./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/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 82fb1dfaeb04705f6833d1531288fda63f898d4b .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_326a9494-1800-420c-9be2-244d886ad3fb/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/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 82fb1dfaeb04705f6833d1531288fda63f898d4b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 11:23:23,878 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:23:23,880 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:23:23,889 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:23:23,890 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:23:23,891 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:23:23,892 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:23:23,894 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:23:23,895 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:23:23,898 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:23:23,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:23:23,903 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:23:23,908 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:23:23,909 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:23:23,910 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:23:23,911 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:23:23,912 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:23:23,912 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:23:23,916 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:23:23,917 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:23:23,918 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:23:23,919 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:23:23,920 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:23:23,921 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:23:23,926 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:23:23,927 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:23:23,927 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:23:23,928 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:23:23,929 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:23:23,930 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:23:23,931 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:23:23,932 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:23:23,933 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:23:23,933 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:23:23,934 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:23:23,936 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:23:23,936 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:23:23,937 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:23:23,937 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:23:23,937 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:23:23,938 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:23:23,940 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:23:23,953 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:23:23,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:23:23,954 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:23:23,954 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:23:23,954 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:23:23,954 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:23:23,954 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:23:23,954 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:23:23,954 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:23:23,955 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:23:23,955 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:23:23,955 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:23:23,955 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:23:23,956 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:23:23,956 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:23:23,956 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:23:23,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:23:23,956 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:23:23,956 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:23:23,956 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:23:23,956 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:23:23,957 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:23:23,957 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:23:23,957 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:23:23,957 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:23:23,957 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:23:23,958 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:23:23,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:23:23,958 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:23:23,958 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:23:23,958 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:23:23,959 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:23:23,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:23:23,959 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:23:23,959 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:23:23,959 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_326a9494-1800-420c-9be2-244d886ad3fb/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 -> 82fb1dfaeb04705f6833d1531288fda63f898d4b [2019-10-22 11:23:23,983 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:23:23,994 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:23:23,997 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:23:23,999 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:23:23,999 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:23:23,999 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c [2019-10-22 11:23:24,045 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/bin/utaipan/data/8d4bd125f/19d9a23b241d4e3dbf99657bf2984161/FLAGfdb9d5fe9 [2019-10-22 11:23:24,479 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:23:24,480 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c [2019-10-22 11:23:24,489 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/bin/utaipan/data/8d4bd125f/19d9a23b241d4e3dbf99657bf2984161/FLAGfdb9d5fe9 [2019-10-22 11:23:24,819 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/bin/utaipan/data/8d4bd125f/19d9a23b241d4e3dbf99657bf2984161 [2019-10-22 11:23:24,822 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:23:24,823 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:23:24,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:23:24,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:23:24,828 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:23:24,829 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:23:24" (1/1) ... [2019-10-22 11:23:24,832 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@626bbbf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:24, skipping insertion in model container [2019-10-22 11:23:24,833 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:23:24" (1/1) ... [2019-10-22 11:23:24,840 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:23:24,883 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:23:25,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:23:25,310 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:23:25,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:23:25,430 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:23:25,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:25 WrapperNode [2019-10-22 11:23:25,431 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:23:25,432 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:23:25,432 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:23:25,432 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:23:25,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:25" (1/1) ... [2019-10-22 11:23:25,459 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:25" (1/1) ... [2019-10-22 11:23:25,503 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:23:25,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:23:25,503 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:23:25,504 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:23:25,514 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:25" (1/1) ... [2019-10-22 11:23:25,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:25" (1/1) ... [2019-10-22 11:23:25,519 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:25" (1/1) ... [2019-10-22 11:23:25,519 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:25" (1/1) ... [2019-10-22 11:23:25,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:25" (1/1) ... [2019-10-22 11:23:25,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:25" (1/1) ... [2019-10-22 11:23:25,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:25" (1/1) ... [2019-10-22 11:23:25,545 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:23:25,546 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:23:25,546 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:23:25,546 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:23:25,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/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 11:23:25,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:23:25,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 11:23:25,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:23:25,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:23:26,366 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:23:26,366 INFO L284 CfgBuilder]: Removed 160 assume(true) statements. [2019-10-22 11:23:26,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:26 BoogieIcfgContainer [2019-10-22 11:23:26,367 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:23:26,368 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:23:26,368 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:23:26,372 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:23:26,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:23:24" (1/3) ... [2019-10-22 11:23:26,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8fcd9d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:23:26, skipping insertion in model container [2019-10-22 11:23:26,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:25" (2/3) ... [2019-10-22 11:23:26,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8fcd9d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:23:26, skipping insertion in model container [2019-10-22 11:23:26,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:26" (3/3) ... [2019-10-22 11:23:26,375 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product51.cil.c [2019-10-22 11:23:26,385 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:23:26,392 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:23:26,403 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:23:26,434 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:23:26,435 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:23:26,435 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:23:26,435 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:23:26,435 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:23:26,435 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:23:26,435 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:23:26,435 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:23:26,453 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states. [2019-10-22 11:23:26,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 11:23:26,461 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:26,462 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:26,464 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:26,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:26,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1844308238, now seen corresponding path program 1 times [2019-10-22 11:23:26,479 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:26,480 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809439458] [2019-10-22 11:23:26,480 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:26,480 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:26,480 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:26,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:26,737 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 11:23:26,737 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809439458] [2019-10-22 11:23:26,738 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:26,739 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:23:26,739 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523212965] [2019-10-22 11:23:26,743 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:23:26,744 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:26,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:23:26,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:23:26,761 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 2 states. [2019-10-22 11:23:26,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:26,793 INFO L93 Difference]: Finished difference Result 232 states and 353 transitions. [2019-10-22 11:23:26,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:23:26,795 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-10-22 11:23:26,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:26,805 INFO L225 Difference]: With dead ends: 232 [2019-10-22 11:23:26,805 INFO L226 Difference]: Without dead ends: 115 [2019-10-22 11:23:26,808 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 11:23:26,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-10-22 11:23:26,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2019-10-22 11:23:26,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-10-22 11:23:26,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 168 transitions. [2019-10-22 11:23:26,843 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 168 transitions. Word has length 16 [2019-10-22 11:23:26,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:26,844 INFO L462 AbstractCegarLoop]: Abstraction has 115 states and 168 transitions. [2019-10-22 11:23:26,844 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:23:26,844 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 168 transitions. [2019-10-22 11:23:26,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 11:23:26,845 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:26,845 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 11:23:26,846 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:26,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:26,846 INFO L82 PathProgramCache]: Analyzing trace with hash -323074868, now seen corresponding path program 1 times [2019-10-22 11:23:26,846 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:26,846 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743959934] [2019-10-22 11:23:26,847 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:26,847 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:26,847 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:26,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:26,958 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 11:23:26,958 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743959934] [2019-10-22 11:23:26,958 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:26,959 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:23:26,959 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234399817] [2019-10-22 11:23:26,960 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:23:26,960 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:26,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:23:26,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:26,961 INFO L87 Difference]: Start difference. First operand 115 states and 168 transitions. Second operand 3 states. [2019-10-22 11:23:26,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:26,979 INFO L93 Difference]: Finished difference Result 115 states and 168 transitions. [2019-10-22 11:23:26,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:23:26,984 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-10-22 11:23:26,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:26,985 INFO L225 Difference]: With dead ends: 115 [2019-10-22 11:23:26,985 INFO L226 Difference]: Without dead ends: 49 [2019-10-22 11:23:26,986 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 11:23:26,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-10-22 11:23:26,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2019-10-22 11:23:26,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-10-22 