./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product53.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_ed8d6aeb-e30c-4688-af1f-0412d9762456/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/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 ae33dcba0147a107c551c432e2bfc2c49f1e3070 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_ed8d6aeb-e30c-4688-af1f-0412d9762456/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/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 ae33dcba0147a107c551c432e2bfc2c49f1e3070 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 11:26:22,484 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:26:22,486 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:26:22,496 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:26:22,497 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:26:22,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:26:22,499 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:26:22,501 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:26:22,502 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:26:22,503 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:26:22,506 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:26:22,507 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:26:22,510 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:26:22,511 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:26:22,512 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:26:22,513 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:26:22,520 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:26:22,520 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:26:22,522 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:26:22,523 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:26:22,529 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:26:22,530 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:26:22,530 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:26:22,531 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:26:22,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:26:22,533 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:26:22,533 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:26:22,534 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:26:22,534 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:26:22,538 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:26:22,539 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:26:22,540 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:26:22,540 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:26:22,541 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:26:22,542 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:26:22,542 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:26:22,543 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:26:22,544 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:26:22,544 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:26:22,544 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:26:22,545 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:26:22,546 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:26:22,564 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:26:22,565 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:26:22,566 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:26:22,566 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:26:22,566 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:26:22,566 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:26:22,567 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:26:22,567 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:26:22,567 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:26:22,567 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:26:22,567 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:26:22,567 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:26:22,568 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:26:22,568 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:26:22,568 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:26:22,568 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:26:22,569 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:26:22,569 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:26:22,569 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:26:22,569 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:26:22,569 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:26:22,569 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:26:22,569 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:26:22,570 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:26:22,570 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:26:22,570 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:26:22,570 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:26:22,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:26:22,571 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:26:22,571 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:26:22,572 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:26:22,572 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:26:22,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:26:22,572 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:26:22,572 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:26:22,572 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_ed8d6aeb-e30c-4688-af1f-0412d9762456/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 -> ae33dcba0147a107c551c432e2bfc2c49f1e3070 [2019-10-22 11:26:22,599 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:26:22,609 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:26:22,612 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:26:22,614 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:26:22,614 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:26:22,614 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c [2019-10-22 11:26:22,662 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/bin/utaipan/data/d45418de7/219d5a61b9824c8ea9699a4b43dadce9/FLAG35ca5d4cb [2019-10-22 11:26:23,089 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:26:23,095 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c [2019-10-22 11:26:23,109 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/bin/utaipan/data/d45418de7/219d5a61b9824c8ea9699a4b43dadce9/FLAG35ca5d4cb [2019-10-22 11:26:23,119 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/bin/utaipan/data/d45418de7/219d5a61b9824c8ea9699a4b43dadce9 [2019-10-22 11:26:23,122 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:26:23,123 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:26:23,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:26:23,124 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:26:23,128 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:26:23,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:26:23" (1/1) ... [2019-10-22 11:26:23,131 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79e90325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:23, skipping insertion in model container [2019-10-22 11:26:23,131 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:26:23" (1/1) ... [2019-10-22 11:26:23,137 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:26:23,177 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:26:23,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:26:23,512 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:26:23,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:26:23,643 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:26:23,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:23 WrapperNode [2019-10-22 11:26:23,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:26:23,645 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:26:23,645 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:26:23,645 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:26:23,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:23" (1/1) ... [2019-10-22 11:26:23,666 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:23" (1/1) ... [2019-10-22 11:26:23,740 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:26:23,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:26:23,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:26:23,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:26:23,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:23" (1/1) ... [2019-10-22 11:26:23,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:23" (1/1) ... [2019-10-22 11:26:23,768 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:23" (1/1) ... [2019-10-22 11:26:23,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:23" (1/1) ... [2019-10-22 11:26:23,785 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:23" (1/1) ... [2019-10-22 11:26:23,802 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:23" (1/1) ... [2019-10-22 11:26:23,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:23" (1/1) ... [2019-10-22 11:26:23,817 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:26:23,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:26:23,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:26:23,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:26:23,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/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 11:26:23,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:26:23,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 11:26:23,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:26:23,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:26:24,851 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:26:24,852 INFO L284 CfgBuilder]: Removed 276 assume(true) statements. [2019-10-22 11:26:24,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:24 BoogieIcfgContainer [2019-10-22 11:26:24,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:26:24,854 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:26:24,854 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:26:24,857 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:26:24,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:26:23" (1/3) ... [2019-10-22 11:26:24,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@224e9c3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:26:24, skipping insertion in model container [2019-10-22 11:26:24,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:23" (2/3) ... [2019-10-22 11:26:24,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@224e9c3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:26:24, skipping insertion in model container [2019-10-22 11:26:24,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:24" (3/3) ... [2019-10-22 11:26:24,860 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product53.cil.c [2019-10-22 11:26:24,869 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:26:24,878 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:26:24,888 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:26:24,917 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:26:24,917 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:26:24,917 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:26:24,917 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:26:24,918 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:26:24,918 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:26:24,918 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:26:24,918 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:26:24,940 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states. [2019-10-22 11:26:24,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 11:26:24,946 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:24,947 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:24,949 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:24,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:24,956 INFO L82 PathProgramCache]: Analyzing trace with hash 2002794138, now seen corresponding path program 1 times [2019-10-22 11:26:24,964 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:24,965 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851394331] [2019-10-22 11:26:24,965 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:24,966 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:24,966 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:25,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:25,170 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 11:26:25,171 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851394331] [2019-10-22 11:26:25,171 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:25,172 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:26:25,172 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324819435] [2019-10-22 11:26:25,176 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:26:25,177 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:25,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:26:25,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:26:25,192 INFO L87 Difference]: Start difference. First operand 189 states. Second operand 2 states. [2019-10-22 11:26:25,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:25,229 INFO L93 Difference]: Finished difference Result 372 states and 569 transitions. [2019-10-22 11:26:25,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:26:25,230 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-10-22 11:26:25,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:25,241 INFO L225 Difference]: With dead ends: 372 [2019-10-22 11:26:25,241 INFO L226 Difference]: Without dead ends: 185 [2019-10-22 11:26:25,244 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 11:26:25,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2019-10-22 11:26:25,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2019-10-22 11:26:25,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2019-10-22 11:26:25,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 276 transitions. [2019-10-22 11:26:25,285 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 276 transitions. Word has length 16 [2019-10-22 11:26:25,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:25,286 INFO L462 AbstractCegarLoop]: Abstraction has 185 states and 276 transitions. [2019-10-22 11:26:25,286 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:26:25,286 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 276 transitions. [2019-10-22 11:26:25,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 11:26:25,287 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:25,287 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:25,287 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:25,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:25,287 INFO L82 PathProgramCache]: Analyzing trace with hash 956037241, now seen corresponding path program 1 times [2019-10-22 11:26:25,288 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:25,288 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891486950] [2019-10-22 11:26:25,288 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:25,288 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:25,288 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:25,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:25,372 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 11:26:25,372 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891486950] [2019-10-22 11:26:25,373 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:25,373 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:26:25,373 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076278639] [2019-10-22 11:26:25,374 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:26:25,374 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:25,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:26:25,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:25,375 INFO L87 Difference]: Start difference. First operand 185 states and 276 transitions. Second operand 3 states. [2019-10-22 11:26:25,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:25,392 INFO L93 Difference]: Finished difference Result 185 states and 276 transitions. [2019-10-22 11:26:25,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:26:25,393 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-10-22 11:26:25,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:25,394 INFO L225 Difference]: With dead ends: 185 [2019-10-22 11:26:25,394 INFO L226 Difference]: Without dead ends: 71 [2019-10-22 11:26:25,395 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 11:26:25,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2019-10-22 11:26:25,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2019-10-22 11:26:25,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-10-22 11:26:25,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 105 transitions. [2019-10-22 11:26:25,401 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 105 transitions. Word has length 17 [2019-10-22 11:26:25,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:25,402 INFO L462 AbstractCegarLoop]: Abstraction has 71 states and 105 transitions. [2019-10-22 11:26:25,402 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:26:25,402 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 105 transitions. [2019-10-22 