./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product59.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_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product59.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/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 5a35b365de7365eb1088366c2b8165f4a523d787 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product59.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/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 5a35b365de7365eb1088366c2b8165f4a523d787 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:25:47,336 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:25:47,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:25:47,347 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:25:47,348 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:25:47,348 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:25:47,350 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:25:47,351 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:25:47,352 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:25:47,353 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:25:47,358 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:25:47,358 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:25:47,359 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:25:47,359 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:25:47,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:25:47,361 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:25:47,362 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:25:47,362 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:25:47,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:25:47,368 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:25:47,369 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:25:47,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:25:47,375 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:25:47,377 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:25:47,380 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:25:47,381 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:25:47,382 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:25:47,382 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:25:47,383 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:25:47,383 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:25:47,384 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:25:47,384 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:25:47,385 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:25:47,386 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:25:47,387 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:25:47,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:25:47,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:25:47,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:25:47,388 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:25:47,389 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:25:47,389 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:25:47,390 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:25:47,399 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:25:47,399 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:25:47,400 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:25:47,400 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:25:47,400 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:25:47,401 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:25:47,401 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:25:47,401 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:25:47,401 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:25:47,401 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:25:47,401 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:25:47,402 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:25:47,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:25:47,402 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:25:47,402 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:25:47,402 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:25:47,403 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:25:47,403 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:25:47,403 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:25:47,403 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:25:47,403 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:25:47,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:25:47,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:25:47,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:25:47,404 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:25:47,404 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:25:47,404 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:25:47,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:25:47,404 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:25:47,404 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:25:47,404 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:25:47,405 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:25:47,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:25:47,405 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:25:47,405 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:25:47,406 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_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/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 -> 5a35b365de7365eb1088366c2b8165f4a523d787 [2019-10-22 11:25:47,436 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:25:47,453 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:25:47,456 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:25:47,461 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:25:47,461 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:25:47,462 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product59.cil.c [2019-10-22 11:25:47,506 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/bin/utaipan/data/2136e3365/3731db1154a249689a9f41dba04114fe/FLAGaf2ff3f2d [2019-10-22 11:25:47,930 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:25:47,930 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/sv-benchmarks/c/product-lines/minepump_spec4_product59.cil.c [2019-10-22 11:25:47,943 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/bin/utaipan/data/2136e3365/3731db1154a249689a9f41dba04114fe/FLAGaf2ff3f2d [2019-10-22 11:25:48,293 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/bin/utaipan/data/2136e3365/3731db1154a249689a9f41dba04114fe [2019-10-22 11:25:48,295 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:25:48,296 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:25:48,297 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:48,297 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:25:48,301 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:25:48,302 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:48" (1/1) ... [2019-10-22 11:25:48,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@114fe62c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:48, skipping insertion in model container [2019-10-22 11:25:48,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:48" (1/1) ... [2019-10-22 11:25:48,311 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:25:48,348 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:25:48,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:48,795 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:25:48,893 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:48,929 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:25:48,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:48 WrapperNode [2019-10-22 11:25:48,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:48,931 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:48,931 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:25:48,931 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:25:48,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:48" (1/1) ... [2019-10-22 11:25:48,956 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:48" (1/1) ... [2019-10-22 11:25:49,034 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:49,041 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:25:49,041 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:25:49,041 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:25:49,052 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:48" (1/1) ... [2019-10-22 11:25:49,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:48" (1/1) ... [2019-10-22 11:25:49,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:48" (1/1) ... [2019-10-22 11:25:49,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:48" (1/1) ... [2019-10-22 11:25:49,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:48" (1/1) ... [2019-10-22 11:25:49,111 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:48" (1/1) ... [2019-10-22 11:25:49,114 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:48" (1/1) ... [2019-10-22 11:25:49,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:25:49,119 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:25:49,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:25:49,120 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:25:49,121 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:25:49,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:25:49,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 11:25:49,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:25:49,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:25:50,005 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:25:50,006 INFO L284 CfgBuilder]: Removed 196 assume(true) statements. [2019-10-22 11:25:50,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:50 BoogieIcfgContainer [2019-10-22 11:25:50,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:25:50,008 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:25:50,008 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:25:50,011 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:25:50,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:25:48" (1/3) ... [2019-10-22 11:25:50,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7221656f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:50, skipping insertion in model container [2019-10-22 11:25:50,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:48" (2/3) ... [2019-10-22 11:25:50,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7221656f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:50, skipping insertion in model container [2019-10-22 11:25:50,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:50" (3/3) ... [2019-10-22 11:25:50,015 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product59.cil.c [2019-10-22 11:25:50,025 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:25:50,032 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:25:50,046 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:25:50,066 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:25:50,066 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:25:50,066 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:25:50,066 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:25:50,066 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:25:50,066 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:25:50,067 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:25:50,067 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:25:50,081 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states. [2019-10-22 11:25:50,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 11:25:50,087 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:50,088 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:50,090 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:50,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:50,095 INFO L82 PathProgramCache]: Analyzing trace with hash 998639577, now seen corresponding path program 1 times [2019-10-22 11:25:50,103 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:50,103 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182762312] [2019-10-22 11:25:50,103 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:50,104 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:50,104 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:50,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:50,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:50,284 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182762312] [2019-10-22 11:25:50,284 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:50,285 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:25:50,285 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336962048] [2019-10-22 11:25:50,288 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:25:50,290 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:50,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:25:50,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:25:50,302 INFO L87 Difference]: Start difference. First operand 137 states. Second operand 2 states. [2019-10-22 11:25:50,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:50,330 INFO L93 Difference]: Finished difference Result 268 states and 401 transitions. [2019-10-22 11:25:50,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:25:50,331 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-10-22 11:25:50,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:50,343 INFO L225 Difference]: With dead ends: 268 [2019-10-22 11:25:50,343 INFO L226 Difference]: Without dead ends: 133 [2019-10-22 11:25:50,346 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:25:50,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2019-10-22 11:25:50,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2019-10-22 11:25:50,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2019-10-22 11:25:50,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 192 transitions. [2019-10-22 11:25:50,388 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 192 transitions. Word has length 16 [2019-10-22 11:25:50,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:50,389 INFO L462 AbstractCegarLoop]: Abstraction has 133 states and 192 transitions. [2019-10-22 11:25:50,389 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:25:50,389 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 192 transitions. [2019-10-22 11:25:50,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 11:25:50,390 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:50,390 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 11:25:50,390 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:50,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:50,391 INFO L82 PathProgramCache]: Analyzing trace with hash -48117320, now seen corresponding path program 1 times [2019-10-22 11:25:50,391 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:50,391 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522175628] [2019-10-22 11:25:50,391 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:50,391 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:50,391 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:50,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:50,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:50,487 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522175628] [2019-10-22 11:25:50,487 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:50,487 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:25:50,488 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803675270] [2019-10-22 11:25:50,489 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:25:50,489 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:50,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:25:50,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:25:50,490 INFO L87 Difference]: Start difference. First operand 133 states and 192 transitions. Second operand 3 states. [2019-10-22 11:25:50,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:50,504 INFO L93 Difference]: Finished difference Result 133 states and 192 transitions. [2019-10-22 11:25:50,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:25:50,505 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-10-22 11:25:50,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:50,506 INFO L225 Difference]: With dead ends: 133 [2019-10-22 11:25:50,506 INFO L226 Difference]: Without dead ends: 55 [2019-10-22 11:25:50,507 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:25:50,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-10-22 11:25:50,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2019-10-22 11:25:50,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-10-22 11:25:50,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 79 transitions. [2019-10-22 11:25:50,513 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 79 transitions. Word has length 17 [2019-10-22 11:25:50,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:50,513 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 79 transitions. [2019-10-22 11:25:50,513 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:25:50,514 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 79 transitions. [2019-10-22 