11:26:05,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:26:05,731 INFO L87 Difference]: Start difference. First operand 251 states and 330 transitions. Second operand 9 states. [2019-10-22 11:26:06,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:06,113 INFO L93 Difference]: Finished difference Result 631 states and 854 transitions. [2019-10-22 11:26:06,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:26:06,114 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 58 [2019-10-22 11:26:06,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:06,115 INFO L225 Difference]: With dead ends: 631 [2019-10-22 11:26:06,116 INFO L226 Difference]: Without dead ends: 387 [2019-10-22 11:26:06,116 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 227 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 11:26:06,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2019-10-22 11:26:06,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 236. [2019-10-22 11:26:06,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2019-10-22 11:26:06,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 302 transitions. [2019-10-22 11:26:06,150 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 302 transitions. Word has length 58 [2019-10-22 11:26:06,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:06,150 INFO L462 AbstractCegarLoop]: Abstraction has 236 states and 302 transitions. [2019-10-22 11:26:06,150 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 11:26:06,151 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 302 transitions. [2019-10-22 11:26:06,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-10-22 11:26:06,153 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:06,153 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:06,554 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 11:26:06,555 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:06,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:06,555 INFO L82 PathProgramCache]: Analyzing trace with hash -2002572715, now seen corresponding path program 1 times [2019-10-22 11:26:06,555 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:06,555 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2142803541] [2019-10-22 11:26:06,555 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/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 11:26:06,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:06,707 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:26:06,709 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:06,744 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-22 11:26:06,746 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:06,754 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-22 11:26:06,755 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2142803541] [2019-10-22 11:26:06,755 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:06,755 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:26:06,755 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976938331] [2019-10-22 11:26:06,756 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:26:06,756 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:06,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:26:06,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:26:06,756 INFO L87 Difference]: Start difference. First operand 236 states and 302 transitions. Second operand 5 states. [2019-10-22 11:26:06,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:06,829 INFO L93 Difference]: Finished difference Result 584 states and 758 transitions. [2019-10-22 11:26:06,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:26:06,830 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 103 [2019-10-22 11:26:06,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:06,832 INFO L225 Difference]: With dead ends: 584 [2019-10-22 11:26:06,833 INFO L226 Difference]: Without dead ends: 355 [2019-10-22 11:26:06,833 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 202 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 11:26:06,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2019-10-22 11:26:06,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 245. [2019-10-22 11:26:06,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2019-10-22 11:26:06,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 311 transitions. [2019-10-22 11:26:06,862 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 311 transitions. Word has length 103 [2019-10-22 11:26:06,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:06,862 INFO L462 AbstractCegarLoop]: Abstraction has 245 states and 311 transitions. [2019-10-22 11:26:06,862 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:26:06,862 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 311 transitions. [2019-10-22 11:26:06,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-10-22 11:26:06,863 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:06,863 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:07,063 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:26:07,064 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:07,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:07,064 INFO L82 PathProgramCache]: Analyzing trace with hash 48411283, now seen corresponding path program 1 times [2019-10-22 11:26:07,064 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:07,064 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1695267333] [2019-10-22 11:26:07,064 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/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 11:26:07,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:07,190 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 11:26:07,192 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:07,229 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-22 11:26:07,229 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:07,271 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-22 11:26:07,272 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1695267333] [2019-10-22 11:26:07,272 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1823527281] [2019-10-22 11:26:07,272 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/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 11:26:07,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:07,389 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-22 11:26:07,391 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:07,432 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 91 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-22 11:26:07,433 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:07,550 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-22 11:26:07,550 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-22 11:26:07,550 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7, 7, 8] total 18 [2019-10-22 11:26:07,551 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296580227] [2019-10-22 11:26:07,552 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:26:07,552 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:07,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:26:07,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2019-10-22 11:26:07,555 INFO L87 Difference]: Start difference. First operand 245 states and 311 transitions. Second operand 8 states. [2019-10-22 11:26:08,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:08,018 INFO L93 Difference]: Finished difference Result 