./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product57.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_4fba7c49-94a2-40fb-b018-cd192626de3b/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4fba7c49-94a2-40fb-b018-cd192626de3b/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4fba7c49-94a2-40fb-b018-cd192626de3b/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4fba7c49-94a2-40fb-b018-cd192626de3b/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4fba7c49-94a2-40fb-b018-cd192626de3b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4fba7c49-94a2-40fb-b018-cd192626de3b/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 52d4df169e32a92349e61a4b5d4d731cb2f40ee9 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_4fba7c49-94a2-40fb-b018-cd192626de3b/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4fba7c49-94a2-40fb-b018-cd192626de3b/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4fba7c49-94a2-40fb-b018-cd192626de3b/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4fba7c49-94a2-40fb-b018-cd192626de3b/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4fba7c49-94a2-40fb-b018-cd192626de3b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4fba7c49-94a2-40fb-b018-cd192626de3b/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 52d4df169e32a92349e61a4b5d4d731cb2f40ee9 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 11:24:24,028 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:24:24,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:24:24,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:24:24,038 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:24:24,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:24:24,040 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:24:24,041 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:24:24,042 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:24:24,043 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:24:24,044 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:24:24,045 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:24:24,045 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:24:24,046 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:24:24,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:24:24,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:24:24,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:24:24,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:24:24,050 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:24:24,051 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:24:24,052 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:24:24,053 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:24:24,054 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:24:24,054 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:24:24,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:24:24,056 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:24:24,056 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:24:24,057 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:24:24,057 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:24:24,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:24:24,058 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:24:24,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:24:24,059 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:24:24,060 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:24:24,060 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:24:24,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:24:24,061 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:24:24,061 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:24:24,061 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:24:24,062 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:24:24,063 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:24:24,063 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4fba7c49-94a2-40fb-b018-cd192626de3b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:24:24,073 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:24:24,073 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:24:24,074 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:24:24,074 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:24:24,074 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:24:24,074 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:24:24,075 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:24:24,075 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:24:24,075 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:24:24,075 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:24:24,075 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:24:24,075 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:24:24,076 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:24:24,076 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:24:24,076 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:24:24,077 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:24:24,077 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:24:24,077 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:24:24,077 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:24:24,077 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:24:24,077 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:24:24,077 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:24:24,078 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:24:24,078 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:24:24,078 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:24:24,079 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:24:24,079 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:24:24,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:24:24,079 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:24:24,079 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:24:24,080 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:24:24,080 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:24:24,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:24:24,080 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:24:24,080 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:24:24,080 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_4fba7c49-94a2-40fb-b018-cd192626de3b/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 -> 52d4df169e32a92349e61a4b5d4d731cb2f40ee9 [2019-10-22 11:24:24,103 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:24:24,112 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:24:24,115 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:24:24,116 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:24:24,116 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:24:24,117 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4fba7c49-94a2-40fb-b018-cd192626de3b/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c [2019-10-22 11:24:24,159 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4fba7c49-94a2-40fb-b018-cd192626de3b/bin/utaipan/data/c54e80d9d/c43a983b959949898e87f936c85c777a/FLAG252e616eb [2019-10-22 11:24:24,598 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:24:24,599 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4fba7c49-94a2-40fb-b018-cd192626de3b/sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c [2019-10-22 11:24:24,612 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4fba7c49-94a2-40fb-b018-cd192626de3b/bin/utaipan/data/c54e80d9d/c43a983b959949898e87f936c85c777a/FLAG252e616eb [2019-10-22 11:24:24,955 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4fba7c49-94a2-40fb-b018-cd192626de3b/bin/utaipan/data/c54e80d9d/c43a983b959949898e87f936c85c777a [2019-10-22 11:24:24,957 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:24:24,958 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:24:24,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:24:24,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:24:24,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:24:24,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:24:24" (1/1) ... [2019-10-22 11:24:24,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@369312a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:24, skipping insertion in model container [2019-10-22 11:24:24,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:24:24" (1/1) ... [2019-10-22 11:24:24,972 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:24:25,015 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:24:25,381 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:24:25,398 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:24:25,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:24:25,528 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:24:25,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:25 WrapperNode [2019-10-22 11:24:25,528 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:24:25,529 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:24:25,529 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:24:25,529 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:24:25,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:25" (1/1) ... [2019-10-22 11:24:25,552 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:25" (1/1) ... [2019-10-22 11:24:25,595 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:24:25,596 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:24:25,596 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:24:25,596 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:24:25,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:25" (1/1) ... [2019-10-22 11:24:25,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:25" (1/1) ... [2019-10-22 11:24:25,609 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:25" (1/1) ... [2019-10-22 11:24:25,610 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:25" (1/1) ... [2019-10-22 11:24:25,620 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:25" (1/1) ... [2019-10-22 11:24:25,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:25" (1/1) ... [2019-10-22 11:24:25,630 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:25" (1/1) ... [2019-10-22 11:24:25,634 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:24:25,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:24:25,635 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:24:25,635 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:24:25,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4fba7c49-94a2-40fb-b018-cd192626de3b/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 11:24:25,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:24:25,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 11:24:25,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:24:25,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:24:26,488 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:24:26,488 INFO L284 CfgBuilder]: Removed 192 assume(true) statements. [2019-10-22 11:24:26,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:26 BoogieIcfgContainer [2019-10-22 11:24:26,489 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:24:26,490 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:24:26,492 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:24:26,494 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:24:26,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:24:24" (1/3) ... [2019-10-22 11:24:26,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ffb64aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:24:26, skipping insertion in model container [2019-10-22 11:24:26,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:25" (2/3) ... [2019-10-22 11:24:26,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ffb64aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:24:26, skipping insertion in model container [2019-10-22 11:24:26,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:26" (3/3) ... [2019-10-22 11:24:26,497 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product57.cil.c [2019-10-22 11:24:26,506 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:24:26,513 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:24:26,524 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:24:26,557 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:24:26,557 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:24:26,557 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:24:26,558 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:24:26,558 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:24:26,558 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:24:26,558 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:24:26,558 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:24:26,577 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states. [2019-10-22 11:24:26,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 11:24:26,586 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:26,586 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:26,588 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:26,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:26,594 INFO L82 PathProgramCache]: Analyzing trace with hash 1916587088, now seen corresponding path program 1 times [2019-10-22 11:24:26,602 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:26,603 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677302866] [2019-10-22 11:24:26,603 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:26,603 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:26,604 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:26,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:26,811 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 11:24:26,811 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677302866] [2019-10-22 11:24:26,812 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:26,812 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:24:26,812 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661094867] [2019-10-22 11:24:26,816 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:24:26,817 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:26,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:24:26,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:24:26,829 INFO L87 Difference]: Start difference. First operand 135 states. Second operand 2 states. [2019-10-22 11:24:26,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:26,855 INFO L93 Difference]: Finished difference Result 264 states and 395 transitions. [2019-10-22 11:24:26,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:24:26,857 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-10-22 11:24:26,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:26,867 INFO L225 Difference]: With dead ends: 264 [2019-10-22 11:24:26,867 INFO L226 Difference]: Without dead ends: 131 [2019-10-22 11:24:26,870 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 11:24:26,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2019-10-22 11:24:26,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2019-10-22 11:24:26,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2019-10-22 11:24:26,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 189 transitions. [2019-10-22 11:24:26,909 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 189 transitions. Word has length 16 [2019-10-22 11:24:26,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:26,910 INFO L462 AbstractCegarLoop]: Abstraction has 131 states and 189 