11:25:50,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 11:25:50,514 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:50,514 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 11:25:50,515 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:50,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:50,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1725162559, now seen corresponding path program 1 times [2019-10-22 11:25:50,515 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:50,515 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902362850] [2019-10-22 11:25:50,516 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:50,516 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:50,516 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:50,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:50,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:50,634 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902362850] [2019-10-22 11:25:50,634 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:50,634 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:25:50,635 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134315286] [2019-10-22 11:25:50,635 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:25:50,635 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:50,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:25:50,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:25:50,636 INFO L87 Difference]: Start difference. First operand 55 states and 79 transitions. Second operand 6 states. [2019-10-22 11:25:50,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:50,741 INFO L93 Difference]: Finished difference Result 176 states and 259 transitions. [2019-10-22 11:25:50,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:25:50,741 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2019-10-22 11:25:50,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:50,743 INFO L225 Difference]: With dead ends: 176 [2019-10-22 11:25:50,743 INFO L226 Difference]: Without dead ends: 127 [2019-10-22 11:25:50,743 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 11:25:50,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2019-10-22 11:25:50,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 74. [2019-10-22 11:25:50,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-10-22 11:25:50,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 108 transitions. [2019-10-22 11:25:50,753 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 108 transitions. Word has length 22 [2019-10-22 11:25:50,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:50,754 INFO L462 AbstractCegarLoop]: Abstraction has 74 states and 108 transitions. [2019-10-22 11:25:50,754 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:25:50,754 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 108 transitions. [2019-10-22 11:25:50,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 11:25:50,755 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:50,755 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 11:25:50,755 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:50,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:50,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1536171928, now seen corresponding path program 1 times [2019-10-22 11:25:50,755 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:50,756 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985849864] [2019-10-22 11:25:50,756 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:50,756 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:50,756 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:50,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:50,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:50,848 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985849864] [2019-10-22 11:25:50,848 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:50,848 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:25:50,848 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646761055] [2019-10-22 11:25:50,849 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:25:50,849 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:50,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:25:50,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:25:50,849 INFO L87 Difference]: Start difference. First operand 74 states and 108 transitions. Second operand 3 states. [2019-10-22 11:25:50,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:50,908 INFO L93 Difference]: Finished difference Result 163 states and 240 transitions. [2019-10-22 11:25:50,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:25:50,909 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-10-22 11:25:50,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:50,909 INFO L225 Difference]: With dead ends: 163 [2019-10-22 11:25:50,910 INFO L226 Difference]: Without dead ends: 95 [2019-10-22 11:25:50,910 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:25:50,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-10-22 11:25:50,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2019-10-22 11:25:50,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-10-22 11:25:50,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 132 transitions. [2019-10-22 11:25:50,928 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 132 transitions. Word has length 24 [2019-10-22 11:25:50,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:50,928 INFO L462 AbstractCegarLoop]: Abstraction has 93 states and 132 transitions. [2019-10-22 11:25:50,928 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:25:50,929 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 132 transitions. [2019-10-22 11:25:50,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 11:25:50,929 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:50,929 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 11:25:50,930 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:50,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:50,930 INFO L82 PathProgramCache]: Analyzing trace with hash 1391898518, now seen corresponding path program 1 times [2019-10-22 11:25:50,930 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:50,931 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199902360] [2019-10-22 11:25:50,931 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:50,931 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:50,931 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:50,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:51,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:51,023 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199902360] [2019-10-22 11:25:51,024 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:51,024 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:25:51,024 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653938014] [2019-10-22 11:25:51,024 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:25:51,025 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:51,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:25:51,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:25:51,027 INFO L87 Difference]: Start difference. First operand 93 states and 132 transitions. Second operand 5 states. [2019-10-22 11:25:51,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:51,143 INFO L93 Difference]: Finished difference Result 331 states and 477 transitions. [2019-10-22 11:25:51,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:25:51,144 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-10-22 11:25:51,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:51,145 INFO L225 Difference]: With dead ends: 331 [2019-10-22 11:25:51,145 INFO L226 Difference]: Without dead ends: 244 [2019-10-22 11:25:51,146 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 11:25:51,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2019-10-22 11:25:51,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 155. [2019-10-22 11:25:51,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2019-10-22 11:25:51,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 215 transitions. [2019-10-22 11:25:51,164 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 215 transitions. Word has length 25 [2019-10-22 11:25:51,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:51,164 INFO L462 AbstractCegarLoop]: Abstraction has 155 states and 215 transitions. [2019-10-22 11:25:51,164 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:25:51,165 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 215 transitions. [2019-10-22 11:25:51,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 11:25:51,165 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:51,166 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:51,166 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:51,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:51,166 INFO L82 PathProgramCache]: Analyzing trace with hash -567410472, now seen corresponding path program 1 times [2019-10-22 11:25:51,166 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:51,167 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494094740] [2019-10-22 11:25:51,167 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:51,167 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:51,167 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:51,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:51,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:51,234 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494094740] [2019-10-22 11:25:51,234 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:51,234 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:25:51,235 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984011965] [2019-10-22 11:25:51,235 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:25:51,235 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:51,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:25:51,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:25:51,236 INFO L87 Difference]: Start difference. First operand 155 states and 215 transitions. Second operand 5 states. [2019-10-22 11:25:51,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:51,362 INFO L93 Difference]: Finished difference Result 327 states and 462 transitions. [2019-10-22 11:25:51,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:25:51,366 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-10-22 11:25:51,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:51,367 INFO L225 Difference]: With dead ends: 327 [2019-10-22 11:25:51,367 INFO L226 Difference]: Without dead ends: 325 [2019-10-22 11:25:51,368 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:25:51,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2019-10-22 11:25:51,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 155. [2019-10-22 11:25:51,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2019-10-22 11:25:51,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 213 transitions. [2019-10-22 11:25:51,399 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 213 transitions. Word has length 26 [2019-10-22 11:25:51,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:51,400 INFO L462 AbstractCegarLoop]: Abstraction has 155 states and 213 transitions. [2019-10-22 11:25:51,400 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:25:51,400 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 213 transitions. [2019-10-22 11:25:51,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 11:25:51,401 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:51,401 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:51,401 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:51,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:51,402 INFO L82 PathProgramCache]: Analyzing trace with hash -474783860, now seen corresponding path program 1 times [2019-10-22 11:25:51,402 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:51,402 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468753326] [2019-10-22 11:25:51,402 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:51,402 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:51,403 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:51,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:51,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:51,466 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468753326] [2019-10-22 11:25:51,467 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:51,467 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:25:51,467 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250932907] [2019-10-22 11:25:51,467 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:25:51,467 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:51,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:25:51,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:25:51,468 INFO L87 Difference]: Start difference. First operand 155 states and 213 transitions. Second operand 5 states. [2019-10-22 11:25:51,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:51,543 INFO L93 Difference]: Finished difference Result 463 states and 634 transitions. [2019-10-22 11:25:51,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:25:51,543 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2019-10-22 11:25:51,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:51,544 INFO L225 Difference]: With dead ends: 463 [2019-10-22 11:25:51,545 INFO L226 Difference]: Without dead ends: 314 [2019-10-22 11:25:51,545 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:25:51,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2019-10-22 11:25:51,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 164. [2019-10-22 11:25:51,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2019-10-22 11:25:51,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 222 transitions. [2019-10-22 11:25:51,560 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 222 transitions. Word has length 34 [2019-10-22 11:25:51,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:51,560 INFO L462 AbstractCegarLoop]: Abstraction has 164 states and 222 transitions. [2019-10-22 11:25:51,560 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:25:51,560 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 222 transitions. [2019-10-22 11:25:51,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 11:25:51,561 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:51,561 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:51,562 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:51,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:51,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1061589874, now seen corresponding path program 1 times [2019-10-22 11:25:51,562 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:51,562 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577093460] [2019-10-22 11:25:51,562 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:51,563 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:51,563 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:51,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:51,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:51,599 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577093460] [2019-10-22 11:25:51,599 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:51,599 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:25:51,599 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490070342] [2019-10-22 11:25:51,599 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:25:51,600 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:51,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:25:51,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:25:51,600 INFO L87 Difference]: Start difference. First operand 164 states and 222 transitions. Second operand 4 states. [2019-10-22 11:25:51,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:51,650 INFO L93 Difference]: Finished difference Result 382 states and 517 transitions. [2019-10-22 11:25:51,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:25:51,651 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2019-10-22 11:25:51,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:51,652 INFO L225 Difference]: With dead ends: 382 [2019-10-22 11:25:51,652 INFO L226 Difference]: Without dead ends: 224 [2019-10-22 11:25:51,652 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 11:25:51,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2019-10-22 11:25:51,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 145. [2019-10-22 11:25:51,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2019-10-22 11:25:51,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 193 transitions. [2019-10-22 11:25:51,674 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 193 transitions. Word has length 34 [2019-10-22 11:25:51,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:51,674 INFO L462 AbstractCegarLoop]: Abstraction has 145 states and 193 transitions. [2019-10-22 11:25:51,674 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:25:51,675 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 193 transitions. [2019-10-22 11:25:51,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 11:25:51,677 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:51,678 