1022 states and 1304 transitions. [2019-10-22 11:26:08,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-22 11:26:08,019 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 103 [2019-10-22 11:26:08,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:08,021 INFO L225 Difference]: With dead ends: 1022 [2019-10-22 11:26:08,022 INFO L226 Difference]: Without dead ends: 784 [2019-10-22 11:26:08,023 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 401 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 11:26:08,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2019-10-22 11:26:08,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 393. [2019-10-22 11:26:08,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2019-10-22 11:26:08,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 499 transitions. [2019-10-22 11:26:08,075 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 499 transitions. Word has length 103 [2019-10-22 11:26:08,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:08,075 INFO L462 AbstractCegarLoop]: Abstraction has 393 states and 499 transitions. [2019-10-22 11:26:08,075 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:26:08,075 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 499 transitions. [2019-10-22 11:26:08,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-10-22 11:26:08,078 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:08,078 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:08,479 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 11:26:08,480 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:08,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:08,480 INFO L82 PathProgramCache]: Analyzing trace with hash 2041639512, now seen corresponding path program 1 times [2019-10-22 11:26:08,480 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:08,481 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [990245541] [2019-10-22 11:26:08,481 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/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 11:26:08,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:08,647 INFO L256 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 11:26:08,649 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:08,683 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-22 11:26:08,683 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:08,747 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-22 11:26:08,748 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [990245541] [2019-10-22 11:26:08,748 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:08,749 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 9 [2019-10-22 11:26:08,749 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597795092] [2019-10-22 11:26:08,749 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 11:26:08,750 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:08,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 11:26:08,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:26:08,751 INFO L87 Difference]: Start difference. First operand 393 states and 499 transitions. Second operand 9 states. [2019-10-22 11:26:09,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:09,105 INFO L93 Difference]: Finished difference Result 918 states and 1173 transitions. [2019-10-22 11:26:09,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 11:26:09,106 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 105 [2019-10-22 11:26:09,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:09,107 INFO L225 Difference]: With dead ends: 918 [2019-10-22 11:26:09,107 INFO L226 Difference]: Without dead ends: 532 [2019-10-22 11:26:09,108 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 205 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 11:26:09,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2019-10-22 11:26:09,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 393. [2019-10-22 11:26:09,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2019-10-22 11:26:09,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 493 transitions. [2019-10-22 11:26:09,155 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 493 transitions. Word has length 105 [2019-10-22 11:26:09,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:09,155 INFO L462 AbstractCegarLoop]: Abstraction has 393 states and 493 transitions. [2019-10-22 11:26:09,155 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 11:26:09,156 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 493 transitions. [2019-10-22 11:26:09,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-10-22 11:26:09,156 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:09,156 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:09,357 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:26:09,357 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:09,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:09,358 INFO L82 PathProgramCache]: Analyzing trace with hash -966714255, now seen corresponding path program 1 times [2019-10-22 11:26:09,358 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:09,358 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1773107540] [2019-10-22 11:26:09,358 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/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 11:26:09,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:09,514 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 11:26:09,515 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:09,554 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 11:26:09,554 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:09,597 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 11:26:09,597 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1773107540] [2019-10-22 11:26:09,597 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089835322] [2019-10-22 11:26:09,598 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/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 11:26:09,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:09,703 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 11:26:09,705 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:09,714 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 11:26:09,714 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:09,726 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 11:26:09,726 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-22 11:26:09,726 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7] total 9 [2019-10-22 11:26:09,727 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216170390] [2019-10-22 11:26:09,727 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 11:26:09,727 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:09,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 11:26:09,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:26:09,728 INFO L87 Difference]: Start difference. First operand 393 states and 493 transitions. Second operand 9 states. [2019-10-22 11:26:10,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:10,124 INFO L93 Difference]: Finished difference Result 929 states and 1175 transitions. [2019-10-22 11:26:10,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 11:26:10,125 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 106 [2019-10-22 11:26:10,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:10,127 INFO L225 Difference]: With dead ends: 929 [2019-10-22 11:26:10,127 INFO L226 