11:23:26,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2019-10-22 11:23:26,993 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 17 [2019-10-22 11:23:26,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:26,993 INFO L462 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2019-10-22 11:23:26,993 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:23:26,993 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2019-10-22 11:23:26,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 11:23:26,994 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:26,994 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:26,994 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:26,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:26,995 INFO L82 PathProgramCache]: Analyzing trace with hash -426243093, now seen corresponding path program 1 times [2019-10-22 11:23:26,995 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:26,995 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542452926] [2019-10-22 11:23:26,995 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:26,995 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:26,996 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:27,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:27,149 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 11:23:27,149 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542452926] [2019-10-22 11:23:27,149 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:27,149 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:23:27,150 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131385608] [2019-10-22 11:23:27,150 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:23:27,150 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:27,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:23:27,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:23:27,151 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand 6 states. [2019-10-22 11:23:27,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:27,275 INFO L93 Difference]: Finished difference Result 158 states and 235 transitions. [2019-10-22 11:23:27,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:23:27,276 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2019-10-22 11:23:27,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:27,277 INFO L225 Difference]: With dead ends: 158 [2019-10-22 11:23:27,277 INFO L226 Difference]: Without dead ends: 115 [2019-10-22 11:23:27,278 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 11:23:27,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-10-22 11:23:27,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 68. [2019-10-22 11:23:27,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-10-22 11:23:27,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 100 transitions. [2019-10-22 11:23:27,288 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 100 transitions. Word has length 22 [2019-10-22 11:23:27,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:27,288 INFO L462 AbstractCegarLoop]: Abstraction has 68 states and 100 transitions. [2019-10-22 11:23:27,288 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:23:27,289 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2019-10-22 11:23:27,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 11:23:27,289 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:27,290 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] [2019-10-22 11:23:27,290 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:27,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:27,290 INFO L82 PathProgramCache]: Analyzing trace with hash 844046893, now seen corresponding path program 1 times [2019-10-22 11:23:27,291 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:27,291 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980352103] [2019-10-22 11:23:27,291 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:27,291 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:27,291 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:27,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:27,377 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 11:23:27,377 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980352103] [2019-10-22 11:23:27,378 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:27,378 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:23:27,378 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193087081] [2019-10-22 11:23:27,378 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:23:27,379 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:27,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:23:27,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:27,379 INFO L87 Difference]: Start difference. First operand 68 states and 100 transitions. Second operand 3 states. [2019-10-22 11:23:27,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:27,448 INFO L93 Difference]: Finished difference Result 151 states and 224 transitions. [2019-10-22 11:23:27,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:23:27,449 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-10-22 11:23:27,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:27,450 INFO L225 Difference]: With dead ends: 151 [2019-10-22 11:23:27,450 INFO L226 Difference]: Without dead ends: 89 [2019-10-22 11:23:27,451 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 11:23:27,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2019-10-22 11:23:27,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 87. [2019-10-22 11:23:27,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-10-22 11:23:27,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 124 transitions. [2019-10-22 11:23:27,478 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 124 transitions. Word has length 24 [2019-10-22 11:23:27,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:27,478 INFO L462 AbstractCegarLoop]: Abstraction has 87 states and 124 transitions. [2019-10-22 11:23:27,478 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:23:27,478 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 124 transitions. [2019-10-22 11:23:27,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 11:23:27,479 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:27,479 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 11:23:27,480 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:27,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:27,480 INFO L82 PathProgramCache]: Analyzing trace with hash -1604149312, now seen corresponding path program 1 times [2019-10-22 11:23:27,481 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:27,481 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156483506] [2019-10-22 11:23:27,481 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:27,481 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:27,483 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:27,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:27,550 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 11:23:27,550 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156483506] [2019-10-22 11:23:27,551 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:27,551 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:23:27,551 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046313994] [2019-10-22 11:23:27,551 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:23:27,552 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:27,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:23:27,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:23:27,552 INFO L87 Difference]: Start difference. First operand 87 states and 124 transitions. Second operand 5 states. [2019-10-22 11:23:27,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:27,696 INFO L93 Difference]: Finished difference Result 307 states and 445 transitions. [2019-10-22 11:23:27,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:23:27,699 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-10-22 11:23:27,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:27,701 INFO L225 Difference]: With dead ends: 307 [2019-10-22 11:23:27,702 INFO L226 Difference]: Without dead ends: 226 [2019-10-22 11:23:27,702 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:23:27,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2019-10-22 11:23:27,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 146. [2019-10-22 11:23:27,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2019-10-22 11:23:27,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 203 transitions. [2019-10-22 11:23:27,743 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 203 transitions. Word has length 25 [2019-10-22 11:23:27,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:27,744 INFO L462 AbstractCegarLoop]: Abstraction has 146 states and 203 transitions. [2019-10-22 11:23:27,744 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:23:27,744 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 203 transitions. [2019-10-22 11:23:27,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 11:23:27,745 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:27,745 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 11:23:27,745 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:27,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:27,746 INFO L82 PathProgramCache]: Analyzing trace with hash 731508994, now seen corresponding path program 1 times [2019-10-22 11:23:27,746 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:27,746 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658642566] [2019-10-22 11:23:27,746 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:27,747 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:27,747 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:27,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:27,829 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 11:23:27,829 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658642566] [2019-10-22 11:23:27,830 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:27,830 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:23:27,830 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826915918] [2019-10-22 11:23:27,831 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:23:27,831 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:27,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:23:27,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:23:27,832 INFO L87 Difference]: Start difference. First operand 146 states and 203 transitions. Second operand 5 states. [2019-10-22 11:23:28,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:28,003 INFO L93 Difference]: Finished difference Result 303 states and 430 transitions. [2019-10-22 11:23:28,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:23:28,005 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-10-22 11:23:28,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:28,007 INFO L225 Difference]: With dead ends: 303 [2019-10-22 11:23:28,007 INFO L226 Difference]: Without dead ends: 301 [2019-10-22 11:23:28,008 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:23:28,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2019-10-22 11:23:28,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 146. [2019-10-22 11:23:28,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2019-10-22 11:23:28,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 201 transitions. [2019-10-22 11:23:28,039 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 201 transitions. Word has length 26 [2019-10-22 11:23:28,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:28,039 INFO L462 AbstractCegarLoop]: Abstraction has 146 states and 201 transitions. [2019-10-22 11:23:28,039 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:23:28,039 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 201 transitions. [2019-10-22 11:23:28,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 11:23:28,040 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:28,041 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 11:23:28,041 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:28,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:28,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1548133156, now seen corresponding path program 1 times [2019-10-22 11:23:28,043 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:28,044 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815892534] [2019-10-22 11:23:28,044 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:28,044 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:28,044 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:28,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:28,114 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 11:23:28,115 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815892534] [2019-10-22 11:23:28,115 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:28,115 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:23:28,115 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169893990] [2019-10-22 11:23:28,116 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:23:28,116 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:28,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:23:28,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:23:28,117 INFO L87 Difference]: Start difference. First operand 146 states and 201 transitions. Second operand 5 states. [2019-10-22 11:23:28,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:28,212 INFO L93 Difference]: Finished difference Result 442 states and 607 transitions. [2019-10-22 11:23:28,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:23:28,213 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-10-22 11:23:28,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:28,214 INFO L225 Difference]: With dead ends: 442 [2019-10-22 11:23:28,215 INFO L226 Difference]: Without dead ends: 302 [2019-10-22 11:23:28,216 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 11:23:28,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2019-10-22 11:23:28,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 155. [2019-10-22 11:23:28,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2019-10-22 11:23:28,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 210 transitions. [2019-10-22 11:23:28,242 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 210 transitions. Word has length 31 [2019-10-22 11:23:28,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:28,243 INFO L462 AbstractCegarLoop]: Abstraction has 155 states and 210 transitions. [2019-10-22 11:23:28,243 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:23:28,243 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 210 transitions. [2019-10-22 11:23:28,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 11:23:28,244 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:28,244 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 11:23:28,244 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:28,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:28,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1941160166, now seen corresponding path program 1 times [2019-10-22 11:23:28,245 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:28,245 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023453566] [2019-10-22 11:23:28,245 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:28,245 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:28,248 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:28,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:28,314 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023453566] [2019-10-22 11:23:28,314 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:28,314 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:23:28,314 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844309167] [2019-10-22 11:23:28,315 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:23:28,315 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:28,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:23:28,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:23:28,316 INFO L87 Difference]: Start difference. First operand 155 states and 210 transitions. Second operand 6 states. [2019-10-22 11:23:28,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:28,431 INFO L93 Difference]: Finished difference Result 407 states and 552 transitions. [2019-10-22 11:23:28,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:23:28,432 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-10-22 11:23:28,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:28,433 