11:26:25,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 11:26:25,402 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:25,403 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 11:26:25,403 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:25,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:25,403 INFO L82 PathProgramCache]: Analyzing trace with hash 748559286, now seen corresponding path program 1 times [2019-10-22 11:26:25,403 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:25,404 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262458485] [2019-10-22 11:26:25,404 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:25,404 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:25,404 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:25,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:25,504 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 11:26:25,504 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262458485] [2019-10-22 11:26:25,505 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:25,505 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:26:25,505 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430718806] [2019-10-22 11:26:25,505 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:26:25,506 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:25,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:26:25,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:26:25,506 INFO L87 Difference]: Start difference. First operand 71 states and 105 transitions. Second operand 6 states. [2019-10-22 11:26:25,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:25,601 INFO L93 Difference]: Finished difference Result 136 states and 204 transitions. [2019-10-22 11:26:25,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:26:25,602 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2019-10-22 11:26:25,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:25,602 INFO L225 Difference]: With dead ends: 136 [2019-10-22 11:26:25,603 INFO L226 Difference]: Without dead ends: 71 [2019-10-22 11:26:25,603 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:26:25,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2019-10-22 11:26:25,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2019-10-22 11:26:25,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-10-22 11:26:25,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 104 transitions. [2019-10-22 11:26:25,613 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 104 transitions. Word has length 22 [2019-10-22 11:26:25,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:25,613 INFO L462 AbstractCegarLoop]: Abstraction has 71 states and 104 transitions. [2019-10-22 11:26:25,613 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:26:25,613 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 104 transitions. [2019-10-22 11:26:25,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 11:26:25,614 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:25,614 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:25,615 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:25,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:25,615 INFO L82 PathProgramCache]: Analyzing trace with hash -682519882, now seen corresponding path program 1 times [2019-10-22 11:26:25,615 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:25,615 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405874212] [2019-10-22 11:26:25,615 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:25,616 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:25,616 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:25,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:25,675 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 11:26:25,676 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405874212] [2019-10-22 11:26:25,676 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:25,676 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:26:25,676 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716376837] [2019-10-22 11:26:25,677 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:26:25,677 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:25,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:26:25,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:25,677 INFO L87 Difference]: Start difference. First operand 71 states and 104 transitions. Second operand 3 states. [2019-10-22 11:26:25,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:25,743 INFO L93 Difference]: Finished difference Result 145 states and 214 transitions. [2019-10-22 11:26:25,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:26:25,743 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-10-22 11:26:25,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:25,744 INFO L225 Difference]: With dead ends: 145 [2019-10-22 11:26:25,744 INFO L226 Difference]: Without dead ends: 80 [2019-10-22 11:26:25,745 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 11:26:25,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2019-10-22 11:26:25,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78. [2019-10-22 11:26:25,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-10-22 11:26:25,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 110 transitions. [2019-10-22 11:26:25,753 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 110 transitions. Word has length 25 [2019-10-22 11:26:25,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:25,753 INFO L462 AbstractCegarLoop]: Abstraction has 78 states and 110 transitions. [2019-10-22 11:26:25,753 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:26:25,753 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 110 transitions. [2019-10-22 11:26:25,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 11:26:25,754 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:25,754 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:25,755 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:25,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:25,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1459548505, now seen corresponding path program 1 times [2019-10-22 11:26:25,755 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:25,756 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185787691] [2019-10-22 11:26:25,756 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:25,756 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:25,756 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:25,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:25,822 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 11:26:25,822 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185787691] [2019-10-22 11:26:25,822 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:25,822 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:26:25,823 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101360692] [2019-10-22 11:26:25,823 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:26:25,823 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:25,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:26:25,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:26:25,824 INFO L87 Difference]: Start difference. First operand 78 states and 110 transitions. Second operand 5 states. [2019-10-22 11:26:25,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:25,952 INFO L93 Difference]: Finished difference Result 204 states and 285 transitions. [2019-10-22 11:26:25,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:26:25,953 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-10-22 11:26:25,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:25,954 INFO L225 Difference]: With dead ends: 204 [2019-10-22 11:26:25,954 INFO L226 Difference]: Without dead ends: 132 [2019-10-22 11:26:25,955 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 11:26:25,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-10-22 11:26:25,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 87. [2019-10-22 11:26:25,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-10-22 11:26:25,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 119 transitions. [2019-10-22 11:26:25,965 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 119 transitions. Word has length 31 [2019-10-22 11:26:25,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:25,966 INFO L462 AbstractCegarLoop]: Abstraction has 87 states and 119 transitions. [2019-10-22 11:26:25,966 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:26:25,971 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 119 transitions. [2019-10-22 11:26:25,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 11:26:25,972 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:25,972 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:25,972 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:25,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:25,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1202962538, now seen corresponding path program 1 times [2019-10-22 11:26:25,973 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:25,973 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932055508] [2019-10-22 11:26:25,973 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:25,973 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:25,973 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:25,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:26,079 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 11:26:26,079 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932055508] [2019-10-22 11:26:26,079 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:26,079 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 11:26:26,080 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798223112] [2019-10-22 11:26:26,080 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:26:26,080 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:26,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:26:26,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:26:26,081 INFO L87 Difference]: Start difference. First operand 87 states and 119 transitions. Second operand 8 states. [2019-10-22 11:26:26,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:26,432 INFO L93 Difference]: Finished difference Result 568 states and 795 transitions. [2019-10-22 11:26:26,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-22 11:26:26,434 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 31 [2019-10-22 11:26:26,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:26,436 INFO L225 Difference]: With dead ends: 568 [2019-10-22 11:26:26,436 INFO L226 Difference]: Without dead ends: 487 [2019-10-22 11:26:26,437 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2019-10-22 11:26:26,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2019-10-22 11:26:26,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 204. [2019-10-22 11:26:26,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2019-10-22 11:26:26,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 276 transitions. [2019-10-22 11:26:26,469 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 276 transitions. Word has length 31 [2019-10-22 11:26:26,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:26,469 INFO L462 AbstractCegarLoop]: Abstraction has 204 states and 276 transitions. [2019-10-22 11:26:26,470 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:26:26,470 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 276 transitions. [2019-10-22 11:26:26,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-10-22 11:26:26,474 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:26,474 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-22 11:26:26,474 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:26,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:26,475 INFO L82 PathProgramCache]: Analyzing trace with hash -568007825, now seen corresponding path program 1 times [2019-10-22 11:26:26,475 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:26,475 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462927174] [2019-10-22 11:26:26,475 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:26,475 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:26,475 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:26,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:26,546 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-22 11:26:26,546 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462927174] [2019-10-22 11:26:26,547 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:26,547 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:26:26,547 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201265855] [2019-10-22 11:26:26,547 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:26:26,548 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:26,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:26:26,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:26:26,548 INFO L87 Difference]: Start difference. First operand 204 states and 276 transitions. Second operand 6 states. [2019-10-22 11:26:26,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:26,673 INFO L93 Difference]: Finished difference Result 476 states and 640 transitions. [2019-10-22 11:26:26,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:26:26,674 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2019-10-22 11:26:26,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:26,675 INFO L225 Difference]: With dead ends: 476 [2019-10-22 11:26:26,675 INFO L226 Difference]: Without dead ends: 278 [2019-10-22 11:26:26,676 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2019-10-22 11:26:26,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2019-10-22 11:26:26,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 182. [2019-10-22 11:26:26,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2019-10-22 11:26:26,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 240 transitions. [2019-10-22 11:26:26,694 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 240 transitions. Word has length 49 [2019-10-22 11:26:26,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:26,694 INFO L462 AbstractCegarLoop]: Abstraction has 182 states and 240 transitions. [2019-10-22 11:26:26,694 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:26:26,694 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 240 transitions. [2019-10-22 11:26:26,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-10-22 11:26:26,696 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:26,696 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:26,696 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:26,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:26,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1384539631, now seen corresponding path program 1 times [2019-10-22 11:26:26,697 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:26,697 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95824355] [2019-10-22 11:26:26,697 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:26,697 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:26,697 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:26,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:26,778 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 11:26:26,779 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95824355] [2019-10-22 11:26:26,779 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:26,780 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:26:26,780 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990623514] [2019-10-22 11:26:26,780 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:26:26,780 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:26,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:26:26,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:26:26,781 INFO L87 Difference]: Start difference. First operand 182 states and 240 transitions. Second operand 6 states. [2019-10-22 11:26:26,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:26,950 INFO L93 Difference]: Finished difference Result 872 states and 1186 transitions. [2019-10-22 11:26:26,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-22 11:26:26,951 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2019-10-22 11:26:26,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:26,953 INFO L225 Difference]: With dead ends: 872 [2019-10-22 11:26:26,953 INFO L226 Difference]: Without dead ends: 696 [2019-10-22 11:26:26,954 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2019-10-22 11:26:26,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2019-10-22 11:26:26,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 356. [2019-10-22 11:26:26,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2019-10-22 11:26:26,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 466 transitions. [2019-10-22 11:26:26,985 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 466 transitions. Word has length 50 [2019-10-22 11:26:26,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:26,986 INFO L462 AbstractCegarLoop]: Abstraction has 356 states and 466 transitions. [2019-10-22 11:26:26,986 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:26:26,986 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 466 transitions. [2019-10-22 11:26:26,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-22 11:26:26,991 