Difference]: Without dead ends: 631 [2019-10-22 11:26:10,128 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 428 GetRequests, 416 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2019-10-22 11:26:10,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2019-10-22 11:26:10,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 451. [2019-10-22 11:26:10,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 451 states. [2019-10-22 11:26:10,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 566 transitions. [2019-10-22 11:26:10,181 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 566 transitions. Word has length 106 [2019-10-22 11:26:10,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:10,181 INFO L462 AbstractCegarLoop]: Abstraction has 451 states and 566 transitions. [2019-10-22 11:26:10,181 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 11:26:10,181 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 566 transitions. [2019-10-22 11:26:10,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-22 11:26:10,183 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:10,183 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:10,584 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 11:26:10,584 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:10,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:10,584 INFO L82 PathProgramCache]: Analyzing trace with hash 212371126, now seen corresponding path program 1 times [2019-10-22 11:26:10,585 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:10,585 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1928760439] [2019-10-22 11:26:10,585 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/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 11:26:10,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:10,864 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:26:10,865 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:10,891 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 19 proven. 84 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-22 11:26:10,891 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:10,948 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 19 proven. 84 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-22 11:26:10,948 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1928760439] [2019-10-22 11:26:10,948 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520801672] [2019-10-22 11:26:10,948 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/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 11:26:11,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:11,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 12 conjunts are in the unsatisfiable core [2019-10-22 11:26:11,083 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:11,194 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 71 proven. 6 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2019-10-22 11:26:11,194 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:11,259 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:26:11,273 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-22 11:26:11,273 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-22 11:26:11,274 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 4, 7] total 15 [2019-10-22 11:26:11,274 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667015391] [2019-10-22 11:26:11,274 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:26:11,277 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:11,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:26:11,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2019-10-22 11:26:11,278 INFO L87 Difference]: Start difference. First operand 451 states and 566 transitions. Second operand 5 states. [2019-10-22 11:26:11,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:11,649 INFO L93 Difference]: Finished difference Result 927 states and 1162 transitions. [2019-10-22 11:26:11,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:26:11,650 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 108 [2019-10-22 11:26:11,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:11,652 INFO L225 Difference]: With dead ends: 927 [2019-10-22 11:26:11,652 INFO L226 Difference]: Without dead ends: 565 [2019-10-22 11:26:11,653 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 413 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2019-10-22 11:26:11,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2019-10-22 11:26:11,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 397. [2019-10-22 11:26:11,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2019-10-22 11:26:11,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 496 transitions. [2019-10-22 11:26:11,706 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 496 transitions. Word has length 108 [2019-10-22 11:26:11,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:11,707 INFO L462 AbstractCegarLoop]: Abstraction has 397 states and 496 transitions. [2019-10-22 11:26:11,707 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:26:11,707 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 496 transitions. [2019-10-22 11:26:11,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-22 11:26:11,709 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:11,710 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:12,110 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 11:26:12,111 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:12,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:12,111 INFO L82 PathProgramCache]: Analyzing trace with hash 891643380, now seen corresponding path program 1 times [2019-10-22 11:26:12,111 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:12,111 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [88785020] [2019-10-22 11:26:12,111 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/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 11:26:12,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:12,247 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 11:26:12,249 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:12,279 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-22 11:26:12,279 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:12,313 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-22 11:26:12,314 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [88785020] [2019-10-22 11:26:12,314 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:12,314 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 9 [2019-10-22 11:26:12,314 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802026032] [2019-10-22 11:26:12,314 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 11:26:12,315 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:12,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 11:26:12,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:26:12,315 INFO L87 Difference]: Start difference. First operand 397 states and 496 transitions. Second operand 9 states. [2019-10-22 11:26:12,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:12,419 INFO L93 Difference]: Finished difference Result 601 states and 745 transitions. [2019-10-22 11:26:12,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:26:12,419 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 108 [2019-10-22 11:26:12,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:12,420 INFO L225 Difference]: With dead ends: 601 [2019-10-22 11:26:12,420 