INFO L225 Difference]: With dead ends: 407 [2019-10-22 11:23:28,433 INFO L226 Difference]: Without dead ends: 258 [2019-10-22 11:23:28,434 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 11:23:28,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2019-10-22 11:23:28,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 139. [2019-10-22 11:23:28,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2019-10-22 11:23:28,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 185 transitions. [2019-10-22 11:23:28,456 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 185 transitions. Word has length 31 [2019-10-22 11:23:28,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:28,457 INFO L462 AbstractCegarLoop]: Abstraction has 139 states and 185 transitions. [2019-10-22 11:23:28,457 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:23:28,457 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 185 transitions. [2019-10-22 11:23:28,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 11:23:28,462 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:28,462 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 11:23:28,463 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:28,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:28,463 INFO L82 PathProgramCache]: Analyzing trace with hash -1682994728, now seen corresponding path program 1 times [2019-10-22 11:23:28,463 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:28,463 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000927469] [2019-10-22 11:23:28,464 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:28,464 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:28,464 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:28,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:28,527 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 11:23:28,527 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000927469] [2019-10-22 11:23:28,528 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:28,528 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:23:28,528 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189291986] [2019-10-22 11:23:28,528 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:23:28,528 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:28,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:23:28,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:23:28,529 INFO L87 Difference]: Start difference. First operand 139 states and 185 transitions. Second operand 5 states. [2019-10-22 11:23:28,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:28,686 INFO L93 Difference]: Finished difference Result 362 states and 496 transitions. [2019-10-22 11:23:28,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:23:28,687 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-10-22 11:23:28,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:28,688 INFO L225 Difference]: With dead ends: 362 [2019-10-22 11:23:28,688 INFO L226 Difference]: Without dead ends: 271 [2019-10-22 11:23:28,689 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:23:28,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2019-10-22 11:23:28,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 199. [2019-10-22 11:23:28,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2019-10-22 11:23:28,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 263 transitions. [2019-10-22 11:23:28,749 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 263 transitions. Word has length 31 [2019-10-22 11:23:28,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:28,750 INFO L462 AbstractCegarLoop]: Abstraction has 199 states and 263 transitions. [2019-10-22 11:23:28,750 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:23:28,750 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 263 transitions. [2019-10-22 11:23:28,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-22 11:23:28,751 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:28,751 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] [2019-10-22 11:23:28,751 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:28,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:28,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1312943258, now seen corresponding path program 1 times [2019-10-22 11:23:28,753 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:28,753 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229501014] [2019-10-22 11:23:28,753 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:28,753 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:28,758 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:28,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:28,829 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 11:23:28,829 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229501014] [2019-10-22 11:23:28,829 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532292191] [2019-10-22 11:23:28,830 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/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 11:23:28,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:28,946 INFO L256 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:23:28,952 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:23:28,977 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 11:23:28,982 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:23:29,010 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 11:23:29,012 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1941103552] [2019-10-22 11:23:29,018 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 53 [2019-10-22 11:23:29,058 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-10-22 11:23:29,059 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-22 11:23:29,443 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:23:29,444 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 11:23:29,449 INFO L168 Benchmark]: Toolchain (without parser) took 4625.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 210.8 MB). Free memory was 941.8 MB in the beginning and 1.1 GB in the end (delta: -170.4 MB). Peak memory consumption was 40.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:29,449 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:23:29,450 INFO L168 Benchmark]: CACSL2BoogieTranslator took 607.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -148.6 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:29,450 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:29,451 INFO L168 Benchmark]: Boogie Preprocessor took 42.21 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:29,451 INFO L168 Benchmark]: RCFGBuilder took 821.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 66.2 MB). Peak memory consumption was 66.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:29,452 INFO L168 Benchmark]: TraceAbstraction took 3079.10 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 98.0 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -103.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:23:29,456 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 607.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -148.6 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 71.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.21 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 821.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 66.2 MB). Peak memory consumption was 66.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3079.10 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 98.0 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -103.3 MB). There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: inappropriate decl info IMPLEMENTATION de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: inappropriate decl info IMPLEMENTATION: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 11:23:31,457 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:23:31,459 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:23:31,469 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:23:31,470 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:23:31,472 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:23:31,474 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:23:31,476 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:23:31,479 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:23:31,481 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:23:31,483 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:23:31,484 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:23:31,489 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:23:31,490 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:23:31,491 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:23:31,492 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:23:31,492 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:23:31,493 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:23:31,497 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:23:31,499 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:23:31,500 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:23:31,501 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:23:31,505 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:23:31,506 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:23:31,508 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:23:31,510 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:23:31,510 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:23:31,514 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:23:31,515 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:23:31,517 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:23:31,518 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:23:31,519 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:23:31,519 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:23:31,520 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:23:31,521 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:23:31,521 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:23:31,523 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:23:31,524 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:23:31,524 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:23:31,525 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:23:31,525 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:23:31,526 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:23:31,541 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:23:31,549 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:23:31,551 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:23:31,551 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:23:31,551 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:23:31,551 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:23:31,552 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:23:31,552 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:23:31,552 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:23:31,552 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:23:31,553 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:23:31,553 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:23:31,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:23:31,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:23:31,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:23:31,553 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:23:31,553 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:23:31,554 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:23:31,554 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:23:31,554 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:23:31,554 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:23:31,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:23:31,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:23:31,554 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:23:31,555 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:23:31,555 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:23:31,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:23:31,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:23:31,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:23:31,555 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:23:31,555 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:23:31,556 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:23:31,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:23:31,556 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:23:31,556 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_326a9494-1800-420c-9be2-244d886ad3fb/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 -> 82fb1dfaeb04705f6833d1531288fda63f898d4b [2019-10-22 11:23:31,594 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:23:31,605 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:23:31,612 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:23:31,613 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:23:31,613 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:23:31,614 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c [2019-10-22 11:23:31,666 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/bin/utaipan/data/c13e08657/231a2e8b901d4abea29ada0c16d0320f/FLAG9fdc63f7c [2019-10-22 11:23:32,135 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:23:32,136 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c [2019-10-22 11:23:32,152 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/bin/utaipan/data/c13e08657/231a2e8b901d4abea29ada0c16d0320f/FLAG9fdc63f7c [2019-10-22 11:23:32,168 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/bin/utaipan/data/c13e08657/231a2e8b901d4abea29ada0c16d0320f [2019-10-22 11:23:32,171 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:23:32,173 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:23:32,174 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:23:32,174 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:23:32,179 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:23:32,180 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:23:32" (1/1) ... [2019-10-22 11:23:32,183 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 11:23:32, skipping insertion in model container [2019-10-22 11:23:32,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:23:32" (1/1) ... [2019-10-22 11:23:32,193 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:23:32,247 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:23:32,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:23:32,647 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:23:32,732 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:23:32,760 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:23:32,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:32 WrapperNode [2019-10-22 11:23:32,760 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:23:32,761 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:23:32,761 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:23:32,761 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:23:32,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:32" (1/1) ... [2019-10-22 11:23:32,785 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:32" (1/1) ... [2019-10-22 11:23:32,822 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:23:32,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:23:32,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:23:32,823 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:23:32,832 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:32" (1/1) ... [2019-10-22 11:23:32,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:32" (1/1) ... [2019-10-22 11:23:32,838 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:32" (1/1) ... [2019-10-22 11:23:32,839 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:32" (1/1) ... [2019-10-22 11:23:32,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:32" (1/1) ... [2019-10-22 11:23:32,867 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:32" (1/1) ... [2019-10-22 11:23:32,875 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:32" (1/1) ... [2019-10-22 11:23:32,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:23:32,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:23:32,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:23:32,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:23:32,880 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/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 11:23:32,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:23:32,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-10-22 