transitions. [2019-10-22 11:24:26,910 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:24:26,910 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 189 transitions. [2019-10-22 11:24:26,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 11:24:26,911 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:26,911 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 11:24:26,911 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:26,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:26,912 INFO L82 PathProgramCache]: Analyzing trace with hash 869830191, now seen corresponding path program 1 times [2019-10-22 11:24:26,912 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:26,912 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234584267] [2019-10-22 11:24:26,912 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:26,912 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:26,912 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:26,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:27,000 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 11:24:27,000 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234584267] [2019-10-22 11:24:27,000 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:27,000 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:24:27,000 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953019731] [2019-10-22 11:24:27,002 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:24:27,002 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:27,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:24:27,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:24:27,002 INFO L87 Difference]: Start difference. First operand 131 states and 189 transitions. Second operand 3 states. [2019-10-22 11:24:27,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:27,014 INFO L93 Difference]: Finished difference Result 131 states and 189 transitions. [2019-10-22 11:24:27,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:24:27,014 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-10-22 11:24:27,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:27,015 INFO L225 Difference]: With dead ends: 131 [2019-10-22 11:24:27,015 INFO L226 Difference]: Without dead ends: 53 [2019-10-22 11:24:27,016 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 11:24:27,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-10-22 11:24:27,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2019-10-22 11:24:27,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-10-22 11:24:27,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 76 transitions. [2019-10-22 11:24:27,021 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 76 transitions. Word has length 17 [2019-10-22 11:24:27,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:27,021 INFO L462 AbstractCegarLoop]: Abstraction has 53 states and 76 transitions. [2019-10-22 11:24:27,021 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:24:27,022 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 76 transitions. [2019-10-22 11:24:27,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 11:24:27,022 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:27,022 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 11:24:27,023 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:27,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:27,023 INFO L82 PathProgramCache]: Analyzing trace with hash 105563969, now seen corresponding path program 1 times [2019-10-22 11:24:27,023 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:27,023 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812923197] [2019-10-22 11:24:27,023 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:27,023 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:27,024 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:27,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:27,171 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 11:24:27,171 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812923197] [2019-10-22 11:24:27,172 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:27,172 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:24:27,172 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25853365] [2019-10-22 11:24:27,172 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:24:27,173 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:27,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:24:27,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:24:27,173 INFO L87 Difference]: Start difference. First operand 53 states and 76 transitions. Second operand 6 states. [2019-10-22 11:24:27,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:27,268 INFO L93 Difference]: Finished difference Result 100 states and 146 transitions. [2019-10-22 11:24:27,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:24:27,270 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2019-10-22 11:24:27,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:27,270 INFO L225 Difference]: With dead ends: 100 [2019-10-22 11:24:27,271 INFO L226 Difference]: Without dead ends: 53 [2019-10-22 11:24:27,271 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 11:24:27,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-10-22 11:24:27,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2019-10-22 11:24:27,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-10-22 11:24:27,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 75 transitions. [2019-10-22 11:24:27,278 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 75 transitions. Word has length 22 [2019-10-22 11:24:27,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:27,279 INFO L462 AbstractCegarLoop]: Abstraction has 53 states and 75 transitions. [2019-10-22 11:24:27,279 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:24:27,279 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 75 transitions. [2019-10-22 11:24:27,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 11:24:27,279 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:27,280 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 11:24:27,280 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:27,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:27,280 INFO L82 PathProgramCache]: Analyzing trace with hash -72226312, now seen corresponding path program 1 times [2019-10-22 11:24:27,280 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:27,280 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083259985] [2019-10-22 11:24:27,281 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:27,281 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:27,281 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:27,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:27,356 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 11:24:27,356 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083259985] [2019-10-22 11:24:27,356 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:27,356 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:24:27,357 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366432179] [2019-10-22 11:24:27,357 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:24:27,357 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:27,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:24:27,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:24:27,358 INFO L87 Difference]: Start difference. First operand 53 states and 75 transitions. Second operand 3 states. [2019-10-22 11:24:27,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:27,416 INFO L93 Difference]: Finished difference Result 121 states and 174 transitions. [2019-10-22 11:24:27,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:24:27,417 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-10-22 11:24:27,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:27,418 INFO L225 Difference]: With dead ends: 121 [2019-10-22 11:24:27,418 INFO L226 Difference]: Without dead ends: 74 [2019-10-22 11:24:27,418 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 11:24:27,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2019-10-22 11:24:27,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 72. [2019-10-22 11:24:27,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-10-22 11:24:27,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 101 transitions. [2019-10-22 11:24:27,428 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 101 transitions. Word has length 24 [2019-10-22 11:24:27,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:27,429 INFO L462 AbstractCegarLoop]: Abstraction has 72 states and 101 transitions. [2019-10-22 11:24:27,429 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:24:27,429 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 101 transitions. [2019-10-22 11:24:27,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 11:24:27,430 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:27,430 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] [2019-10-22 11:24:27,435 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:27,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:27,437 INFO L82 PathProgramCache]: Analyzing trace with hash 615192364, now seen corresponding path program 1 times [2019-10-22 11:24:27,437 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:27,437 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169395251] [2019-10-22 11:24:27,437 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:27,437 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:27,437 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:27,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:27,538 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 11:24:27,538 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169395251] [2019-10-22 11:24:27,538 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:27,539 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:24:27,539 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667414444] [2019-10-22 11:24:27,539 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:24:27,539 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:27,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:24:27,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:24:27,540 INFO L87 Difference]: Start difference. First operand 72 states and 101 transitions. Second operand 5 states. [2019-10-22 11:24:27,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:27,663 INFO L93 Difference]: Finished difference Result 253 states and 363 transitions. [2019-10-22 11:24:27,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:24:27,666 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-10-22 11:24:27,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:27,667 INFO L225 Difference]: With dead ends: 253 [2019-10-22 11:24:27,667 INFO L226 Difference]: Without dead ends: 187 [2019-10-22 11:24:27,667 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 11:24:27,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2019-10-22 11:24:27,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 115. [2019-10-22 11:24:27,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-10-22 11:24:27,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 158 transitions. [2019-10-22 11:24:27,679 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 158 transitions. Word has length 30 [2019-10-22 11:24:27,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:27,680 INFO L462 AbstractCegarLoop]: Abstraction has 115 states and 158 transitions. [2019-10-22 11:24:27,680 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:24:27,680 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 158 transitions. [2019-10-22 11:24:27,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 11:24:27,681 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:27,681 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 11:24:27,681 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:27,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:27,682 INFO L82 PathProgramCache]: Analyzing trace with hash -1392623830, now seen corresponding path program 1 times [2019-10-22 11:24:27,682 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:27,682 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59413325] [2019-10-22 11:24:27,683 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:27,683 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:27,683 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:27,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:27,754 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 11:24:27,755 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59413325] [2019-10-22 11:24:27,755 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:27,755 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:24:27,755 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873463987] [2019-10-22 11:24:27,756 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:24:27,756 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:27,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:24:27,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:24:27,756 INFO L87 Difference]: Start difference. First operand 115 states and 158 transitions. Second operand 5 states. [2019-10-22 11:24:27,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:27,884 INFO L93 Difference]: Finished difference Result 247 states and 347 transitions. [2019-10-22 11:24:27,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:24:27,886 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-10-22 11:24:27,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:27,887 INFO L225 Difference]: With dead ends: 247 [2019-10-22 11:24:27,888 INFO L226 Difference]: Without dead ends: 245 [2019-10-22 11:24:27,888 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 11:24:27,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2019-10-22 11:24:27,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 115. [2019-10-22 11:24:27,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-10-22 11:24:27,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 157 transitions. [2019-10-22 11:24:27,912 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 157 transitions. Word has length 31 [2019-10-22 11:24:27,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:27,912 INFO L462 AbstractCegarLoop]: Abstraction has 115 states and 157 transitions. [2019-10-22 11:24:27,912 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:24:27,912 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 157 transitions. [2019-10-22 11:24:27,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 11:24:27,913 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:27,913 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:27,914 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:27,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:27,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1640626781, now seen corresponding path program 1 times [2019-10-22 11:24:27,917 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:27,918 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118418522] [2019-10-22 11:24:27,918 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:27,918 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:27,918 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:27,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:27,986 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 11:24:27,986 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118418522] [2019-10-22 11:24:27,986 