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:26:12,421 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 209 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 11:26:12,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:26:12,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:26:12,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:26:12,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:26:12,421 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 108 [2019-10-22 11:26:12,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:12,421 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:26:12,421 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 11:26:12,422 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:26:12,422 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:26:12,622 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:26:12,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:26:12,924 WARN L191 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 118 [2019-10-22 11:26:13,119 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 147 [2019-10-22 11:26:13,253 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 147 [2019-10-22 11:26:13,358 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 117 [2019-10-22 11:26:13,502 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 130 [2019-10-22 11:26:13,725 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 147 [2019-10-22 11:26:14,432 WARN L191 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 28 [2019-10-22 11:26:14,647 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 28 [2019-10-22 11:26:15,226 WARN L191 SmtUtils]: Spent 571.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 26 [2019-10-22 11:26:15,717 WARN L191 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 26 [2019-10-22 11:26:16,034 WARN L191 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 31 [2019-10-22 11:26:16,196 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 24 [2019-10-22 11:26:16,548 WARN L191 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 28 [2019-10-22 11:26:16,657 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 25 [2019-10-22 11:26:17,202 WARN L191 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 26 [2019-10-22 11:26:17,578 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 25 [2019-10-22 11:26:17,835 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 30 [2019-10-22 11:26:17,848 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2019-10-22 11:26:17,848 INFO L443 ceAbstractionStarter]: For program point L104(lines 104 121) no Hoare annotation was computed. [2019-10-22 11:26:17,848 INFO L443 ceAbstractionStarter]: For program point L104-1(lines 104 121) no Hoare annotation was computed. [2019-10-22 11:26:17,848 INFO L443 ceAbstractionStarter]: For program point L104-2(lines 104 121) no Hoare annotation was computed. [2019-10-22 11:26:17,848 INFO L443 ceAbstractionStarter]: For program point L104-3(lines 104 121) no Hoare annotation was computed. [2019-10-22 11:26:17,848 INFO L443 ceAbstractionStarter]: For program point L104-4(lines 104 121) no Hoare annotation was computed. [2019-10-22 11:26:17,848 INFO L443 ceAbstractionStarter]: For program point L104-5(lines 104 121) no Hoare annotation was computed. [2019-10-22 11:26:17,849 INFO L443 ceAbstractionStarter]: For program point L303(lines 303 309) no Hoare annotation was computed. [2019-10-22 11:26:17,849 INFO L439 ceAbstractionStarter]: At program point L303-1(lines 303 309) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse4 (= (_ bv2 32) ~waterLevel~0)) (.cse1 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse3 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|))) (or (and (and (and .cse0 .cse1 .cse2) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) .cse3) (and (and (= (_ bv1 32) ~pumpRunning~0) .cse4 .cse1 .cse2) .cse3) (and (and .cse0 .cse4 .cse1 .cse2) .cse3))) [2019-10-22 11:26:17,849 INFO L439 ceAbstractionStarter]: At program point L72(lines 68 90) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse3 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse4 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|))) (or (and (and (and .cse0 .cse1 .cse2) .cse3) .cse4) (and .cse0 (= (_ bv2 32) ~waterLevel~0) .cse1 .cse4 .cse2) (and (and (and (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) ~switchedOnBeforeTS~0) .cse1 .cse3 .cse2) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|)) .cse4))) [2019-10-22 11:26:17,849 INFO L439 ceAbstractionStarter]: At program point L72-1(lines 68 90) the Hoare annotation is: false [2019-10-22 11:26:17,849 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2019-10-22 11:26:17,849 INFO L439 ceAbstractionStarter]: At program point L72-2(lines 68 90) the Hoare annotation is: false [2019-10-22 11:26:17,849 INFO L439 ceAbstractionStarter]: At program point L238(lines 223 241) the Hoare annotation is: false [2019-10-22 11:26:17,849 INFO L439 ceAbstractionStarter]: At program point L238-1(lines 223 241) 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 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32)) .cse1 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) .cse2 .cse3) (and .cse2 (and .cse0 (= (_ bv2 32) ~waterLevel~0) .cse1 .cse3)))) [2019-10-22 11:26:17,850 INFO L439 ceAbstractionStarter]: At program point L238-2(lines 223 241) the Hoare annotation is: false [2019-10-22 11:26:17,850 INFO L439 ceAbstractionStarter]: At program point L238-3(lines 223 241) the Hoare annotation is: false [2019-10-22 11:26:17,850 INFO L439 ceAbstractionStarter]: At program point L238-4(lines 223 241) the Hoare annotation is: false [2019-10-22 11:26:17,850 INFO L439 ceAbstractionStarter]: At program point L238-5(lines 223 241) the Hoare annotation is: false [2019-10-22 11:26:17,850 INFO L443 ceAbstractionStarter]: For program point L371(lines 371 375) no Hoare annotation was computed. [2019-10-22 11:26:17,850 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2019-10-22 11:26:17,850 INFO L443 ceAbstractionStarter]: For program point L108(lines 108 116) no Hoare annotation was computed. [2019-10-22 11:26:17,850 INFO L443 ceAbstractionStarter]: For program point L108-1(lines 108 116) no Hoare annotation was computed. [2019-10-22 11:26:17,850 INFO L443 ceAbstractionStarter]: For program point L108-2(lines 108 116) no Hoare annotation was computed. [2019-10-22 11:26:17,850 INFO L443 ceAbstractionStarter]: For program point L108-3(lines 108 116) no Hoare annotation was computed. [2019-10-22 11:26:17,850 INFO L443 ceAbstractionStarter]: For program point L108-4(lines 108 116) no Hoare annotation was computed. [2019-10-22 11:26:17,850 INFO L443 ceAbstractionStarter]: For program point L108-5(lines 108 116) no Hoare annotation was computed. [2019-10-22 11:26:17,850 INFO L439 ceAbstractionStarter]: At program point L439(lines 434 442) the Hoare annotation is: (and (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) ~switchedOnBeforeTS~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) [2019-10-22 11:26:17,850 INFO L439 ceAbstractionStarter]: At program point L439-1(lines 434 442) the Hoare annotation is: false [2019-10-22 11:26:17,851 INFO L439 ceAbstractionStarter]: At program point L439-2(lines 434 442) the Hoare annotation is: false [2019-10-22 11:26:17,851 INFO L443 ceAbstractionStarter]: For program point L44(line 44) no Hoare annotation was computed. [2019-10-22 11:26:17,851 INFO L443 ceAbstractionStarter]: For program point L44-1(line 44) no Hoare annotation was computed. [2019-10-22 11:26:17,851 INFO L443 ceAbstractionStarter]: For program point L44-2(line 44) no Hoare annotation was computed. [2019-10-22 11:26:17,851 INFO L443 ceAbstractionStarter]: For program point L837(lines 837 854) no Hoare annotation was computed. [2019-10-22 11:26:17,851 INFO L439 ceAbstractionStarter]: At program point L837-1(lines 1 992) the Hoare annotation is: (let ((.cse0 (= (_ bv2 32) ~waterLevel~0)) (.cse1 (= ~waterLevel~0 ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~8)) (.cse5 (= (_ bv2 32) |ULTIMATE.start_getWaterLevel_#res|)) (.cse6 (= (_ bv0 32) ~pumpRunning~0)) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse4 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse3 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|))) (or (and (= (_ bv1 32) ~pumpRunning~0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and (and (and .cse6 .cse2 .cse4) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) .cse3))) [2019-10-22 11:26:17,851 INFO L443 ceAbstractionStarter]: For program point L837-2(lines 837 854) no Hoare annotation was computed. [2019-10-22 11:26:17,851 INFO L439 ceAbstractionStarter]: At program point L837-3(lines 1 992) the Hoare annotation is: false [2019-10-22 11:26:17,851 INFO L443 ceAbstractionStarter]: For program point L837-4(lines 837 854) no Hoare annotation was computed. [2019-10-22 11:26:17,851 INFO L439 ceAbstractionStarter]: At program point L837-5(lines 1 992) the Hoare annotation is: false [2019-10-22 11:26:17,851 INFO L439 ceAbstractionStarter]: At program point L79(lines 79 85) the Hoare annotation is: (let ((.cse1 (= (_ bv2 32) ~waterLevel~0)) (.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse4 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse3 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and (and (= (_ bv1 32) ~pumpRunning~0) .cse1 .cse2 .cse4) .cse3) (and (and (and .cse0 .cse2 .cse4) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) .cse3))) [2019-10-22 11:26:17,852 INFO L439 ceAbstractionStarter]: At program point L79-1(lines 79 85) the Hoare annotation is: false [2019-10-22 11:26:17,852 INFO L439 ceAbstractionStarter]: At program point L79-2(lines 79 85) the Hoare annotation is: false [2019-10-22 11:26:17,852 INFO L443 ceAbstractionStarter]: For program point L841(lines 841 851) no Hoare annotation was computed. [2019-10-22 11:26:17,852 INFO L443 ceAbstractionStarter]: For program point L841-2(lines 841 851) no Hoare annotation was computed. [2019-10-22 11:26:17,852 INFO L443 ceAbstractionStarter]: For program point L841-4(lines 841 851) no Hoare annotation was computed. [2019-10-22 11:26:17,852 INFO L443 ceAbstractionStarter]: For program point L313(lines 313 326) no Hoare annotation was computed. [2019-10-22 11:26:17,852 INFO L443 ceAbstractionStarter]: For program point L842(lines 842 848) no Hoare annotation was computed. [2019-10-22 11:26:17,852 INFO L439 ceAbstractionStarter]: At program point L908-2(lines 908 922) the Hoare annotation is: false [2019-10-22 11:26:17,852 INFO L443 ceAbstractionStarter]: For program point L842-2(lines 842 848) no Hoare annotation was computed. [2019-10-22 11:26:17,852 INFO L443 ceAbstractionStarter]: For program point L842-4(lines 842 848) no Hoare annotation was computed. [2019-10-22 11:26:17,852 INFO L443 ceAbstractionStarter]: For program point L347(lines 347 351) no Hoare annotation was computed. [2019-10-22 11:26:17,852 INFO L443 ceAbstractionStarter]: For program point L347-3(lines 347 351) no Hoare annotation was computed. [2019-10-22 11:26:17,853 INFO L443 ceAbstractionStarter]: For program point L347-6(lines 347 351) no Hoare annotation was computed. [2019-10-22 11:26:17,853 INFO L443 ceAbstractionStarter]: For program point L909(line 909) no Hoare annotation was computed. [2019-10-22 11:26:17,853 INFO L439 ceAbstractionStarter]: At program point L183(lines 178 186) the Hoare annotation is: (let ((.cse0 (= (_ bv2 32) ~waterLevel~0)) (.cse4 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse5 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|))) (or (and (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) .cse0 .cse1 .cse2 .cse3) (and (and .cse4 .cse0 .cse1 .cse5 .cse3) .cse2) (and (and (and .cse4 .cse1 .cse5 .cse3) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) .cse2))) [2019-10-22 11:26:17,853 INFO L439 ceAbstractionStarter]: At program point L183-1(lines 178 186) the Hoare annotation is: (and (= ~waterLevel~0 |ULTIMATE.start_getWaterLevel_#res|) (= (_ bv0 32) ~pumpRunning~0) (= ~waterLevel~0 ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~8) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) [2019-10-22 11:26:17,854 INFO L439 ceAbstractionStarter]: At program point L183-2(lines 178 186) the Hoare annotation is: false [2019-10-22 11:26:17,854 INFO L439 ceAbstractionStarter]: At program point L183-3(lines 178 186) the Hoare annotation is: false [2019-10-22 11:26:17,854 INFO L439 ceAbstractionStarter]: At program point L183-4(lines 178 186) the Hoare annotation is: false [2019-10-22 11:26:17,854 INFO L439 ceAbstractionStarter]: At program point L183-5(lines 178 186) the Hoare annotation is: false [2019-10-22 11:26:17,854 INFO L439 ceAbstractionStarter]: At program point L416(lines 411 419) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse4 (= (_ 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))) (.cse5 (= (_ bv2 32) |ULTIMATE.start_getWaterLevel_#res|))) (or (and (and (= ~waterLevel~0 |ULTIMATE.start_getWaterLevel_#res|) (and .cse0 .cse1 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) .cse2)) .cse3) (and (and (= (_ bv1 32) ~pumpRunning~0) .cse4 .cse1 .cse2 .cse5) .cse3) (and .cse0 .cse4 .cse1 .cse3 .cse2 .cse5))) [2019-10-22 11:26:17,854 INFO L439 ceAbstractionStarter]: At program point L416-1(lines 411 419) the Hoare annotation is: false [2019-10-22 11:26:17,854 INFO L439 ceAbstractionStarter]: At program point L416-2(lines 411 419) the Hoare annotation is: false [2019-10-22 11:26:17,854 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:26:17,854 INFO L443 ceAbstractionStarter]: For program point L284(lines 283 330) no Hoare annotation was computed. [2019-10-22 11:26:17,854 INFO L443 ceAbstractionStarter]: For program point L251(lines 251 255) no Hoare annotation was computed. [2019-10-22 11:26:17,854 INFO L443 ceAbstractionStarter]: For program point L251-2(lines 251 255) no Hoare annotation was computed. [2019-10-22 11:26:17,854 INFO L443 ceAbstractionStarter]: For program point L251-3(lines 251 255) no Hoare annotation was computed. [2019-10-22 11:26:17,854 INFO L443 ceAbstractionStarter]: For program point L251-5(lines 251 255) no Hoare annotation was computed. [2019-10-22 11:26:17,855 INFO L443 ceAbstractionStarter]: For program point L251-6(lines 251 255) no Hoare annotation was computed. [2019-10-22 11:26:17,855 INFO L443 ceAbstractionStarter]: For program point L251-8(lines 251 255) no Hoare annotation was computed. [2019-10-22 11:26:17,855 INFO L443 ceAbstractionStarter]: For program point L912(lines 912 916) no Hoare annotation was computed. [2019-10-22 11:26:17,855 INFO L443 ceAbstractionStarter]: For program point L912-1(lines 912 916) no Hoare annotation was computed. [2019-10-22 11:26:17,855 INFO L443 ceAbstractionStarter]: For program point L285(lines 285 289) no Hoare annotation was computed. [2019-10-22 11:26:17,855 INFO L443 ceAbstractionStarter]: For program point L980(lines 980 