11:23:32,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:23:32,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:23:33,801 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:23:33,801 INFO L284 CfgBuilder]: Removed 160 assume(true) statements. [2019-10-22 11:23:33,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:33 BoogieIcfgContainer [2019-10-22 11:23:33,803 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:23:33,804 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:23:33,804 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:23:33,814 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:23:33,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:23:32" (1/3) ... [2019-10-22 11:23:33,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1efff81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:23:33, skipping insertion in model container [2019-10-22 11:23:33,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:32" (2/3) ... [2019-10-22 11:23:33,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1efff81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:23:33, skipping insertion in model container [2019-10-22 11:23:33,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:33" (3/3) ... [2019-10-22 11:23:33,818 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product51.cil.c [2019-10-22 11:23:33,826 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:23:33,833 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:23:33,843 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:23:33,871 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:23:33,871 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:23:33,871 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:23:33,871 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:23:33,872 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:23:33,872 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:23:33,872 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:23:33,872 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:23:33,887 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states. [2019-10-22 11:23:33,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 11:23:33,896 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:33,897 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:33,899 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:33,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:33,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1844308238, now seen corresponding path program 1 times [2019-10-22 11:23:33,913 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:23:33,913 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1602338174] [2019-10-22 11:23:33,914 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/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 11:23:34,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:34,115 INFO L256 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-22 11:23:34,120 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:23:34,134 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 11:23:34,135 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:23:34,139 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 11:23:34,140 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1602338174] [2019-10-22 11:23:34,141 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:34,141 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 11:23:34,141 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317577930] [2019-10-22 11:23:34,145 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:23:34,146 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:23:34,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:23:34,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:23:34,156 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 2 states. [2019-10-22 11:23:34,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:34,185 INFO L93 Difference]: Finished difference Result 232 states and 353 transitions. [2019-10-22 11:23:34,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:23:34,186 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-10-22 11:23:34,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:34,197 INFO L225 Difference]: With dead ends: 232 [2019-10-22 11:23:34,197 INFO L226 Difference]: Without dead ends: 115 [2019-10-22 11:23:34,200 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 11:23:34,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-10-22 11:23:34,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2019-10-22 11:23:34,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-10-22 11:23:34,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 168 transitions. [2019-10-22 11:23:34,239 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 168 transitions. Word has length 16 [2019-10-22 11:23:34,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:34,240 INFO L462 AbstractCegarLoop]: Abstraction has 115 states and 168 transitions. [2019-10-22 11:23:34,240 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:23:34,240 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 168 transitions. [2019-10-22 11:23:34,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 11:23:34,241 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:34,242 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 11:23:34,442 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:23:34,443 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:34,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:34,443 INFO L82 PathProgramCache]: Analyzing trace with hash -323074868, now seen corresponding path program 1 times [2019-10-22 11:23:34,444 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:23:34,444 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1085368611] [2019-10-22 11:23:34,444 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/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 11:23:34,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:34,598 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:23:34,599 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:23:34,626 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 11:23:34,628 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:23:34,637 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 11:23:34,637 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1085368611] [2019-10-22 11:23:34,638 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:34,638 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-10-22 11:23:34,638 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837587722] [2019-10-22 11:23:34,639 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:23:34,640 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:23:34,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:23:34,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:23:34,640 INFO L87 Difference]: Start difference. First operand 115 states and 168 transitions. Second operand 4 states. [2019-10-22 11:23:34,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:34,758 INFO L93 Difference]: Finished difference Result 382 states and 561 transitions. [2019-10-22 11:23:34,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:23:34,758 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-10-22 11:23:34,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:34,760 INFO L225 Difference]: With dead ends: 382 [2019-10-22 11:23:34,761 INFO L226 Difference]: Without dead ends: 273 [2019-10-22 11:23:34,762 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 11:23:34,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2019-10-22 11:23:34,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 156. [2019-10-22 11:23:34,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2019-10-22 11:23:34,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 228 transitions. [2019-10-22 11:23:34,784 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 228 transitions. Word has length 17 [2019-10-22 11:23:34,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:34,785 INFO L462 AbstractCegarLoop]: Abstraction has 156 states and 228 transitions. [2019-10-22 11:23:34,785 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:23:34,785 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 228 transitions. [2019-10-22 11:23:34,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:23:34,786 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:34,786 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:34,986 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:23:34,987 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:34,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:34,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1204467630, now seen corresponding path program 1 times [2019-10-22 11:23:34,988 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:23:34,988 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1462578267] [2019-10-22 11:23:34,988 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/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 11:23:35,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:35,151 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:23:35,152 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:23:35,162 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 11:23:35,163 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:23:35,165 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 11:23:35,165 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1462578267] [2019-10-22 11:23:35,165 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:35,167 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-22 11:23:35,167 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513446289] [2019-10-22 11:23:35,168 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:23:35,168 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:23:35,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:23:35,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:35,168 INFO L87 Difference]: Start difference. First operand 156 states and 228 transitions. Second operand 3 states. [2019-10-22 11:23:35,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:35,336 INFO L93 Difference]: Finished difference Result 351 states and 509 transitions. [2019-10-22 11:23:35,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:23:35,336 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-10-22 11:23:35,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:35,338 INFO L225 Difference]: With dead ends: 351 [2019-10-22 11:23:35,338 INFO L226 Difference]: Without dead ends: 201 [2019-10-22 11:23:35,339 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 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 11:23:35,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2019-10-22 11:23:35,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 195. [2019-10-22 11:23:35,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2019-10-22 11:23:35,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 271 transitions. [2019-10-22 11:23:35,377 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 271 transitions. Word has length 19 [2019-10-22 11:23:35,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:35,377 INFO L462 AbstractCegarLoop]: Abstraction has 195 states and 271 transitions. [2019-10-22 11:23:35,377 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:23:35,378 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 271 transitions. [2019-10-22 11:23:35,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 11:23:35,378 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:35,379 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:35,580 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:23:35,580 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:35,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:35,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1604149312, now seen corresponding path program 1 times [2019-10-22 11:23:35,581 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:23:35,581 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1605279096] [2019-10-22 11:23:35,581 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/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 11:23:35,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:35,730 INFO L256 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 11:23:35,731 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:23:35,770 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 11:23:35,770 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:23:35,819 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 11:23:35,820 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1605279096] [2019-10-22 11:23:35,820 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:35,820 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2019-10-22 11:23:35,820 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575046744] [2019-10-22 11:23:35,821 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 11:23:35,821 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:23:35,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 11:23:35,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:23:35,822 INFO L87 Difference]: Start difference. First operand 195 states and 271 transitions. Second operand 9 states. [2019-10-22 11:23:36,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:36,707 INFO L93 Difference]: Finished difference Result 1255 states and 1779 transitions. [2019-10-22 11:23:36,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-22 11:23:36,708 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2019-10-22 11:23:36,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:36,712 INFO L225 Difference]: With dead ends: 1255 [2019-10-22 11:23:36,712 INFO L226 Difference]: Without dead ends: 1066 [2019-10-22 11:23:36,713 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2019-10-22 11:23:36,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2019-10-22 11:23:36,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 480. [2019-10-22 11:23:36,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 480 states. [2019-10-22 11:23:36,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 645 transitions. [2019-10-22 11:23:36,786 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 645 transitions. Word has length 25 [2019-10-22 11:23:36,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:36,789 INFO L462 AbstractCegarLoop]: Abstraction has 480 states and 645 transitions. [2019-10-22 11:23:36,789 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 11:23:36,789 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 645 transitions. [2019-10-22 11:23:36,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-10-22 11:23:36,792 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:36,792 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:36,992 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:23:36,993 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:36,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:36,993 INFO L82 PathProgramCache]: Analyzing trace with hash -318508511, now seen corresponding path program 1 times [2019-10-22 11:23:36,994 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:23:36,994 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1385294716] [2019-10-22 11:23:36,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/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 11:23:37,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:37,118 INFO L256 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:23:37,120 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:23:37,140 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-22 11:23:37,141 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:23:37,144 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-22 11:23:37,145 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1385294716] [2019-10-22 11:23:37,145 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:37,145 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:23:37,145 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001833470] [2019-10-22 11:23:37,146 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:23:37,146 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:23:37,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:23:37,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:23:37,147 INFO L87 Difference]: Start difference. First operand 480 states and 645 transitions. Second operand 5 states. [2019-10-22 11:23:37,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:37,529 INFO