./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product49.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_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/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 712263c6c933aaef268a48b623f3b4ee6fd9ad4b .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/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 712263c6c933aaef268a48b623f3b4ee6fd9ad4b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 11:21:57,730 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:21:57,732 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:21:57,747 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:21:57,747 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:21:57,748 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:21:57,749 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:21:57,751 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:21:57,752 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:21:57,753 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:21:57,754 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:21:57,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:21:57,756 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:21:57,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:21:57,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:21:57,758 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:21:57,758 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:21:57,759 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:21:57,761 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:21:57,762 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:21:57,764 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:21:57,765 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:21:57,766 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:21:57,766 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:21:57,772 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:21:57,773 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:21:57,773 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:21:57,774 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:21:57,774 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:21:57,775 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:21:57,775 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:21:57,779 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:21:57,779 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:21:57,780 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:21:57,780 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:21:57,781 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:21:57,781 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:21:57,781 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:21:57,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:21:57,782 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:21:57,783 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:21:57,786 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:21:57,803 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:21:57,804 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:21:57,805 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:21:57,806 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:21:57,806 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:21:57,806 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:21:57,806 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:21:57,807 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:21:57,807 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:21:57,807 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:21:57,807 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:21:57,807 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:21:57,808 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:21:57,808 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:21:57,808 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:21:57,809 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:21:57,809 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:21:57,809 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:21:57,809 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:21:57,809 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:21:57,809 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:21:57,810 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:21:57,810 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:21:57,810 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:21:57,810 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:21:57,810 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:21:57,811 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:21:57,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:21:57,811 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:21:57,813 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:21:57,813 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:21:57,813 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:21:57,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:21:57,813 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:21:57,813 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:21:57,814 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_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/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 -> 712263c6c933aaef268a48b623f3b4ee6fd9ad4b [2019-10-22 11:21:57,854 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:21:57,865 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:21:57,868 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:21:57,870 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:21:57,870 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:21:57,871 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c [2019-10-22 11:21:57,922 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/bin/utaipan/data/4fb3896eb/afd769bd595048179257a55b558baf86/FLAGa565736ef [2019-10-22 11:21:58,374 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:21:58,375 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c [2019-10-22 11:21:58,390 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/bin/utaipan/data/4fb3896eb/afd769bd595048179257a55b558baf86/FLAGa565736ef [2019-10-22 11:21:58,893 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/bin/utaipan/data/4fb3896eb/afd769bd595048179257a55b558baf86 [2019-10-22 11:21:58,896 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:21:58,897 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:21:58,898 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:58,898 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:21:58,902 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:21:58,902 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:58" (1/1) ... [2019-10-22 11:21:58,905 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d8f4cd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:58, skipping insertion in model container [2019-10-22 11:21:58,905 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:58" (1/1) ... [2019-10-22 11:21:58,913 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:21:58,955 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:21:59,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:59,320 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:21:59,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:59,439 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:21:59,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:59 WrapperNode [2019-10-22 11:21:59,440 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:59,440 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:59,441 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:21:59,441 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:21:59,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:59" (1/1) ... [2019-10-22 11:21:59,464 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:59" (1/1) ... [2019-10-22 11:21:59,515 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:59,523 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:21:59,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:21:59,524 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:21:59,533 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:59" (1/1) ... [2019-10-22 11:21:59,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:59" (1/1) ... [2019-10-22 11:21:59,547 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:59" (1/1) ... [2019-10-22 11:21:59,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:59" (1/1) ... [2019-10-22 11:21:59,558 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:59" (1/1) ... [2019-10-22 11:21:59,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:59" (1/1) ... [2019-10-22 11:21:59,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:59" (1/1) ... [2019-10-22 11:21:59,586 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:21:59,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:21:59,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:21:59,586 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:21:59,587 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/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 11:21:59,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:21:59,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 11:21:59,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:21:59,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:22:00,585 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:22:00,585 INFO L284 CfgBuilder]: Removed 156 assume(true) statements. [2019-10-22 11:22:00,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:00 