987) no Hoare annotation was computed. [2019-10-22 11:26:17,855 INFO L446 ceAbstractionStarter]: At program point L980-1(lines 980 987) the Hoare annotation is: true [2019-10-22 11:26:17,855 INFO L439 ceAbstractionStarter]: At program point L816(lines 811 818) 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 11:26:17,855 INFO L443 ceAbstractionStarter]: For program point L321(lines 321 325) no Hoare annotation was computed. [2019-10-22 11:26:17,855 INFO L439 ceAbstractionStarter]: At program point L321-2(lines 321 325) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse4 (= (_ bv2 32) ~waterLevel~0)) (.cse1 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse3 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|))) (or (and (and (and .cse0 .cse1 .cse2) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) .cse3) (and (and (= (_ bv1 32) ~pumpRunning~0) .cse4 .cse1 .cse2) .cse3) (and (and .cse0 .cse4 .cse1 .cse2) .cse3))) [2019-10-22 11:26:17,855 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:26:17,856 INFO L439 ceAbstractionStarter]: At program point L884(lines 1 992) 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 11:26:17,856 INFO L439 ceAbstractionStarter]: At program point L257(lines 242 260) the Hoare annotation is: (and (= ULTIMATE.start_isLowWaterLevel_~tmp~3 (_ bv0 32)) (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) ~switchedOnBeforeTS~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) (= (bvadd ULTIMATE.start_isLowWaterLevel_~tmp___0~1 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd |ULTIMATE.start_isLowWaterLevel_#res| (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) [2019-10-22 11:26:17,856 INFO L439 ceAbstractionStarter]: At program point L257-1(lines 242 260) the Hoare annotation is: false [2019-10-22 11:26:17,856 INFO L439 ceAbstractionStarter]: At program point L257-2(lines 242 260) the Hoare annotation is: false [2019-10-22 11:26:17,856 INFO L443 ceAbstractionStarter]: For program point L424(lines 424 430) no Hoare annotation was computed. [2019-10-22 11:26:17,856 INFO L443 ceAbstractionStarter]: For program point L424-1(lines 424 430) no Hoare annotation was computed. [2019-10-22 11:26:17,856 INFO L443 ceAbstractionStarter]: For program point L424-2(lines 424 430) no Hoare annotation was computed. [2019-10-22 11:26:17,856 INFO L443 ceAbstractionStarter]: For program point L424-3(lines 424 430) no Hoare annotation was computed. [2019-10-22 11:26:17,856 INFO L443 ceAbstractionStarter]: For program point L424-4(lines 424 430) no Hoare annotation was computed. [2019-10-22 11:26:17,856 INFO L443 ceAbstractionStarter]: For program point L424-5(lines 424 430) no Hoare annotation was computed. [2019-10-22 11:26:17,856 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:26:17,856 INFO L443 ceAbstractionStarter]: For program point L359(lines 359 363) no Hoare annotation was computed. [2019-10-22 11:26:17,856 INFO L443 ceAbstractionStarter]: For program point L293(lines 293 299) no Hoare annotation was computed. [2019-10-22 11:26:17,856 INFO L439 ceAbstractionStarter]: At program point L293-1(lines 293 299) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse4 (= (_ bv2 32) ~waterLevel~0)) (.cse1 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse3 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|))) (or (and (and (and .cse0 .cse1 .cse2) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) .cse3) (and (and (= (_ bv1 32) ~pumpRunning~0) .cse4 .cse1 .cse2) .cse3) (and (and .cse0 .cse4 .cse1 .cse2) .cse3))) [2019-10-22 11:26:17,856 INFO L443 ceAbstractionStarter]: For program point L130(lines 130 147) no Hoare annotation was computed. [2019-10-22 11:26:17,856 INFO L443 ceAbstractionStarter]: For program point L130-1(lines 130 147) no Hoare annotation was computed. [2019-10-22 11:26:17,856 INFO L443 ceAbstractionStarter]: For program point L130-2(lines 130 147) no Hoare annotation was computed. [2019-10-22 11:26:17,857 INFO L446 ceAbstractionStarter]: At program point L989(lines 970 992) the Hoare annotation is: true [2019-10-22 11:26:17,857 INFO L439 ceAbstractionStarter]: At program point L956(lines 952 958) 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 11:26:17,857 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 11:26:17,857 INFO L439 ceAbstractionStarter]: At program point L429(lines 420 433) the Hoare annotation is: false [2019-10-22 11:26:17,858 INFO L439 ceAbstractionStarter]: At program point L429-1(lines 420 433) the Hoare annotation is: (let ((.cse3 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|)) (.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) .cse0 .cse1 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) .cse2) .cse3) (and .cse3 (and .cse0 (= (_ bv2 32) ~waterLevel~0) .cse1 .cse2)))) [2019-10-22 11:26:17,858 INFO L439 ceAbstractionStarter]: At program point L429-2(lines 420 433) the Hoare annotation is: false [2019-10-22 11:26:17,858 INFO L439 ceAbstractionStarter]: At program point L429-3(lines 420 433) the Hoare annotation is: false [2019-10-22 11:26:17,858 INFO L439 ceAbstractionStarter]: At program point L429-4(lines 420 433) the Hoare annotation is: false [2019-10-22 11:26:17,858 INFO L439 ceAbstractionStarter]: At program point L429-5(lines 420 433) the Hoare annotation is: false [2019-10-22 11:26:17,858 INFO L439 ceAbstractionStarter]: At program point L892(lines 887 895) 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 11:26:17,858 INFO L439 ceAbstractionStarter]: At program point L826(lines 72 78) the Hoare annotation is: (let ((.cse1 (= (_ bv2 32) ~waterLevel~0)) (.cse4 (= (_ bv0 32) ~pumpRunning~0)) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse5 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse0 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|))) (or (and .cse0 (and (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) ~switchedOnBeforeTS~0) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) .cse1 .cse2 .cse3)) (and (and .cse4 .cse1 .cse2 .cse5 .cse3) .cse0) (and (and (and .cse4 .cse2 .cse5 .cse3) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) .cse0))) [2019-10-22 11:26:17,858 INFO L439 ceAbstractionStarter]: At program point L826-1(lines 72 78) the Hoare annotation is: false [2019-10-22 11:26:17,858 INFO L439 ceAbstractionStarter]: At program point L826-2(lines 72 78) the Hoare annotation is: false [2019-10-22 11:26:17,858 INFO L439 ceAbstractionStarter]: At program point L331(lines 282 332) the Hoare annotation is: false [2019-10-22 11:26:17,859 INFO L443 ceAbstractionStarter]: For program point L232(lines 232 236) no Hoare annotation was computed. [2019-10-22 11:26:17,859 INFO L443 ceAbstractionStarter]: For program point L232-2(lines 232 236) no Hoare annotation was computed. [2019-10-22 11:26:17,859 INFO L443 ceAbstractionStarter]: For program point L232-3(lines 232 236) no Hoare annotation was computed. [2019-10-22 11:26:17,859 INFO L443 ceAbstractionStarter]: For program point L232-5(lines 232 236) no Hoare annotation was computed. [2019-10-22 11:26:17,859 INFO L443 ceAbstractionStarter]: For program point L232-6(lines 232 236) no Hoare annotation was computed. [2019-10-22 11:26:17,859 INFO L443 ceAbstractionStarter]: For program point L232-8(lines 232 236) no Hoare annotation was computed. [2019-10-22 11:26:17,859 INFO L443 ceAbstractionStarter]: For program point L232-9(lines 232 236) no Hoare annotation was computed. [2019-10-22 11:26:17,859 INFO L443 ceAbstractionStarter]: For program point L232-11(lines 232 236) no Hoare annotation was computed. [2019-10-22 11:26:17,859 INFO L443 ceAbstractionStarter]: For program point L232-12(lines 232 236) no Hoare annotation was computed. [2019-10-22 11:26:17,859 INFO L443 ceAbstractionStarter]: For program point L232-14(lines 232 236) no Hoare annotation was computed. [2019-10-22 11:26:17,859 INFO L443 ceAbstractionStarter]: For program point L232-15(lines 232 236) no Hoare annotation was computed. [2019-10-22 11:26:17,859 INFO L443 ceAbstractionStarter]: For program point L232-17(lines 232 236) no Hoare annotation was computed. [2019-10-22 11:26:17,859 INFO L443 ceAbstractionStarter]: For program point L134(lines 134 142) no Hoare annotation was computed. [2019-10-22 11:26:17,859 INFO L443 ceAbstractionStarter]: For program point L134-1(lines 134 142) no Hoare annotation was computed. [2019-10-22 11:26:17,860 INFO L443 ceAbstractionStarter]: For program point L134-2(lines 134 142) no Hoare annotation was computed. [2019-10-22 11:26:17,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:26:17 BoogieIcfgContainer [2019-10-22 11:26:17,881 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:26:17,882 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:26:17,882 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:26:17,882 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:26:17,882 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:59" (3/4) ... [2019-10-22 11:26:17,886 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:26:17,899 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2019-10-22 11:26:17,900 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2019-10-22 11:26:17,900 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-10-22 11:26:17,901 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 11:26:17,902 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 11:26:17,902 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 11:26:17,927 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 11:26:17,927 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 11:26:17,927 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 11:26:17,928 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((1bv32 == pumpRunning && 2bv32 == waterLevel) && waterLevel == tmp) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && splverifierCounter == 0bv32) && 2bv32 == \result) || ((((((0bv32 == pumpRunning && 2bv32 == waterLevel) && waterLevel == tmp) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && splverifierCounter == 0bv32) && 2bv32 == \result)) || ((((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) [2019-10-22 11:26:17,928 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((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)) || ((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 1bv32 == \result) [2019-10-22 11:26:17,928 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((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)) || ((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 1bv32 == \result) [2019-10-22 11:26:17,928 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((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)) || ((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 1bv32 == \result) [2019-10-22 11:26:17,928 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1bv32 == pumpRunning && 1bv32 == \result) && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && splverifierCounter == 0bv32) || (((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == \result) && splverifierCounter == 0bv32) && 1bv32 == \result)) || (((((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) [2019-10-22 11:26:17,929 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((1bv32 == \result && ((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || (((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == \result) && splverifierCounter == 0bv32) && 1bv32 == \result)) || (((((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) [2019-10-22 11:26:17,929 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) || ((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && splverifierCounter == 0bv32)) || ((((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 1bv32 == \result) && 1bv32 == \result) [2019-10-22 11:26:17,929 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && splverifierCounter == 0bv32) || ((((1bv32 == 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 11:26:17,930 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((waterLevel == \result && ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 1bv32 == \result) || (((((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) [2019-10-22 11:26:17,930 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && \result == 0bv32) && 1bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32 [2019-10-22 11:26:17,931 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1bv32 == \result && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 1bv32 == \result) || (1bv32 == \result && ((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) [2019-10-22 11:26:17,931 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((waterLevel == \result && 0bv32 == pumpRunning) && waterLevel == tmp) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == \result) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32 [2019-10-22 11:26:17,931 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((tmp == 0bv32 && 1bv32 == pumpRunning) && 1bv32 == switchedOnBeforeTS) && \result == 0bv32) && 1bv32 == \result) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32 [2019-10-22 11:26:17,932 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((0bv32 == pumpRunning && \result == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp___0 == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && splverifierCounter == 0bv32) || (1bv32 == \result && ((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) [2019-10-22 11:26:17,976 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7c520b29-1416-456a-97c2-9528ae516522/bin/utaipan/witness.graphml [2019-10-22 11:26:17,976 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:26:17,977 INFO L168 Benchmark]: Toolchain (without parser) took 19842.29 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 457.7 MB). Free memory was 947.0 MB in the beginning and 1.2 GB in the end (delta: -287.4 MB). Peak memory consumption was 170.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:17,978 INFO L168 Benchmark]: CDTParser took 0.20 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 11:26:17,978 INFO L168 Benchmark]: CACSL2BoogieTranslator took 668.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -188.3 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:17,978 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:17,978 INFO L168 Benchmark]: Boogie Preprocessor took 55.85 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 11:26:17,979 INFO L168 Benchmark]: RCFGBuilder took 974.09 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: 71.6 MB). Peak memory consumption was 71.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:17,979 INFO L168 Benchmark]: TraceAbstraction took 17980.35 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 302.5 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -201.9 MB). Peak memory consumption was 450.