L93 Difference]: Finished difference Result 1102 states and 1505 transitions. [2019-10-22 11:23:37,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:23:37,529 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 40 [2019-10-22 11:23:37,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:37,534 INFO L225 Difference]: With dead ends: 1102 [2019-10-22 11:23:37,534 INFO L226 Difference]: Without dead ends: 1096 [2019-10-22 11:23:37,535 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 78 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 11:23:37,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2019-10-22 11:23:37,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 480. [2019-10-22 11:23:37,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 480 states. [2019-10-22 11:23:37,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 639 transitions. [2019-10-22 11:23:37,590 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 639 transitions. Word has length 40 [2019-10-22 11:23:37,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:37,593 INFO L462 AbstractCegarLoop]: Abstraction has 480 states and 639 transitions. [2019-10-22 11:23:37,593 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:23:37,593 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 639 transitions. [2019-10-22 11:23:37,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-22 11:23:37,596 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:37,596 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, 1, 1] [2019-10-22 11:23:37,797 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:23:37,797 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:37,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:37,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1878104435, now seen corresponding path program 1 times [2019-10-22 11:23:37,798 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:23:37,798 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1674823301] [2019-10-22 11:23:37,798 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/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 11:23:37,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:37,941 INFO L256 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:23:37,942 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:23:37,962 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 11:23:37,962 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:23:37,967 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 11:23:37,968 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1674823301] [2019-10-22 11:23:37,969 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:37,969 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:23:37,969 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241997600] [2019-10-22 11:23:37,969 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:23:37,971 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:23:37,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:23:37,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:23:37,978 INFO L87 Difference]: Start difference. First operand 480 states and 639 transitions. Second operand 5 states. [2019-10-22 11:23:38,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:38,183 INFO L93 Difference]: Finished difference Result 1427 states and 1866 transitions. [2019-10-22 11:23:38,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:23:38,185 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2019-10-22 11:23:38,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:38,188 INFO L225 Difference]: With dead ends: 1427 [2019-10-22 11:23:38,189 INFO L226 Difference]: Without dead ends: 953 [2019-10-22 11:23:38,190 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 81 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 11:23:38,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 953 states. [2019-10-22 11:23:38,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 953 to 525. [2019-10-22 11:23:38,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 525 states. [2019-10-22 11:23:38,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 684 transitions. [2019-10-22 11:23:38,234 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 684 transitions. Word has length 42 [2019-10-22 11:23:38,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:38,235 INFO L462 AbstractCegarLoop]: Abstraction has 525 states and 684 transitions. [2019-10-22 11:23:38,236 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:23:38,236 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 684 transitions. [2019-10-22 11:23:38,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-22 11:23:38,239 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:38,239 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, 1, 1] [2019-10-22 11:23:38,439 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:23:38,440 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:38,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:38,440 INFO L82 PathProgramCache]: Analyzing trace with hash -493634827, now seen corresponding path program 1 times [2019-10-22 11:23:38,440 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:23:38,441 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [400673843] [2019-10-22 11:23:38,441 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/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 11:23:38,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:38,566 INFO L256 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:23:38,567 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:23:38,575 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 11:23:38,575 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:23:38,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:38,596 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [400673843] [2019-10-22 11:23:38,596 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:38,596 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-10-22 11:23:38,597 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356527727] [2019-10-22 11:23:38,597 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:23:38,597 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:23:38,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:23:38,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:23:38,598 INFO L87 Difference]: Start difference. First operand 525 states and 684 transitions. Second operand 6 states. [2019-10-22 11:23:38,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:38,787 INFO L93 Difference]: Finished difference Result 1349 states and 1740 transitions. [2019-10-22 11:23:38,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:23:38,788 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2019-10-22 11:23:38,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:38,791 INFO L225 Difference]: With dead ends: 1349 [2019-10-22 11:23:38,791 INFO L226 Difference]: Without dead ends: 759 [2019-10-22 11:23:38,792 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 79 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 11:23:38,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2019-10-22 11:23:38,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 429. [2019-10-22 11:23:38,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2019-10-22 11:23:38,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 556 transitions. [2019-10-22 11:23:38,843 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 556 transitions. Word has length 42 [2019-10-22 11:23:38,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:38,844 INFO L462 AbstractCegarLoop]: Abstraction has 429 states and 556 transitions. [2019-10-22 11:23:38,844 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:23:38,844 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 556 transitions. [2019-10-22 11:23:38,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-22 11:23:38,845 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:38,845 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, 1, 1] [2019-10-22 11:23:39,046 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:23:39,048 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:39,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:39,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1421759523, now seen corresponding path program 1 times [2019-10-22 11:23:39,049 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:23:39,049 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [429387558] [2019-10-22 11:23:39,049 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/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 11:23:39,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:39,202 INFO L256 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:23:39,204 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:23:39,217 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 11:23:39,218 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:23:39,248 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 11:23:39,248 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [429387558] [2019-10-22 11:23:39,249 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:39,249 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-22 11:23:39,249 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249135919] [2019-10-22 11:23:39,249 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:23:39,249 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:23:39,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:23:39,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:39,250 INFO L87 Difference]: Start difference. First operand 429 states and 556 transitions. Second operand 3 states. [2019-10-22 11:23:39,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:39,276 INFO L93 Difference]: Finished difference Result 429 states and 556 transitions. [2019-10-22 11:23:39,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:23:39,277 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-10-22 11:23:39,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:39,281 INFO L225 Difference]: With dead ends: 429 [2019-10-22 11:23:39,282 INFO L226 Difference]: Without dead ends: 209 [2019-10-22 11:23:39,282 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 91 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 11:23:39,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2019-10-22 11:23:39,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2019-10-22 11:23:39,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2019-10-22 11:23:39,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 280 transitions. [2019-10-22 11:23:39,303 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 280 transitions. Word has length 47 [2019-10-22 11:23:39,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:39,303 INFO L462 AbstractCegarLoop]: Abstraction has 209 states and 280 transitions. [2019-10-22 11:23:39,303 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:23:39,303 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 280 transitions. [2019-10-22 11:23:39,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-22 11:23:39,305 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:39,305 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] [2019-10-22 11:23:39,505 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:23:39,506 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:39,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:39,506 INFO L82 PathProgramCache]: Analyzing trace with hash -1312943258, now seen corresponding path program 1 times [2019-10-22 11:23:39,506 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:23:39,507 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1392388245] [2019-10-22 11:23:39,507 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/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 11:23:39,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:39,654 INFO L256 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-22 11:23:39,656 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:23:39,700 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 11:23:39,700 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:23:39,744 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 11:23:39,744 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1392388245] [2019-10-22 11:23:39,745 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745231442] [2019-10-22 11:23:39,745 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/bin/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:23:39,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:39,851 INFO L256 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-22 11:23:39,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:23:39,868 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 11:23:39,868 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:23:39,877 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 11:23:39,878 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-22 11:23:39,879 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5] total 9 [2019-10-22 11:23:39,879 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029460830] [2019-10-22 11:23:39,879 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-22 11:23:39,879 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:23:39,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-22 11:23:39,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-10-22 11:23:39,880 INFO L87 Difference]: Start difference. First operand 209 states and 280 transitions. Second operand 10 states. [2019-10-22 11:23:40,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:40,743 INFO L93 Difference]: Finished difference Result 1311 states and 1806 transitions. [2019-10-22 11:23:40,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-22 11:23:40,743 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 52 [2019-10-22 11:23:40,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:40,748 INFO L225 Difference]: With dead ends: 1311 [2019-10-22 11:23:40,749 INFO L226 Difference]: Without dead ends: 1150 [2019-10-22 11:23:40,750 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 194 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2019-10-22 11:23:40,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1150 states. [2019-10-22 11:23:40,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1150 to 351. [2019-10-22 11:23:40,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2019-10-22 11:23:40,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 478 transitions. [2019-10-22 11:23:40,787 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 478 transitions. Word has length 52 [2019-10-22 11:23:40,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:40,788 INFO L462 AbstractCegarLoop]: Abstraction has 351 states and 478 transitions. [2019-10-22 11:23:40,788 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-22 11:23:40,788 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 478 transitions. [2019-10-22 11:23:40,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-10-22 11:23:40,789 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:40,789 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:41,190 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:23:41,190 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:41,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:41,190 INFO L82 PathProgramCache]: Analyzing trace with hash -1082347880, now seen corresponding path program 2 times [2019-10-22 11:23:41,191 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:23:41,191 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1109684894] [2019-10-22 11:23:41,191 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/bin/utaipan/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:23:43,227 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-22 11:23:43,227 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-22 11:23:43,262 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-22 11:23:43,264 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:23:43,314 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:23:43,350 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 11:23:43,350 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:23:43,379 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 11:23:43,379 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1109684894] [2019-10-22 11:23:43,379 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:43,379 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2019-10-22 11:23:43,380 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523988679] [2019-10-22 