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:26,992 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-22 11:26:26,992 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:26,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:26,992 INFO L82 PathProgramCache]: Analyzing trace with hash -1234394969, now seen corresponding path program 1 times [2019-10-22 11:26:26,993 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:26,993 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994378226] [2019-10-22 11:26:26,993 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:26,993 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:26,993 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:27,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:27,052 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 11:26:27,052 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994378226] [2019-10-22 11:26:27,052 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:27,052 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:26:27,052 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650132941] [2019-10-22 11:26:27,053 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:26:27,053 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:27,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:26:27,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:26:27,053 INFO L87 Difference]: Start difference. First operand 356 states and 466 transitions. Second operand 5 states. [2019-10-22 11:26:27,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:27,238 INFO L93 Difference]: Finished difference Result 962 states and 1267 transitions. [2019-10-22 11:26:27,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:26:27,239 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2019-10-22 11:26:27,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:27,242 INFO L225 Difference]: With dead ends: 962 [2019-10-22 11:26:27,242 INFO L226 Difference]: Without dead ends: 960 [2019-10-22 11:26:27,244 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 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 11:26:27,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2019-10-22 11:26:27,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 356. [2019-10-22 11:26:27,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2019-10-22 11:26:27,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 464 transitions. [2019-10-22 11:26:27,278 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 464 transitions. Word has length 51 [2019-10-22 11:26:27,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:27,278 INFO L462 AbstractCegarLoop]: Abstraction has 356 states and 464 transitions. [2019-10-22 11:26:27,278 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:26:27,278 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 464 transitions. [2019-10-22 11:26:27,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-22 11:26:27,279 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:27,279 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:27,280 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:27,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:27,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1017395360, now seen corresponding path program 1 times [2019-10-22 11:26:27,280 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:27,280 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630320322] [2019-10-22 11:26:27,280 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:27,280 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:27,281 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:27,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:27,362 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:27,363 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630320322] [2019-10-22 11:26:27,363 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953130889] [2019-10-22 11:26:27,363 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/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 11:26:27,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:27,501 INFO L256 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:26:27,506 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:27,528 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:27,528 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:27,556 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:27,556 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1530722011] [2019-10-22 11:26:27,561 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 58 [2019-10-22 11:26:27,605 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-10-22 11:26:27,606 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-22 11:26:27,994 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:26:27,995 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 11:26:27,999 INFO L168 Benchmark]: Toolchain (without parser) took 4875.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 207.6 MB). Free memory was 939.2 MB in the beginning and 997.4 MB in the end (delta: -58.3 MB). Peak memory consumption was 149.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:28,000 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:26:28,000 INFO L168 Benchmark]: CACSL2BoogieTranslator took 520.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -163.7 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:28,001 INFO L168 Benchmark]: Boogie Procedure Inliner took 105.55 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: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:28,001 INFO L168 Benchmark]: Boogie Preprocessor took 72.73 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: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:28,001 INFO L168 Benchmark]: RCFGBuilder took 1029.57 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: 79.4 MB). Peak memory consumption was 79.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:28,002 INFO L168 Benchmark]: TraceAbstraction took 3143.71 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 86.0 MB). Free memory was 1.0 GB in the beginning and 997.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 90.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:28,004 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 520.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -163.7 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 105.55 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: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 72.73 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: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1029.57 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: 79.4 MB). Peak memory consumption was 79.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3143.71 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 86.0 MB). Free memory was 1.0 GB in the beginning and 997.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 90.7 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 11:26:30,038 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:26:30,039 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:26:30,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:26:30,048 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:26:30,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:26:30,050 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:26:30,051 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:26:30,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:26:30,054 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:26:30,055 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:26:30,055 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:26:30,056 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:26:30,056 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:26:30,057 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:26:30,058 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:26:30,058 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:26:30,059 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:26:30,060 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:26:30,062 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:26:30,063 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:26:30,064 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:26:30,065 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:26:30,065 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:26:30,067 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:26:30,068 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:26:30,068 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:26:30,068 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:26:30,069 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:26:30,070 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:26:30,070 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:26:30,071 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:26:30,071 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:26:30,072 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:26:30,073 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:26:30,073 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:26:30,074 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:26:30,074 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:26:30,074 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:26:30,075 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:26:30,075 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:26:30,076 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:26:30,087 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:26:30,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:26:30,088 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:26:30,089 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:26:30,089 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:26:30,089 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:26:30,089 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:26:30,089 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:26:30,090 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:26:30,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:26:30,090 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:26:30,091 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:26:30,091 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:26:30,091 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:26:30,091 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:26:30,091 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:26:30,091 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:26:30,092 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:26:30,092 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:26:30,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:26:30,092 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:26:30,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:26:30,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:26:30,093 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:26:30,093 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:26:30,093 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:26:30,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:26:30,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:26:30,093 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:26:30,094 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:26:30,094 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:26:30,094 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:26:30,094 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:26:30,094 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:26:30,094 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_ed8d6aeb-e30c-4688-af1f-0412d9762456/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 -> ae33dcba0147a107c551c432e2bfc2c49f1e3070 [2019-10-22 11:26:30,136 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:26:30,146 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:26:30,150 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:26:30,151 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:26:30,152 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:26:30,152 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c [2019-10-22 11:26:30,201 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/bin/utaipan/data/81fb2abc0/bc6fb5fa78364b368540ba4e4cb8c371/FLAG47ad073d8 [2019-10-22 11:26:30,628 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:26:30,629 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c [2019-10-22 11:26:30,638 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/bin/utaipan/data/81fb2abc0/bc6fb5fa78364b368540ba4e4cb8c371/FLAG47ad073d8 [2019-10-22 11:26:30,653 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/bin/utaipan/data/81fb2abc0/bc6fb5fa78364b368540ba4e4cb8c371 [2019-10-22 11:26:30,655 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:26:30,656 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:26:30,657 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:26:30,657 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:26:30,660 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:26:30,660 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:26:30" (1/1) ... [2019-10-22 11:26:30,663 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64fff581 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:30, skipping insertion in model container [2019-10-22 11:26:30,663 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:26:30" (1/1) ... [2019-10-22 11:26:30,669 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:26:30,702 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:26:31,028 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:26:31,104 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:26:31,179 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:26:31,206 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:26:31,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:31 WrapperNode [2019-10-22 11:26:31,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:26:31,207 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:26:31,207 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:26:31,207 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:26:31,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:31" (1/1) ... [2019-10-22 11:26:31,231 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:31" (1/1) ... [2019-10-22 11:26:31,273 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:26:31,273 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:26:31,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:26:31,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:26:31,282 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:31" (1/1) ... [2019-10-22 11:26:31,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:31" (1/1) ... [2019-10-22 11:26:31,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:31" (1/1) ... [2019-10-22 11:26:31,288 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:31" (1/1) ... [2019-10-22 11:26:31,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:31" (1/1) ... [2019-10-22 11:26:31,310 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:31" (1/1) ... [2019-10-22 11:26:31,314 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:31" (1/1) ... [2019-10-22 11:26:31,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:26:31,319 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:26:31,319 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:26:31,319 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:26:31,320 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/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 11:26:31,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:26:31,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-10-22 11:26:31,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:26:31,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:26:32,400 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:26:32,400 INFO L284 CfgBuilder]: Removed 276 assume(true) statements. [2019-10-22 11:26:32,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:32 BoogieIcfgContainer [2019-10-22 11:26:32,401 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:26:32,402 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:26:32,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:26:32,407 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:26:32,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:26:30" (1/3) ... [2019-10-22 11:26:32,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19060b2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:26:32, skipping insertion in model container [2019-10-22 11:26:32,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:31" (2/3) ... [2019-10-22 11:26:32,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19060b2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:26:32, skipping insertion in model container [2019-10-22 11:26:32,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:32" (3/3) ... [2019-10-22 11:26:32,410 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product53.cil.c [2019-10-22 11:26:32,420 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:26:32,430 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:26:32,440 