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:51,679 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:51,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:51,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1953513744, now seen corresponding path program 1 times [2019-10-22 11:25:51,679 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:51,679 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387066214] [2019-10-22 11:25:51,680 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:51,680 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:51,680 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:51,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:51,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:51,734 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387066214] [2019-10-22 11:25:51,734 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:51,735 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:25:51,735 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326642163] [2019-10-22 11:25:51,735 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:25:51,735 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:51,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:25:51,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:25:51,736 INFO L87 Difference]: Start difference. First operand 145 states and 193 transitions. Second operand 5 states. [2019-10-22 11:25:51,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:51,845 INFO L93 Difference]: Finished difference Result 380 states and 520 transitions. [2019-10-22 11:25:51,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:25:51,846 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2019-10-22 11:25:51,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:51,847 INFO L225 Difference]: With dead ends: 380 [2019-10-22 11:25:51,847 INFO L226 Difference]: Without dead ends: 283 [2019-10-22 11:25:51,848 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 11:25:51,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2019-10-22 11:25:51,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 205. [2019-10-22 11:25:51,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2019-10-22 11:25:51,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 271 transitions. [2019-10-22 11:25:51,870 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 271 transitions. Word has length 34 [2019-10-22 11:25:51,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:51,870 INFO L462 AbstractCegarLoop]: Abstraction has 205 states and 271 transitions. [2019-10-22 11:25:51,871 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:25:51,871 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 271 transitions. [2019-10-22 11:25:51,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-22 11:25:51,872 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:51,872 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 11:25:51,872 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:51,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:51,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1418553649, now seen corresponding path program 1 times [2019-10-22 11:25:51,873 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:51,873 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504034848] [2019-10-22 11:25:51,873 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:51,873 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:51,874 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:51,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:51,973 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 11:25:51,973 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504034848] [2019-10-22 11:25:51,974 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [355888999] [2019-10-22 11:25:51,974 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:25:52,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:52,100 INFO L256 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:25:52,106 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:25:52,133 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 11:25:52,133 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:25:52,158 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 11:25:52,159 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [22915997] [2019-10-22 11:25:52,166 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 56 [2019-10-22 11:25:52,210 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-10-22 11:25:52,211 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-22 11:25:52,642 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:25:52,642 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: inappropriate decl info IMPLEMENTATION at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.getBoogieVar(NonrelationalStatementProcessor.java:348) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleHavocStatement(NonrelationalStatementProcessor.java:325) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:159) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:138) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:107) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:422) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:413) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:140) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.applyInternally(CompoundDomainPostOperator.java:306) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:131) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.restoreOriginalStateVariables(PoormanCachedPostOperation.java:322) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:120) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateAbstractPost(FixpointEngine.java:249) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateFixpoint(FixpointEngine.java:134) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.run(FixpointEngine.java:105) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.tool.AbstractInterpreter.runWithoutTimeoutAndResults(AbstractInterpreter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.generateFixpoints(CegarAbsIntRunner.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.(CegarAbsIntRunner.java:158) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.getOrConstructRunner(IpTcStrategyModuleAbstractInterpretation.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.construct(IpTcStrategyModuleAbstractInterpretation.java:81) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 11:25:52,648 INFO L168 Benchmark]: Toolchain (without parser) took 4351.38 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 229.6 MB). Free memory was 940.4 MB in the beginning and 1.1 GB in the end (delta: -198.0 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:52,649 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 960.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:52,649 INFO L168 Benchmark]: CACSL2BoogieTranslator took 633.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -183.1 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:52,649 INFO L168 Benchmark]: Boogie Procedure Inliner took 110.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:52,650 INFO L168 Benchmark]: Boogie Preprocessor took 77.79 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:52,650 INFO L168 Benchmark]: RCFGBuilder took 887.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 72.0 MB). Peak memory consumption was 72.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:52,650 INFO L168 Benchmark]: TraceAbstraction took 2638.44 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 90.7 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -97.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:52,652 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 960.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 633.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -183.1 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 110.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 77.79 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 887.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 72.0 MB). Peak memory consumption was 72.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2638.44 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 90.7 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -97.1 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 11:25:54,785 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:25:54,787 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:25:54,796 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:25:54,796 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:25:54,797 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:25:54,798 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:25:54,799 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:25:54,800 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:25:54,801 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:25:54,802 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:25:54,803 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:25:54,803 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:25:54,804 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:25:54,805 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:25:54,806 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:25:54,806 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:25:54,807 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:25:54,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:25:54,810 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:25:54,811 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:25:54,812 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:25:54,812 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:25:54,817 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:25:54,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:25:54,819 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:25:54,819 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:25:54,820 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:25:54,820 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:25:54,820 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:25:54,821 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:25:54,824 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:25:54,825 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:25:54,825 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:25:54,826 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:25:54,826 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:25:54,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:25:54,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:25:54,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:25:54,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:25:54,832 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:25:54,833 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:25:54,848 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:25:54,848 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:25:54,852 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:25:54,852 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:25:54,852 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:25:54,852 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:25:54,852 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:25:54,852 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:25:54,853 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:25:54,853 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:25:54,853 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:25:54,853 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:25:54,854 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:25:54,854 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:25:54,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:25:54,854 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:25:54,854 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:25:54,854 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:25:54,854 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:25:54,854 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:25:54,855 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:25:54,855 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:25:54,855 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:25:54,855 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:25:54,855 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:25:54,855 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:25:54,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:25:54,855 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:25:54,856 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:25:54,856 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:25:54,856 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:25:54,856 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:25:54,856 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:25:54,856 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:25:54,856 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_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/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 -> 5a35b365de7365eb1088366c2b8165f4a523d787 [2019-10-22 11:25:54,897 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:25:54,907 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:25:54,911 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:25:54,912 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:25:54,913 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:25:54,914 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product59.cil.c [2019-10-22 11:25:54,964 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/bin/utaipan/data/900c94cdc/6f5b8fb1f43f41738a61a05df8c6b67d/FLAG4b03fa51f [2019-10-22 11:25:55,429 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:25:55,429 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/sv-benchmarks/c/product-lines/minepump_spec4_product59.cil.c [2019-10-22 11:25:55,439 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/bin/utaipan/data/900c94cdc/6f5b8fb1f43f41738a61a05df8c6b67d/FLAG4b03fa51f [2019-10-22 11:25:55,935 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/bin/utaipan/data/900c94cdc/6f5b8fb1f43f41738a61a05df8c6b67d [2019-10-22 11:25:55,937 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:25:55,939 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:25:55,939 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:55,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:25:55,946 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:25:55,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:55" (1/1) ... [2019-10-22 11:25:55,949 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 11:25:55, skipping insertion in model container [2019-10-22 11:25:55,949 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:55" (1/1) ... [2019-10-22 11:25:55,956 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:25:56,005 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:25:56,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:56,399 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:25:56,482 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:56,515 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:25:56,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:56 WrapperNode [2019-10-22 11:25:56,515 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:56,521 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:56,521 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:25:56,521 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:25:56,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:56" (1/1) ... [2019-10-22 11:25:56,542 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:56" (1/1) ... [2019-10-22 11:25:56,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:56,588 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:25:56,588 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:25:56,588 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:25:56,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:56" (1/1) ... [2019-10-22 11:25:56,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:56" (1/1) ... [2019-10-22 11:25:56,600 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:56" (1/1) ... [2019-10-22 11:25:56,600 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:56" (1/1) ... [2019-10-22 11:25:56,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:56" (1/1) ... [2019-10-22 11:25:56,622 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:56" (1/1) ... [2019-10-22 11:25:56,625 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:56" (1/1) ... [2019-10-22 11:25:56,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:25:56,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:25:56,629 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:25:56,629 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:25:56,630 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:25:56,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:25:56,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-10-22 11:25:56,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:25:56,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:25:57,606 