11:23:43,380 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 11:23:43,380 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:23:43,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 11:23:43,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:23:43,380 INFO L87 Difference]: Start difference. First operand 351 states and 478 transitions. Second operand 9 states. [2019-10-22 11:23:44,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:44,344 INFO L93 Difference]: Finished difference Result 1523 states and 2086 transitions. [2019-10-22 11:23:44,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-22 11:23:44,344 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 73 [2019-10-22 11:23:44,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:44,348 INFO L225 Difference]: With dead ends: 1523 [2019-10-22 11:23:44,348 INFO L226 Difference]: Without dead ends: 1122 [2019-10-22 11:23:44,349 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=148, Invalid=314, Unknown=0, NotChecked=0, Total=462 [2019-10-22 11:23:44,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2019-10-22 11:23:44,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 430. [2019-10-22 11:23:44,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2019-10-22 11:23:44,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 576 transitions. [2019-10-22 11:23:44,404 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 576 transitions. Word has length 73 [2019-10-22 11:23:44,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:44,405 INFO L462 AbstractCegarLoop]: Abstraction has 430 states and 576 transitions. [2019-10-22 11:23:44,405 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 11:23:44,405 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 576 transitions. [2019-10-22 11:23:44,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-10-22 11:23:44,406 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:44,406 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, 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 11:23:44,606 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:23:44,606 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:44,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:44,607 INFO L82 PathProgramCache]: Analyzing trace with hash -807588266, now seen corresponding path program 1 times [2019-10-22 11:23:44,607 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:23:44,607 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1188005623] [2019-10-22 11:23:44,607 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/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 11:23:44,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:44,733 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:23:44,734 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:23:44,749 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-22 11:23:44,749 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:23:44,772 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-22 11:23:44,772 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1188005623] [2019-10-22 11:23:44,772 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:44,772 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-10-22 11:23:44,773 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436264026] [2019-10-22 11:23:44,773 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:23:44,773 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:23:44,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:23:44,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:23:44,774 INFO L87 Difference]: Start difference. First operand 430 states and 576 transitions. Second operand 8 states. [2019-10-22 11:23:44,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:44,848 INFO L93 Difference]: Finished difference Result 707 states and 939 transitions. [2019-10-22 11:23:44,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:23:44,849 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 73 [2019-10-22 11:23:44,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:44,849 INFO L225 Difference]: With dead ends: 707 [2019-10-22 11:23:44,849 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:23:44,850 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 140 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 11:23:44,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:23:44,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:23:44,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:23:44,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:23:44,851 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 73 [2019-10-22 11:23:44,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:44,851 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:23:44,851 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:23:44,851 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:23:44,851 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:23:45,052 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:23:45,055 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:23:45,337 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 99 [2019-10-22 11:23:45,625 WARN L191 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 131 [2019-10-22 11:23:45,998 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 126 [2019-10-22 11:23:46,271 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 234 DAG size of output: 131 [2019-10-22 11:23:46,664 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 126 [2019-10-22 11:23:46,822 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 128 [2019-10-22 11:23:47,313 WARN L191 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 34 [2019-10-22 11:23:47,909 WARN L191 SmtUtils]: Spent 590.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 33 [2019-10-22 11:23:48,307 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 25 [2019-10-22 11:23:48,806 WARN L191 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 36 [2019-10-22 11:23:49,539 WARN L191 SmtUtils]: Spent 578.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 34 [2019-10-22 11:23:49,869 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 25 [2019-10-22 11:23:50,121 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 38 [2019-10-22 11:23:50,306 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 31 [2019-10-22 11:23:50,839 WARN L191 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 36 [2019-10-22 11:23:51,300 WARN L191 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 33 [2019-10-22 11:23:51,301 INFO L439 ceAbstractionStarter]: At program point L333(lines 333 339) the Hoare annotation is: (let ((.cse3 (not (= ~systemActive~0 (_ bv0 32)))) (.cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse4 (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32))) (.cse1 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse0 (= (_ bv0 32) ~pumpRunning~0))) (or (and (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1 (_ bv4294967295 32)) (_ bv0 32)) .cse0 .cse1 .cse2 (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) (and (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1 (_ bv0 32))) (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) .cse0 .cse3 .cse1 .cse2) (and .cse4 .cse1 .cse3) (and .cse0 .cse1 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) .cse2) (and .cse4 .cse1 .cse0))) [2019-10-22 11:23:51,301 INFO L439 ceAbstractionStarter]: At program point L333-1(lines 333 339) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|)) (.cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv4294967295 32)) (_ bv0 32)) .cse0 (not (= ~systemActive~0 (_ bv0 32))) (= (_ bv0 32) ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~2) .cse1 .cse2) (and (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1 (_ bv4294967295 32)) (_ bv0 32)) .cse0 .cse1 .cse2 (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)))) [2019-10-22 11:23:51,302 INFO L439 ceAbstractionStarter]: At program point L333-2(lines 333 339) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:23:51,302 INFO L439 ceAbstractionStarter]: At program point L103(lines 99 105) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:23:51,302 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 602) no Hoare annotation was computed. [2019-10-22 11:23:51,302 INFO L439 ceAbstractionStarter]: At program point L303(lines 1 971) 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 11:23:51,302 INFO L446 ceAbstractionStarter]: At program point L139(lines 120 142) the Hoare annotation is: true [2019-10-22 11:23:51,302 INFO L443 ceAbstractionStarter]: For program point L602(line 602) no Hoare annotation was computed. [2019-10-22 11:23:51,302 INFO L443 ceAbstractionStarter]: For program point L602-1(line 602) no Hoare annotation was computed. [2019-10-22 11:23:51,302 INFO L443 ceAbstractionStarter]: For program point L602-2(line 602) no Hoare annotation was computed. [2019-10-22 11:23:51,302 INFO L439 ceAbstractionStarter]: At program point L437(lines 432 440) the Hoare annotation is: false [2019-10-22 11:23:51,302 INFO L439 ceAbstractionStarter]: At program point L437-1(lines 432 440) the Hoare annotation is: false [2019-10-22 11:23:51,302 INFO L439 ceAbstractionStarter]: At program point L437-2(lines 432 440) the Hoare annotation is: false [2019-10-22 11:23:51,303 INFO L443 ceAbstractionStarter]: For program point L571(lines 571 584) no Hoare annotation was computed. [2019-10-22 11:23:51,303 INFO L443 ceAbstractionStarter]: For program point L505(lines 505 509) no Hoare annotation was computed. [2019-10-22 11:23:51,303 INFO L443 ceAbstractionStarter]: For program point L505-2(lines 505 509) no Hoare annotation was computed. [2019-10-22 11:23:51,303 INFO L443 ceAbstractionStarter]: For program point L505-3(lines 505 509) no Hoare annotation was computed. [2019-10-22 11:23:51,303 INFO L443 ceAbstractionStarter]: For program point L505-5(lines 505 509) no Hoare annotation was computed. [2019-10-22 11:23:51,303 INFO L443 ceAbstractionStarter]: For program point L505-6(lines 505 509) no Hoare annotation was computed. [2019-10-22 11:23:51,303 INFO L443 ceAbstractionStarter]: For program point L505-8(lines 505 509) no Hoare annotation was computed. [2019-10-22 11:23:51,303 INFO L443 ceAbstractionStarter]: For program point L208(lines 208 212) no Hoare annotation was computed. [2019-10-22 11:23:51,303 INFO L439 ceAbstractionStarter]: At program point L276(lines 271 279) the Hoare annotation is: (and (not (= ~systemActive~0 (_ bv0 32))) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1 (_ bv0 32))) (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:23:51,303 INFO L439 ceAbstractionStarter]: At program point L276-1(lines 271 279) the Hoare annotation is: false [2019-10-22 11:23:51,303 INFO L439 ceAbstractionStarter]: At program point L276-2(lines 271 279) the Hoare annotation is: false [2019-10-22 11:23:51,303 INFO L443 ceAbstractionStarter]: For program point L542(lines 541 588) no Hoare annotation was computed. [2019-10-22 11:23:51,303 INFO L439 ceAbstractionStarter]: At program point L311(lines 306 314) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:23:51,304 INFO L443 ceAbstractionStarter]: For program point L543(lines 543 547) no Hoare annotation was computed. [2019-10-22 11:23:51,304 INFO L443 ceAbstractionStarter]: For program point L577(lines 577 583) no Hoare annotation was computed. [2019-10-22 11:23:51,304 INFO L439 ceAbstractionStarter]: At program point L577-1(lines 326 332) the Hoare annotation is: (let ((.cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse3 (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32))) (.cse1 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32)))) (or (and (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1 (_ bv4294967295 32)) (_ bv0 32)) .cse0 .cse1 .cse2 (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) (and .cse0 .cse1 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) .cse2) (and .cse3 .cse1 .cse0) (and .cse3 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1 (_ bv0 32))) (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) .cse1 (not (= ~systemActive~0 (_ bv0 32)))))) [2019-10-22 11:23:51,304 INFO L439 ceAbstractionStarter]: At program point L511(lines 496 514) the Hoare annotation is: (and (= (bvadd ULTIMATE.start_isLowWaterLevel_~tmp___0~2 (_ bv4294967295 32)) (_ bv0 32)) (not (= ~systemActive~0 (_ bv0 32))) (= ULTIMATE.start_isLowWaterLevel_~tmp~5 (_ bv0 32)) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1 (_ 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 ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:23:51,304 INFO L439 ceAbstractionStarter]: At program point L511-1(lines 496 514) the Hoare annotation is: false [2019-10-22 11:23:51,304 INFO L439 ceAbstractionStarter]: At program point L511-2(lines 496 514) the Hoare annotation is: false [2019-10-22 11:23:51,304 INFO L443 ceAbstractionStarter]: For program point L184(lines 184 188) no Hoare annotation was computed. [2019-10-22 11:23:51,304 INFO L443 ceAbstractionStarter]: For program point L184-3(lines 184 188) no Hoare annotation was computed. [2019-10-22 11:23:51,304 INFO L443 ceAbstractionStarter]: For program point L184-6(lines 184 188) no Hoare annotation was computed. [2019-10-22 11:23:51,304 INFO L439 ceAbstractionStarter]: At program point L52-2(lines 52 66) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:23:51,304 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:23:51,304 INFO L443 ceAbstractionStarter]: For program point L53(line 53) no Hoare annotation was computed. [2019-10-22 11:23:51,304 INFO L443 ceAbstractionStarter]: For program point L384(lines 384 401) no Hoare annotation was computed. [2019-10-22 11:23:51,305 INFO L443 ceAbstractionStarter]: For program point L384-1(lines 384 401) no Hoare annotation was computed. [2019-10-22 11:23:51,305 INFO L443 ceAbstractionStarter]: For program point L384-2(lines 384 401) no Hoare annotation was computed. [2019-10-22 11:23:51,305 INFO L439 ceAbstractionStarter]: At program point L253(lines 248 256) the Hoare annotation is: (let ((.cse0 (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|))) (.cse2 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32)))) (or (and .cse0 .cse1 .cse2 (not (= ~systemActive~0 (_ bv0 32)))) (and .cse3 .cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) (and .cse0 .cse3 .cse1 .cse2))) [2019-10-22 11:23:51,305 INFO L439 ceAbstractionStarter]: At program point L253-1(lines 248 256) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:23:51,305 INFO L439 ceAbstractionStarter]: At program point L253-2(lines 248 256) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:23:51,305 INFO L443 ceAbstractionStarter]: For program point L551(lines 551 557) no Hoare annotation was computed. [2019-10-22 11:23:51,305 INFO L439 ceAbstractionStarter]: At program point L551-1(lines 551 557) the Hoare annotation is: (let ((.cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse4 (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32))) (.cse5 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1 (_ bv0 32)))) (.cse6 (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|))) (.cse1 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse3 (not (= ~systemActive~0 (_ bv0 32))))) (or (and (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1 (_ bv4294967295 32)) (_ bv0 32)) .cse0 .cse1 .cse2 (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) (and .cse1 .cse2 (and .cse0 .cse3 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|))) (and .cse4 .cse5 .cse6 .cse0 .cse1) (and (and .cse0 .cse3) .cse4 .cse1) (and .cse4 .cse5 .cse6 .cse1 .cse3))) [2019-10-22 11:23:51,305 INFO L443 ceAbstractionStarter]: For program point L155(lines 155 168) no Hoare annotation was computed. [2019-10-22 11:23:51,306 INFO L439 ceAbstractionStarter]: At program point L155-1(lines 1 971) the Hoare annotation is: (let ((.cse0 (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32))) (.cse1 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1 (_ bv0 32)))) (.cse2 (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|))) (.cse5 (not (= ~systemActive~0 (_ bv0 32)))) (.cse3 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse6 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse3 .cse5) (and .cse3 .cse6 (and .cse4 .cse5 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|))) (and (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1 (_ bv4294967295 32)) (_ bv0 32)) .cse3 .cse6 .cse4 (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)))) [2019-10-22 11:23:51,306 INFO L443 ceAbstractionStarter]: For program point L155-2(lines 155 168) no Hoare annotation was computed. [2019-10-22 