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:26:32,458 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:26:32,458 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:26:32,459 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:26:32,459 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:26:32,459 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:26:32,459 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:26:32,459 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:26:32,459 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:26:32,477 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states. [2019-10-22 11:26:32,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 11:26:32,483 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:32,484 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:32,485 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:32,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:32,490 INFO L82 PathProgramCache]: Analyzing trace with hash 2002794138, now seen corresponding path program 1 times [2019-10-22 11:26:32,497 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:32,497 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1089835322] [2019-10-22 11:26:32,498 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/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 11:26:32,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:32,656 INFO L256 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-22 11:26:32,661 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:32,674 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 11:26:32,675 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:32,679 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 11:26:32,680 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1089835322] [2019-10-22 11:26:32,680 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:32,680 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 11:26:32,681 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082906430] [2019-10-22 11:26:32,685 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:26:32,685 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:32,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:26:32,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:26:32,701 INFO L87 Difference]: Start difference. First operand 189 states. Second operand 2 states. [2019-10-22 11:26:32,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:32,743 INFO L93 Difference]: Finished difference Result 372 states and 569 transitions. [2019-10-22 11:26:32,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:26:32,744 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-10-22 11:26:32,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:32,754 INFO L225 Difference]: With dead ends: 372 [2019-10-22 11:26:32,758 INFO L226 Difference]: Without dead ends: 185 [2019-10-22 11:26:32,762 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 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 11:26:32,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2019-10-22 11:26:32,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2019-10-22 11:26:32,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2019-10-22 11:26:32,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 276 transitions. [2019-10-22 11:26:32,802 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 276 transitions. Word has length 16 [2019-10-22 11:26:32,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:32,802 INFO L462 AbstractCegarLoop]: Abstraction has 185 states and 276 transitions. [2019-10-22 11:26:32,802 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:26:32,803 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 276 transitions. [2019-10-22 11:26:32,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 11:26:32,803 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:32,804 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:33,004 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:26:33,005 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:33,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:33,005 INFO L82 PathProgramCache]: Analyzing trace with hash 956037241, now seen corresponding path program 1 times [2019-10-22 11:26:33,006 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:33,006 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1167839037] [2019-10-22 11:26:33,006 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/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 11:26:33,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:33,145 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:26:33,146 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:33,163 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 11:26:33,163 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:33,170 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 11:26:33,171 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1167839037] [2019-10-22 11:26:33,171 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:33,171 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-10-22 11:26:33,171 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931663268] [2019-10-22 11:26:33,172 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:26:33,173 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:33,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:26:33,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:26:33,173 INFO L87 Difference]: Start difference. First operand 185 states and 276 transitions. Second operand 4 states. [2019-10-22 11:26:33,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:33,290 INFO L93 Difference]: Finished difference Result 364 states and 546 transitions. [2019-10-22 11:26:33,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:26:33,293 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-10-22 11:26:33,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:33,295 INFO L225 Difference]: With dead ends: 364 [2019-10-22 11:26:33,295 INFO L226 Difference]: Without dead ends: 185 [2019-10-22 11:26:33,296 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 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 11:26:33,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2019-10-22 11:26:33,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2019-10-22 11:26:33,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2019-10-22 11:26:33,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 273 transitions. [2019-10-22 11:26:33,329 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 273 transitions. Word has length 17 [2019-10-22 11:26:33,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:33,330 INFO L462 AbstractCegarLoop]: Abstraction has 185 states and 273 transitions. [2019-10-22 11:26:33,331 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:26:33,331 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 273 transitions. [2019-10-22 11:26:33,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 11:26:33,331 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:33,332 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 11:26:33,533 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:26:33,534 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:33,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:33,534 INFO L82 PathProgramCache]: Analyzing trace with hash -164461115, now seen corresponding path program 1 times [2019-10-22 11:26:33,534 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:33,535 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2019943066] [2019-10-22 11:26:33,535 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/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 11:26:33,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:33,659 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:26:33,660 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:33,670 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 11:26:33,671 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:33,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:33,673 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2019943066] [2019-10-22 11:26:33,673 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:33,673 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-22 11:26:33,673 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920493828] [2019-10-22 11:26:33,674 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:26:33,674 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:33,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:26:33,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:33,680 INFO L87 Difference]: Start difference. First operand 185 states and 273 transitions. Second operand 3 states. [2019-10-22 11:26:33,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:33,866 INFO L93 Difference]: Finished difference Result 375 states and 549 transitions. [2019-10-22 11:26:33,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:26:33,867 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-10-22 11:26:33,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:33,868 INFO L225 Difference]: With dead ends: 375 [2019-10-22 11:26:33,868 INFO L226 Difference]: Without dead ends: 196 [2019-10-22 11:26:33,869 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 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 11:26:33,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2019-10-22 11:26:33,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 190. [2019-10-22 11:26:33,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2019-10-22 11:26:33,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 264 transitions. [2019-10-22 11:26:33,885 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 264 transitions. Word has length 20 [2019-10-22 11:26:33,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:33,886 INFO L462 AbstractCegarLoop]: Abstraction has 190 states and 264 transitions. [2019-10-22 11:26:33,886 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:26:33,886 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 264 transitions. [2019-10-22 11:26:33,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 11:26:33,887 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:33,887 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 11:26:34,088 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:26:34,088 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:34,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:34,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1851122998, now seen corresponding path program 1 times [2019-10-22 11:26:34,089 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:34,089 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1654412863] [2019-10-22 11:26:34,089 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/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 11:26:34,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:34,224 INFO L256 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:26:34,226 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:34,249 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 11:26:34,250 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:34,259 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 11:26:34,261 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1654412863] [2019-10-22 11:26:34,261 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:34,261 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:26:34,261 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305935047] [2019-10-22 11:26:34,262 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:26:34,262 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:34,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:26:34,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:26:34,263 INFO L87 Difference]: Start difference. First operand 190 states and 264 transitions. Second operand 5 states. [2019-10-22 11:26:34,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:34,467 INFO L93 Difference]: Finished difference Result 504 states and 681 transitions. [2019-10-22 11:26:34,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:26:34,468 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-10-22 11:26:34,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:34,469 INFO L225 Difference]: With dead ends: 504 [2019-10-22 11:26:34,469 INFO L226 Difference]: Without dead ends: 320 [2019-10-22 11:26:34,470 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 49 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 11:26:34,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2019-10-22 11:26:34,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 217. [2019-10-22 11:26:34,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2019-10-22 11:26:34,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 291 transitions. [2019-10-22 11:26:34,509 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 291 transitions. Word has length 26 [2019-10-22 11:26:34,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:34,509 INFO L462 AbstractCegarLoop]: Abstraction has 217 states and 291 transitions. [2019-10-22 11:26:34,509 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:26:34,510 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 291 transitions. [2019-10-22 11:26:34,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 11:26:34,510 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:34,510 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 11:26:34,712 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:26:34,712 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:34,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:34,712 INFO L82 PathProgramCache]: Analyzing trace with hash 218666745, now seen corresponding path program 1 times [2019-10-22 11:26:34,713 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:34,713 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1170430218] [2019-10-22 11:26:34,713 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/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 11:26:34,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:34,878 INFO L256 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:26:34,880 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:34,895 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 11:26:34,895 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:34,929 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 11:26:34,929 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1170430218] [2019-10-22 11:26:34,929 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:34,929 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-10-22 11:26:34,930 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704331275] [2019-10-22 11:26:34,930 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:26:34,930 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:34,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:26:34,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:26:34,933 INFO L87 Difference]: Start difference. First operand 217 states and 291 transitions. Second operand 8 states. [2019-10-22 11:26:35,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:35,497 INFO L93 Difference]: Finished difference Result 1566 states and 2109 transitions. [2019-10-22 11:26:35,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-22 11:26:35,497 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2019-10-22 11:26:35,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:35,502 INFO L225 Difference]: With dead ends: 1566 [2019-10-22 11:26:35,502 INFO L226 Difference]: Without dead ends: 1355 [2019-10-22 11:26:35,503 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2019-10-22 11:26:35,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1355 states. [2019-10-22 11:26:35,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1355 to 508. [2019-10-22 11:26:35,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508 states. [2019-10-22 11:26:35,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 666 transitions. [2019-10-22 11:26:35,549 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 666 transitions. Word has length 26 [2019-10-22 11:26:35,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:35,550 INFO L462 AbstractCegarLoop]: Abstraction has 508 states and 666 transitions. [2019-10-22 11:26:35,550 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:26:35,550 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 666 transitions. [2019-10-22 11:26:35,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-10-22 11:26:35,552 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:35,552 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:35,752 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:26:35,753 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:35,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:35,753 INFO L82 PathProgramCache]: Analyzing trace with hash -939291247, now seen corresponding path program 1 times [2019-10-22 11:26:35,753 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:35,754 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [475968068] [2019-10-22 11:26:35,754 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/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 11:26:35,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:35,883 INFO L256 