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:25:57,606 INFO L284 CfgBuilder]: Removed 196 assume(true) statements. [2019-10-22 11:25:57,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:57 BoogieIcfgContainer [2019-10-22 11:25:57,607 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:25:57,608 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:25:57,608 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:25:57,612 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:25:57,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:25:55" (1/3) ... [2019-10-22 11:25:57,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1be0ff02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:57, skipping insertion in model container [2019-10-22 11:25:57,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:56" (2/3) ... [2019-10-22 11:25:57,614 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1be0ff02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:57, skipping insertion in model container [2019-10-22 11:25:57,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:57" (3/3) ... [2019-10-22 11:25:57,615 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product59.cil.c [2019-10-22 11:25:57,625 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:25:57,632 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:25:57,643 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:25:57,670 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:25:57,670 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:25:57,671 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:25:57,671 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:25:57,672 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:25:57,672 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:25:57,672 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:25:57,672 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:25:57,688 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states. [2019-10-22 11:25:57,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 11:25:57,695 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:57,696 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:57,697 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:57,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:57,703 INFO L82 PathProgramCache]: Analyzing trace with hash 998639577, now seen corresponding path program 1 times [2019-10-22 11:25:57,713 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:25:57,714 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [176489662] [2019-10-22 11:25:57,714 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/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 11:25:57,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:57,909 INFO L256 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-22 11:25:57,914 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:25:57,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:57,929 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:25:57,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:57,936 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [176489662] [2019-10-22 11:25:57,937 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:57,937 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 11:25:57,937 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952550285] [2019-10-22 11:25:57,941 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:25:57,942 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:25:57,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:25:57,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:25:57,957 INFO L87 Difference]: Start difference. First operand 137 states. Second operand 2 states. [2019-10-22 11:25:57,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:57,994 INFO L93 Difference]: Finished difference Result 268 states and 401 transitions. [2019-10-22 11:25:57,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:25:57,997 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-10-22 11:25:57,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:58,010 INFO L225 Difference]: With dead ends: 268 [2019-10-22 11:25:58,013 INFO L226 Difference]: Without dead ends: 133 [2019-10-22 11:25:58,017 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 11:25:58,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2019-10-22 11:25:58,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2019-10-22 11:25:58,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2019-10-22 11:25:58,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 192 transitions. [2019-10-22 11:25:58,062 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 192 transitions. Word has length 16 [2019-10-22 11:25:58,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:58,062 INFO L462 AbstractCegarLoop]: Abstraction has 133 states and 192 transitions. [2019-10-22 11:25:58,062 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:25:58,062 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 192 transitions. [2019-10-22 11:25:58,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 11:25:58,063 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:58,063 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 11:25:58,264 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:25:58,265 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:58,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:58,265 INFO L82 PathProgramCache]: Analyzing trace with hash -48117320, now seen corresponding path program 1 times [2019-10-22 11:25:58,266 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:25:58,266 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2116236261] [2019-10-22 11:25:58,266 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/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 11:25:58,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:58,421 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:25:58,423 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:25:58,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:58,445 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:25:58,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:58,454 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2116236261] [2019-10-22 11:25:58,454 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:58,454 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-10-22 11:25:58,454 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405564790] [2019-10-22 11:25:58,456 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:25:58,456 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:25:58,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:25:58,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:25:58,457 INFO L87 Difference]: Start difference. First operand 133 states and 192 transitions. Second operand 4 states. [2019-10-22 11:25:58,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:58,557 INFO L93 Difference]: Finished difference Result 436 states and 633 transitions. [2019-10-22 11:25:58,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:25:58,559 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-10-22 11:25:58,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:58,561 INFO L225 Difference]: With dead ends: 436 [2019-10-22 11:25:58,561 INFO L226 Difference]: Without dead ends: 309 [2019-10-22 11:25:58,562 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 11:25:58,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2019-10-22 11:25:58,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 174. [2019-10-22 11:25:58,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2019-10-22 11:25:58,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 252 transitions. [2019-10-22 11:25:58,598 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 252 transitions. Word has length 17 [2019-10-22 11:25:58,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:58,598 INFO L462 AbstractCegarLoop]: Abstraction has 174 states and 252 transitions. [2019-10-22 11:25:58,598 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:25:58,598 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 252 transitions. [2019-10-22 11:25:58,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:25:58,599 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:58,599 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:58,800 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:25:58,800 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:58,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:58,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1731051665, now seen corresponding path program 1 times [2019-10-22 11:25:58,801 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:25:58,801 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [684444639] [2019-10-22 11:25:58,801 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/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 11:25:58,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:58,947 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:25:58,948 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:25:58,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:58,961 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:25:58,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:58,963 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [684444639] [2019-10-22 11:25:58,963 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:58,963 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-22 11:25:58,963 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306898686] [2019-10-22 11:25:58,964 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:25:58,964 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:25:58,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:25:58,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:25:58,965 INFO L87 Difference]: Start difference. First operand 174 states and 252 transitions. Second operand 3 states. [2019-10-22 11:25:59,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:59,117 INFO L93 Difference]: Finished difference Result 387 states and 557 transitions. [2019-10-22 11:25:59,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:25:59,118 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-10-22 11:25:59,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:59,119 INFO L225 Difference]: With dead ends: 387 [2019-10-22 11:25:59,119 INFO L226 Difference]: Without dead ends: 219 [2019-10-22 11:25:59,120 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 11:25:59,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2019-10-22 11:25:59,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 213. [2019-10-22 11:25:59,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2019-10-22 11:25:59,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 295 transitions. [2019-10-22 11:25:59,139 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 295 transitions. Word has length 19 [2019-10-22 11:25:59,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:59,140 INFO L462 AbstractCegarLoop]: Abstraction has 213 states and 295 transitions. [2019-10-22 11:25:59,140 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:25:59,140 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 295 transitions. [2019-10-22 11:25:59,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 11:25:59,141 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:59,141 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 11:25:59,342 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:25:59,342 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:59,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:59,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1391898518, now seen corresponding path program 1 times [2019-10-22 11:25:59,343 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:25:59,343 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [30198769] [2019-10-22 11:25:59,343 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/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 11:25:59,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:59,482 INFO L256 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 11:25:59,483 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:25:59,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:59,518 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:25:59,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:59,555 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [30198769] [2019-10-22 11:25:59,555 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:59,555 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2019-10-22 11:25:59,555 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440459386] [2019-10-22 11:25:59,556 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 11:25:59,556 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:25:59,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 11:25:59,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:25:59,556 INFO L87 Difference]: Start difference. First operand 213 states and 295 transitions. Second operand 9 states. [2019-10-22 11:26:00,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:00,319 INFO L93 Difference]: Finished difference Result 1432 states and 2015 transitions. [2019-10-22 11:26:00,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-22 11:26:00,319 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2019-10-22 11:26:00,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:00,323 INFO L225 Difference]: With dead ends: 1432 [2019-10-22 11:26:00,323 INFO L226 Difference]: Without dead ends: 1225 [2019-10-22 11:26:00,325 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2019-10-22 11:26:00,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1225 states. [2019-10-22 11:26:00,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1225 to 525. [2019-10-22 11:26:00,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 525 states. [2019-10-22 11:26:00,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 705 transitions. [2019-10-22 11:26:00,374 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 705 transitions. Word has length 25 [2019-10-22 11:26:00,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:00,374 INFO L462 AbstractCegarLoop]: Abstraction has 525 states and 705 transitions. [2019-10-22 11:26:00,374 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 11:26:00,374 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 705 transitions. [2019-10-22 11:26:00,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-10-22 11:26:00,378 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:00,378 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:00,582 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:26:00,582 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:00,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:00,582 INFO L82 PathProgramCache]: Analyzing trace with hash 768826487, now seen corresponding path program 1 times [2019-10-22 11:26:00,583 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:00,583 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1306572049] [2019-10-22 11:26:00,583 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/bin/utaipan/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:26:00,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:00,711 INFO L256 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:26:00,712 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:00,732 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-22 11:26:00,733 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:00,736 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-22 11:26:00,736 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1306572049] [2019-10-22 11:26:00,737 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:00,737 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:26:00,737 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674415511] [2019-10-22 11:26:00,737 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:26:00,738 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:00,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:26:00,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:26:00,738 INFO L87 Difference]: Start difference. First operand 525 states and 705 transitions. Second operand 5 states. [2019-10-22 11:26:01,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:01,095 INFO L93 Difference]: Finished difference Result 1237 states and 1685 transitions. [2019-10-22 11:26:01,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:26:01,095 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 40 [2019-10-22 11:26:01,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:01,099 INFO L225 Difference]: With dead ends: 1237 [2019-10-22 11:26:01,099 INFO L226 Difference]: Without dead ends: 1231 [2019-10-22 11:26:01,100 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:26:01,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1231 states. [2019-10-22 11:26:01,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1231 to 525. [2019-10-22 11:26:01,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 525 states. [2019-10-22 11:26:01,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 699 transitions. [2019-10-22 11:26:01,153 