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:27,986 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:24:27,987 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903010332] [2019-10-22 11:24:27,987 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:24:27,987 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:27,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:24:27,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:24:27,988 INFO L87 Difference]: Start difference. First operand 115 states and 157 transitions. Second operand 5 states. [2019-10-22 11:24:28,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:28,052 INFO L93 Difference]: Finished difference Result 307 states and 418 transitions. [2019-10-22 11:24:28,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:24:28,053 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2019-10-22 11:24:28,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:28,054 INFO L225 Difference]: With dead ends: 307 [2019-10-22 11:24:28,054 INFO L226 Difference]: Without dead ends: 198 [2019-10-22 11:24:28,055 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 11:24:28,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2019-10-22 11:24:28,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 124. [2019-10-22 11:24:28,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-10-22 11:24:28,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 166 transitions. [2019-10-22 11:24:28,072 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 166 transitions. Word has length 34 [2019-10-22 11:24:28,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:28,073 INFO L462 AbstractCegarLoop]: Abstraction has 124 states and 166 transitions. [2019-10-22 11:24:28,073 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:24:28,073 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 166 transitions. [2019-10-22 11:24:28,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 11:24:28,074 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:28,074 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:28,074 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:28,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:28,074 INFO L82 PathProgramCache]: Analyzing trace with hash 2067534501, now seen corresponding path program 1 times [2019-10-22 11:24:28,075 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:28,075 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820183546] [2019-10-22 11:24:28,075 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:28,075 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:28,075 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:28,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:28,112 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 11:24:28,112 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820183546] [2019-10-22 11:24:28,112 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:28,112 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:24:28,113 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998084272] [2019-10-22 11:24:28,113 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:24:28,113 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:28,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:24:28,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:24:28,114 INFO L87 Difference]: Start difference. First operand 124 states and 166 transitions. Second operand 4 states. [2019-10-22 11:24:28,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:28,149 INFO L93 Difference]: Finished difference Result 265 states and 355 transitions. [2019-10-22 11:24:28,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:24:28,150 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2019-10-22 11:24:28,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:28,151 INFO L225 Difference]: With dead ends: 265 [2019-10-22 11:24:28,151 INFO L226 Difference]: Without dead ends: 147 [2019-10-22 11:24:28,151 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:24:28,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2019-10-22 11:24:28,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 106. [2019-10-22 11:24:28,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-10-22 11:24:28,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 139 transitions. [2019-10-22 11:24:28,160 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 139 transitions. Word has length 34 [2019-10-22 11:24:28,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:28,161 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 139 transitions. [2019-10-22 11:24:28,161 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:24:28,161 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 139 transitions. [2019-10-22 11:24:28,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 11:24:28,162 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:28,162 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:28,162 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:28,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:28,162 INFO L82 PathProgramCache]: Analyzing trace with hash 787670823, now seen corresponding path program 1 times [2019-10-22 11:24:28,163 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:28,163 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912173808] [2019-10-22 11:24:28,163 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:28,163 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:28,163 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:28,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:28,210 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 11:24:28,210 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912173808] [2019-10-22 11:24:28,210 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:28,210 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:24:28,211 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588312044] [2019-10-22 11:24:28,211 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:24:28,211 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:28,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:24:28,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:24:28,212 INFO L87 Difference]: Start difference. First operand 106 states and 139 transitions. Second operand 5 states. [2019-10-22 11:24:28,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:28,319 INFO L93 Difference]: Finished difference Result 289 states and 390 transitions. [2019-10-22 11:24:28,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:24:28,319 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2019-10-22 11:24:28,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:28,320 INFO L225 Difference]: With dead ends: 289 [2019-10-22 11:24:28,321 INFO L226 Difference]: Without dead ends: 213 [2019-10-22 11:24:28,321 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 11:24:28,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2019-10-22 11:24:28,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 147. [2019-10-22 11:24:28,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2019-10-22 11:24:28,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 191 transitions. [2019-10-22 11:24:28,335 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 191 transitions. Word has length 34 [2019-10-22 11:24:28,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:28,335 INFO L462 AbstractCegarLoop]: Abstraction has 147 states and 191 transitions. [2019-10-22 11:24:28,336 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:24:28,336 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 191 transitions. [2019-10-22 11:24:28,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-22 11:24:28,337 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:28,337 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:28,337 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:28,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:28,338 INFO L82 PathProgramCache]: Analyzing trace with hash -1437514545, now seen corresponding path program 1 times [2019-10-22 11:24:28,338 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:28,338 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702672602] [2019-10-22 11:24:28,338 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:28,339 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:28,339 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:28,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:28,407 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 11:24:28,407 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702672602] [2019-10-22 11:24:28,407 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822782402] [2019-10-22 11:24:28,408 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4fba7c49-94a2-40fb-b018-cd192626de3b/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 11:24:28,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:28,541 INFO L256 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:24:28,546 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:24:28,576 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 11:24:28,577 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:24:28,600 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 11:24:28,601 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [886115527] [2019-10-22 11:24:28,606 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 56 [2019-10-22 11:24:28,649 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-10-22 11:24:28,649 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-22 11:24:29,095 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:24:29,096 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 11:24:29,108 INFO L168 Benchmark]: Toolchain (without parser) took 4149.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 197.7 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -172.7 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:29,108 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:24:29,109 INFO L168 Benchmark]: CACSL2BoogieTranslator took 569.63 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -138.8 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:29,109 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.71 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:29,110 INFO L168 Benchmark]: Boogie Preprocessor took 38.74 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:29,111 INFO L168 Benchmark]: RCFGBuilder took 854.55 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: 70.6 MB). Peak memory consumption was 70.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:29,111 INFO L168 Benchmark]: TraceAbstraction took 2616.19 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 91.2 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -113.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:24:29,113 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 569.63 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -138.8 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 66.71 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.74 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 854.55 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: 70.6 MB). Peak memory consumption was 70.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2616.19 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 91.2 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -113.1 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 11:24:31,071 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:24:31,072 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:24:31,084 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:24:31,084 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:24:31,085 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:24:31,086 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:24:31,087 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:24:31,089 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:24:31,089 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:24:31,090 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:24:31,091 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:24:31,091 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:24:31,092 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:24:31,092 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:24:31,093 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:24:31,094 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:24:31,095 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:24:31,096 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:24:31,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:24:31,099 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:24:31,100 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:24:31,101 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:24:31,101 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:24:31,103 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:24:31,104 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:24:31,104 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:24:31,105 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:24:31,105 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:24:31,106 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:24:31,106 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:24:31,107 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:24:31,108 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:24:31,108 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:24:31,109 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:24:31,109 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:24:31,110 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:24:31,110 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:24:31,110 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:24:31,111 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:24:31,111 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:24:31,112 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4fba7c49-94a2-40fb-b018-cd192626de3b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:24:31,123 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:24:31,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:24:31,124 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:24:31,124 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:24:31,124 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:24:31,124 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:24:31,125 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:24:31,125 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:24:31,125 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:24:31,125 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:24:31,126 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:24:31,126 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:24:31,126 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:24:31,126 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:24:31,126 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:24:31,127 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:24:31,127 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:24:31,127 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:24:31,127 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:24:31,127 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:24:31,127 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:24:31,127 