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:26:35,884 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:35,898 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 11:26:35,898 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:35,912 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 11:26:35,912 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [475968068] [2019-10-22 11:26:35,912 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:35,912 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-10-22 11:26:35,913 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280516398] [2019-10-22 11:26:35,913 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:26:35,913 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:35,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:26:35,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:26:35,914 INFO L87 Difference]: Start difference. First operand 508 states and 666 transitions. Second operand 6 states. [2019-10-22 11:26:36,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:36,115 INFO L93 Difference]: Finished difference Result 1154 states and 1491 transitions. [2019-10-22 11:26:36,115 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:26:36,115 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2019-10-22 11:26:36,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:36,117 INFO L225 Difference]: With dead ends: 1154 [2019-10-22 11:26:36,117 INFO L226 Difference]: Without dead ends: 612 [2019-10-22 11:26:36,119 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 75 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 11:26:36,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2019-10-22 11:26:36,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 424. [2019-10-22 11:26:36,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 424 states. [2019-10-22 11:26:36,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 548 transitions. [2019-10-22 11:26:36,151 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 548 transitions. Word has length 40 [2019-10-22 11:26:36,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:36,151 INFO L462 AbstractCegarLoop]: Abstraction has 424 states and 548 transitions. [2019-10-22 11:26:36,151 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:26:36,151 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 548 transitions. [2019-10-22 11:26:36,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-10-22 11:26:36,152 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:36,153 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:36,353 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:26:36,354 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:36,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:36,354 INFO L82 PathProgramCache]: Analyzing trace with hash 387086188, now seen corresponding path program 1 times [2019-10-22 11:26:36,354 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:36,354 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1385092400] [2019-10-22 11:26:36,354 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/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 11:26:36,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:36,490 INFO L256 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:26:36,491 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:36,505 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:36,505 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:36,510 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:36,510 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1385092400] [2019-10-22 11:26:36,511 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:36,511 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-22 11:26:36,511 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964804447] [2019-10-22 11:26:36,511 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:26:36,511 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:36,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:26:36,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:36,512 INFO L87 Difference]: Start difference. First operand 424 states and 548 transitions. Second operand 3 states. [2019-10-22 11:26:36,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:36,528 INFO L93 Difference]: Finished difference Result 424 states and 548 transitions. [2019-10-22 11:26:36,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:26:36,529 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2019-10-22 11:26:36,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:36,530 INFO L225 Difference]: With dead ends: 424 [2019-10-22 11:26:36,530 INFO L226 Difference]: Without dead ends: 182 [2019-10-22 11:26:36,530 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 87 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 11:26:36,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2019-10-22 11:26:36,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2019-10-22 11:26:36,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2019-10-22 11:26:36,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 240 transitions. [2019-10-22 11:26:36,543 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 240 transitions. Word has length 45 [2019-10-22 11:26:36,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:36,544 INFO L462 AbstractCegarLoop]: Abstraction has 182 states and 240 transitions. [2019-10-22 11:26:36,544 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:26:36,544 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 240 transitions. [2019-10-22 11:26:36,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-10-22 11:26:36,545 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:36,545 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:36,746 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:26:36,746 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:36,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:36,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1384539631, now seen corresponding path program 1 times [2019-10-22 11:26:36,746 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:36,747 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [527630008] [2019-10-22 11:26:36,747 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/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 11:26:36,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:36,869 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-22 11:26:36,870 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:36,904 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 11:26:36,905 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:36,912 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 11:26:36,913 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [527630008] [2019-10-22 11:26:36,913 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:36,913 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:26:36,913 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541905628] [2019-10-22 11:26:36,914 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:26:36,914 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:36,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:26:36,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:26:36,915 INFO L87 Difference]: Start difference. First operand 182 states and 240 transitions. Second operand 6 states. [2019-10-22 11:26:37,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:37,074 INFO L93 Difference]: Finished difference Result 872 states and 1186 transitions. [2019-10-22 11:26:37,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-22 11:26:37,075 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2019-10-22 11:26:37,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:37,082 INFO L225 Difference]: With dead ends: 872 [2019-10-22 11:26:37,082 INFO L226 Difference]: Without dead ends: 696 [2019-10-22 11:26:37,083 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2019-10-22 11:26:37,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2019-10-22 11:26:37,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 356. [2019-10-22 11:26:37,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2019-10-22 11:26:37,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 466 transitions. [2019-10-22 11:26:37,122 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 466 transitions. Word has length 50 [2019-10-22 11:26:37,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:37,123 INFO L462 AbstractCegarLoop]: Abstraction has 356 states and 466 transitions. [2019-10-22 11:26:37,123 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:26:37,123 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 466 transitions. [2019-10-22 11:26:37,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-22 11:26:37,125 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:37,125 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-22 11:26:37,326 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:26:37,326 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:37,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:37,326 INFO L82 PathProgramCache]: Analyzing trace with hash -1234394969, now seen corresponding path program 1 times [2019-10-22 11:26:37,327 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:37,327 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [430134092] [2019-10-22 11:26:37,327 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/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 11:26:37,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:37,455 INFO L256 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:26:37,457 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:37,499 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 11:26:37,500 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:37,509 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 11:26:37,509 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [430134092] [2019-10-22 11:26:37,509 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:37,509 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:26:37,509 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647668585] [2019-10-22 11:26:37,510 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:26:37,510 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:37,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:26:37,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:26:37,513 INFO L87 Difference]: Start difference. First operand 356 states and 466 transitions. Second operand 5 states. [2019-10-22 11:26:37,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:37,739 INFO L93 Difference]: Finished difference Result 962 states and 1267 transitions. [2019-10-22 11:26:37,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:26:37,741 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2019-10-22 11:26:37,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:37,744 INFO L225 Difference]: With dead ends: 962 [2019-10-22 11:26:37,744 INFO L226 Difference]: Without dead ends: 960 [2019-10-22 11:26:37,744 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 100 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 11:26:37,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2019-10-22 11:26:37,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 356. [2019-10-22 11:26:37,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2019-10-22 11:26:37,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 464 transitions. [2019-10-22 11:26:37,781 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 464 transitions. Word has length 51 [2019-10-22 11:26:37,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:37,781 INFO L462 AbstractCegarLoop]: Abstraction has 356 states and 464 transitions. [2019-10-22 11:26:37,781 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:26:37,782 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 464 transitions. [2019-10-22 11:26:37,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-22 11:26:37,783 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:37,783 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:37,983 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:26:37,983 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:37,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:37,984 INFO L82 PathProgramCache]: Analyzing trace with hash 1017395360, now seen corresponding path program 1 times [2019-10-22 11:26:37,984 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:37,984 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1403045812] [2019-10-22 11:26:37,984 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/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 11:26:38,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:38,103 INFO L256 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-22 11:26:38,105 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:38,141 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-22 11:26:38,141 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:38,181 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-22 11:26:38,183 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1403045812] [2019-10-22 11:26:38,184 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782645717] [2019-10-22 11:26:38,184 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/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 11:26:38,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:38,289 INFO L256 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-22 11:26:38,290 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:38,313 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-22 11:26:38,314 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:38,321 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-22 11:26:38,325 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-22 11:26:38,325 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5] total 9 [2019-10-22 11:26:38,325 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135126626] [2019-10-22 11:26:38,327 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-22 11:26:38,327 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:38,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-22 11:26:38,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-10-22 11:26:38,327 INFO L87 Difference]: Start difference. First operand 356 states and 464 transitions. Second operand 10 states. [2019-10-22 11:26:39,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:39,190 INFO L93 Difference]: Finished difference Result 2467 states and 3257 transitions. [2019-10-22 11:26:39,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-22 11:26:39,191 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2019-10-22 11:26:39,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:39,197 INFO L225 Difference]: With dead ends: 2467 [2019-10-22 11:26:39,197 INFO L226 Difference]: Without dead ends: 2167 [2019-10-22 11:26:39,199 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 215 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2019-10-22 11:26:39,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2167 states. [2019-10-22 11:26:39,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2167 to 640. [2019-10-22 11:26:39,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 640 states. [2019-10-22 11:26:39,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 848 transitions. [2019-10-22 11:26:39,273 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 848 transitions. Word has length 57 [2019-10-22 11:26:39,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:39,273 INFO L462 AbstractCegarLoop]: Abstraction has 640 states and 848 transitions. [2019-10-22 11:26:39,273 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-22 11:26:39,274 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 848 transitions. [2019-10-22 11:26:39,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-10-22 11:26:39,275 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:39,275 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1] [2019-10-22 11:26:39,676 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 11:26:39,676 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:39,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:39,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1837292485, now seen corresponding path program 2 times [2019-10-22 11:26:39,677 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:39,677 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1012006863] [2019-10-22 11:26:39,677 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/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 11:26:41,290 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-22 11:26:41,290 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-22 11:26:41,322 INFO L256 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-22 11:26:41,325 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:41,359 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:26:41,395 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 11:26:41,395 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:41,439 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 11:26:41,439 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1012006863] [2019-10-22 11:26:41,439 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:41,457 