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 699 transitions. Word has length 40 [2019-10-22 11:26:01,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:01,154 INFO L462 AbstractCegarLoop]: Abstraction has 525 states and 699 transitions. [2019-10-22 11:26:01,154 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:26:01,154 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 699 transitions. [2019-10-22 11:26:01,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-10-22 11:26:01,155 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:01,155 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, 1] [2019-10-22 11:26:01,356 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:26:01,357 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:01,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:01,357 INFO L82 PathProgramCache]: Analyzing trace with hash -410221159, now seen corresponding path program 1 times [2019-10-22 11:26:01,358 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:01,358 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1947438250] [2019-10-22 11:26:01,358 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/bin/utaipan/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:26:01,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:01,472 INFO L256 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:26:01,474 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:01,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:01,487 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:01,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:01,491 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1947438250] [2019-10-22 11:26:01,491 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:01,491 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:26:01,491 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640353615] [2019-10-22 11:26:01,491 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:26:01,492 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:01,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:26:01,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:26:01,492 INFO L87 Difference]: Start difference. First operand 525 states and 699 transitions. Second operand 5 states. [2019-10-22 11:26:01,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:01,679 INFO L93 Difference]: Finished difference Result 1532 states and 2001 transitions. [2019-10-22 11:26:01,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:26:01,679 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 45 [2019-10-22 11:26:01,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:01,682 INFO L225 Difference]: With dead ends: 1532 [2019-10-22 11:26:01,682 INFO L226 Difference]: Without dead ends: 1013 [2019-10-22 11:26:01,683 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:26:01,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1013 states. [2019-10-22 11:26:01,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1013 to 570. [2019-10-22 11:26:01,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 570 states. [2019-10-22 11:26:01,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 744 transitions. [2019-10-22 11:26:01,729 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 744 transitions. Word has length 45 [2019-10-22 11:26:01,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:01,729 INFO L462 AbstractCegarLoop]: Abstraction has 570 states and 744 transitions. [2019-10-22 11:26:01,729 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:26:01,729 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 744 transitions. [2019-10-22 11:26:01,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-10-22 11:26:01,730 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:01,731 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, 1] [2019-10-22 11:26:01,931 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:26:01,931 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:01,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:01,932 INFO L82 PathProgramCache]: Analyzing trace with hash -387588905, now seen corresponding path program 1 times [2019-10-22 11:26:01,932 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:01,932 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2093286831] [2019-10-22 11:26:01,933 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/bin/utaipan/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:26:02,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:02,065 INFO L256 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:26:02,066 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:02,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:02,083 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:02,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:02,097 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2093286831] [2019-10-22 11:26:02,097 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:02,097 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-10-22 11:26:02,097 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119892030] [2019-10-22 11:26:02,098 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:26:02,098 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:02,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:26:02,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:26:02,098 INFO L87 Difference]: Start difference. First operand 570 states and 744 transitions. Second operand 6 states. [2019-10-22 11:26:02,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:02,297 INFO L93 Difference]: Finished difference Result 1412 states and 1824 transitions. [2019-10-22 11:26:02,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:26:02,298 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2019-10-22 11:26:02,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:02,300 INFO L225 Difference]: With dead ends: 1412 [2019-10-22 11:26:02,300 INFO L226 Difference]: Without dead ends: 777 [2019-10-22 11:26:02,301 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:26:02,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2019-10-22 11:26:02,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 447. [2019-10-22 11:26:02,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 447 states. [2019-10-22 11:26:02,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 580 transitions. [2019-10-22 11:26:02,356 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 580 transitions. Word has length 45 [2019-10-22 11:26:02,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:02,356 INFO L462 AbstractCegarLoop]: Abstraction has 447 states and 580 transitions. [2019-10-22 11:26:02,356 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:26:02,357 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 580 transitions. [2019-10-22 11:26:02,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-10-22 11:26:02,357 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:02,358 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, 1] [2019-10-22 11:26:02,558 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:26:02,558 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:02,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:02,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1889280038, now seen corresponding path program 1 times [2019-10-22 11:26:02,559 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:02,559 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1737033651] [2019-10-22 11:26:02,559 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/bin/utaipan/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:26:02,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:02,714 INFO L256 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:26:02,716 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:02,731 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:02,731 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:02,736 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:02,736 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1737033651] [2019-10-22 11:26:02,736 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:02,737 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-22 11:26:02,737 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74440042] [2019-10-22 11:26:02,737 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:26:02,737 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:02,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:26:02,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:02,738 INFO L87 Difference]: Start difference. First operand 447 states and 580 transitions. Second operand 3 states. [2019-10-22 11:26:02,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:02,761 INFO L93 Difference]: Finished difference Result 447 states and 580 transitions. [2019-10-22 11:26:02,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:26:02,762 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2019-10-22 11:26:02,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:02,767 INFO L225 Difference]: With dead ends: 447 [2019-10-22 11:26:02,767 INFO L226 Difference]: Without dead ends: 215 [2019-10-22 11:26:02,768 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:02,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2019-10-22 11:26:02,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2019-10-22 11:26:02,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2019-10-22 11:26:02,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 288 transitions. [2019-10-22 11:26:02,788 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 288 transitions. Word has length 50 [2019-10-22 11:26:02,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:02,789 INFO L462 AbstractCegarLoop]: Abstraction has 215 states and 288 transitions. [2019-10-22 11:26:02,789 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:26:02,789 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 288 transitions. [2019-10-22 11:26:02,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-22 11:26:02,790 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:02,790 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 11:26:02,991 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:26:02,991 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:02,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:02,991 INFO L82 PathProgramCache]: Analyzing trace with hash -1418553649, now seen corresponding path program 1 times [2019-10-22 11:26:02,992 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:02,992 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [373163908] [2019-10-22 11:26:02,992 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/bin/utaipan/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:26:03,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:03,137 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-22 11:26:03,138 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:03,174 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-22 11:26:03,174 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:03,217 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-22 11:26:03,218 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [373163908] [2019-10-22 11:26:03,218 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247743665] [2019-10-22 11:26:03,218 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/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 11:26:03,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:03,325 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-22 11:26:03,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:03,339 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-22 11:26:03,342 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:03,355 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-22 11:26:03,355 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-22 11:26:03,355 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5] total 9 [2019-10-22 11:26:03,356 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73086331] [2019-10-22 11:26:03,356 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-22 11:26:03,357 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:03,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-22 11:26:03,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-10-22 11:26:03,357 INFO L87 Difference]: Start difference. First operand 215 states and 288 transitions. Second operand 10 states. [2019-10-22 11:26:04,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:04,126 INFO L93 Difference]: Finished difference Result 1350 states and 1858 transitions. [2019-10-22 11:26:04,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-22 11:26:04,126 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 55 [2019-10-22 11:26:04,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:04,130 INFO L225 Difference]: With dead ends: 1350 [2019-10-22 11:26:04,130 INFO L226 Difference]: Without dead ends: 1183 [2019-10-22 11:26:04,131 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 206 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2019-10-22 11:26:04,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2019-10-22 11:26:04,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 360. [2019-10-22 11:26:04,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2019-10-22 11:26:04,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 490 transitions. [2019-10-22 11:26:04,169 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 490 transitions. Word has length 55 [2019-10-22 11:26:04,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:04,169 INFO L462 AbstractCegarLoop]: Abstraction has 360 states and 490 transitions. [2019-10-22 11:26:04,170 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-22 11:26:04,170 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 490 transitions. [2019-10-22 11:26:04,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-10-22 11:26:04,171 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:04,171 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 11:26:04,572 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 11:26:04,572 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:04,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:04,572 INFO L82 PathProgramCache]: Analyzing trace with hash 242065008, now seen corresponding path program 2 times [2019-10-22 11:26:04,573 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:04,573 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1785703575] [2019-10-22 11:26:04,573 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/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 11:26:06,134 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-22 11:26:06,134 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-22 11:26:06,167 INFO L256 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-22 11:26:06,168 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:06,208 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:26:06,243 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 11:26:06,243 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:06,286 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 11:26:06,287 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1785703575] [2019-10-22 11:26:06,287 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:06,287 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2019-10-22 11:26:06,287 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938210754] [2019-10-22 11:26:06,288 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 11:26:06,288 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:06,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 11:26:06,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:26:06,288 INFO L87 Difference]: Start difference. First operand 360 states and 490 transitions. Second operand 9 states. [2019-10-22 11:26:07,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:07,290 INFO L93 Difference]: Finished difference Result 1559 states and 2134 transitions. [2019-10-22 11:26:07,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-22 11:26:07,291 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 76 [2019-10-22 11:26:07,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:07,295 INFO L225 Difference]: With dead ends: 1559 [2019-10-22 11:26:07,295 INFO L226 Difference]: Without dead ends: 1149 [2019-10-22 11:26:07,296 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 11:26:07,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1149 states. [2019-10-22 11:26:07,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1149 to 439. [2019-10-22 11:26:07,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 439 states. [2019-10-22 11:26:07,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 588 transitions. [2019-10-22 11:26:07,364 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 588 transitions. Word has length 76 [2019-10-22 11:26:07,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:07,364 INFO L462 AbstractCegarLoop]: Abstraction has 439 states and 588 transitions. [2019-10-22 11:26:07,364 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 11:26:07,364 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 588 transitions. [2019-10-22 11:26:07,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-10-22 11:26:07,365 