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:24:31,128 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:24:31,128 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:24:31,128 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:24:31,128 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:24:31,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:24:31,128 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:24:31,128 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:24:31,129 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:24:31,129 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:24:31,129 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:24:31,129 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:24:31,129 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:24:31,129 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_4fba7c49-94a2-40fb-b018-cd192626de3b/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 -> 52d4df169e32a92349e61a4b5d4d731cb2f40ee9 [2019-10-22 11:24:31,158 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:24:31,167 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:24:31,170 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:24:31,171 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:24:31,171 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:24:31,172 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4fba7c49-94a2-40fb-b018-cd192626de3b/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c [2019-10-22 11:24:31,216 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4fba7c49-94a2-40fb-b018-cd192626de3b/bin/utaipan/data/ed59340ad/7b9bc8a8c89845d98eb42e6dcc8213bc/FLAG65fae2e10 [2019-10-22 11:24:31,667 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:24:31,668 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4fba7c49-94a2-40fb-b018-cd192626de3b/sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c [2019-10-22 11:24:31,677 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4fba7c49-94a2-40fb-b018-cd192626de3b/bin/utaipan/data/ed59340ad/7b9bc8a8c89845d98eb42e6dcc8213bc/FLAG65fae2e10 [2019-10-22 11:24:32,195 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4fba7c49-94a2-40fb-b018-cd192626de3b/bin/utaipan/data/ed59340ad/7b9bc8a8c89845d98eb42e6dcc8213bc [2019-10-22 11:24:32,199 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:24:32,200 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:24:32,201 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:24:32,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:24:32,205 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:24:32,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:24:32" (1/1) ... [2019-10-22 11:24:32,208 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d413584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:32, skipping insertion in model container [2019-10-22 11:24:32,208 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:24:32" (1/1) ... [2019-10-22 11:24:32,214 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:24:32,254 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:24:32,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:24:32,636 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:24:32,721 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:24:32,753 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:24:32,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:32 WrapperNode [2019-10-22 11:24:32,754 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:24:32,755 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:24:32,755 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:24:32,755 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:24:32,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:32" (1/1) ... [2019-10-22 11:24:32,776 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:32" (1/1) ... [2019-10-22 11:24:32,811 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:24:32,811 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:24:32,811 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:24:32,811 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:24:32,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:32" (1/1) ... [2019-10-22 11:24:32,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:32" (1/1) ... [2019-10-22 11:24:32,825 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:32" (1/1) ... [2019-10-22 11:24:32,825 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:32" (1/1) ... [2019-10-22 11:24:32,837 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:32" (1/1) ... [2019-10-22 11:24:32,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:32" (1/1) ... [2019-10-22 11:24:32,859 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:32" (1/1) ... [2019-10-22 11:24:32,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:24:32,866 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:24:32,867 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:24:32,867 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:24:32,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4fba7c49-94a2-40fb-b018-cd192626de3b/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 11:24:32,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:24:32,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-10-22 11:24:32,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:24:32,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:24:33,823 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:24:33,823 INFO L284 CfgBuilder]: Removed 192 assume(true) statements. [2019-10-22 11:24:33,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:33 BoogieIcfgContainer [2019-10-22 11:24:33,825 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:24:33,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:24:33,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:24:33,829 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:24:33,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:24:32" (1/3) ... [2019-10-22 11:24:33,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67e991c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:24:33, skipping insertion in model container [2019-10-22 11:24:33,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:32" (2/3) ... [2019-10-22 11:24:33,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67e991c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:24:33, skipping insertion in model container [2019-10-22 11:24:33,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:33" (3/3) ... [2019-10-22 11:24:33,833 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product57.cil.c [2019-10-22 11:24:33,843 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:24:33,853 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:24:33,863 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:24:33,890 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:24:33,890 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:24:33,890 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:24:33,890 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:24:33,891 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:24:33,891 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:24:33,891 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:24:33,891 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:24:33,908 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states. [2019-10-22 11:24:33,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 11:24:33,916 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:33,917 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:33,919 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:33,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:33,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1916587088, now seen corresponding path program 1 times [2019-10-22 11:24:33,936 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:24:33,937 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [851350188] [2019-10-22 11:24:33,937 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4fba7c49-94a2-40fb-b018-cd192626de3b/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 11:24:34,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:34,136 INFO L256 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-22 11:24:34,141 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:24:34,156 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 11:24:34,157 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:24:34,161 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 11:24:34,164 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [851350188] [2019-10-22 11:24:34,165 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:34,165 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 11:24:34,166 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603849128] [2019-10-22 11:24:34,170 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:24:34,170 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:24:34,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:24:34,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:24:34,185 INFO L87 Difference]: Start difference. First operand 135 states. Second operand 2 states. [2019-10-22 11:24:34,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:34,227 INFO L93 Difference]: Finished difference Result 264 states and 395 transitions. [2019-10-22 11:24:34,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:24:34,228 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-10-22 11:24:34,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:34,240 INFO L225 Difference]: With dead ends: 264 [2019-10-22 11:24:34,240 INFO L226 Difference]: Without dead ends: 131 [2019-10-22 11:24:34,243 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 11:24:34,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2019-10-22 11:24:34,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2019-10-22 11:24:34,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2019-10-22 11:24:34,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 189 transitions. [2019-10-22 11:24:34,296 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 189 transitions. Word has length 16 [2019-10-22 11:24:34,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:34,297 INFO L462 AbstractCegarLoop]: Abstraction has 131 states and 189 transitions. [2019-10-22 11:24:34,297 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:24:34,297 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 189 transitions. [2019-10-22 11:24:34,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 11:24:34,298 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:34,298 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 11:24:34,499 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:24:34,499 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:34,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:34,500 INFO L82 PathProgramCache]: Analyzing trace with hash 869830191, now seen corresponding path program 1 times [2019-10-22 11:24:34,500 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:24:34,501 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [788322580] [2019-10-22 11:24:34,501 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4fba7c49-94a2-40fb-b018-cd192626de3b/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 11:24:34,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:34,643 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:24:34,645 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:24:34,669 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 11:24:34,671 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:24:34,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:34,685 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [788322580] [2019-10-22 11:24:34,686 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:34,686 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-10-22 11:24:34,686 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229618819] [2019-10-22 11:24:34,687 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:24:34,688 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:24:34,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:24:34,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:24:34,688 INFO L87 Difference]: Start difference. First operand 131 states and 189 transitions. Second operand 4 states. [2019-10-22 11:24:34,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:34,737 INFO L93 Difference]: Finished difference Result 256 states and 372 transitions. [2019-10-22 11:24:34,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:24:34,739 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-10-22 11:24:34,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:34,740 INFO L225 Difference]: With dead ends: 256 [2019-10-22 11:24:34,740 INFO L226 Difference]: Without dead ends: 131 [2019-10-22 11:24:34,741 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 11:24:34,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2019-10-22 11:24:34,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2019-10-22 11:24:34,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2019-10-22 11:24:34,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 186 transitions. [2019-10-22 11:24:34,768 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 186 transitions. Word has length 17 [2019-10-22 11:24:34,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:34,769 INFO L462 AbstractCegarLoop]: Abstraction has 131 states and 186 transitions. [2019-10-22 11:24:34,769 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:24:34,769 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 186 transitions. [2019-10-22 11:24:34,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:24:34,770 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:34,770 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 11:24:34,970 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:24:34,971 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:34,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:34,971 INFO L82 PathProgramCache]: Analyzing trace with hash -51789562, now seen corresponding path program 1 times [2019-10-22 11:24:34,972 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:24:34,972 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [592896860] [2019-10-22 11:24:34,972 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4fba7c49-94a2-40fb-b018-cd192626de3b/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 11:24:35,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:35,111 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:24:35,112 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:24:35,137 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 11:24:35,138 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:24:35,139 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 11:24:35,140 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [592896860] [2019-10-22 11:24:35,140 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:35,140 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-22 11:24:35,140 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187963979] [2019-10-22 11:24:35,141 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:24:35,141 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:24:35,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:24:35,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:24:35,141 INFO L87 Difference]: Start difference. First operand 131 states and 186 transitions. Second