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2019-10-22 11:26:41,457 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520907316] [2019-10-22 11:26:41,458 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 11:26:41,458 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:41,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 11:26:41,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:26:41,458 INFO L87 Difference]: Start difference. First operand 640 states and 848 transitions. Second operand 9 states. [2019-10-22 11:26:42,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:42,488 INFO L93 Difference]: Finished difference Result 2870 states and 3793 transitions. [2019-10-22 11:26:42,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-22 11:26:42,489 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2019-10-22 11:26:42,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:42,497 INFO L225 Difference]: With dead ends: 2870 [2019-10-22 11:26:42,498 INFO L226 Difference]: Without dead ends: 2124 [2019-10-22 11:26:42,499 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=148, Invalid=314, Unknown=0, NotChecked=0, Total=462 [2019-10-22 11:26:42,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2124 states. [2019-10-22 11:26:42,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2124 to 780. [2019-10-22 11:26:42,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 780 states. [2019-10-22 11:26:42,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1013 transitions. [2019-10-22 11:26:42,594 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1013 transitions. Word has length 82 [2019-10-22 11:26:42,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:42,594 INFO L462 AbstractCegarLoop]: Abstraction has 780 states and 1013 transitions. [2019-10-22 11:26:42,594 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 11:26:42,594 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1013 transitions. [2019-10-22 11:26:42,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-10-22 11:26:42,595 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:42,596 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2019-10-22 11:26:42,796 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:26:42,796 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:42,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:42,796 INFO L82 PathProgramCache]: Analyzing trace with hash 1442925699, now seen corresponding path program 1 times [2019-10-22 11:26:42,797 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:42,797 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1789506018] [2019-10-22 11:26:42,797 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/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 11:26:42,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:42,935 INFO L256 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:26:42,937 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:42,958 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-22 11:26:42,959 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:42,978 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-22 11:26:42,978 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1789506018] [2019-10-22 11:26:42,978 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:42,978 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-10-22 11:26:42,979 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629149655] [2019-10-22 11:26:42,979 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:26:42,979 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:42,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:26:42,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:26:42,979 INFO L87 Difference]: Start difference. First operand 780 states and 1013 transitions. Second operand 8 states. [2019-10-22 11:26:43,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:43,061 INFO L93 Difference]: Finished difference Result 1170 states and 1497 transitions. [2019-10-22 11:26:43,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:26:43,062 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 82 [2019-10-22 11:26:43,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:43,062 INFO L225 Difference]: With dead ends: 1170 [2019-10-22 11:26:43,063 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:26:43,064 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-10-22 11:26:43,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:26:43,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:26:43,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:26:43,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:26:43,064 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 82 [2019-10-22 11:26:43,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:43,065 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:26:43,065 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:26:43,065 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:26:43,065 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:26:43,265 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:26:43,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:26:43,479 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 49 [2019-10-22 11:26:43,702 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 143 [2019-10-22 11:26:43,860 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 111 [2019-10-22 11:26:44,188 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 155 [2019-10-22 11:26:44,557 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 169 [2019-10-22 11:26:44,724 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 152 [2019-10-22 11:26:44,876 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 145 [2019-10-22 11:26:45,145 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 25 [2019-10-22 11:26:45,706 WARN L191 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 30 [2019-10-22 11:26:45,962 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 34 [2019-10-22 11:26:46,802 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 30 [2019-10-22 11:26:47,097 WARN L191 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 26 [2019-10-22 11:26:47,232 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 31 [2019-10-22 11:26:48,086 WARN L191 SmtUtils]: Spent 842.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 35 [2019-10-22 11:26:48,785 WARN L191 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 38 [2019-10-22 11:26:49,360 WARN L191 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 29 [2019-10-22 11:26:49,733 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 23 [2019-10-22 11:26:49,745 INFO L443 ceAbstractionStarter]: For program point L762(lines 762 766) no Hoare annotation was computed. [2019-10-22 11:26:49,745 INFO L443 ceAbstractionStarter]: For program point L762-3(lines 762 766) no Hoare annotation was computed. [2019-10-22 11:26:49,745 INFO L443 ceAbstractionStarter]: For program point L762-6(lines 762 766) no Hoare annotation was computed. [2019-10-22 11:26:49,745 INFO L443 ceAbstractionStarter]: For program point L697(lines 697 701) no Hoare annotation was computed. [2019-10-22 11:26:49,745 INFO L443 ceAbstractionStarter]: For program point L697-2(lines 697 701) no Hoare annotation was computed. [2019-10-22 11:26:49,745 INFO L443 ceAbstractionStarter]: For program point L697-3(lines 697 701) no Hoare annotation was computed. [2019-10-22 11:26:49,746 INFO L443 ceAbstractionStarter]: For program point L697-5(lines 697 701) no Hoare annotation was computed. [2019-10-22 11:26:49,746 INFO L439 ceAbstractionStarter]: At program point L499(lines 499 505) the Hoare annotation is: (let ((.cse3 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (let ((.cse0 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse1 (and (= (_ bv0 32) ~pumpRunning~0) .cse3)) (.cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~7 (_ bv4294967295 32)) (_ bv0 32)) .cse0 .cse1 .cse2) (and (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) (and .cse0 .cse3)) (and (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) (and .cse0 .cse1) .cse2 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv0 32))))))) [2019-10-22 11:26:49,746 INFO L443 ceAbstractionStarter]: For program point L697-6(lines 697 701) no Hoare annotation was computed. [2019-10-22 11:26:49,746 INFO L439 ceAbstractionStarter]: At program point L466(lines 419 467) 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 11:26:49,746 INFO L439 ceAbstractionStarter]: At program point L499-1(lines 499 505) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~7 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:26:49,746 INFO L443 ceAbstractionStarter]: For program point L697-8(lines 697 701) no Hoare annotation was computed. [2019-10-22 11:26:49,746 INFO L439 ceAbstractionStarter]: At program point L499-2(lines 499 505) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~7 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:26:49,746 INFO L443 ceAbstractionStarter]: For program point L697-9(lines 697 701) no Hoare annotation was computed. [2019-10-22 11:26:49,746 INFO L443 ceAbstractionStarter]: For program point L697-11(lines 697 701) no Hoare annotation was computed. [2019-10-22 11:26:49,746 INFO L443 ceAbstractionStarter]: For program point L697-12(lines 697 701) no Hoare annotation was computed. [2019-10-22 11:26:49,746 INFO L443 ceAbstractionStarter]: For program point L697-14(lines 697 701) no Hoare annotation was computed. [2019-10-22 11:26:49,747 INFO L443 ceAbstractionStarter]: For program point L697-15(lines 697 701) no Hoare annotation was computed. [2019-10-22 11:26:49,747 INFO L443 ceAbstractionStarter]: For program point L697-17(lines 697 701) no Hoare annotation was computed. [2019-10-22 11:26:49,747 INFO L439 ceAbstractionStarter]: At program point L896-2(lines 896 910) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~7 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:26:49,747 INFO L443 ceAbstractionStarter]: For program point L897(line 897) no Hoare annotation was computed. [2019-10-22 11:26:49,747 INFO L439 ceAbstractionStarter]: At program point L831(lines 826 834) the Hoare annotation is: (let ((.cse0 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse1 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (and .cse0 (and (= (_ bv0 32) ~pumpRunning~0) .cse1)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) (and (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) .cse0 .cse1))) [2019-10-22 11:26:49,747 INFO L439 ceAbstractionStarter]: At program point L831-1(lines 826 834) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~7 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:26:49,747 INFO L439 ceAbstractionStarter]: At program point L831-2(lines 826 834) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~7 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:26:49,747 INFO L439 ceAbstractionStarter]: At program point L799(lines 794 802) the Hoare annotation is: (and (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv0 32)))) [2019-10-22 11:26:49,747 INFO L439 ceAbstractionStarter]: At program point L799-1(lines 794 802) the Hoare annotation is: false [2019-10-22 11:26:49,747 INFO L439 ceAbstractionStarter]: At program point L733(lines 1 979) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= ~methaneLevelCritical~0 (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:26:49,747 INFO L439 ceAbstractionStarter]: At program point L799-2(lines 794 802) the Hoare annotation is: false [2019-10-22 11:26:49,748 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 750) no Hoare annotation was computed. [2019-10-22 11:26:49,748 INFO L443 ceAbstractionStarter]: For program point L900(lines 900 904) no Hoare annotation was computed. [2019-10-22 11:26:49,748 INFO L443 ceAbstractionStarter]: For program point L867(lines 867 880) no Hoare annotation was computed. [2019-10-22 11:26:49,748 INFO L443 ceAbstractionStarter]: For program point L900-1(lines 492 498) no Hoare annotation was computed. [2019-10-22 11:26:49,748 INFO L439 ceAbstractionStarter]: At program point L867-1(lines 1 979) the Hoare annotation is: (let ((.cse2 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse3 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse0 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32)))) (or (and (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) .cse0 .cse1 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv0 32)))) (and (and .cse2 .cse0 .cse1) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv4294967295 32)) (_ bv0 32)) .cse3 (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) (and (and .cse2 .cse1 .cse3) .cse0 (= ~methaneLevelCritical~0 (_ bv0 32))))) [2019-10-22 11:26:49,748 INFO L443 ceAbstractionStarter]: For program point L867-2(lines 867 880) no Hoare annotation was computed. [2019-10-22 11:26:49,748 INFO L439 ceAbstractionStarter]: At program point L867-3(lines 1 979) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~7 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:26:49,748 INFO L443 ceAbstractionStarter]: For program point L867-4(lines 867 880) no Hoare annotation was computed. [2019-10-22 11:26:49,748 INFO L439 ceAbstractionStarter]: At program point L867-5(lines 1 979) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~7 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:26:49,749 INFO L443 ceAbstractionStarter]: For program point L967(lines 967 974) no Hoare annotation was computed. [2019-10-22 11:26:49,749 INFO L446 ceAbstractionStarter]: At program point L967-1(lines 967 974) the Hoare annotation is: true [2019-10-22 11:26:49,749 INFO L439 ceAbstractionStarter]: At program point L703(lines 688 706) the Hoare annotation is: (and (= (bvadd ULTIMATE.start_isLowWaterLevel_~tmp___0~2 (_ bv4294967295 32)) (_ bv0 32)) (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32)) (= (bvadd |ULTIMATE.start_isLowWaterLevel_#res| (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start_isLowWaterLevel_~tmp~8 (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv0 32))) (= ULTIMATE.start_processEnvironment_~tmp~6 (_ bv0 32))) [2019-10-22 11:26:49,749 INFO L439 ceAbstractionStarter]: At program point L703-1(lines 688 706) the Hoare annotation is: false [2019-10-22 11:26:49,749 INFO L439 ceAbstractionStarter]: At program point L703-2(lines 688 706) the Hoare annotation is: false [2019-10-22 11:26:49,749 INFO L439 ceAbstractionStarter]: At program point L703-3(lines 688 706) the Hoare annotation is: false [2019-10-22 11:26:49,749 INFO L439 ceAbstractionStarter]: At program point L703-4(lines 688 706) the Hoare annotation is: false [2019-10-22 11:26:49,749 INFO L439 ceAbstractionStarter]: At program point L703-5(lines 688 706) the Hoare annotation is: false [2019-10-22 11:26:49,749 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 750) no Hoare annotation was computed. [2019-10-22 11:26:49,749 INFO L443 ceAbstractionStarter]: For program point L440(lines 440 446) no Hoare annotation was computed. [2019-10-22 11:26:49,749 INFO L439 ceAbstractionStarter]: At program point L440-1(lines 440 446) the Hoare annotation is: (let ((.cse0 (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32))) (.