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:07,365 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 11:26:07,566 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:26:07,566 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:07,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:07,566 INFO L82 PathProgramCache]: Analyzing trace with hash 516824622, now seen corresponding path program 1 times [2019-10-22 11:26:07,566 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:07,567 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [629152421] [2019-10-22 11:26:07,567 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/bin/utaipan/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:26:07,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:07,685 INFO L256 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:26:07,687 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:07,702 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 11:26:07,703 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:07,723 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 11:26:07,723 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [629152421] [2019-10-22 11:26:07,723 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:07,723 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-10-22 11:26:07,723 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364733236] [2019-10-22 11:26:07,724 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:26:07,724 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:07,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:26:07,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:26:07,724 INFO L87 Difference]: Start difference. First operand 439 states and 588 transitions. Second operand 8 states. [2019-10-22 11:26:07,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:07,801 INFO L93 Difference]: Finished difference Result 722 states and 959 transitions. [2019-10-22 11:26:07,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:26:07,803 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 76 [2019-10-22 11:26:07,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:07,804 INFO L225 Difference]: With dead ends: 722 [2019-10-22 11:26:07,804 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:26:07,805 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 11:26:07,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:26:07,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:26:07,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:26:07,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:26:07,805 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2019-10-22 11:26:07,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:07,805 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:26:07,805 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:26:07,806 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:26:07,806 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:26:08,006 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:26:08,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:26:08,290 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 84 [2019-10-22 11:26:08,579 WARN L191 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 142 [2019-10-22 11:26:08,751 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 125 [2019-10-22 11:26:08,921 WARN L191 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 127 [2019-10-22 11:26:09,131 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 140 [2019-10-22 11:26:09,264 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 125 [2019-10-22 11:26:09,730 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 25 [2019-10-22 11:26:10,468 WARN L191 SmtUtils]: Spent 640.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 35 [2019-10-22 11:26:10,956 WARN L191 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 36 [2019-10-22 11:26:11,457 WARN L191 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 34 [2019-10-22 11:26:12,172 WARN L191 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 34 [2019-10-22 11:26:12,620 WARN L191 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 36 [2019-10-22 11:26:12,880 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 39 [2019-10-22 11:26:13,076 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 32 [2019-10-22 11:26:13,455 WARN L191 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 35 [2019-10-22 11:26:13,766 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 26 [2019-10-22 11:26:13,814 INFO L443 ceAbstractionStarter]: For program point L531(lines 531 535) no Hoare annotation was computed. [2019-10-22 11:26:13,814 INFO L443 ceAbstractionStarter]: For program point L432(lines 432 436) no Hoare annotation was computed. [2019-10-22 11:26:13,814 INFO L443 ceAbstractionStarter]: For program point L432-1(lines 194 200) no Hoare annotation was computed. [2019-10-22 11:26:13,815 INFO L439 ceAbstractionStarter]: At program point L201(lines 201 207) the Hoare annotation is: (let ((.cse4 (not (= ~systemActive~0 (_ bv0 32)))) (.cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse3 (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32))) (.cse0 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse1 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 (and .cse1 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) .cse2)) (and .cse3 .cse0 .cse4) (and .cse1 .cse0 .cse2 (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0 (_ bv4294967295 32)) (_ bv0 32))) (and (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) .cse1 .cse0 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0 (_ bv0 32))) .cse4 .cse2) (and .cse3 .cse0 .cse1))) [2019-10-22 11:26:13,815 INFO L439 ceAbstractionStarter]: At program point L201-1(lines 201 207) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|)) (.cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~5 (_ bv4294967295 32)) (_ bv0 32)) (and .cse0 (not (= ~systemActive~0 (_ bv0 32))) .cse1 .cse2)) (and .cse0 .cse1 .cse2 (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0 (_ bv4294967295 32)) (_ bv0 32))))) [2019-10-22 11:26:13,815 INFO L439 ceAbstractionStarter]: At program point L201-2(lines 201 207) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:26:13,815 INFO L443 ceAbstractionStarter]: For program point L499(lines 499 506) no Hoare annotation was computed. [2019-10-22 11:26:13,815 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 620) no Hoare annotation was computed. [2019-10-22 11:26:13,815 INFO L446 ceAbstractionStarter]: At program point L499-1(lines 499 506) the Hoare annotation is: true [2019-10-22 11:26:13,815 INFO L439 ceAbstractionStarter]: At program point L170(lines 121 171) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|)) (.cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and .cse0 (not (= ~systemActive~0 (_ bv0 32))) .cse1 .cse2) (and .cse0 .cse1 .cse2 (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0 (_ bv4294967295 32)) (_ bv0 32))))) [2019-10-22 11:26:13,815 INFO L439 ceAbstractionStarter]: At program point L601(lines 592 605) the Hoare annotation is: false [2019-10-22 11:26:13,816 INFO L439 ceAbstractionStarter]: At program point L601-1(lines 592 605) the Hoare annotation is: (let ((.cse0 (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|)) (.cse4 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse3 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse2 (not (= ~systemActive~0 (_ bv0 32))))) (or (and .cse0 .cse1 (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) .cse2 .cse3 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0 (_ bv0 32))) .cse4) (and .cse0 .cse1 .cse3 .cse2 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) .cse4) (and (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) .cse3 (and .cse1 .cse2)))) [2019-10-22 11:26:13,816 INFO L439 ceAbstractionStarter]: At program point L601-2(lines 592 605) the Hoare annotation is: false [2019-10-22 11:26:13,816 INFO L439 ceAbstractionStarter]: At program point L601-3(lines 592 605) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (not (= ~systemActive~0 (_ bv0 32))) (= (_ bv0 32) ~pumpRunning~0) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:26:13,816 INFO L439 ceAbstractionStarter]: At program point L601-4(lines 592 605) the Hoare annotation is: false [2019-10-22 11:26:13,816 INFO L439 ceAbstractionStarter]: At program point L601-5(lines 592 605) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (not (= ~systemActive~0 (_ bv0 32))) (= (_ bv0 32) ~pumpRunning~0) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:26:13,816 INFO L439 ceAbstractionStarter]: At program point L73(lines 68 76) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:26:13,816 INFO L443 ceAbstractionStarter]: For program point L405(lines 405 411) no Hoare annotation was computed. [2019-10-22 11:26:13,816 INFO L439 ceAbstractionStarter]: At program point L405-1(lines 405 411) the Hoare annotation is: (let ((.cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse1 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse0 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0 (_ bv4294967295 32)) (_ bv0 32))) (and .cse1 (and .cse0 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) .cse2)) (and (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) .cse1 .cse0))) [2019-10-22 11:26:13,816 INFO L443 ceAbstractionStarter]: For program point L372(lines 372 376) no Hoare annotation was computed. [2019-10-22 11:26:13,816 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 620) no Hoare annotation was computed. [2019-10-22 11:26:13,817 INFO L443 ceAbstractionStarter]: For program point L372-2(lines 372 376) no Hoare annotation was computed. [2019-10-22 11:26:13,817 INFO L443 ceAbstractionStarter]: For program point L372-3(lines 372 376) no Hoare annotation was computed. [2019-10-22 11:26:13,817 INFO L443 ceAbstractionStarter]: For program point L372-5(lines 372 376) no Hoare annotation was computed. [2019-10-22 11:26:13,817 INFO L443 ceAbstractionStarter]: For program point L372-6(lines 372 376) no Hoare annotation was computed. [2019-10-22 11:26:13,817 INFO L443 ceAbstractionStarter]: For program point L372-8(lines 372 376) no Hoare annotation was computed. [2019-10-22 11:26:13,817 INFO L443 ceAbstractionStarter]: For program point L372-9(lines 372 376) no Hoare annotation was computed. [2019-10-22 11:26:13,817 INFO L443 ceAbstractionStarter]: For program point L372-11(lines 372 376) no Hoare annotation was computed. [2019-10-22 11:26:13,817 INFO L443 ceAbstractionStarter]: For program point L372-12(lines 372 376) no Hoare annotation was computed. [2019-10-22 11:26:13,818 INFO L443 ceAbstractionStarter]: For program point L372-14(lines 372 376) no Hoare annotation was computed. [2019-10-22 11:26:13,818 INFO L443 ceAbstractionStarter]: For program point L372-15(lines 372 376) no Hoare annotation was computed. [2019-10-22 11:26:13,818 INFO L443 ceAbstractionStarter]: For program point L372-17(lines 372 376) no Hoare annotation was computed. [2019-10-22 11:26:13,818 INFO L443 ceAbstractionStarter]: For program point L142(lines 142 148) no Hoare annotation was computed. [2019-10-22 11:26:13,818 INFO L439 ceAbstractionStarter]: At program point L142-1(lines 142 148) the Hoare annotation is: (let ((.cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse3 (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32))) (.cse4 (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|))) (.cse1 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse5 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0 (_ bv0 32)))) (.cse6 (not (= ~systemActive~0 (_ bv0 32))))) (or (and .cse0 .cse1 .cse2 (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0 (_ bv4294967295 32)) (_ bv0 32))) (and .cse3 .cse0 .cse4 .cse1 .cse5) (and (and .cse0 .cse6) .cse3 .cse1) (and .cse1 .cse2 (and .cse0 .cse6 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|))) (and .cse3 .cse4 .cse1 .cse5 .cse6))) [2019-10-22 11:26:13,818 INFO L446 ceAbstractionStarter]: At program point L508(lines 489 511) the Hoare annotation is: true [2019-10-22 11:26:13,818 INFO L439 ceAbstractionStarter]: At program point L476(lines 472 478) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:26:13,818 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 620) no Hoare annotation was computed. [2019-10-22 11:26:13,818 INFO L443 ceAbstractionStarter]: For program point L543(lines 543 547) no Hoare annotation was computed. [2019-10-22 11:26:13,818 INFO L439 ceAbstractionStarter]: At program point L378(lines 363 381) the Hoare annotation is: false [2019-10-22 11:26:13,819 INFO L439 ceAbstractionStarter]: At program point L378-1(lines 363 381) the Hoare annotation is: (let ((.cse3 (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|)) (.cse4 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~2 (_ bv0 32))) (.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse2 (not (= ~systemActive~0 (_ bv0 32)))) (.cse0 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse5 (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~5 (_ bv4294967295 32)) (_ bv0 32))) (.cse6 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32))) (.cse7 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) .cse0 (and .cse1 .cse2)) (and .cse3 .cse4 .cse1 .cse0 .cse2 .cse5 .cse6 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) .cse7) (and .cse3 .cse4 .cse1 (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) .cse2 .cse0 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0 (_ bv0 32))) .cse5 .cse6 .cse7))) [2019-10-22 11:26:13,819 INFO L439 ceAbstractionStarter]: At program point L378-2(lines 363 381) the Hoare annotation is: false [2019-10-22 11:26:13,819 INFO L439 ceAbstractionStarter]: At program point L378-3(lines 363 381) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (not (= ~systemActive~0 (_ bv0 32))) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~2 (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~5 (_ bv4294967295 32)) (_ bv0 32)) (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:26:13,819 INFO L439 ceAbstractionStarter]: At program point L378-4(lines 363 381) the Hoare annotation is: false [2019-10-22 11:26:13,819 INFO L439 ceAbstractionStarter]: At program point L378-5(lines 363 381) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (not (= ~systemActive~0 (_ bv0 32))) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~2 (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~5 (_ bv4294967295 32)) (_ bv0 32)) (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:26:13,819 INFO L439 ceAbstractionStarter]: At program point L611(lines 606 614) the Hoare annotation is: (and (not (= ~systemActive~0 (_ bv0 32))) (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32)) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0 (_ bv0 32))) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:26:13,819 INFO L439 ceAbstractionStarter]: At program point L611-1(lines 606 614) the Hoare annotation is: false [2019-10-22 11:26:13,819 INFO L439 ceAbstractionStarter]: At program point L611-2(lines 606 614) the Hoare annotation is: false [2019-10-22 11:26:13,820 INFO L439 ceAbstractionStarter]: At program point L314(lines 307 317) the Hoare annotation is: false [2019-10-22 11:26:13,820 INFO L439 ceAbstractionStarter]: At program point L314-1(lines 307 317) the Hoare annotation is: (and (not (= ~systemActive~0 (_ bv0 32))) (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) [2019-10-22 11:26:13,820 INFO L439 ceAbstractionStarter]: At program point L314-2(lines 307 317) the Hoare annotation is: false [2019-10-22 11:26:13,820 INFO L439 ceAbstractionStarter]: At program point L314-3(lines 307 317) the Hoare annotation is: false [2019-10-22 11:26:13,820 INFO L439 ceAbstractionStarter]: At program point L314-4(lines 307 317) the Hoare annotation is: false [2019-10-22 11:26:13,820 INFO L439 ceAbstractionStarter]: At program point L314-5(lines 307 317) the Hoare annotation is: false [2019-10-22 11:26:13,820 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:26:13,820 INFO L443 ceAbstractionStarter]: For program point L152(lines 152 165) no Hoare annotation was computed. [2019-10-22 11:26:13,820 INFO L443 ceAbstractionStarter]: For program point L252(lines 252 269) no Hoare annotation was computed. [2019-10-22 11:26:13,820 INFO L443 ceAbstractionStarter]: For program point L252-1(lines 252 269) no Hoare annotation was computed. [2019-10-22 11:26:13,820 INFO L443 ceAbstractionStarter]: For program point L252-2(lines 252 269) no Hoare annotation was computed. [2019-10-22 11:26:13,820 INFO L443 ceAbstractionStarter]: For program point L89(lines 89 102) no Hoare annotation was computed. [2019-10-22 11:26:13,821 INFO L439 ceAbstractionStarter]: At program point L89-1(lines 1 989) the Hoare annotation is: (let ((.cse3 (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32))) (.cse4 (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|))) (.cse6 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0 (_ bv0 32)))) (.cse1 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse5 (not (= ~systemActive~0 (_ bv0 32))))) (or (and .cse0 .cse1 .cse2 (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0 (_ bv4294967295 32)) (_ bv0 32))) (and .cse3 .cse4 .cse1 .cse5 .cse6) (and .cse3 .cse1 (and .cse0 .cse4 .cse6)) (and .cse1 .cse2 (and .cse0 .cse5 