operand 3 states. [2019-10-22 11:24:35,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:35,295 INFO L93 Difference]: Finished difference Result 303 states and 429 transitions. [2019-10-22 11:24:35,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:24:35,296 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-10-22 11:24:35,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:35,297 INFO L225 Difference]: With dead ends: 303 [2019-10-22 11:24:35,297 INFO L226 Difference]: Without dead ends: 178 [2019-10-22 11:24:35,298 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 11:24:35,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2019-10-22 11:24:35,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 172. [2019-10-22 11:24:35,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2019-10-22 11:24:35,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 237 transitions. [2019-10-22 11:24:35,320 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 237 transitions. Word has length 19 [2019-10-22 11:24:35,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:35,320 INFO L462 AbstractCegarLoop]: Abstraction has 172 states and 237 transitions. [2019-10-22 11:24:35,321 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:24:35,321 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 237 transitions. [2019-10-22 11:24:35,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 11:24:35,321 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:35,321 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 11:24:35,522 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:24:35,522 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:35,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:35,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1976823450, now seen corresponding path program 1 times [2019-10-22 11:24:35,523 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:24:35,523 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1791111909] [2019-10-22 11:24:35,523 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4fba7c49-94a2-40fb-b018-cd192626de3b/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 11:24:35,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:35,665 INFO L256 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:24:35,666 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:24:35,692 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 11:24:35,693 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:24:35,724 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 11:24:35,725 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1791111909] [2019-10-22 11:24:35,725 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:35,725 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-10-22 11:24:35,725 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575332801] [2019-10-22 11:24:35,725 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:24:35,726 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:24:35,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:24:35,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:24:35,727 INFO L87 Difference]: Start difference. First operand 172 states and 237 transitions. Second operand 8 states. [2019-10-22 11:24:36,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:36,247 INFO L93 Difference]: Finished difference Result 1198 states and 1683 transitions. [2019-10-22 11:24:36,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-22 11:24:36,248 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2019-10-22 11:24:36,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:36,252 INFO L225 Difference]: With dead ends: 1198 [2019-10-22 11:24:36,252 INFO L226 Difference]: Without dead ends: 1032 [2019-10-22 11:24:36,254 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2019-10-22 11:24:36,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1032 states. [2019-10-22 11:24:36,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1032 to 415. [2019-10-22 11:24:36,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2019-10-22 11:24:36,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 558 transitions. [2019-10-22 11:24:36,359 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 558 transitions. Word has length 25 [2019-10-22 11:24:36,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:36,360 INFO L462 AbstractCegarLoop]: Abstraction has 415 states and 558 transitions. [2019-10-22 11:24:36,360 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:24:36,360 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 558 transitions. [2019-10-22 11:24:36,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-10-22 11:24:36,364 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:36,364 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, 1, 1] [2019-10-22 11:24:36,565 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:24:36,565 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:36,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:36,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1960142319, now seen corresponding path program 1 times [2019-10-22 11:24:36,566 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:24:36,566 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [208280441] [2019-10-22 11:24:36,566 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4fba7c49-94a2-40fb-b018-cd192626de3b/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 11:24:36,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:36,697 INFO L256 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:24:36,698 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:24:36,720 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 11:24:36,720 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:24:36,725 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 11:24:36,725 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [208280441] [2019-10-22 11:24:36,725 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:36,725 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:24:36,725 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600412873] [2019-10-22 11:24:36,726 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:24:36,726 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:24:36,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:24:36,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:24:36,727 INFO L87 Difference]: Start difference. First operand 415 states and 558 transitions. Second operand 5 states. [2019-10-22 11:24:36,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:36,912 INFO L93 Difference]: Finished difference Result 1110 states and 1455 transitions. [2019-10-22 11:24:36,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:24:36,912 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2019-10-22 11:24:36,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:36,914 INFO L225 Difference]: With dead ends: 1110 [2019-10-22 11:24:36,914 INFO L226 Difference]: Without dead ends: 701 [2019-10-22 11:24:36,916 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 85 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 11:24:36,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2019-10-22 11:24:36,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 460. [2019-10-22 11:24:36,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 460 states. [2019-10-22 11:24:36,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 603 transitions. [2019-10-22 11:24:36,954 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 603 transitions. Word has length 44 [2019-10-22 11:24:36,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:36,954 INFO L462 AbstractCegarLoop]: Abstraction has 460 states and 603 transitions. [2019-10-22 11:24:36,954 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:24:36,954 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 603 transitions. [2019-10-22 11:24:36,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-10-22 11:24:36,956 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:36,956 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:37,156 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:24:37,157 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:37,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:37,157 INFO L82 PathProgramCache]: Analyzing trace with hash -573938925, now seen corresponding path program 1 times [2019-10-22 11:24:37,157 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:24:37,158 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [702188248] [2019-10-22 11:24:37,158 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4fba7c49-94a2-40fb-b018-cd192626de3b/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 11:24:37,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:37,280 INFO L256 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:24:37,282 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:24:37,297 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 11:24:37,298 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:24:37,312 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 11:24:37,312 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [702188248] [2019-10-22 11:24:37,312 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:37,313 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-10-22 11:24:37,313 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974730841] [2019-10-22 11:24:37,313 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:24:37,313 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:24:37,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:24:37,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:24:37,314 INFO L87 Difference]: Start difference. First operand 460 states and 603 transitions. Second operand 6 states. [2019-10-22 11:24:37,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:37,479 INFO L93 Difference]: Finished difference Result 1013 states and 1311 transitions. [2019-10-22 11:24:37,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:24:37,480 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2019-10-22 11:24:37,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:37,482 INFO L225 Difference]: With dead ends: 1013 [2019-10-22 11:24:37,482 INFO L226 Difference]: Without dead ends: 522 [2019-10-22 11:24:37,483 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 83 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 11:24:37,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2019-10-22 11:24:37,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 354. [2019-10-22 11:24:37,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2019-10-22 11:24:37,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 460 transitions. [2019-10-22 11:24:37,516 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 460 transitions. Word has length 44 [2019-10-22 11:24:37,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:37,516 INFO L462 AbstractCegarLoop]: Abstraction has 354 states and 460 transitions. [2019-10-22 11:24:37,517 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:24:37,517 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 460 transitions. [2019-10-22 11:24:37,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-10-22 11:24:37,521 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:37,521 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, 1, 1] [2019-10-22 11:24:37,721 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:24:37,722 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:37,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:37,722 INFO L82 PathProgramCache]: Analyzing trace with hash 596652569, now seen corresponding path program 1 times [2019-10-22 11:24:37,722 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:24:37,722 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [295900942] [2019-10-22 11:24:37,722 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4fba7c49-94a2-40fb-b018-cd192626de3b/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 11:24:37,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:37,836 INFO L256 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:24:37,838 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:24:37,853 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 11:24:37,853 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:24:37,858 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 11:24:37,858 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [295900942] [2019-10-22 11:24:37,858 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:37,858 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-22 11:24:37,859 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877203731] [2019-10-22 11:24:37,859 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:24:37,859 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:24:37,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:24:37,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:24:37,859 INFO L87 Difference]: Start difference. First operand 354 states and 460 transitions. Second operand 3 states. [2019-10-22 11:24:37,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:37,874 INFO L93 Difference]: Finished difference Result 354 states and 460 transitions. [2019-10-22 11:24:37,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:24:37,874 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 49 [2019-10-22 11:24:37,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:37,875 INFO L225 Difference]: With dead ends: 354 [2019-10-22 11:24:37,875 INFO L226 Difference]: Without dead ends: 158 [2019-10-22 11:24:37,876 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 95 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 11:24:37,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2019-10-22 11:24:37,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2019-10-22 11:24:37,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-10-22 11:24:37,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 210 transitions. [2019-10-22 11:24:37,887 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 210 transitions. Word has length 49 [2019-10-22 11:24:37,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:37,887 INFO L462 AbstractCegarLoop]: Abstraction has 158 states and 210 transitions. [2019-10-22 11:24:37,888 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:24:37,888 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 210 transitions. [2019-10-22 11:24:37,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-22 11:24:37,888 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:37,888 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:38,089 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:24:38,089 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:38,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:38,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1577661661, now seen corresponding path program 1 times [2019-10-22 11:24:38,090 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:24:38,090 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1533663731] [2019-10-22 11:24:38,090 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4fba7c49-94a2-40fb-b018-cd192626de3b/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 11:24:38,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:38,249 INFO L256 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:24:38,251 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:24:38,271 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-22 11:24:38,271 