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:17,979 INFO L168 Benchmark]: Witness Printer took 94.37 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:17,980 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 668.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -188.3 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 63.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 55.85 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 974.09 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: 71.6 MB). Peak memory consumption was 71.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 17980.35 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 302.5 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -201.9 MB). Peak memory consumption was 450.5 MB. Max. memory is 11.5 GB. * Witness Printer took 94.37 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 44]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 44]: 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: 1]: Loop Invariant Derived loop invariant: (((((((1bv32 == pumpRunning && 2bv32 == waterLevel) && waterLevel == tmp) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && splverifierCounter == 0bv32) && 2bv32 == \result) || ((((((0bv32 == pumpRunning && 2bv32 == waterLevel) && waterLevel == tmp) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && splverifierCounter == 0bv32) && 2bv32 == \result)) || ((((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 411]: Loop Invariant Derived loop invariant: (((waterLevel == \result && ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 1bv32 == \result) || (((((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) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 223]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 411]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 321]: Loop Invariant Derived loop invariant: (((((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)) || ((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 1bv32 == \result) - InvariantResult [Line: 980]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 887]: Loop Invariant Derived loop invariant: ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 303]: Loop Invariant Derived loop invariant: (((((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)) || ((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 1bv32 == \result) - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: ((1bv32 == \result && ((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || (((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == \result) && splverifierCounter == 0bv32) && 1bv32 == \result)) || (((((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) - InvariantResult [Line: 434]: Loop Invariant Derived loop invariant: ((((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && \result == 0bv32) && 1bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32 - InvariantResult [Line: 434]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 434]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 420]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 223]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 223]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 420]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: ((((((waterLevel == \result && 0bv32 == pumpRunning) && waterLevel == tmp) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == \result) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32 - InvariantResult [Line: 223]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: ((((((1bv32 == pumpRunning && 1bv32 == \result) && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && splverifierCounter == 0bv32) || (((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == \result) && splverifierCounter == 0bv32) && 1bv32 == \result)) || (((((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) - InvariantResult [Line: 223]: Loop Invariant Derived loop invariant: ((((((0bv32 == pumpRunning && \result == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp___0 == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && splverifierCounter == 0bv32) || (1bv32 == \result && ((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) - InvariantResult [Line: 811]: Loop Invariant Derived loop invariant: ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 223]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 293]: Loop Invariant Derived loop invariant: (((((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)) || ((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 1bv32 == \result) - InvariantResult [Line: 420]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 420]: Loop Invariant Derived loop invariant: (((((1bv32 == \result && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 1bv32 == \result) || (1bv32 == \result && ((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) - InvariantResult [Line: 420]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 420]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 908]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 242]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 242]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 970]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 242]: Loop Invariant Derived loop invariant: (((((((((tmp == 0bv32 && 1bv32 == pumpRunning) && 1bv32 == switchedOnBeforeTS) && \result == 0bv32) && 1bv32 == \result) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32 - InvariantResult [Line: 952]: Loop Invariant Derived loop invariant: ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 79]: Loop Invariant Derived loop invariant: (((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && splverifierCounter == 0bv32) || ((((1bv32 == 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: 68]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: (((((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) || ((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && splverifierCounter == 0bv32)) || ((((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 1bv32 == \result) && 1bv32 == \result) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 411]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 79]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 79]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 126 locations, 3 error locations. Result: SAFE, OverallTime: 17.8s, OverallIterations: 16, TraceHistogramMax: 4, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.2s, HoareTripleCheckerStatistics: 2278 SDtfs, 4186 SDslu, 4665 SDs, 0 SdLazy, 858 SolverSat, 197 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2653 GetRequests, 2523 SyntacticMatches, 3 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=451occurred 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, 2186 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 50 LocationsWithAnnotation, 50 PreInvPairs, 159 NumberOfFragments, 885 HoareAnnotationTreeSize, 50 FomulaSimplifications, 4485203 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 50 FomulaSimplificationsInter, 94701 FormulaSimplificationTreeSizeReductionInter, 3.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 1308 NumberOfCodeBlocks, 1308 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 2576 ConstructedInterpolants, 0 QuantifiedInterpolants, 453073 SizeOfPredicates, 79 NumberOfNonLiveVariables, 4896 ConjunctsInSsa, 114 ConjunctsInUnsatCore, 40 InterpolantComputations, 26 PerfectInterpolantSequences, 1884/2084 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...