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|))))) [2019-10-22 11:26:13,821 INFO L443 ceAbstractionStarter]: For program point L89-2(lines 89 102) no Hoare annotation was computed. [2019-10-22 11:26:13,821 INFO L439 ceAbstractionStarter]: At program point L89-3(lines 1 989) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:26:13,821 INFO L443 ceAbstractionStarter]: For program point L89-4(lines 89 102) no Hoare annotation was computed. [2019-10-22 11:26:13,821 INFO L439 ceAbstractionStarter]: At program point L89-5(lines 1 989) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:26:13,821 INFO L443 ceAbstractionStarter]: For program point L519(lines 519 523) no Hoare annotation was computed. [2019-10-22 11:26:13,822 INFO L443 ceAbstractionStarter]: For program point L519-3(lines 519 523) no Hoare annotation was computed. [2019-10-22 11:26:13,822 INFO L443 ceAbstractionStarter]: For program point L519-6(lines 519 523) no Hoare annotation was computed. [2019-10-22 11:26:13,822 INFO L443 ceAbstractionStarter]: For program point L123(lines 122 169) no Hoare annotation was computed. [2019-10-22 11:26:13,822 INFO L443 ceAbstractionStarter]: For program point L289(lines 289 295) no Hoare annotation was computed. [2019-10-22 11:26:13,822 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:26:13,822 INFO L443 ceAbstractionStarter]: For program point L256(lines 256 264) no Hoare annotation was computed. [2019-10-22 11:26:13,822 INFO L443 ceAbstractionStarter]: For program point L289-2(lines 289 295) no Hoare annotation was computed. [2019-10-22 11:26:13,822 INFO L443 ceAbstractionStarter]: For program point L256-1(lines 256 264) no Hoare annotation was computed. [2019-10-22 11:26:13,822 INFO L443 ceAbstractionStarter]: For program point L256-2(lines 256 264) no Hoare annotation was computed. [2019-10-22 11:26:13,822 INFO L443 ceAbstractionStarter]: For program point L289-4(lines 289 295) no Hoare annotation was computed. [2019-10-22 11:26:13,822 INFO L443 ceAbstractionStarter]: For program point L124(lines 124 128) no Hoare annotation was computed. [2019-10-22 11:26:13,822 INFO L443 ceAbstractionStarter]: For program point L289-6(lines 289 295) no Hoare annotation was computed. [2019-10-22 11:26:13,823 INFO L443 ceAbstractionStarter]: For program point L289-8(lines 289 295) no Hoare annotation was computed. [2019-10-22 11:26:13,823 INFO L443 ceAbstractionStarter]: For program point L289-10(lines 289 295) no Hoare annotation was computed. [2019-10-22 11:26:13,823 INFO L443 ceAbstractionStarter]: For program point L620(line 620) no Hoare annotation was computed. [2019-10-22 11:26:13,823 INFO L443 ceAbstractionStarter]: For program point L620-1(line 620) no Hoare annotation was computed. [2019-10-22 11:26:13,823 INFO L443 ceAbstractionStarter]: For program point L620-2(line 620) no Hoare annotation was computed. [2019-10-22 11:26:13,823 INFO L439 ceAbstractionStarter]: At program point L323(lines 318 326) the Hoare annotation is: false [2019-10-22 11:26:13,823 INFO L439 ceAbstractionStarter]: At program point L323-1(lines 318 326) the Hoare annotation is: false [2019-10-22 11:26:13,823 INFO L439 ceAbstractionStarter]: At program point L323-2(lines 318 326) the Hoare annotation is: false [2019-10-22 11:26:13,823 INFO L443 ceAbstractionStarter]: For program point L158(lines 158 164) no Hoare annotation was computed. [2019-10-22 11:26:13,823 INFO L439 ceAbstractionStarter]: At program point L158-1(lines 194 200) the Hoare annotation is: (let ((.cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse3 (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32))) (.cse1 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32)))) (or (and .cse0 .cse1 .cse2 (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0 (_ bv4294967295 32)) (_ bv0 32))) (and .cse1 (and .cse0 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) .cse2)) (and .cse3 .cse1 .cse0) (and .cse3 (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) .cse1 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0 (_ bv0 32))) (not (= ~systemActive~0 (_ bv0 32)))))) [2019-10-22 11:26:13,823 INFO L439 ceAbstractionStarter]: At program point L588(lines 583 591) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse2 (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32))) (.cse3 (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|))) (.cse1 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32)))) (or (and .cse0 .cse1 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) (and .cse2 .cse3 .cse0 .cse1) (and .cse2 .cse3 .cse1 (not (= ~systemActive~0 (_ bv0 32)))))) [2019-10-22 11:26:13,824 INFO L439 ceAbstractionStarter]: At program point L588-1(lines 583 591) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:26:13,824 INFO L439 ceAbstractionStarter]: At program point L588-2(lines 583 591) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:26:13,824 INFO L443 ceAbstractionStarter]: For program point L93(lines 93 99) no Hoare annotation was computed. [2019-10-22 11:26:13,824 INFO L443 ceAbstractionStarter]: For program point L93-2(lines 93 99) no Hoare annotation was computed. [2019-10-22 11:26:13,824 INFO L443 ceAbstractionStarter]: For program point L93-4(lines 93 99) no Hoare annotation was computed. [2019-10-22 11:26:13,824 INFO L439 ceAbstractionStarter]: At program point L556(lines 551 559) the Hoare annotation is: false [2019-10-22 11:26:13,824 INFO L439 ceAbstractionStarter]: At program point L556-1(lines 551 559) the Hoare annotation is: (and (not (= ~systemActive~0 (_ bv0 32))) (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) [2019-10-22 11:26:13,824 INFO L439 ceAbstractionStarter]: At program point L556-2(lines 551 559) the Hoare annotation is: false [2019-10-22 11:26:13,824 INFO L439 ceAbstractionStarter]: At program point L556-3(lines 551 559) the Hoare annotation is: false [2019-10-22 11:26:13,824 INFO L439 ceAbstractionStarter]: At program point L556-4(lines 551 559) the Hoare annotation is: false [2019-10-22 11:26:13,824 INFO L443 ceAbstractionStarter]: For program point L391(lines 391 395) no Hoare annotation was computed. [2019-10-22 11:26:13,824 INFO L439 ceAbstractionStarter]: At program point L556-5(lines 551 559) the Hoare annotation is: false [2019-10-22 11:26:13,825 INFO L443 ceAbstractionStarter]: For program point L391-2(lines 391 395) no Hoare annotation was computed. [2019-10-22 11:26:13,825 INFO L443 ceAbstractionStarter]: For program point L391-3(lines 391 395) no Hoare annotation was computed. [2019-10-22 11:26:13,825 INFO L443 ceAbstractionStarter]: For program point L226(lines 226 243) no Hoare annotation was computed. [2019-10-22 11:26:13,825 INFO L443 ceAbstractionStarter]: For program point L391-5(lines 391 395) no Hoare annotation was computed. [2019-10-22 11:26:13,826 INFO L443 ceAbstractionStarter]: For program point L226-1(lines 226 243) no Hoare annotation was computed. [2019-10-22 11:26:13,826 INFO L443 ceAbstractionStarter]: For program point L391-6(lines 391 395) no Hoare annotation was computed. [2019-10-22 11:26:13,826 INFO L443 ceAbstractionStarter]: For program point L226-2(lines 226 243) no Hoare annotation was computed. [2019-10-22 11:26:13,826 INFO L443 ceAbstractionStarter]: For program point L226-3(lines 226 243) no Hoare annotation was computed. [2019-10-22 11:26:13,826 INFO L443 ceAbstractionStarter]: For program point L391-8(lines 391 395) no Hoare annotation was computed. [2019-10-22 11:26:13,826 INFO L443 ceAbstractionStarter]: For program point L226-4(lines 226 243) no Hoare annotation was computed. [2019-10-22 11:26:13,826 INFO L443 ceAbstractionStarter]: For program point L226-5(lines 226 243) no Hoare annotation was computed. [2019-10-22 11:26:13,826 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:26:13,826 INFO L439 ceAbstractionStarter]: At program point L194(lines 193 212) the Hoare annotation is: (let ((.cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse1 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse0 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0 (_ bv4294967295 32)) (_ bv0 32))) (and .cse1 (and .cse0 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) .cse2)) (and (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) .cse1 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0 (_ bv0 32))) (not (= ~systemActive~0 (_ bv0 32))) .cse2) (and (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) .cse1 .cse0))) [2019-10-22 11:26:13,826 INFO L443 ceAbstractionStarter]: For program point L194-1(lines 194 200) no Hoare annotation was computed. [2019-10-22 11:26:13,826 INFO L439 ceAbstractionStarter]: At program point L194-2(lines 193 212) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|)) (.cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and .cse0 (not (= ~systemActive~0 (_ bv0 32))) .cse1 .cse2) (and .cse0 .cse1 .cse2 (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0 (_ bv4294967295 32)) (_ bv0 32))))) [2019-10-22 11:26:13,827 INFO L439 ceAbstractionStarter]: At program point L194-3(lines 193 212) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:26:13,827 INFO L439 ceAbstractionStarter]: At program point L428-2(lines 428 442) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:26:13,827 INFO L443 ceAbstractionStarter]: For program point L230(lines 230 238) no Hoare annotation was computed. [2019-10-22 11:26:13,827 INFO L443 ceAbstractionStarter]: For program point L230-1(lines 230 238) no Hoare annotation was computed. [2019-10-22 11:26:13,827 INFO L443 ceAbstractionStarter]: For program point L230-2(lines 230 238) no Hoare annotation was computed. [2019-10-22 11:26:13,827 INFO L443 ceAbstractionStarter]: For program point L230-3(lines 230 238) no Hoare annotation was computed. [2019-10-22 11:26:13,827 INFO L443 ceAbstractionStarter]: For program point L230-4(lines 230 238) no Hoare annotation was computed. [2019-10-22 11:26:13,827 INFO L439 ceAbstractionStarter]: At program point L65(lines 1 989) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:26:13,827 INFO L443 ceAbstractionStarter]: For program point L230-5(lines 230 238) no Hoare annotation was computed. [2019-10-22 11:26:13,827 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 11:26:13,827 INFO L443 ceAbstractionStarter]: For program point L429(line 429) no Hoare annotation was computed. [2019-10-22 11:26:13,828 INFO L443 ceAbstractionStarter]: For program point L132(lines 132 138) no Hoare annotation was computed. [2019-10-22 11:26:13,828 INFO L439 ceAbstractionStarter]: At program point L132-1(lines 132 138) the Hoare annotation is: (let ((.cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse3 (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32))) (.cse4 (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|))) (.cse1 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse5 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0 (_ bv0 32)))) (.cse6 (not (= ~systemActive~0 (_ bv0 32))))) (or (and .cse0 .cse1 .cse2 (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0 (_ bv4294967295 32)) (_ bv0 32))) (and .cse3 .cse0 .cse4 .cse1 .cse5) (and (and .cse0 .cse6) .cse3 .cse1) (and .cse1 .cse2 (and .cse0 .cse6 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|))) (and .cse3 .cse4 .cse1 .cse5 .cse6))) [2019-10-22 11:26:13,828 INFO L439 ceAbstractionStarter]: At program point L397(lines 382 400) the Hoare annotation is: (and (not (= ~systemActive~0 (_ bv0 32))) (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32)) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0 (_ bv0 32))) (= (bvadd |ULTIMATE.start_isLowWaterLevel_#res| (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ULTIMATE.start_isLowWaterLevel_~tmp___0~3 (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start_isLowWaterLevel_~tmp~6 (_ bv0 32))) [2019-10-22 11:26:13,828 INFO L439 ceAbstractionStarter]: At program point L397-1(lines 382 400) the Hoare annotation is: false [2019-10-22 11:26:13,828 INFO L439 ceAbstractionStarter]: At program point L397-2(lines 382 400) the Hoare annotation is: false [2019-10-22 11:26:13,828 INFO L443 ceAbstractionStarter]: For program point L596(lines 596 602) no Hoare annotation was computed. [2019-10-22 11:26:13,828 INFO L443 ceAbstractionStarter]: For program point L596-1(lines 596 602) no Hoare annotation was computed. [2019-10-22 11:26:13,828 INFO L443 ceAbstractionStarter]: For program point L596-2(lines 596 602) no Hoare annotation was computed. [2019-10-22 11:26:13,828 INFO L443 ceAbstractionStarter]: For program point L596-3(lines 596 602) no Hoare annotation was computed. [2019-10-22 11:26:13,828 INFO L443 ceAbstractionStarter]: For program point L596-4(lines 596 602) no Hoare annotation was computed. [2019-10-22 11:26:13,828 INFO L443 ceAbstractionStarter]: For program point L596-5(lines 596 602) no Hoare annotation was computed. [2019-10-22 11:26:13,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:26:13 BoogieIcfgContainer [2019-10-22 11:26:13,854 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:26:13,855 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:26:13,855 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:26:13,855 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:26:13,855 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:57" (3/4) ... [2019-10-22 11:26:13,859 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:26:13,873 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2019-10-22 11:26:13,873 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2019-10-22 11:26:13,874 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-10-22 11:26:13,875 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 11:26:13,875 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 11:26:13,876 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 11:26:13,903 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 [2019-10-22 11:26:13,903 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 [2019-10-22 11:26:13,903 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) || ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32)) && !(tmp == 0bv32))) || ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && (0bv32 == pumpRunning && !(0bv32 == \result)) && !(tmp == 0bv32))) || ((~bvslt32(splverifierCounter, 4bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && (0bv32 == pumpRunning && !(systemActive == 0bv32)) && 1bv32 == \result) [2019-10-22 11:26:13,904 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0bv32 == pumpRunning && !(systemActive == 0bv32)) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || ((((0bv32 == pumpRunning && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) [2019-10-22 11:26:13,904 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0bv32 == pumpRunning && !(systemActive == 0bv32)) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || ((((0bv32 == pumpRunning && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) [2019-10-22 11:26:13,904 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) || ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && 0bv32 == pumpRunning) && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && !(tmp == 0bv32))) || (((0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967294bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32))) || ((~bvslt32(splverifierCounter, 4bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && (0bv32 == pumpRunning && !(systemActive == 0bv32)) && 1bv32 == \result)) || ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && !(tmp == 0bv32)) && !(systemActive == 0bv32)) [2019-10-22 11:26:13,904 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ((0bv32 == pumpRunning && !(systemActive == 0bv32)) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || ((((0bv32 == pumpRunning && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) [2019-10-22 11:26:13,905 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) || ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && 0bv32 == pumpRunning) && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && !(tmp == 0bv32))) || (((0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967294bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32))) || ((~bvslt32(splverifierCounter, 4bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && (0bv32 == pumpRunning && !(systemActive == 0bv32)) && 1bv32 == \result)) || ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && !(tmp == 0bv32)) && !(systemActive == 0bv32)) [2019-10-22 11:26:13,905 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) || (~bvslt32(splverifierCounter, 4bv32) && (0bv32 == pumpRunning && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && 0bv32 == pumpRunning)) || ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && !(tmp == 0bv32)) && !(systemActive == 0bv32)) [2019-10-22 11:26:13,905 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) || (~bvslt32(splverifierCounter, 4bv32) && (0bv32 == pumpRunning && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((((!(0bv32 == \result) && ~bvslt32(splverifierCounter, 4bv32)) && !(tmp == 0bv32)) && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && 0bv32 == pumpRunning) [2019-10-22 11:26:13,905 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((~bvslt32(splverifierCounter, 4bv32) && (0bv32 == pumpRunning && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32))) || ((((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(tmp, 4294967295bv32) == 0bv32)) || (((((!