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:24:38,281 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-22 11:24:38,282 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1533663731] [2019-10-22 11:24:38,282 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:38,282 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:24:38,282 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637941310] [2019-10-22 11:24:38,282 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:24:38,283 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:24:38,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:24:38,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:24:38,283 INFO L87 Difference]: Start difference. First operand 158 states and 210 transitions. Second operand 5 states. [2019-10-22 11:24:38,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:38,437 INFO L93 Difference]: Finished difference Result 417 states and 561 transitions. [2019-10-22 11:24:38,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:24:38,438 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 53 [2019-10-22 11:24:38,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:38,439 INFO L225 Difference]: With dead ends: 417 [2019-10-22 11:24:38,439 INFO L226 Difference]: Without dead ends: 415 [2019-10-22 11:24:38,440 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 104 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 11:24:38,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2019-10-22 11:24:38,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 158. [2019-10-22 11:24:38,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-10-22 11:24:38,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 209 transitions. [2019-10-22 11:24:38,454 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 209 transitions. Word has length 53 [2019-10-22 11:24:38,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:38,455 INFO L462 AbstractCegarLoop]: Abstraction has 158 states and 209 transitions. [2019-10-22 11:24:38,455 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:24:38,455 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 209 transitions. [2019-10-22 11:24:38,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-22 11:24:38,456 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:38,456 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:38,657 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:24:38,657 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:38,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:38,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1437514545, now seen corresponding path program 1 times [2019-10-22 11:24:38,658 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:24:38,658 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [676672041] [2019-10-22 11:24:38,658 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4fba7c49-94a2-40fb-b018-cd192626de3b/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 11:24:38,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:38,803 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-22 11:24:38,804 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:24:38,851 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 11:24:38,851 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:24:38,897 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 11:24:38,898 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [676672041] [2019-10-22 11:24:38,898 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508748973] [2019-10-22 11:24:38,898 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4fba7c49-94a2-40fb-b018-cd192626de3b/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 11:24:39,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:39,017 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-22 11:24:39,019 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:24:39,053 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 11:24:39,053 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:24:39,065 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 11:24:39,070 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-22 11:24:39,070 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5] total 9 [2019-10-22 11:24:39,070 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502994327] [2019-10-22 11:24:39,071 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-22 11:24:39,071 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:24:39,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-22 11:24:39,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-10-22 11:24:39,071 INFO L87 Difference]: Start difference. First operand 158 states and 209 transitions. Second operand 10 states. [2019-10-22 11:24:39,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:39,903 INFO L93 Difference]: Finished difference Result 1034 states and 1405 transitions. [2019-10-22 11:24:39,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-22 11:24:39,904 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 55 [2019-10-22 11:24:39,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:39,907 INFO L225 Difference]: With dead ends: 1034 [2019-10-22 11:24:39,907 INFO L226 Difference]: Without dead ends: 906 [2019-10-22 11:24:39,908 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 206 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 11:24:39,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2019-10-22 11:24:39,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 283. [2019-10-22 11:24:39,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2019-10-22 11:24:39,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 383 transitions. [2019-10-22 11:24:39,941 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 383 transitions. Word has length 55 [2019-10-22 11:24:39,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:39,942 INFO L462 AbstractCegarLoop]: Abstraction has 283 states and 383 transitions. [2019-10-22 11:24:39,942 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-22 11:24:39,942 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 383 transitions. [2019-10-22 11:24:39,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-10-22 11:24:39,943 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:39,943 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, 1, 1, 1] [2019-10-22 11:24:40,344 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 11:24:40,344 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:40,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:40,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1916895271, now seen corresponding path program 2 times [2019-10-22 11:24:40,345 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:24:40,345 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2036010691] [2019-10-22 11:24:40,345 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4fba7c49-94a2-40fb-b018-cd192626de3b/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 11:24:41,959 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-22 11:24:41,959 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-22 11:24:41,999 INFO L256 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-22 11:24:42,001 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:24:42,042 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:24:42,067 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 11:24:42,067 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:24:42,107 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 11:24:42,107 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2036010691] [2019-10-22 11:24:42,108 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:42,108 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2019-10-22 11:24:42,108 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996324647] [2019-10-22 11:24:42,108 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 11:24:42,108 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:24:42,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 11:24:42,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:24:42,109 INFO L87 Difference]: Start difference. First operand 283 states and 383 transitions. Second operand 9 states. [2019-10-22 11:24:43,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:43,025 INFO L93 Difference]: Finished difference Result 1205 states and 1635 transitions. [2019-10-22 11:24:43,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-22 11:24:43,026 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 76 [2019-10-22 11:24:43,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:43,028 INFO L225 Difference]: With dead ends: 1205 [2019-10-22 11:24:43,028 INFO L226 Difference]: Without dead ends: 872 [2019-10-22 11:24:43,029 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 149 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 11:24:43,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2019-10-22 11:24:43,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 341. [2019-10-22 11:24:43,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2019-10-22 11:24:43,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 453 transitions. [2019-10-22 11:24:43,067 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 453 transitions. Word has length 76 [2019-10-22 11:24:43,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:43,068 INFO L462 AbstractCegarLoop]: Abstraction has 341 states and 453 transitions. [2019-10-22 11:24:43,068 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 11:24:43,068 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 453 transitions. [2019-10-22 11:24:43,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-10-22 11:24:43,069 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:43,069 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, 1, 1, 1] [2019-10-22 11:24:43,270 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:24:43,270 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:43,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:43,270 INFO L82 PathProgramCache]: Analyzing trace with hash -2103312411, now seen corresponding path program 1 times [2019-10-22 11:24:43,271 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:24:43,271 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [232745603] [2019-10-22 11:24:43,271 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4fba7c49-94a2-40fb-b018-cd192626de3b/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 11:24:43,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:43,409 INFO L256 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:24:43,411 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:24:43,436 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 11:24:43,438 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:24:43,473 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 11:24:43,474 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [232745603] [2019-10-22 11:24:43,474 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:43,474 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-10-22 11:24:43,474 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391514994] [2019-10-22 11:24:43,475 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:24:43,475 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:24:43,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:24:43,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:24:43,475 INFO L87 Difference]: Start difference. First operand 341 states and 453 transitions. Second operand 8 states. [2019-10-22 11:24:43,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:43,543 INFO L93 Difference]: Finished difference Result 514 states and 676 transitions. [2019-10-22 11:24:43,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:24:43,544 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 76 [2019-10-22 11:24:43,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:43,544 INFO L225 Difference]: With dead ends: 514 [2019-10-22 11:24:43,544 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:24:43,545 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 146 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 11:24:43,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:24:43,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:24:43,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:24:43,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:24:43,545 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2019-10-22 11:24:43,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:43,546 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:24:43,546 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:24:43,546 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:24:43,546 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:24:43,746 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:24:43,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:24:44,041 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 71 [2019-10-22 11:24:44,461 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 100 [2019-10-22 11:24:44,957 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 29 [2019-10-22 11:24:45,347 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 26 [2019-10-22 11:24:45,498 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 22 [2019-10-22 11:24:45,783 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 29 [2019-10-22 11:24:46,054 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 32 [2019-10-22 11:24:46,364 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 29 [2019-10-22 11:24:46,633 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 24 [2019-10-22 11:24:46,930 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 29 [2019-10-22 11:24:46,961 INFO L439 ceAbstractionStarter]: At program point L498(lines 493 501) 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 11:24:46,961 INFO L443 ceAbstractionStarter]: For program point L368(lines 368 372) no Hoare annotation was computed. [2019-10-22 11:24:46,961 INFO L443 ceAbstractionStarter]: For program point L368-3(lines 368 372) no Hoare annotation was computed. [2019-10-22 11:24:46,962 INFO L443 ceAbstractionStarter]: For program point L368-6(lines 368 372) no Hoare annotation was computed. [2019-10-22 11:24:46,962 INFO L443 ceAbstractionStarter]: For program point L304(lines 304 308) no Hoare annotation was computed. [2019-10-22 11:24:46,962 INFO L443 ceAbstractionStarter]: For program point L304-2(lines 304 308) no Hoare annotation was computed. [2019-10-22 11:24:46,962 INFO L443 ceAbstractionStarter]: For program point L304-3(lines 304 308) no Hoare annotation was computed. [2019-10-22 11:24:46,962 INFO L443 ceAbstractionStarter]: For program point L304-5(lines 304 308) no Hoare annotation was computed. [2019-10-22 11:24:46,962 INFO L443 ceAbstractionStarter]: For program point L304-6(lines 304 308) no Hoare annotation was computed. [2019-10-22 11:24:46,962 INFO L443 ceAbstractionStarter]: For program point L304-8(lines 304 308) no Hoare annotation was computed. [2019-10-22 11:24:46,962 INFO L443 ceAbstractionStarter]: For program point L304-9(lines 304 308) no Hoare annotation was computed. [2019-10-22 11:24:46,962 INFO L443 ceAbstractionStarter]: For program point L304-11(lines 304 308) no Hoare annotation was computed. [2019-10-22 11:24:46,963 INFO L443 ceAbstractionStarter]: For program point L304-12(lines 304 308) no Hoare annotation was computed. [2019-10-22 11:24:46,963 INFO L443 ceAbstractionStarter]: For program point L304-14(lines 304 308) no Hoare annotation was computed. [2019-10-22 11:24:46,963 INFO L443 ceAbstractionStarter]: For program point L304-15(lines 304 308) no Hoare annotation was computed. [2019-10-22 11:24:46,963 INFO L443 ceAbstractionStarter]: For program point L304-17(lines 304 308) no Hoare annotation was computed. [2019-10-22 11:24:46,963 INFO L439 ceAbstractionStarter]: At program point L437(lines 432 440) the Hoare annotation is: (let ((.cse0 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse1 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and (= (_ bv0 32) ~pumpRunning~0) .cse0 .cse1 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) (and (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) .cse0 .cse1))) [2019-10-22 11:24:46,963 INFO L439 ceAbstractionStarter]: At program point L437-1(lines 432 440) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:24:46,963 INFO L439 ceAbstractionStarter]: At program point L437-2(lines 432 440) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:24:46,963 INFO L443 ceAbstractionStarter]: For program point L74(lines 74 80) no Hoare annotation was computed. [2019-10-22 11:24:46,963 INFO L439 ceAbstractionStarter]: At program point L74-1(lines 74 80) the Hoare annotation is: (let ((.