11:23:51,306 INFO L439 ceAbstractionStarter]: At program point L155-3(lines 1 971) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:23:51,307 INFO L443 ceAbstractionStarter]: For program point L56(lines 56 60) no Hoare annotation was computed. [2019-10-22 11:23:51,307 INFO L443 ceAbstractionStarter]: For program point L56-1(lines 326 332) no Hoare annotation was computed. [2019-10-22 11:23:51,307 INFO L443 ceAbstractionStarter]: For program point L155-4(lines 155 168) no Hoare annotation was computed. [2019-10-22 11:23:51,307 INFO L439 ceAbstractionStarter]: At program point L155-5(lines 1 971) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:23:51,307 INFO L443 ceAbstractionStarter]: For program point L519(lines 519 525) no Hoare annotation was computed. [2019-10-22 11:23:51,307 INFO L439 ceAbstractionStarter]: At program point L519-1(lines 519 525) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1 (_ bv4294967295 32)) (_ bv0 32)) .cse0 .cse1 .cse2 (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) (and (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) .cse1 .cse0) (and .cse0 .cse1 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) .cse2))) [2019-10-22 11:23:51,307 INFO L443 ceAbstractionStarter]: For program point L486(lines 486 490) no Hoare annotation was computed. [2019-10-22 11:23:51,307 INFO L443 ceAbstractionStarter]: For program point L486-2(lines 486 490) no Hoare annotation was computed. [2019-10-22 11:23:51,307 INFO L443 ceAbstractionStarter]: For program point L486-3(lines 486 490) no Hoare annotation was computed. [2019-10-22 11:23:51,307 INFO L443 ceAbstractionStarter]: For program point L486-5(lines 486 490) no Hoare annotation was computed. [2019-10-22 11:23:51,307 INFO L443 ceAbstractionStarter]: For program point L486-6(lines 486 490) no Hoare annotation was computed. [2019-10-22 11:23:51,307 INFO L443 ceAbstractionStarter]: For program point L486-8(lines 486 490) no Hoare annotation was computed. [2019-10-22 11:23:51,308 INFO L443 ceAbstractionStarter]: For program point L486-9(lines 486 490) no Hoare annotation was computed. [2019-10-22 11:23:51,308 INFO L443 ceAbstractionStarter]: For program point L486-11(lines 486 490) no Hoare annotation was computed. [2019-10-22 11:23:51,308 INFO L443 ceAbstractionStarter]: For program point L486-12(lines 486 490) no Hoare annotation was computed. [2019-10-22 11:23:51,308 INFO L443 ceAbstractionStarter]: For program point L486-14(lines 486 490) no Hoare annotation was computed. [2019-10-22 11:23:51,308 INFO L443 ceAbstractionStarter]: For program point L486-15(lines 486 490) no Hoare annotation was computed. [2019-10-22 11:23:51,308 INFO L443 ceAbstractionStarter]: For program point L486-17(lines 486 490) no Hoare annotation was computed. [2019-10-22 11:23:51,308 INFO L443 ceAbstractionStarter]: For program point L388(lines 388 396) no Hoare annotation was computed. [2019-10-22 11:23:51,308 INFO L443 ceAbstractionStarter]: For program point L388-1(lines 388 396) no Hoare annotation was computed. [2019-10-22 11:23:51,308 INFO L443 ceAbstractionStarter]: For program point L388-2(lines 388 396) no Hoare annotation was computed. [2019-10-22 11:23:51,308 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:23:51,308 INFO L443 ceAbstractionStarter]: For program point L159(lines 159 165) no Hoare annotation was computed. [2019-10-22 11:23:51,308 INFO L443 ceAbstractionStarter]: For program point L159-2(lines 159 165) no Hoare annotation was computed. [2019-10-22 11:23:51,308 INFO L443 ceAbstractionStarter]: For program point L159-4(lines 159 165) no Hoare annotation was computed. [2019-10-22 11:23:51,309 INFO L439 ceAbstractionStarter]: At program point L589(lines 540 590) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|)) (.cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and .cse0 (not (= ~systemActive~0 (_ bv0 32))) .cse1 .cse2) (and (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1 (_ bv4294967295 32)) (_ bv0 32)) .cse0 .cse1 .cse2 (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)))) [2019-10-22 11:23:51,309 INFO L443 ceAbstractionStarter]: For program point L358(lines 358 375) no Hoare annotation was computed. [2019-10-22 11:23:51,309 INFO L443 ceAbstractionStarter]: For program point L358-1(lines 358 375) no Hoare annotation was computed. [2019-10-22 11:23:51,309 INFO L443 ceAbstractionStarter]: For program point L358-2(lines 358 375) no Hoare annotation was computed. [2019-10-22 11:23:51,309 INFO L443 ceAbstractionStarter]: For program point L358-3(lines 358 375) no Hoare annotation was computed. [2019-10-22 11:23:51,309 INFO L443 ceAbstractionStarter]: For program point L358-4(lines 358 375) no Hoare annotation was computed. [2019-10-22 11:23:51,309 INFO L443 ceAbstractionStarter]: For program point L358-5(lines 358 375) no Hoare annotation was computed. [2019-10-22 11:23:51,309 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:23:51,309 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 602) no Hoare annotation was computed. [2019-10-22 11:23:51,311 INFO L439 ceAbstractionStarter]: At program point L326(lines 325 344) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1 (_ bv4294967295 32)) (_ bv0 32)) .cse0 .cse1 .cse2 (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) (and .cse0 .cse1 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) .cse2) (and (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) .cse1 .cse0) (and (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1 (_ bv0 32))) (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) (not (= ~systemActive~0 (_ bv0 32))) .cse1 .cse2))) [2019-10-22 11:23:51,311 INFO L443 ceAbstractionStarter]: For program point L326-1(lines 326 332) no Hoare annotation was computed. [2019-10-22 11:23:51,311 INFO L439 ceAbstractionStarter]: At program point L326-2(lines 325 344) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|)) (.cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and .cse0 (not (= ~systemActive~0 (_ bv0 32))) .cse1 .cse2) (and (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1 (_ bv4294967295 32)) (_ bv0 32)) .cse0 .cse1 .cse2 (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)))) [2019-10-22 11:23:51,312 INFO L439 ceAbstractionStarter]: At program point L326-3(lines 325 344) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:23:51,312 INFO L439 ceAbstractionStarter]: At program point L492(lines 477 495) the Hoare annotation is: false [2019-10-22 11:23:51,312 INFO L439 ceAbstractionStarter]: At program point L492-1(lines 477 495) the Hoare annotation is: (let ((.cse0 (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|)) (.cse1 (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv4294967295 32)) (_ bv0 32))) (.cse5 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32))) (.cse6 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv0 32))) (.cse7 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0)) (.cse3 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse4 (not (= ~systemActive~0 (_ bv0 32))))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) .cse7) (and .cse0 .cse1 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1 (_ bv0 32))) (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) .cse2 .cse4 .cse3 .cse5 .cse6 .cse7) (and (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) .cse2 .cse3 .cse4))) [2019-10-22 11:23:51,312 INFO L439 ceAbstractionStarter]: At program point L492-2(lines 477 495) the Hoare annotation is: false [2019-10-22 11:23:51,312 INFO L439 ceAbstractionStarter]: At program point L492-3(lines 477 495) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (not (= ~systemActive~0 (_ bv0 32))) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:23:51,312 INFO L439 ceAbstractionStarter]: At program point L492-4(lines 477 495) the Hoare annotation is: false [2019-10-22 11:23:51,312 INFO L439 ceAbstractionStarter]: At program point L492-5(lines 477 495) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (not (= ~systemActive~0 (_ bv0 32))) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:23:51,312 INFO L443 ceAbstractionStarter]: For program point L261(lines 261 267) no Hoare annotation was computed. [2019-10-22 11:23:51,312 INFO L443 ceAbstractionStarter]: For program point L261-1(lines 261 267) no Hoare annotation was computed. [2019-10-22 11:23:51,312 INFO L443 ceAbstractionStarter]: For program point L261-2(lines 261 267) no Hoare annotation was computed. [2019-10-22 11:23:51,312 INFO L443 ceAbstractionStarter]: For program point L261-3(lines 261 267) no Hoare annotation was computed. [2019-10-22 11:23:51,313 INFO L443 ceAbstractionStarter]: For program point L261-4(lines 261 267) no Hoare annotation was computed. [2019-10-22 11:23:51,313 INFO L443 ceAbstractionStarter]: For program point L261-5(lines 261 267) no Hoare annotation was computed. [2019-10-22 11:23:51,313 INFO L443 ceAbstractionStarter]: For program point L196(lines 196 200) no Hoare annotation was computed. [2019-10-22 11:23:51,313 INFO L443 ceAbstractionStarter]: For program point L130(lines 130 137) no Hoare annotation was computed. [2019-10-22 11:23:51,313 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 602) no Hoare annotation was computed. [2019-10-22 11:23:51,313 INFO L446 ceAbstractionStarter]: At program point L130-1(lines 130 137) the Hoare annotation is: true [2019-10-22 11:23:51,313 INFO L443 ceAbstractionStarter]: For program point L362(lines 362 370) no Hoare annotation was computed. [2019-10-22 11:23:51,313 INFO L443 ceAbstractionStarter]: For program point L362-1(lines 362 370) no Hoare annotation was computed. [2019-10-22 11:23:51,313 INFO L443 ceAbstractionStarter]: For program point L362-2(lines 362 370) no Hoare annotation was computed. [2019-10-22 11:23:51,313 INFO L443 ceAbstractionStarter]: For program point L362-3(lines 362 370) no Hoare annotation was computed. [2019-10-22 11:23:51,313 INFO L443 ceAbstractionStarter]: For program point L362-4(lines 362 370) no Hoare annotation was computed. [2019-10-22 11:23:51,313 INFO L443 ceAbstractionStarter]: For program point L362-5(lines 362 370) no Hoare annotation was computed. [2019-10-22 11:23:51,314 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 11:23:51,314 INFO L443 ceAbstractionStarter]: For program point L561(lines 561 567) no Hoare annotation was computed. [2019-10-22 11:23:51,314 INFO L439 ceAbstractionStarter]: At program point L561-1(lines 561 567) the Hoare annotation is: (let ((.cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse4 (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32))) (.cse5 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1 (_ bv0 32)))) (.cse6 (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|))) (.cse1 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse3 (not (= ~systemActive~0 (_ bv0 32))))) (or (and (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1 (_ bv4294967295 32)) (_ bv0 32)) .cse0 .cse1 .cse2 (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) (and .cse1 .cse2 (and .cse0 .cse3 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|))) (and .cse4 .cse5 .cse6 .cse0 .cse1) (and (and .cse0 .cse3) .cse4 .cse1) (and .cse4 .cse5 .cse6 .cse1 .cse3))) [2019-10-22 11:23:51,314 INFO L439 ceAbstractionStarter]: At program point L266(lines 257 270) the Hoare annotation is: false [2019-10-22 11:23:51,314 INFO L439 ceAbstractionStarter]: At program point L266-1(lines 257 270) the Hoare annotation is: (let ((.cse0 (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|)) (.cse4 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse3 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse2 (not (= ~systemActive~0 (_ bv0 32))))) (or (and .cse0 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1 (_ bv0 32))) (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse3 .cse2 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) .cse4) (and (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) .cse1 .cse3 .cse2))) [2019-10-22 11:23:51,314 INFO L439 ceAbstractionStarter]: At program point L266-2(lines 257 270) the Hoare annotation is: false [2019-10-22 11:23:51,314 INFO L439 ceAbstractionStarter]: At program point L266-3(lines 257 270) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (not (= ~systemActive~0 (_ bv0 32))) (= (_ bv0 32) ~pumpRunning~0) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:23:51,314 INFO L439 ceAbstractionStarter]: At program point L266-4(lines 257 270) the Hoare annotation is: false [2019-10-22 11:23:51,314 INFO L439 ceAbstractionStarter]: At program point L266-5(lines 257 270) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (not (= ~systemActive~0 (_ bv0 32))) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:23:51,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:23:51 BoogieIcfgContainer [2019-10-22 11:23:51,347 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:23:51,348 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:23:51,348 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:23:51,348 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:23:51,348 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:33" (3/4) ... [2019-10-22 11:23:51,352 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:23:51,372 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2019-10-22 11:23:51,373 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2019-10-22 11:23:51,374 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-10-22 11:23:51,375 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 11:23:51,375 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 11:23:51,376 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 11:23:51,408 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 [2019-10-22 11:23:51,408 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 [2019-10-22 11:23:51,409 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(tmp == 0bv32)) && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && 0bv32 == pumpRunning) || ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(tmp == 0bv32)) && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32))) || ((~bvslt32(splverifierCounter, 4bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && (0bv32 == pumpRunning && !(systemActive == 0bv32)) && 1bv32 == \result)) || ((((~bvadd64(tmp, 4294967295bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && 1bv32 == \result) [2019-10-22 11:23:51,409 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0bv32 == pumpRunning && !(systemActive == 0bv32)) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || ((((~bvadd64(tmp, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) [2019-10-22 11:23:51,409 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0bv32 == pumpRunning && !(systemActive == 0bv32)) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || ((((~bvadd64(tmp, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) [2019-10-22 11:23:51,410 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((~bvadd64(tmp, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) || ((~bvslt32(splverifierCounter, 4bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && (0bv32 == pumpRunning && !(systemActive == 0bv32)) && 1bv32 == \result)) || ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(tmp == 0bv32)) && !(0bv32 == \result)) && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32))) || (((0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967294bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32))) || ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(tmp == 0bv32)) && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32)) [2019-10-22 11:23:51,410 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && !(systemActive == 0bv32)) && 0bv32 == tmp) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || ((((~bvadd64(tmp, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) [2019-10-22 11:23:51,410 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((~bvadd64(tmp, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) || ((~bvslt32(splverifierCounter, 4bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && (0bv32 == pumpRunning && !(systemActive == 0bv32)) && 1bv32 == \result)) || ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(tmp == 0bv32)) && !(0bv32 == \result)) && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32))) || (((0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967294bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32))) || ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(tmp == 0bv32)) && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32)) [2019-10-22 11:23:51,410 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((~bvadd64(tmp, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) || (((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && 0bv32 == pumpRunning)) || ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(tmp == 0bv32)) && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32)) [2019-10-22 11:23:51,411 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((~bvadd64(tmp, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) || (((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && 0bv32 == pumpRunning)) || ((((!