(0bv32 == \result) && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && !(tmp == 0bv32)) && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && 0bv32 == pumpRunning) [2019-10-22 11:26:13,905 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((0bv32 == pumpRunning && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:26:13,906 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) || (~bvslt32(splverifierCounter, 4bv32) && (0bv32 == pumpRunning && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && 0bv32 == pumpRunning) [2019-10-22 11:26:13,906 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0bv32 == pumpRunning && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(tmp, 4294967295bv32) == 0bv32 [2019-10-22 11:26:13,906 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0bv32 == pumpRunning && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(tmp, 4294967295bv32) == 0bv32 [2019-10-22 11:26:13,906 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) || (((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32))) || (((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32)) [2019-10-22 11:26:13,907 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((1bv32 == \result && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 [2019-10-22 11:26:13,907 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0bv32 == pumpRunning && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(tmp, 4294967295bv32) == 0bv32 [2019-10-22 11:26:13,907 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0bv32 == pumpRunning && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(tmp, 4294967295bv32) == 0bv32 [2019-10-22 11:26:13,907 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(systemActive == 0bv32) && !(0bv32 == \result)) && \result == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && !(tmp == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 [2019-10-22 11:26:13,908 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1bv32 == \result && !(systemActive == 0bv32)) && tmp___0 == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && \result == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 [2019-10-22 11:26:13,908 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((1bv32 == \result && 0bv32 == pumpRunning) && !(0bv32 == \result)) && !(systemActive == 0bv32)) && ~bvslt32(splverifierCounter, 4bv32)) && !(tmp == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((((1bv32 == \result && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32)) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && 0bv32 == pumpRunning && !(systemActive == 0bv32)) [2019-10-22 11:26:13,908 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((0bv32 == pumpRunning && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:26:13,908 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(systemActive == 0bv32) && !(0bv32 == \result)) && \result == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && !(tmp == 0bv32)) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && tmp == 0bv32 [2019-10-22 11:26:13,908 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0bv32 == pumpRunning && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(tmp, 4294967295bv32) == 0bv32 [2019-10-22 11:26:13,910 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && 0bv32 == pumpRunning && !(systemActive == 0bv32)) || ((((((((1bv32 == \result && tmp___0 == 0bv32) && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32)) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && \result == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || (((((((((1bv32 == \result && tmp___0 == 0bv32) && 0bv32 == pumpRunning) && !(0bv32 == \result)) && !(systemActive == 0bv32)) && ~bvslt32(splverifierCounter, 4bv32)) && !(tmp == 0bv32)) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && \result == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) [2019-10-22 11:26:13,910 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1bv32 == \result && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(tmp, 4294967295bv32) == 0bv32 [2019-10-22 11:26:13,910 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((1bv32 == \result && !(systemActive == 0bv32)) && tmp___0 == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && \result == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(tmp, 4294967295bv32) == 0bv32 [2019-10-22 11:26:13,972 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_49746dba-bf53-4fa1-ac2b-9d3b1eb514a6/bin/utaipan/witness.graphml [2019-10-22 11:26:13,972 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:26:13,973 INFO L168 Benchmark]: Toolchain (without parser) took 18034.48 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 407.4 MB). Free memory was 945.6 MB in the beginning and 1.0 GB in the end (delta: -98.7 MB). Peak memory consumption was 308.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:13,973 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:26:13,973 INFO L168 Benchmark]: CACSL2BoogieTranslator took 576.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 940.2 MB in the beginning and 1.1 GB in the end (delta: -191.2 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:13,973 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.97 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:13,974 INFO L168 Benchmark]: Boogie Preprocessor took 40.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:26:13,974 INFO L168 Benchmark]: RCFGBuilder took 978.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 71.1 MB). Peak memory consumption was 71.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:13,974 INFO L168 Benchmark]: TraceAbstraction took 16246.33 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 255.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -13.0 MB). Peak memory consumption was 481.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:13,974 INFO L168 Benchmark]: Witness Printer took 117.01 ms. Allocated memory is still 1.4 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:13,976 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 576.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 940.2 MB in the beginning and 1.1 GB in the end (delta: -191.2 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 66.97 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.54 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 978.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 71.1 MB). Peak memory consumption was 71.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 16246.33 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 255.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -13.0 MB). Peak memory consumption was 481.6 MB. Max. memory is 11.5 GB. * Witness Printer took 117.01 ms. Allocated memory is still 1.4 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 620]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 620]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 620]: 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: 307]: Loop Invariant Derived loop invariant: ((!(systemActive == 0bv32) && ~bvadd64(waterLevel, 4294967294bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32) - InvariantResult [Line: 307]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 307]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) || (((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32))) || (((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32)) - InvariantResult [Line: 201]: Loop Invariant Derived loop invariant: (((0bv32 == pumpRunning && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(tmp, 4294967295bv32) == 0bv32 - InvariantResult [Line: 307]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 201]: Loop Invariant Derived loop invariant: ((1bv32 == \result && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ((0bv32 == pumpRunning && !(systemActive == 0bv32)) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || ((((0bv32 == pumpRunning && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((0bv32 == pumpRunning && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 307]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 201]: Loop Invariant Derived loop invariant: ((((~bvslt32(splverifierCounter, 4bv32) && (0bv32 == pumpRunning && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32))) || ((((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(tmp, 4294967295bv32) == 0bv32)) || (((((!(0bv32 == \result) && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && !(tmp == 0bv32)) && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && 0bv32 == pumpRunning) - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((0bv32 == pumpRunning && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 551]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 551]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 551]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 489]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 142]: Loop Invariant Derived loop invariant: (((((((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) || ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && 0bv32 == pumpRunning) && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && !(tmp == 0bv32))) || (((0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967294bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32))) || ((~bvslt32(splverifierCounter, 4bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && (0bv32 == pumpRunning && !(systemActive == 0bv32)) && 1bv32 == \result)) || ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && !(tmp == 0bv32)) && !(systemActive == 0bv32)) - InvariantResult [Line: 307]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((!(systemActive == 0bv32) && !(0bv32 == \result)) && \result == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && !(tmp == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 551]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 194]: Loop Invariant Derived loop invariant: ((((((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) || (~bvslt32(splverifierCounter, 4bv32) && (0bv32 == pumpRunning && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && 0bv32 == pumpRunning)) || ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && !(tmp == 0bv32)) && !(systemActive == 0bv32)) - InvariantResult [Line: 551]: Loop Invariant Derived loop invariant: ((!(systemActive == 0bv32) && ~bvadd64(waterLevel, 4294967294bv32) == 0bv32) && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32) - InvariantResult [Line: 551]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 428]: Loop Invariant Derived loop invariant: (((0bv32 == pumpRunning && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(tmp, 4294967295bv32) == 0bv32 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((0bv32 == pumpRunning && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(tmp, 4294967295bv32) == 0bv32 - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: (((0bv32 == pumpRunning && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(tmp, 4294967295bv32) == 0bv32 - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: (((((1bv32 == \result && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(tmp, 4294967295bv32) == 0bv32 - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: (((0bv32 == pumpRunning && !(systemActive == 0bv32)) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || ((((0bv32 == pumpRunning && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) - InvariantResult [Line: 472]: Loop Invariant Derived loop invariant: ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: ((((((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) || (~bvslt32(splverifierCounter, 4bv32) && (0bv32 == pumpRunning && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((((!(0bv32 == \result) && ~bvslt32(splverifierCounter, 4bv32)) && !(tmp == 0bv32)) && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && 0bv32 == pumpRunning) - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: (((((((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) || ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && 0bv32 == pumpRunning) && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && !(tmp == 0bv32))) || (((0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967294bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32))) || ((~bvslt32(splverifierCounter, 4bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && (0bv32 == pumpRunning && !(systemActive == 0bv32)) && 1bv32 == \result)) || ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && !(tmp == 0bv32)) && !(systemActive == 0bv32)) - InvariantResult [Line: 363]: Loop Invariant Derived loop invariant: (((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && 0bv32 == pumpRunning && !(systemActive == 0bv32)) || ((((((((1bv32 == \result && tmp___0 == 0bv32) && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32)) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && \result == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || (((((((((1bv32 == \result && tmp___0 == 0bv32) && 0bv32 == pumpRunning) && !(0bv32 == \result)) && !(systemActive == 0bv32)) && ~bvslt32(splverifierCounter, 4bv32)) && !(tmp == 0bv32)) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && \result == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 318]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: (((((((1bv32 == \result && 0bv32 == pumpRunning) && !(0bv32 == \result)) && !(systemActive == 0bv32)) && ~bvslt32(splverifierCounter, 4bv32)) && !(tmp == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((((1bv32 == \result && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32)) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && 0bv32 == pumpRunning && !(systemActive == 0bv32)) - InvariantResult [Line: 363]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 318]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 363]: Loop Invariant Derived loop invariant: ((((((1bv32 == \result && !(systemActive == 0bv32)) && tmp___0 == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && \result == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 318]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: (((1bv32 == \result && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 363]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 363]: Loop Invariant Derived loop invariant: ((((((((1bv32 == \result && !(systemActive == 0bv32)) && tmp___0 == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && \result == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(tmp, 4294967295bv32) == 0bv32 - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((0bv32 == pumpRunning && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(tmp, 4294967295bv32) == 0bv32 - InvariantResult [Line: 499]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) || ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32)) && !(tmp == 0bv32))) || ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && (0bv32 == pumpRunning && !(0bv32 == \result)) && !(tmp == 0bv32))) || ((~bvslt32(splverifierCounter, 4bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && (0bv32 == pumpRunning && !(systemActive == 0bv32)) && 1bv32 == \result) - InvariantResult [Line: 363]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 382]: Loop Invariant Derived loop invariant: (((((((!(systemActive == 0bv32) && !(0bv32 == \result)) && \result == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && !(tmp == 0bv32)) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && tmp == 0bv32 - InvariantResult [Line: 382]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 382]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 405]: Loop Invariant Derived loop invariant: (((((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) || (~bvslt32(splverifierCounter, 4bv32) && (0bv32 == pumpRunning && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && 0bv32 == pumpRunning) - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: (((0bv32 == pumpRunning && !(systemActive == 0bv32)) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || ((((0bv32 == pumpRunning && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 137 locations, 3 error locations. Result: SAFE, OverallTime: 16.1s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.8s, HoareTripleCheckerStatistics: 2273 SDtfs, 5674 SDslu, 6361 SDs, 0 SdLazy, 1114 SolverSat, 267 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1076 GetRequests, 984 SyntacticMatches, 2 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=570occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 3853 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 56 LocationsWithAnnotation, 56 PreInvPairs, 234 NumberOfFragments, 1295 HoareAnnotationTreeSize, 56 FomulaSimplifications, 517996 FormulaSimplificationTreeSizeReduction, 1.4s HoareSimplificationTime, 56 FomulaSimplificationsInter, 44330 FormulaSimplificationTreeSizeReductionInter, 4.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 519 NumberOfCodeBlocks, 519 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1014 ConstructedInterpolants, 0 QuantifiedInterpolants, 109639 SizeOfPredicates, 45 NumberOfNonLiveVariables, 2547 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 24 InterpolantComputations, 20 PerfectInterpolantSequences, 248/284 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...