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32))) (.cse3 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and .cse0 (and (and .cse1 .cse2) .cse3)) (and .cse3 (and .cse1 .cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)))) (and .cse0 (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) .cse3 .cse2 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6 (_ bv0 32)))))) [2019-10-22 11:24:46,964 INFO L439 ceAbstractionStarter]: At program point L405(lines 400 408) the Hoare annotation is: false [2019-10-22 11:24:46,964 INFO L439 ceAbstractionStarter]: At program point L405-1(lines 400 408) the Hoare annotation is: (and (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:24:46,964 INFO L439 ceAbstractionStarter]: At program point L405-2(lines 400 408) the Hoare annotation is: false [2019-10-22 11:24:46,964 INFO L439 ceAbstractionStarter]: At program point L405-3(lines 400 408) the Hoare annotation is: false [2019-10-22 11:24:46,964 INFO L439 ceAbstractionStarter]: At program point L405-4(lines 400 408) the Hoare annotation is: false [2019-10-22 11:24:46,964 INFO L439 ceAbstractionStarter]: At program point L405-5(lines 400 408) the Hoare annotation is: false [2019-10-22 11:24:46,964 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 969) no Hoare annotation was computed. [2019-10-22 11:24:46,964 INFO L443 ceAbstractionStarter]: For program point L969(line 969) no Hoare annotation was computed. [2019-10-22 11:24:46,964 INFO L443 ceAbstractionStarter]: For program point L969-1(line 969) no Hoare annotation was computed. [2019-10-22 11:24:46,964 INFO L443 ceAbstractionStarter]: For program point L969-2(line 969) no Hoare annotation was computed. [2019-10-22 11:24:46,964 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 969) no Hoare annotation was computed. [2019-10-22 11:24:46,964 INFO L439 ceAbstractionStarter]: At program point L310(lines 295 313) the Hoare annotation is: false [2019-10-22 11:24:46,965 INFO L439 ceAbstractionStarter]: At program point L310-1(lines 295 313) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv4294967295 32)) (_ bv0 32)) .cse0 .cse1 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv0 32)) .cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (and (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) .cse0 .cse1 .cse2))) [2019-10-22 11:24:46,965 INFO L439 ceAbstractionStarter]: At program point L310-2(lines 295 313) the Hoare annotation is: false [2019-10-22 11:24:46,965 INFO L439 ceAbstractionStarter]: At program point L310-3(lines 295 313) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (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)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:24:46,965 INFO L439 ceAbstractionStarter]: At program point L310-4(lines 295 313) the Hoare annotation is: false [2019-10-22 11:24:46,965 INFO L439 ceAbstractionStarter]: At program point L310-5(lines 295 313) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (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)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:24:46,965 INFO L443 ceAbstractionStarter]: For program point L344(lines 344 357) no Hoare annotation was computed. [2019-10-22 11:24:46,965 INFO L439 ceAbstractionStarter]: At program point L344-1(lines 1 972) the Hoare annotation is: (let ((.cse0 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse1 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and .cse0 (and (= (_ bv0 32) ~pumpRunning~0) .cse1 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)))) (and (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) .cse0 .cse1 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6 (_ bv0 32)))))) [2019-10-22 11:24:46,965 INFO L443 ceAbstractionStarter]: For program point L344-2(lines 344 357) no Hoare annotation was computed. [2019-10-22 11:24:46,965 INFO L439 ceAbstractionStarter]: At program point L344-3(lines 1 972) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:24:46,966 INFO L443 ceAbstractionStarter]: For program point L344-4(lines 344 357) no Hoare annotation was computed. [2019-10-22 11:24:46,966 INFO L439 ceAbstractionStarter]: At program point L344-5(lines 1 972) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:24:46,966 INFO L439 ceAbstractionStarter]: At program point L246(lines 239 249) the Hoare annotation is: false [2019-10-22 11:24:46,966 INFO L439 ceAbstractionStarter]: At program point L246-1(lines 239 249) the Hoare annotation is: (and (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:24:46,966 INFO L439 ceAbstractionStarter]: At program point L246-2(lines 239 249) the Hoare annotation is: false [2019-10-22 11:24:46,966 INFO L439 ceAbstractionStarter]: At program point L246-3(lines 239 249) the Hoare annotation is: false [2019-10-22 11:24:46,967 INFO L439 ceAbstractionStarter]: At program point L246-4(lines 239 249) the Hoare annotation is: false [2019-10-22 11:24:46,967 INFO L439 ceAbstractionStarter]: At program point L246-5(lines 239 249) the Hoare annotation is: false [2019-10-22 11:24:46,967 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 969) no Hoare annotation was computed. [2019-10-22 11:24:46,967 INFO L443 ceAbstractionStarter]: For program point L445(lines 445 451) no Hoare annotation was computed. [2019-10-22 11:24:46,967 INFO L443 ceAbstractionStarter]: For program point L445-1(lines 445 451) no Hoare annotation was computed. [2019-10-22 11:24:46,967 INFO L443 ceAbstractionStarter]: For program point L445-2(lines 445 451) no Hoare annotation was computed. [2019-10-22 11:24:46,967 INFO L443 ceAbstractionStarter]: For program point L445-3(lines 445 451) no Hoare annotation was computed. [2019-10-22 11:24:46,967 INFO L443 ceAbstractionStarter]: For program point L445-4(lines 445 451) no Hoare annotation was computed. [2019-10-22 11:24:46,967 INFO L443 ceAbstractionStarter]: For program point L445-5(lines 445 451) no Hoare annotation was computed. [2019-10-22 11:24:46,967 INFO L443 ceAbstractionStarter]: For program point L380(lines 380 384) no Hoare annotation was computed. [2019-10-22 11:24:46,968 INFO L443 ceAbstractionStarter]: For program point L348(lines 348 354) no Hoare annotation was computed. [2019-10-22 11:24:46,968 INFO L443 ceAbstractionStarter]: For program point L348-2(lines 348 354) no Hoare annotation was computed. [2019-10-22 11:24:46,968 INFO L443 ceAbstractionStarter]: For program point L348-4(lines 348 354) no Hoare annotation was computed. [2019-10-22 11:24:46,968 INFO L443 ceAbstractionStarter]: For program point L84(lines 84 95) no Hoare annotation was computed. [2019-10-22 11:24:46,968 INFO L439 ceAbstractionStarter]: At program point L514-2(lines 514 528) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:24:46,968 INFO L443 ceAbstractionStarter]: For program point L184(lines 184 201) no Hoare annotation was computed. [2019-10-22 11:24:46,968 INFO L443 ceAbstractionStarter]: For program point L184-1(lines 184 201) no Hoare annotation was computed. [2019-10-22 11:24:46,968 INFO L443 ceAbstractionStarter]: For program point L184-2(lines 184 201) no Hoare annotation was computed. [2019-10-22 11:24:46,968 INFO L443 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2019-10-22 11:24:46,968 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:24:46,968 INFO L439 ceAbstractionStarter]: At program point L450(lines 441 454) the Hoare annotation is: false [2019-10-22 11:24:46,968 INFO L439 ceAbstractionStarter]: At program point L450-1(lines 441 454) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) .cse0 .cse1 .cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (and (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) .cse0 .cse1 .cse2))) [2019-10-22 11:24:46,968 INFO L439 ceAbstractionStarter]: At program point L450-2(lines 441 454) the Hoare annotation is: false [2019-10-22 11:24:46,968 INFO L439 ceAbstractionStarter]: At program point L450-3(lines 441 454) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:24:46,968 INFO L439 ceAbstractionStarter]: At program point L450-4(lines 441 454) the Hoare annotation is: false [2019-10-22 11:24:46,968 INFO L439 ceAbstractionStarter]: At program point L450-5(lines 441 454) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:24:46,968 INFO L443 ceAbstractionStarter]: For program point L55(lines 54 99) no Hoare annotation was computed. [2019-10-22 11:24:46,968 INFO L443 ceAbstractionStarter]: For program point L518(lines 518 522) no Hoare annotation was computed. [2019-10-22 11:24:46,969 INFO L443 ceAbstractionStarter]: For program point L518-1(lines 126 132) no Hoare annotation was computed. [2019-10-22 11:24:46,969 INFO L443 ceAbstractionStarter]: For program point L221(lines 221 227) no Hoare annotation was computed. [2019-10-22 11:24:46,969 INFO L443 ceAbstractionStarter]: For program point L188(lines 188 196) no Hoare annotation was computed. [2019-10-22 11:24:46,969 INFO L443 ceAbstractionStarter]: For program point L221-2(lines 221 227) no Hoare annotation was computed. [2019-10-22 11:24:46,969 INFO L443 ceAbstractionStarter]: For program point L188-1(lines 188 196) no Hoare annotation was computed. [2019-10-22 11:24:46,969 INFO L443 ceAbstractionStarter]: For program point L188-2(lines 188 196) no Hoare annotation was computed. [2019-10-22 11:24:46,969 INFO L443 ceAbstractionStarter]: For program point L221-4(lines 221 227) no Hoare annotation was computed. [2019-10-22 11:24:46,969 INFO L443 ceAbstractionStarter]: For program point L56(lines 56 60) no Hoare annotation was computed. [2019-10-22 11:24:46,969 INFO L443 ceAbstractionStarter]: For program point L221-6(lines 221 227) no Hoare annotation was computed. [2019-10-22 11:24:46,969 INFO L443 ceAbstractionStarter]: For program point L221-8(lines 221 227) no Hoare annotation was computed. [2019-10-22 11:24:46,969 INFO L443 ceAbstractionStarter]: For program point L221-10(lines 221 227) no Hoare annotation was computed. [2019-10-22 11:24:46,969 INFO L443 ceAbstractionStarter]: For program point L585(lines 585 592) no Hoare annotation was computed. [2019-10-22 11:24:46,969 INFO L446 ceAbstractionStarter]: At program point L585-1(lines 585 592) the Hoare annotation is: true [2019-10-22 11:24:46,969 INFO L439 ceAbstractionStarter]: At program point L255(lines 250 258) the Hoare annotation is: false [2019-10-22 11:24:46,969 INFO L439 ceAbstractionStarter]: At program point L255-1(lines 250 258) the Hoare annotation is: false [2019-10-22 11:24:46,969 INFO L439 ceAbstractionStarter]: At program point L255-2(lines 250 258) the Hoare annotation is: false [2019-10-22 11:24:46,970 INFO L443 ceAbstractionStarter]: For program point L90(lines 90 94) no Hoare annotation was computed. [2019-10-22 11:24:46,970 INFO L443 ceAbstractionStarter]: For program point L90-2(lines 126 132) no Hoare annotation was computed. [2019-10-22 11:24:46,970 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:24:46,970 INFO L443 ceAbstractionStarter]: For program point L323(lines 323 327) no Hoare annotation was computed. [2019-10-22 11:24:46,970 INFO L443 ceAbstractionStarter]: For program point L323-2(lines 323 327) no Hoare annotation was computed. [2019-10-22 11:24:46,970 INFO L443 ceAbstractionStarter]: For program point L323-3(lines 323 327) no Hoare annotation was computed. [2019-10-22 11:24:46,970 INFO L443 ceAbstractionStarter]: For program point L158(lines 158 175) no Hoare annotation was computed. [2019-10-22 11:24:46,970 INFO L443 ceAbstractionStarter]: For program point L323-5(lines 323 327) no Hoare annotation was computed. [2019-10-22 11:24:46,970 INFO L443 ceAbstractionStarter]: For program point L158-1(lines 158 175) no Hoare annotation was computed. [2019-10-22 11:24:46,970 INFO L443 ceAbstractionStarter]: For program point L323-6(lines 323 327) no Hoare annotation was computed. [2019-10-22 11:24:46,970 INFO L443 ceAbstractionStarter]: For program point L158-2(lines 158 175) no Hoare annotation was computed. [2019-10-22 11:24:46,970 INFO L443 ceAbstractionStarter]: For program point L158-3(lines 158 175) no Hoare annotation was computed. [2019-10-22 11:24:46,970 INFO L443 ceAbstractionStarter]: For program point L323-8(lines 323 327) no Hoare annotation was computed. [2019-10-22 11:24:46,971 INFO L443 ceAbstractionStarter]: For program point L158-4(lines 158 175) no Hoare annotation was computed. [2019-10-22 11:24:46,971 INFO L443 ceAbstractionStarter]: For program point L158-5(lines 158 175) no Hoare annotation was computed. [2019-10-22 11:24:46,971 INFO L439 ceAbstractionStarter]: At program point L126(lines 125 144) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse2 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse1 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse3 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) (and (and .cse0 .cse1) .cse2)) (and .cse2 (and .cse0 .cse1 .cse3)) (and (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) .cse2 .cse1 .cse3 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6 (_ bv0 32)))))) [2019-10-22 11:24:46,971 INFO L443 ceAbstractionStarter]: For program point L126-1(lines 126 132) no Hoare annotation was computed. [2019-10-22 11:24:46,971 INFO L439 ceAbstractionStarter]: At program point L126-2(lines 125 144) 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 11:24:46,971 INFO L439 ceAbstractionStarter]: At program point L126-3(lines 125 144) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:24:46,971 INFO L439 ceAbstractionStarter]: At program point L490(lines 1 972) 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 11:24:46,971 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:24:46,972 INFO L443 ceAbstractionStarter]: For program point L392(lines 392 396) no Hoare annotation was computed. [2019-10-22 11:24:46,972 INFO L443 ceAbstractionStarter]: For program point L162(lines 162 170) no Hoare annotation was computed. [2019-10-22 11:24:46,972 INFO L443 ceAbstractionStarter]: For program point L162-1(lines 162 170) no Hoare annotation was computed. [2019-10-22 11:24:46,972 INFO L443 ceAbstractionStarter]: For program point L162-2(lines 162 170) no Hoare annotation was computed. [2019-10-22 11:24:46,972 INFO L443 ceAbstractionStarter]: For program point L162-3(lines 162 170) no Hoare annotation was computed. [2019-10-22 11:24:46,972 INFO L443 ceAbstractionStarter]: For program point L162-4(lines 162 170) no Hoare annotation was computed. [2019-10-22 11:24:46,972 INFO L443 ceAbstractionStarter]: For program point L162-5(lines 162 170) no Hoare annotation was computed. [2019-10-22 11:24:46,972 INFO L439 ceAbstractionStarter]: At program point L460(lines 455 463) the Hoare annotation is: (and (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32)) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6 (_ bv0 32)))) [2019-10-22 11:24:46,972 INFO L439 ceAbstractionStarter]: At program point L460-1(lines 455 463) the Hoare annotation is: false [2019-10-22 11:24:46,972 INFO L439 ceAbstractionStarter]: At program point L460-2(lines 455 463) the Hoare annotation is: false [2019-10-22 11:24:46,972 INFO L443 ceAbstractionStarter]: For program point L64(lines 64 70) no Hoare annotation was computed. [2019-10-22 11:24:46,972 INFO L439 ceAbstractionStarter]: At program point L64-1(lines 64 70) the Hoare annotation is: (let ((.