BoogieIcfgContainer [2019-10-22 11:22:00,587 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:22:00,588 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:22:00,588 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:22:00,591 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:22:00,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:21:58" (1/3) ... [2019-10-22 11:22:00,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b7e6130 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:00, skipping insertion in model container [2019-10-22 11:22:00,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:59" (2/3) ... [2019-10-22 11:22:00,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b7e6130 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:00, skipping insertion in model container [2019-10-22 11:22:00,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:00" (3/3) ... [2019-10-22 11:22:00,595 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product49.cil.c [2019-10-22 11:22:00,604 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:22:00,612 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:22:00,622 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:22:00,645 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:22:00,646 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:22:00,646 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:22:00,646 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:22:00,646 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:22:00,646 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:22:00,646 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:22:00,646 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:22:00,663 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states. [2019-10-22 11:22:00,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 11:22:00,669 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:00,670 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:00,672 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:00,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:00,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1641629540, now seen corresponding path program 1 times [2019-10-22 11:22:00,695 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:00,697 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069779991] [2019-10-22 11:22:00,697 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:00,697 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:00,697 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:00,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:00,932 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 11:22:00,933 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069779991] [2019-10-22 11:22:00,933 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:00,934 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:22:00,934 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637041110] [2019-10-22 11:22:00,937 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:22:00,938 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:00,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:22:00,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:22:00,949 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 2 states. [2019-10-22 11:22:00,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:00,985 INFO L93 Difference]: Finished difference Result 228 states and 347 transitions. [2019-10-22 11:22:00,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:22:00,987 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-10-22 11:22:00,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:01,004 INFO L225 Difference]: With dead ends: 228 [2019-10-22 11:22:01,005 INFO L226 Difference]: Without dead ends: 113 [2019-10-22 11:22:01,008 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 11:22:01,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-10-22 11:22:01,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2019-10-22 11:22:01,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-10-22 11:22:01,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 165 transitions. [2019-10-22 11:22:01,055 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 165 transitions. Word has length 16 [2019-10-22 11:22:01,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:01,056 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 165 transitions. [2019-10-22 11:22:01,056 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:22:01,056 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 165 transitions. [2019-10-22 11:22:01,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 11:22:01,057 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:01,057 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 11:22:01,058 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:01,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:01,058 INFO L82 PathProgramCache]: Analyzing trace with hash 594872643, now seen corresponding path program 1 times [2019-10-22 11:22:01,058 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:01,059 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853981313] [2019-10-22 11:22:01,059 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:01,059 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:01,059 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:01,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:01,190 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 11:22:01,190 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853981313] [2019-10-22 11:22:01,190 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:01,191 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:22:01,191 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219895598] [2019-10-22 11:22:01,192 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:22:01,193 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:01,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:22:01,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:22:01,193 INFO L87 Difference]: Start difference. First operand 113 states and 165 transitions. Second operand 3 states. [2019-10-22 11:22:01,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:01,214 INFO L93 Difference]: Finished difference Result 113 states and 165 transitions. [2019-10-22 11:22:01,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:22:01,218 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-10-22 11:22:01,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:01,219 INFO L225 Difference]: With dead ends: 113 [2019-10-22 11:22:01,219 INFO L226 Difference]: Without dead ends: 47 [2019-10-22 11:22:01,220 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 11:22:01,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-10-22 11:22:01,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2019-10-22 11:22:01,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-10-22 11:22:01,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2019-10-22 11:22:01,228 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 17 [2019-10-22 11:22:01,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:01,228 INFO L462 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2019-10-22 11:22:01,228 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:22:01,229 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2019-10-22 11:22:01,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 11:22:01,229 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:01,229 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 11:22:01,229 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:01,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:01,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1404483435, now seen corresponding path program 1 times [2019-10-22 11:22:01,230 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:01,230 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871719292] [2019-10-22 11:22:01,230 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:01,230 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:01,230 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:01,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:01,341 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 11:22:01,341 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871719292] [2019-10-22 11:22:01,341 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:01,342 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:22:01,342 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021919353] [2019-10-22 11:22:01,342 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:22:01,342 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:01,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:22:01,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:22:01,343 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand 3 states. [2019-10-22 11:22:01,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:01,364 INFO L93 Difference]: Finished difference Result 88 states and 130 transitions. [2019-10-22 11:22:01,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:22:01,366 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2019-10-22 11:22:01,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:01,367 INFO L225 Difference]: With dead ends: 88 [2019-10-22 11:22:01,367 INFO L226 Difference]: Without dead ends: 47 [2019-10-22 11:22:01,367 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 11:22:01,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-10-22 11:22:01,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2019-10-22 11:22:01,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-10-22 11:22:01,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2019-10-22 