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse3 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32)))) (or (and .cse0 (and (and .cse1 .cse2) .cse3)) (and .cse0 (and .cse3 .cse2) (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv0 32)))) (and (and .cse1 .cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) .cse3))) [2019-10-22 11:26:49,749 INFO L443 ceAbstractionStarter]: For program point L871(lines 871 877) no Hoare annotation was computed. [2019-10-22 11:26:49,749 INFO L443 ceAbstractionStarter]: For program point L871-2(lines 871 877) no Hoare annotation was computed. [2019-10-22 11:26:49,750 INFO L443 ceAbstractionStarter]: For program point L871-4(lines 871 877) no Hoare annotation was computed. [2019-10-22 11:26:49,750 INFO L443 ceAbstractionStarter]: For program point L839(lines 839 845) no Hoare annotation was computed. [2019-10-22 11:26:49,750 INFO L443 ceAbstractionStarter]: For program point L839-1(lines 839 845) no Hoare annotation was computed. [2019-10-22 11:26:49,750 INFO L443 ceAbstractionStarter]: For program point L839-2(lines 839 845) no Hoare annotation was computed. [2019-10-22 11:26:49,750 INFO L443 ceAbstractionStarter]: For program point L839-3(lines 839 845) no Hoare annotation was computed. [2019-10-22 11:26:49,750 INFO L443 ceAbstractionStarter]: For program point L839-4(lines 839 845) no Hoare annotation was computed. [2019-10-22 11:26:49,750 INFO L443 ceAbstractionStarter]: For program point L839-5(lines 839 845) no Hoare annotation was computed. [2019-10-22 11:26:49,750 INFO L443 ceAbstractionStarter]: For program point L839-6(lines 839 845) no Hoare annotation was computed. [2019-10-22 11:26:49,750 INFO L443 ceAbstractionStarter]: For program point L839-7(lines 839 845) no Hoare annotation was computed. [2019-10-22 11:26:49,751 INFO L443 ceAbstractionStarter]: For program point L839-8(lines 839 845) no Hoare annotation was computed. [2019-10-22 11:26:49,751 INFO L443 ceAbstractionStarter]: For program point L839-9(lines 839 845) no Hoare annotation was computed. [2019-10-22 11:26:49,751 INFO L443 ceAbstractionStarter]: For program point L839-10(lines 839 845) no Hoare annotation was computed. [2019-10-22 11:26:49,751 INFO L443 ceAbstractionStarter]: For program point L839-11(lines 839 845) no Hoare annotation was computed. [2019-10-22 11:26:49,751 INFO L443 ceAbstractionStarter]: For program point L774(lines 774 778) no Hoare annotation was computed. [2019-10-22 11:26:49,752 INFO L439 ceAbstractionStarter]: At program point L741(lines 736 744) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= ~methaneLevelCritical~0 (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:26:49,752 INFO L443 ceAbstractionStarter]: For program point L576(lines 576 593) no Hoare annotation was computed. [2019-10-22 11:26:49,752 INFO L443 ceAbstractionStarter]: For program point L576-1(lines 576 593) no Hoare annotation was computed. [2019-10-22 11:26:49,752 INFO L443 ceAbstractionStarter]: For program point L576-2(lines 576 593) no Hoare annotation was computed. [2019-10-22 11:26:49,752 INFO L443 ceAbstractionStarter]: For program point L678(lines 678 682) no Hoare annotation was computed. [2019-10-22 11:26:49,752 INFO L443 ceAbstractionStarter]: For program point L678-2(lines 678 682) no Hoare annotation was computed. [2019-10-22 11:26:49,752 INFO L443 ceAbstractionStarter]: For program point L678-3(lines 678 682) no Hoare annotation was computed. [2019-10-22 11:26:49,752 INFO L443 ceAbstractionStarter]: For program point L678-5(lines 678 682) no Hoare annotation was computed. [2019-10-22 11:26:49,752 INFO L443 ceAbstractionStarter]: For program point L678-6(lines 678 682) no Hoare annotation was computed. [2019-10-22 11:26:49,752 INFO L443 ceAbstractionStarter]: For program point L678-8(lines 678 682) no Hoare annotation was computed. [2019-10-22 11:26:49,752 INFO L443 ceAbstractionStarter]: For program point L678-9(lines 678 682) no Hoare annotation was computed. [2019-10-22 11:26:49,752 INFO L443 ceAbstractionStarter]: For program point L678-11(lines 678 682) no Hoare annotation was computed. [2019-10-22 11:26:49,753 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 750) no Hoare annotation was computed. [2019-10-22 11:26:49,753 INFO L443 ceAbstractionStarter]: For program point L678-12(lines 678 682) no Hoare annotation was computed. [2019-10-22 11:26:49,753 INFO L443 ceAbstractionStarter]: For program point L678-14(lines 678 682) no Hoare annotation was computed. [2019-10-22 11:26:49,753 INFO L443 ceAbstractionStarter]: For program point L678-15(lines 678 682) no Hoare annotation was computed. [2019-10-22 11:26:49,753 INFO L443 ceAbstractionStarter]: For program point L678-17(lines 678 682) no Hoare annotation was computed. [2019-10-22 11:26:49,753 INFO L443 ceAbstractionStarter]: For program point L678-18(lines 678 682) no Hoare annotation was computed. [2019-10-22 11:26:49,753 INFO L443 ceAbstractionStarter]: For program point L678-20(lines 678 682) no Hoare annotation was computed. [2019-10-22 11:26:49,753 INFO L443 ceAbstractionStarter]: For program point L678-21(lines 678 682) no Hoare annotation was computed. [2019-10-22 11:26:49,753 INFO L446 ceAbstractionStarter]: At program point L976(lines 957 979) the Hoare annotation is: true [2019-10-22 11:26:49,753 INFO L443 ceAbstractionStarter]: For program point L678-23(lines 678 682) no Hoare annotation was computed. [2019-10-22 11:26:49,753 INFO L443 ceAbstractionStarter]: For program point L678-24(lines 678 682) no Hoare annotation was computed. [2019-10-22 11:26:49,753 INFO L439 ceAbstractionStarter]: At program point L844(lines 835 848) the Hoare annotation is: false [2019-10-22 11:26:49,753 INFO L443 ceAbstractionStarter]: For program point L678-26(lines 678 682) no Hoare annotation was computed. [2019-10-22 11:26:49,754 INFO L439 ceAbstractionStarter]: At program point L844-1(lines 835 848) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) (= (_ bv0 32) ~pumpRunning~0) (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv0 32))) (= ULTIMATE.start_processEnvironment_~tmp~6 (_ bv0 32))) [2019-10-22 11:26:49,754 INFO L443 ceAbstractionStarter]: For program point L678-27(lines 678 682) no Hoare annotation was computed. [2019-10-22 11:26:49,754 INFO L439 ceAbstractionStarter]: At program point L844-2(lines 835 848) the Hoare annotation is: false [2019-10-22 11:26:49,754 INFO L439 ceAbstractionStarter]: At program point L844-3(lines 835 848) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) .cse0 .cse1 .cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (and (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) (and .cse0 .cse1 .cse2)))) [2019-10-22 11:26:49,754 INFO L443 ceAbstractionStarter]: For program point L678-29(lines 678 682) no Hoare annotation was computed. [2019-10-22 11:26:49,754 INFO L439 ceAbstractionStarter]: At program point L844-4(lines 835 848) the Hoare annotation is: false [2019-10-22 11:26:49,754 INFO L443 ceAbstractionStarter]: For program point L678-30(lines 678 682) no Hoare annotation was computed. [2019-10-22 11:26:49,755 INFO L439 ceAbstractionStarter]: At program point L844-5(lines 835 848) the Hoare annotation is: false [2019-10-22 11:26:49,755 INFO L439 ceAbstractionStarter]: At program point L844-6(lines 835 848) the Hoare annotation is: false [2019-10-22 11:26:49,755 INFO L443 ceAbstractionStarter]: For program point L678-32(lines 678 682) no Hoare annotation was computed. [2019-10-22 11:26:49,755 INFO L439 ceAbstractionStarter]: At program point L844-7(lines 835 848) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:26:49,755 INFO L443 ceAbstractionStarter]: For program point L678-33(lines 678 682) no Hoare annotation was computed. [2019-10-22 11:26:49,755 INFO L443 ceAbstractionStarter]: For program point L580(lines 580 588) no Hoare annotation was computed. [2019-10-22 11:26:49,755 INFO L439 ceAbstractionStarter]: At program point L844-8(lines 835 848) the Hoare annotation is: false [2019-10-22 11:26:49,756 INFO L443 ceAbstractionStarter]: For program point L580-1(lines 580 588) no Hoare annotation was computed. [2019-10-22 11:26:49,756 INFO L439 ceAbstractionStarter]: At program point L844-9(lines 835 848) the Hoare annotation is: false [2019-10-22 11:26:49,756 INFO L443 ceAbstractionStarter]: For program point L678-35(lines 678 682) no Hoare annotation was computed. [2019-10-22 11:26:49,756 INFO L443 ceAbstractionStarter]: For program point L580-2(lines 580 588) no Hoare annotation was computed. [2019-10-22 11:26:49,756 INFO L439 ceAbstractionStarter]: At program point L844-10(lines 835 848) the Hoare annotation is: false [2019-10-22 11:26:49,756 INFO L439 ceAbstractionStarter]: At program point L844-11(lines 835 848) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:26:49,756 INFO L439 ceAbstractionStarter]: At program point L944(lines 940 946) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= ~methaneLevelCritical~0 (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:26:49,756 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:26:49,756 INFO L443 ceAbstractionStarter]: For program point L450(lines 450 461) no Hoare annotation was computed. [2019-10-22 11:26:49,756 INFO L443 ceAbstractionStarter]: For program point L550(lines 550 567) no Hoare annotation was computed. [2019-10-22 11:26:49,756 INFO L443 ceAbstractionStarter]: For program point L550-1(lines 550 567) no Hoare annotation was computed. [2019-10-22 11:26:49,756 INFO L443 ceAbstractionStarter]: For program point L550-2(lines 550 567) no Hoare annotation was computed. [2019-10-22 11:26:49,756 INFO L443 ceAbstractionStarter]: For program point L550-3(lines 550 567) no Hoare annotation was computed. [2019-10-22 11:26:49,757 INFO L443 ceAbstractionStarter]: For program point L550-4(lines 550 567) no Hoare annotation was computed. [2019-10-22 11:26:49,757 INFO L443 ceAbstractionStarter]: For program point L550-5(lines 550 567) no Hoare annotation was computed. [2019-10-22 11:26:49,757 INFO L443 ceAbstractionStarter]: For program point L750(line 750) no Hoare annotation was computed. [2019-10-22 11:26:49,757 INFO L443 ceAbstractionStarter]: For program point L750-1(line 750) no Hoare annotation was computed. [2019-10-22 11:26:49,757 INFO L439 ceAbstractionStarter]: At program point L684(lines 669 687) the Hoare annotation is: false [2019-10-22 11:26:49,757 INFO L443 ceAbstractionStarter]: For program point L750-2(line 750) no Hoare annotation was computed. [2019-10-22 11:26:49,757 INFO L439 ceAbstractionStarter]: At program point L684-1(lines 669 687) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~7 (_ bv4294967295 32)) (_ bv0 32)) (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) (= (_ bv0 32) ~pumpRunning~0) (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32)) (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv0 32))) (= ULTIMATE.start_processEnvironment_~tmp~6 (_ bv0 32))) [2019-10-22 11:26:49,757 INFO L439 ceAbstractionStarter]: At program point L684-2(lines 669 687) the Hoare annotation is: false [2019-10-22 11:26:49,757 INFO L439 ceAbstractionStarter]: At program point L684-3(lines 669 687) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~7 (_ bv4294967295 32)) (_ bv0 32)) .cse0 .cse1 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv0 32)) .cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (and (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) (and .cse0 .cse1 .cse2)))) [2019-10-22 11:26:49,757 INFO L439 ceAbstractionStarter]: At program point L684-4(lines 669 687) the Hoare annotation is: false [2019-10-22 11:26:49,758 INFO L439 ceAbstractionStarter]: At program point L684-5(lines 669 687) the Hoare annotation is: false [2019-10-22 11:26:49,758 INFO L439 ceAbstractionStarter]: At program point L684-6(lines 669 687) the Hoare annotation is: false [2019-10-22 11:26:49,758 INFO L439 ceAbstractionStarter]: At program point L684-7(lines 669 687) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~7 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:26:49,758 INFO L439 ceAbstractionStarter]: At program point L684-8(lines 669 687) the Hoare annotation is: false [2019-10-22 11:26:49,758 INFO L439 ceAbstractionStarter]: At program point L684-9(lines 669 687) the Hoare annotation is: false [2019-10-22 11:26:49,758 INFO L439 ceAbstractionStarter]: At program point L684-10(lines 669 687) the Hoare annotation is: false [2019-10-22 11:26:49,758 INFO L439 ceAbstractionStarter]: At program point L684-11(lines 669 687) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~7 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv4294967295 32)) (_ bv0 32)) (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:26:49,759 INFO L443 ceAbstractionStarter]: For program point L421(lines 420 465) no Hoare annotation was computed. [2019-10-22 11:26:49,759 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:26:49,759 INFO L439 ceAbstractionStarter]: At program point L620(lines 613 623) the Hoare annotation is: (and (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv0 32)))) [2019-10-22 11:26:49,759 INFO L439 ceAbstractionStarter]: At program point L620-1(lines 613 623) the Hoare annotation is: false [2019-10-22 11:26:49,759 INFO L443 ceAbstractionStarter]: For program point L554(lines 554 562) no Hoare annotation was computed. [2019-10-22 11:26:49,759 INFO L439 ceAbstractionStarter]: At program point L620-2(lines 613 623) the Hoare annotation is: false [2019-10-22 11:26:49,759 INFO L443 ceAbstractionStarter]: For program point L554-1(lines 554 562) no Hoare annotation was computed. [2019-10-22 11:26:49,760 INFO L443 ceAbstractionStarter]: For program point L554-2(lines 554 562) no Hoare annotation was computed. [2019-10-22 11:26:49,760 INFO L443 ceAbstractionStarter]: For program point L554-3(lines 554 562) no Hoare annotation was computed. [2019-10-22 11:26:49,760 INFO L443 ceAbstractionStarter]: For program point L422(lines 422 426) no Hoare annotation was computed. [2019-10-22 11:26:49,760 INFO L443 ceAbstractionStarter]: For program point L554-4(lines 554 562) no Hoare annotation was computed. [2019-10-22 11:26:49,760 INFO L443 ceAbstractionStarter]: For program point L554-5(lines 554 562) no Hoare annotation was computed. [2019-10-22 11:26:49,760 INFO L443 ceAbstractionStarter]: For program point L786(lines 786 790) no Hoare annotation was computed. [2019-10-22 11:26:49,760 INFO L443 ceAbstractionStarter]: For program point L456(lines 456 460) no Hoare annotation was computed. [2019-10-22 11:26:49,760 INFO L443 ceAbstractionStarter]: For program point L456-2(lines 492 498) no Hoare annotation was computed. [2019-10-22 11:26:49,760 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:26:49,760 INFO L439 ceAbstractionStarter]: At program point L854(lines 849 857) the Hoare annotation is: (and (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv0 32))) (= ULTIMATE.start_processEnvironment_~tmp~6 (_ bv0 32))) [2019-10-22 11:26:49,760 INFO L439 ceAbstractionStarter]: At program point L854-1(lines 849 857) the Hoare annotation is: false [2019-10-22 11:26:49,760 INFO L439 ceAbstractionStarter]: At program point L854-2(lines 849 857) the Hoare annotation is: false [2019-10-22 11:26:49,761 INFO L439 ceAbstractionStarter]: At program point L854-3(lines 849 857) the Hoare annotation is: false [2019-10-22 11:26:49,761 INFO L439 ceAbstractionStarter]: At program point L854-4(lines 849 857) the Hoare annotation is: false [2019-10-22 11:26:49,761 INFO L439 ceAbstractionStarter]: At program point L854-5(lines 849 857) the Hoare annotation is: false [2019-10-22 11:26:49,761 INFO L443 ceAbstractionStarter]: For program point L524(lines 524 541) no Hoare annotation was computed. [2019-10-22 11:26:49,761 INFO L443 ceAbstractionStarter]: For program point L524-1(lines 524 541) no Hoare annotation was computed. [2019-10-22 11:26:49,761 INFO L443 ceAbstractionStarter]: For program point L524-2(lines 524 541) no Hoare annotation was computed. [2019-10-22 11:26:49,761 INFO L443 ceAbstractionStarter]: For program point L524-3(lines 524 541) no Hoare annotation was computed. [2019-10-22 11:26:49,761 INFO L443 ceAbstractionStarter]: For program point L524-4(lines 524 541) no Hoare annotation was computed. [2019-10-22 11:26:49,761 INFO L443 ceAbstractionStarter]: For program point L524-5(lines 524 541) no Hoare annotation was computed. [2019-10-22 11:26:49,761 INFO L443 ceAbstractionStarter]: For program point L524-6(lines 524 541) no Hoare annotation was computed. [2019-10-22 11:26:49,761 INFO L443 ceAbstractionStarter]: For program point L524-7(lines 524 541) no Hoare annotation was computed. [2019-10-22 11:26:49,761 INFO L443 ceAbstractionStarter]: For program point L524-8(lines 524 541) no Hoare annotation was computed. [2019-10-22 11:26:49,761 INFO L443 ceAbstractionStarter]: For program point L524-9(lines 524 541) no Hoare annotation was computed. [2019-10-22 11:26:49,762 INFO L443 ceAbstractionStarter]: For program point L524-10(lines 524 541) no Hoare annotation was computed. [2019-10-22 11:26:49,762 INFO L443 ceAbstractionStarter]: For program point L524-11(lines 524 541) no Hoare annotation was computed. [2019-10-22 11:26:49,762 INFO L439 ceAbstractionStarter]: At program point L492(lines 491 510) 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 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32)))) (or (and (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) (and (and .cse0 .cse1) .cse2)) (and (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) .cse2 .cse1 .cse3 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv0 32)))) (and (and .cse0 .cse1 .cse3) .cse2))) [2019-10-22 11:26:49,762 INFO L443 ceAbstractionStarter]: For program point L492-1(lines 492 498) no Hoare annotation was computed. [2019-10-22 11:26:49,762 INFO L439 ceAbstractionStarter]: At program point L492-2(lines 491 510) 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 11:26:49,762 INFO L439 ceAbstractionStarter]: At program point L492-3(lines 491 510) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~7 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:26:49,762 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 11:26:49,763 INFO L443 ceAbstractionStarter]: For program point L528(lines 528 536) no Hoare annotation was computed. [2019-10-22 11:26:49,763 INFO L443 ceAbstractionStarter]: For program point L528-1(lines 528 536) no Hoare annotation was computed. [2019-10-22 11:26:49,763 INFO L443 ceAbstractionStarter]: For program point L528-2(lines 528 536) no Hoare annotation was computed. [2019-10-22 11:26:49,763 INFO L443 ceAbstractionStarter]: For program point L528-3(lines 528 536) no Hoare annotation was computed. [2019-10-22 11:26:49,763 INFO L443 ceAbstractionStarter]: For program point L528-4(lines 528 536) no Hoare annotation was computed. [2019-10-22 11:26:49,763 INFO L443 ceAbstractionStarter]: For program point L528-5(lines 528 536) no Hoare annotation was computed. [2019-10-22 11:26:49,763 INFO L443 ceAbstractionStarter]: For program point L528-6(lines 528 536) no Hoare annotation was computed. [2019-10-22 11:26:49,763 INFO L443 ceAbstractionStarter]: For program point L528-7(lines 528 536) no Hoare annotation was computed. [2019-10-22 11:26:49,763 INFO L443 ceAbstractionStarter]: For program point L528-8(lines 528 536) no Hoare annotation was computed. [2019-10-22 11:26:49,764 INFO L443 ceAbstractionStarter]: For program point L528-9(lines 528 536) no Hoare annotation was computed. [2019-10-22 11:26:49,764 INFO L443 ceAbstractionStarter]: For program point L528-10(lines 528 536) no Hoare annotation was computed. [2019-10-22 11:26:49,764 INFO L443 ceAbstractionStarter]: For program point L528-11(lines 528 536) no Hoare annotation was computed. [2019-10-22 11:26:49,764 INFO L443 ceAbstractionStarter]: For program point L430(lines 430 436) no Hoare annotation was computed. [2019-10-22 11:26:49,764 INFO L439 ceAbstractionStarter]: At program point L430-1(lines 430 436) the Hoare annotation is: (let ((.cse4 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse0 (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32))) (.