(tmp == 0bv32) && !(0bv32 == \result)) && !(systemActive == 0bv32)) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) [2019-10-22 11:23:51,411 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((~bvadd64(tmp, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) || (((((!(tmp == 0bv32) && !(0bv32 == \result)) && 0bv32 == pumpRunning) && !(systemActive == 0bv32)) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32))) || (((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && 0bv32 == pumpRunning) [2019-10-22 11:23:51,411 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((0bv32 == pumpRunning && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:23:51,411 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((~bvadd64(tmp, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) || ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && 0bv32 == pumpRunning)) || (((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) [2019-10-22 11:23:51,411 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~bvadd64(tmp, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:23:51,411 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~bvadd64(tmp, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:23:51,412 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32)) || (((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result)) || (((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && 0bv32 == pumpRunning) && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) [2019-10-22 11:23:51,412 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((1bv32 == \result && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 [2019-10-22 11:23:51,412 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~bvadd64(tmp, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:23:51,412 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~bvadd64(tmp, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:23:51,412 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(systemActive == 0bv32) && !(tmp == 0bv32)) && !(0bv32 == \result)) && \result == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 [2019-10-22 11:23:51,413 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1bv32 == \result && !(systemActive == 0bv32)) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && \result == 0bv32) && tmp___0 == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 [2019-10-22 11:23:51,413 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((1bv32 == \result && !(tmp == 0bv32)) && !(0bv32 == \result)) && 0bv32 == pumpRunning) && !(systemActive == 0bv32)) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((((1bv32 == \result && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32)) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || (((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32)) [2019-10-22 11:23:51,413 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((0bv32 == pumpRunning && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:23:51,413 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((~bvadd64(tmp___0, 4294967295bv32) == 0bv32 && !(systemActive == 0bv32)) && tmp == 0bv32) && !(tmp == 0bv32)) && !(0bv32 == \result)) && \result == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 [2019-10-22 11:23:51,415 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~bvadd64(tmp, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:23:51,416 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32)) && \result == 0bv32) && tmp___0 == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((((((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) && !(0bv32 == \result)) && 0bv32 == pumpRunning) && !(systemActive == 0bv32)) && ~bvslt32(splverifierCounter, 4bv32)) && \result == 0bv32) && tmp___0 == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || (((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32)) [2019-10-22 11:23:51,416 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1bv32 == \result && !(systemActive == 0bv32)) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:23:51,417 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((1bv32 == \result && !(systemActive == 0bv32)) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && \result == 0bv32) && tmp___0 == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:23:51,476 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_326a9494-1800-420c-9be2-244d886ad3fb/bin/utaipan/witness.graphml [2019-10-22 11:23:51,476 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:23:51,478 INFO L168 Benchmark]: Toolchain (without parser) took 19305.06 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 392.7 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -115.0 MB). Peak memory consumption was 277.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:51,478 INFO L168 Benchmark]: CDTParser took 0.18 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 11:23:51,478 INFO L168 Benchmark]: CACSL2BoogieTranslator took 586.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -190.2 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:51,478 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:51,478 INFO L168 Benchmark]: Boogie Preprocessor took 56.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:23:51,479 INFO L168 Benchmark]: RCFGBuilder took 923.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 71.2 MB). Peak memory consumption was 71.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:51,479 INFO L168 Benchmark]: TraceAbstraction took 17543.51 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 230.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -23.8 MB). Peak memory consumption was 447.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:51,479 INFO L168 Benchmark]: Witness Printer took 128.93 ms. Allocated memory is still 1.4 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:51,480 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 586.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -190.2 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 61.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 56.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 923.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 71.2 MB). Peak memory consumption was 71.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 17543.51 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 230.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -23.8 MB). Peak memory consumption was 447.8 MB. Max. memory is 11.5 GB. * Witness Printer took 128.93 ms. Allocated memory is still 1.4 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 602]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 602]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 602]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(tmp == 0bv32)) && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && 0bv32 == pumpRunning) || ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(tmp == 0bv32)) && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32))) || ((~bvslt32(splverifierCounter, 4bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && (0bv32 == pumpRunning && !(systemActive == 0bv32)) && 1bv32 == \result)) || ((((~bvadd64(tmp, 4294967295bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && 1bv32 == \result) - InvariantResult [Line: 271]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 271]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 326]: Loop Invariant Derived loop invariant: ((((((~bvadd64(tmp, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) || (((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && 0bv32 == pumpRunning)) || ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(tmp == 0bv32)) && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32)) - InvariantResult [Line: 271]: Loop Invariant Derived loop invariant: ((((!(systemActive == 0bv32) && !(tmp == 0bv32)) && !(0bv32 == \result)) && \result == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 496]: Loop Invariant Derived loop invariant: (((((((~bvadd64(tmp___0, 4294967295bv32) == 0bv32 && !(systemActive == 0bv32)) && tmp == 0bv32) && !(tmp == 0bv32)) && !(0bv32 == \result)) && \result == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 432]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 477]: Loop Invariant Derived loop invariant: ((((((1bv32 == \result && !(systemActive == 0bv32)) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && \result == 0bv32) && tmp___0 == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 257]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 432]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 477]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((~bvadd64(tmp, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 477]: Loop Invariant Derived loop invariant: ((((((((1bv32 == \result && !(systemActive == 0bv32)) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && \result == 0bv32) && tmp___0 == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 519]: Loop Invariant Derived loop invariant: (((((~bvadd64(tmp, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) || ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && 0bv32 == pumpRunning)) || (((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((~bvadd64(tmp, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 561]: Loop Invariant Derived loop invariant: (((((((~bvadd64(tmp, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) || ((~bvslt32(splverifierCounter, 4bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && (0bv32 == pumpRunning && !(systemActive == 0bv32)) && 1bv32 == \result)) || ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(tmp == 0bv32)) && !(0bv32 == \result)) && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32))) || (((0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967294bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32))) || ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(tmp == 0bv32)) && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32)) - InvariantResult [Line: 325]: Loop Invariant Derived loop invariant: (((0bv32 == pumpRunning && !(systemActive == 0bv32)) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || ((((~bvadd64(tmp, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) - InvariantResult [Line: 257]: Loop Invariant Derived loop invariant: (((((1bv32 == \result && !(systemActive == 0bv32)) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 325]: Loop Invariant Derived loop invariant: (((~bvadd64(tmp, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 248]: Loop Invariant Derived loop invariant: ((0bv32 == pumpRunning && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 540]: Loop Invariant Derived loop invariant: (((0bv32 == pumpRunning && !(systemActive == 0bv32)) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || ((((~bvadd64(tmp, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) - InvariantResult [Line: 333]: Loop Invariant Derived loop invariant: (((((((~bvadd64(tmp, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) || (((((!(tmp == 0bv32) && !(0bv32 == \result)) && 0bv32 == pumpRunning) && !(systemActive == 0bv32)) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32))) || (((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && 0bv32 == pumpRunning) - InvariantResult [Line: 257]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 306]: Loop Invariant Derived loop invariant: ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 248]: Loop Invariant Derived loop invariant: ((0bv32 == pumpRunning && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 333]: Loop Invariant Derived loop invariant: ((((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && !(systemActive == 0bv32)) && 0bv32 == tmp) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || ((((~bvadd64(tmp, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) - InvariantResult [Line: 257]: Loop Invariant Derived loop invariant: (((1bv32 == \result && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 477]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: (((~bvadd64(tmp, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 248]: Loop Invariant Derived loop invariant: ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32)) || (((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result)) || (((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && 0bv32 == pumpRunning) && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) - InvariantResult [Line: 257]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 333]: Loop Invariant Derived loop invariant: (((~bvadd64(tmp, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 477]: Loop Invariant Derived loop invariant: (((((((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32)) && \result == 0bv32) && tmp___0 == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((((((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) && !(0bv32 == \result)) && 0bv32 == pumpRunning) && !(systemActive == 0bv32)) && ~bvslt32(splverifierCounter, 4bv32)) && \result == 0bv32) && tmp___0 == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || (((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32)) - InvariantResult [Line: 432]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 257]: Loop Invariant Derived loop invariant: (((((((1bv32 == \result && !(tmp == 0bv32)) && !(0bv32 == \result)) && 0bv32 == pumpRunning) && !(systemActive == 0bv32)) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((((1bv32 == \result && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32)) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || (((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32)) - InvariantResult [Line: 477]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 496]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 120]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 496]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 551]: Loop Invariant Derived loop invariant: (((((((~bvadd64(tmp, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) || ((~bvslt32(splverifierCounter, 4bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && (0bv32 == pumpRunning && !(systemActive == 0bv32)) && 1bv32 == \result)) || ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(tmp == 0bv32)) && !(0bv32 == \result)) && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32))) || (((0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967294bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32))) || ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(tmp == 0bv32)) && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32)) - InvariantResult [Line: 325]: Loop Invariant Derived loop invariant: ((((((~bvadd64(tmp, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) || (((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && 0bv32 == pumpRunning)) || ((((!(tmp == 0bv32) && !(0bv32 == \result)) && !(systemActive == 0bv32)) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 119 locations, 3 error locations. Result: SAFE, OverallTime: 17.4s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.2s, HoareTripleCheckerStatistics: 2018 SDtfs, 5102 SDslu, 5290 SDs, 0 SdLazy, 1070 SolverSat, 271 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1034 GetRequests, 942 SyntacticMatches, 2 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=525occurred in iteration=6, 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, 11 MinimizatonAttempts, 3574 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 44 LocationsWithAnnotation, 44 PreInvPairs, 218 NumberOfFragments, 1246 HoareAnnotationTreeSize, 44 FomulaSimplifications, 531832 FormulaSimplificationTreeSizeReduction, 1.7s HoareSimplificationTime, 44 FomulaSimplificationsInter, 31619 FormulaSimplificationTreeSizeReductionInter, 4.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 498 NumberOfCodeBlocks, 498 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 972 ConstructedInterpolants, 0 QuantifiedInterpolants, 99688 SizeOfPredicates, 45 NumberOfNonLiveVariables, 2505 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 24 InterpolantComputations, 20 PerfectInterpolantSequences, 248/284 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...