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32))) (.cse3 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and .cse0 (and (and .cse1 .cse2) .cse3)) (and .cse3 (and .cse1 .cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)))) (and .cse0 (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) .cse3 .cse2 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6 (_ bv0 32)))))) [2019-10-22 11:24:46,973 INFO L439 ceAbstractionStarter]: At program point L329(lines 314 332) the Hoare annotation is: (and (= (bvadd ULTIMATE.start_isLowWaterLevel_~tmp___0~2 (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start_isLowWaterLevel_~tmp~5 (_ bv0 32)) (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32)) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd |ULTIMATE.start_isLowWaterLevel_#res| (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6 (_ bv0 32)))) [2019-10-22 11:24:46,973 INFO L439 ceAbstractionStarter]: At program point L329-1(lines 314 332) the Hoare annotation is: false [2019-10-22 11:24:46,973 INFO L439 ceAbstractionStarter]: At program point L329-2(lines 314 332) the Hoare annotation is: false [2019-10-22 11:24:46,973 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 11:24:46,973 INFO L446 ceAbstractionStarter]: At program point L594(lines 575 597) the Hoare annotation is: true [2019-10-22 11:24:46,973 INFO L439 ceAbstractionStarter]: At program point L562(lines 558 564) 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 11:24:46,973 INFO L439 ceAbstractionStarter]: At program point L133(lines 133 139) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse3 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse1 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) .cse0 .cse1 .cse2 .cse3 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6 (_ bv0 32)))) (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv4294967295 32)) (_ bv0 32)) .cse0 .cse1 .cse2 .cse3) (and (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) .cse1 .cse2))) [2019-10-22 11:24:46,973 INFO L439 ceAbstractionStarter]: At program point L100(lines 53 101) 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 11:24:46,973 INFO L439 ceAbstractionStarter]: At program point L133-1(lines 133 139) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:24:46,974 INFO L439 ceAbstractionStarter]: At program point L133-2(lines 133 139) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:24:46,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:24:46 BoogieIcfgContainer [2019-10-22 11:24:46,997 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:24:46,998 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:24:46,998 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:24:46,998 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:24:46,999 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:33" (3/4) ... [2019-10-22 11:24:47,002 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:24:47,016 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2019-10-22 11:24:47,017 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2019-10-22 11:24:47,018 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-10-22 11:24:47,018 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 11:24:47,019 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 11:24:47,019 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 11:24:47,047 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~bvslt32(splverifierCounter, 4bv32) && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) [2019-10-22 11:24:47,047 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) || (~bvslt32(splverifierCounter, 4bv32) && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) [2019-10-22 11:24:47,047 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 [2019-10-22 11:24:47,047 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) || (~bvslt32(splverifierCounter, 4bv32) && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) [2019-10-22 11:24:47,048 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) || (~bvslt32(splverifierCounter, 4bv32) && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((((!(0bv32 == \result) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) [2019-10-22 11:24:47,048 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(0bv32 == \result) && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) || (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) [2019-10-22 11:24:47,048 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:24:47,048 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:24:47,048 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:24:47,049 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) || (((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) [2019-10-22 11:24:47,049 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((1bv32 == \result && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 [2019-10-22 11:24:47,049 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:24:47,049 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:24:47,049 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(0bv32 == \result) && ~bvslt32(splverifierCounter, 4bv32)) && \result == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && !(tmp == 0bv32) [2019-10-22 11:24:47,050 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && \result == 0bv32) && tmp___0 == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 [2019-10-22 11:24:47,050 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1bv32 == \result && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) [2019-10-22 11:24:47,051 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:24:47,051 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((~bvadd64(tmp___0, 4294967295bv32) == 0bv32 && tmp == 0bv32) && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && \result == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && !(tmp == 0bv32) [2019-10-22 11:24:47,051 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:24:47,051 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && \result == 0bv32) && tmp___0 == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) [2019-10-22 11:24:47,052 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1bv32 == \result && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:24:47,052 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && \result == 0bv32) && tmp___0 == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:24:47,112 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4fba7c49-94a2-40fb-b018-cd192626de3b/bin/utaipan/witness.graphml [2019-10-22 11:24:47,113 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:24:47,115 INFO L168 Benchmark]: Toolchain (without parser) took 14914.56 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 368.6 MB). Free memory was 952.3 MB in the beginning and 1.3 GB in the end (delta: -314.9 MB). Peak memory consumption was 53.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:47,115 INFO L168 Benchmark]: CDTParser took 0.16 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 11:24:47,115 INFO L168 Benchmark]: CACSL2BoogieTranslator took 552.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -194.9 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:47,115 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.30 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:47,116 INFO L168 Benchmark]: Boogie Preprocessor took 54.92 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:24:47,116 INFO L168 Benchmark]: RCFGBuilder took 958.31 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: 69.5 MB). Peak memory consumption was 69.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:47,116 INFO L168 Benchmark]: TraceAbstraction took 13171.94 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 207.6 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -211.3 MB). Peak memory consumption was 360.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:47,117 INFO L168 Benchmark]: Witness Printer took 115.79 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:47,118 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 552.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -194.9 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 56.30 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.92 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 958.31 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: 69.5 MB). Peak memory consumption was 69.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 13171.94 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 207.6 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -211.3 MB). Peak memory consumption was 360.0 MB. Max. memory is 11.5 GB. * Witness Printer took 115.79 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 969]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 969]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 969]: 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: 455]: Loop Invariant Derived loop invariant: ((((!(0bv32 == \result) && ~bvslt32(splverifierCounter, 4bv32)) && \result == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && !(tmp == 0bv32) - InvariantResult [Line: 295]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 455]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 295]: Loop Invariant Derived loop invariant: (((((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && \result == 0bv32) && tmp___0 == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) - InvariantResult [Line: 400]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 455]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 250]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 314]: Loop Invariant Derived loop invariant: (((((((~bvadd64(tmp___0, 4294967295bv32) == 0bv32 && tmp == 0bv32) && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && \result == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && !(tmp == 0bv32) - InvariantResult [Line: 441]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 314]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 441]: Loop Invariant Derived loop invariant: ((((1bv32 == \result && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 314]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 441]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 239]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (~bvslt32(splverifierCounter, 4bv32) && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) - InvariantResult [Line: 441]: Loop Invariant Derived loop invariant: ((((1bv32 == \result && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) - InvariantResult [Line: 239]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 441]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 239]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 74]: Loop Invariant Derived loop invariant: ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) || (~bvslt32(splverifierCounter, 4bv32) && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) - InvariantResult [Line: 441]: Loop Invariant Derived loop invariant: ((1bv32 == \result && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 239]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 493]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: ((((((!(0bv32 == \result) && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) || (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) || (~bvslt32(splverifierCounter, 4bv32) && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((((!(0bv32 == \result) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) - InvariantResult [Line: 432]: Loop Invariant Derived loop invariant: ((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 239]: Loop Invariant Derived loop invariant: ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32 - InvariantResult [Line: 432]: Loop Invariant Derived loop invariant: ((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 239]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 575]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: (((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 250]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 514]: Loop Invariant Derived loop invariant: (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 250]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 432]: Loop Invariant Derived loop invariant: ((((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) || (((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) || (~bvslt32(splverifierCounter, 4bv32) && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) - InvariantResult [Line: 295]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 400]: Loop Invariant Derived loop invariant: ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32 - InvariantResult [Line: 295]: Loop Invariant Derived loop invariant: (((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && \result == 0bv32) && tmp___0 == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 400]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 558]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 400]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 295]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 295]: Loop Invariant Derived loop invariant: (((((((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && \result == 0bv32) && tmp___0 == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 400]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 400]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 135 locations, 3 error locations. Result: SAFE, OverallTime: 13.0s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.2s, HoareTripleCheckerStatistics: 1913 SDtfs, 4981 SDslu, 4790 SDs, 0 SdLazy, 909 SolverSat, 247 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1096 GetRequests, 1005 SyntacticMatches, 2 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=460occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 2443 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 54 LocationsWithAnnotation, 54 PreInvPairs, 156 NumberOfFragments, 934 HoareAnnotationTreeSize, 54 FomulaSimplifications, 228758 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 54 FomulaSimplificationsInter, 15643 FormulaSimplificationTreeSizeReductionInter, 2.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 529 NumberOfCodeBlocks, 529 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1034 ConstructedInterpolants, 0 QuantifiedInterpolants, 112445 SizeOfPredicates, 39 NumberOfNonLiveVariables, 2570 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 24 InterpolantComputations, 20 PerfectInterpolantSequences, 264/300 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...