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse3 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse5 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and .cse0 (and (and .cse1 .cse2) .cse3 .cse4)) (and (and .cse1 .cse2 .cse5) .cse3 .cse4) (and .cse0 (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) (and .cse3 .cse2) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv0 32)))) (and (and .cse1 .cse3 .cse2) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv4294967295 32)) (_ bv0 32)) .cse5 (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)))) [2019-10-22 11:26:49,764 INFO L439 ceAbstractionStarter]: At program point L629(lines 624 632) the Hoare annotation is: false [2019-10-22 11:26:49,764 INFO L439 ceAbstractionStarter]: At program point L629-1(lines 624 632) the Hoare annotation is: false [2019-10-22 11:26:49,764 INFO L439 ceAbstractionStarter]: At program point L629-2(lines 624 632) the Hoare annotation is: false [2019-10-22 11:26:49,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:26:49 BoogieIcfgContainer [2019-10-22 11:26:49,790 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:26:49,791 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:26:49,791 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:26:49,791 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:26:49,791 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:32" (3/4) ... [2019-10-22 11:26:49,794 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:26:49,810 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2019-10-22 11:26:49,811 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2019-10-22 11:26:49,812 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-10-22 11:26:49,813 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 11:26:49,813 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 11:26:49,814 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 11:26:49,840 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) || (((((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result)) || ((((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && methaneLevelCritical == 0bv32) [2019-10-22 11:26:49,840 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && methaneLevelCritical == 0bv32) || ((((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && methaneLevelCritical == 0bv32)) || (((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(tmp == 0bv32))) || (((((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) [2019-10-22 11:26:49,840 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 [2019-10-22 11:26:49,841 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) || (((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(0bv32 == \result)) && !(tmp == 0bv32))) || (((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) [2019-10-22 11:26:49,841 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) || ((((!(0bv32 == \result) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && !(tmp == 0bv32))) || (((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) [2019-10-22 11:26:49,841 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32)) || (((!(0bv32 == \result) && ~bvslt32(splverifierCounter, 4bv32) && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) [2019-10-22 11:26:49,841 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:26:49,842 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:26:49,842 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:26:49,842 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~bvadd64(waterLevel, 4294967295bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32) && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) || (((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) [2019-10-22 11:26:49,843 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:26:49,843 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:26:49,843 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(0bv32 == \result) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && !(tmp == 0bv32) [2019-10-22 11:26:49,844 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((1bv32 == \result && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 [2019-10-22 11:26:49,844 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(0bv32 == \result) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && !(tmp == 0bv32) [2019-10-22 11:26:49,844 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:26:49,845 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && \result == 0bv32) && tmp___0 == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 [2019-10-22 11:26:49,845 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1bv32 == \result && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && (0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) [2019-10-22 11:26:49,845 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:26:49,846 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && \result == 0bv32) && tmp___0 == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && (0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) [2019-10-22 11:26:49,846 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1bv32 == \result && 0bv32 == pumpRunning) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:26:49,846 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(0bv32 == \result) && \result == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) && tmp == 0bv32 [2019-10-22 11:26:49,847 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1bv32 == \result && !(0bv32 == \result)) && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) && tmp == 0bv32 [2019-10-22 11:26:49,847 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && \result == 0bv32) && tmp___0 == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:26:49,847 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((~bvadd64(tmp___0, 4294967295bv32) == 0bv32 && !(0bv32 == \result)) && \result == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) && tmp == 0bv32 [2019-10-22 11:26:49,848 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && !(0bv32 == \result)) && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && \result == 0bv32) && tmp___0 == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) && tmp == 0bv32 [2019-10-22 11:26:49,932 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ed8d6aeb-e30c-4688-af1f-0412d9762456/bin/utaipan/witness.graphml [2019-10-22 11:26:49,932 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:26:49,934 INFO L168 Benchmark]: Toolchain (without parser) took 19277.96 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 427.3 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -165.9 MB). Peak memory consumption was 261.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:49,934 INFO L168 Benchmark]: CDTParser took 0.45 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 11:26:49,934 INFO L168 Benchmark]: CACSL2BoogieTranslator took 549.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -186.3 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:49,935 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.07 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:49,935 INFO L168 Benchmark]: Boogie Preprocessor took 45.65 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 11:26:49,935 INFO L168 Benchmark]: RCFGBuilder took 1082.29 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: 89.2 MB). Peak memory consumption was 89.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:49,936 INFO L168 Benchmark]: TraceAbstraction took 17388.33 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 274.7 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -104.0 MB). Peak memory consumption was 408.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:49,936 INFO L168 Benchmark]: Witness Printer took 141.80 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.4 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:49,937 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 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 549.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -186.3 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 66.07 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.65 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 1082.29 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: 89.2 MB). Peak memory consumption was 89.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 17388.33 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 274.7 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -104.0 MB). Peak memory consumption was 408.9 MB. Max. memory is 11.5 GB. * Witness Printer took 141.80 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.4 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 750]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 750]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 750]: 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: 669]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 669]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 669]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 835]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 669]: Loop Invariant Derived loop invariant: (((((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && \result == 0bv32) && tmp___0 == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 835]: Loop Invariant Derived loop invariant: ((((((1bv32 == \result && !(0bv32 == \result)) && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) && tmp == 0bv32 - InvariantResult [Line: 835]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 624]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 669]: Loop Invariant Derived loop invariant: (((((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && \result == 0bv32) && tmp___0 == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && (0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 896]: Loop Invariant Derived loop invariant: (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 624]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 669]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 669]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 669]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 957]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 669]: Loop Invariant Derived loop invariant: (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && \result == 0bv32) && tmp___0 == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) || (((((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result)) || ((((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && methaneLevelCritical == 0bv32) - InvariantResult [Line: 669]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 669]: Loop Invariant Derived loop invariant: (((((((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && !(0bv32 == \result)) && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && \result == 0bv32) && tmp___0 == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) && tmp == 0bv32 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 624]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 669]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 826]: Loop Invariant Derived loop invariant: ((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 688]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 688]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 826]: Loop Invariant Derived loop invariant: ((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 688]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 688]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 940]: Loop Invariant Derived loop invariant: ((0bv32 == pumpRunning && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 688]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 440]: Loop Invariant Derived loop invariant: ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) || (((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(0bv32 == \result)) && !(tmp == 0bv32))) || (((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) - InvariantResult [Line: 826]: Loop Invariant Derived loop invariant: ((~bvadd64(waterLevel, 4294967295bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32) && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) || (((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) - InvariantResult [Line: 688]: Loop Invariant Derived loop invariant: ((((((((~bvadd64(tmp___0, 4294967295bv32) == 0bv32 && !(0bv32 == \result)) && \result == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) && tmp == 0bv32 - InvariantResult [Line: 849]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 794]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 849]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 499]: Loop Invariant Derived loop invariant: (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32)) || (((!(0bv32 == \result) && ~bvslt32(splverifierCounter, 4bv32) && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((0bv32 == pumpRunning && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 794]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 419]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 499]: Loop Invariant Derived loop invariant: (((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 849]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 499]: Loop Invariant Derived loop invariant: (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 849]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 967]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 835]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 835]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 430]: Loop Invariant Derived loop invariant: (((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && methaneLevelCritical == 0bv32) || ((((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && methaneLevelCritical == 0bv32)) || (((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(tmp == 0bv32))) || (((((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) - InvariantResult [Line: 835]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) || ((((!(0bv32 == \result) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && !(tmp == 0bv32))) || (((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) - InvariantResult [Line: 613]: Loop Invariant Derived loop invariant: (((!(0bv32 == \result) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && !(tmp == 0bv32) - InvariantResult [Line: 835]: Loop Invariant Derived loop invariant: ((((1bv32 == \result && 0bv32 == pumpRunning) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 849]: Loop Invariant Derived loop invariant: (((((!(0bv32 == \result) && \result == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) && tmp == 0bv32 - InvariantResult [Line: 613]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 849]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 613]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 794]: Loop Invariant Derived loop invariant: (((!(0bv32 == \result) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && !(tmp == 0bv32) - InvariantResult [Line: 835]: Loop Invariant Derived loop invariant: ((((1bv32 == \result && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && (0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) - InvariantResult [Line: 835]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 835]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 835]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 736]: Loop Invariant Derived loop invariant: ((0bv32 == pumpRunning && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 835]: Loop Invariant Derived loop invariant: ((1bv32 == \result && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 189 locations, 3 error locations. Result: SAFE, OverallTime: 17.3s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.4s, HoareTripleCheckerStatistics: 2526 SDtfs, 6457 SDslu, 6086 SDs, 0 SdLazy, 1155 SolverSat, 322 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1180 GetRequests, 1080 SyntacticMatches, 1 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=780occurred in iteration=11, 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, 12 MinimizatonAttempts, 4959 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 66 LocationsWithAnnotation, 66 PreInvPairs, 260 NumberOfFragments, 1113 HoareAnnotationTreeSize, 66 FomulaSimplifications, 1126656 FormulaSimplificationTreeSizeReduction, 1.6s HoareSimplificationTime, 66 FomulaSimplificationsInter, 185870 FormulaSimplificationTreeSizeReductionInter, 4.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 569 NumberOfCodeBlocks, 569 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1112 ConstructedInterpolants, 0 QuantifiedInterpolants, 127627 SizeOfPredicates, 44 NumberOfNonLiveVariables, 2771 ConjunctsInSsa, 66 ConjunctsInUnsatCore, 26 InterpolantComputations, 22 PerfectInterpolantSequences, 292/328 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...