11:22:01,377 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 22 [2019-10-22 11:22:01,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:01,377 INFO L462 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2019-10-22 11:22:01,377 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:22:01,378 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2019-10-22 11:22:01,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 11:22:01,379 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:01,379 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:01,379 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:01,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:01,380 INFO L82 PathProgramCache]: Analyzing trace with hash -764351347, now seen corresponding path program 1 times [2019-10-22 11:22:01,380 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:01,381 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071378199] [2019-10-22 11:22:01,381 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:01,381 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:01,381 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:01,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:01,471 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 11:22:01,472 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071378199] [2019-10-22 11:22:01,472 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:01,472 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:22:01,472 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361210560] [2019-10-22 11:22:01,473 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:22:01,473 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:01,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:22:01,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:22:01,474 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand 3 states. [2019-10-22 11:22:01,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:01,534 INFO L93 Difference]: Finished difference Result 109 states and 158 transitions. [2019-10-22 11:22:01,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:22:01,534 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-10-22 11:22:01,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:01,535 INFO L225 Difference]: With dead ends: 109 [2019-10-22 11:22:01,535 INFO L226 Difference]: Without dead ends: 68 [2019-10-22 11:22:01,536 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 11:22:01,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2019-10-22 11:22:01,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2019-10-22 11:22:01,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-10-22 11:22:01,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 93 transitions. [2019-10-22 11:22:01,546 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 93 transitions. Word has length 24 [2019-10-22 11:22:01,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:01,547 INFO L462 AbstractCegarLoop]: Abstraction has 66 states and 93 transitions. [2019-10-22 11:22:01,547 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:22:01,547 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 93 transitions. [2019-10-22 11:22:01,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 11:22:01,548 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:01,548 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:01,548 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:01,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:01,549 INFO L82 PathProgramCache]: Analyzing trace with hash -805303330, now seen corresponding path program 1 times [2019-10-22 11:22:01,549 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:01,549 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330691173] [2019-10-22 11:22:01,549 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:01,549 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:01,550 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:01,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:01,649 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 11:22:01,649 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330691173] [2019-10-22 11:22:01,649 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:01,650 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:22:01,650 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784056059] [2019-10-22 11:22:01,650 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:22:01,650 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:01,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:22:01,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:22:01,651 INFO L87 Difference]: Start difference. First operand 66 states and 93 transitions. Second operand 5 states. [2019-10-22 11:22:01,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:01,744 INFO L93 Difference]: Finished difference Result 175 states and 245 transitions. [2019-10-22 11:22:01,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:22:01,744 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-10-22 11:22:01,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:01,745 INFO L225 Difference]: With dead ends: 175 [2019-10-22 11:22:01,745 INFO L226 Difference]: Without dead ends: 115 [2019-10-22 11:22:01,746 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 11:22:01,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-10-22 11:22:01,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 72. [2019-10-22 11:22:01,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-10-22 11:22:01,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 99 transitions. [2019-10-22 11:22:01,757 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 99 transitions. Word has length 30 [2019-10-22 11:22:01,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:01,757 INFO L462 AbstractCegarLoop]: Abstraction has 72 states and 99 transitions. [2019-10-22 11:22:01,757 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:22:01,757 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 99 transitions. [2019-10-22 11:22:01,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 11:22:01,758 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:01,761 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:01,762 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:01,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:01,762 INFO L82 PathProgramCache]: Analyzing trace with hash 1857207713, now seen corresponding path program 1 times [2019-10-22 11:22:01,762 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:01,762 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017539581] [2019-10-22 11:22:01,762 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:01,762 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:01,763 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:01,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:01,842 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 11:22:01,843 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017539581] [2019-10-22 11:22:01,843 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:01,843 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:22:01,843 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889032452] [2019-10-22 11:22:01,844 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:22:01,844 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:01,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:22:01,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:22:01,844 INFO L87 Difference]: Start difference. First operand 72 states and 99 transitions. Second operand 5 states. [2019-10-22 11:22:01,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:01,956 INFO L93 Difference]: Finished difference Result 253 states and 355 transitions. [2019-10-22 11:22:01,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:22:01,959 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-10-22 11:22:01,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:01,960 INFO L225 Difference]: With dead ends: 253 [2019-10-22 11:22:01,960 INFO L226 Difference]: Without dead ends: 187 [2019-10-22 11:22:01,961 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 11:22:01,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2019-10-22 11:22:01,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 115. [2019-10-22 11:22:01,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-10-22 11:22:01,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 155 transitions. [2019-10-22 11:22:01,981 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 155 transitions. Word has length 30 [2019-10-22 11:22:01,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:01,989 INFO L462 AbstractCegarLoop]: Abstraction has 115 states and 155 transitions. [2019-10-22 11:22:01,989 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:22:01,989 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 155 transitions. [2019-10-22 11:22:01,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 11:22:01,990 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:01,990 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:01,991 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:01,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:01,991 INFO L82 PathProgramCache]: Analyzing trace with hash -150608481, now seen corresponding path program 1 times [2019-10-22 11:22:01,991 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:01,992 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180420687] [2019-10-22 11:22:01,992 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:01,992 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:01,992 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:02,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:02,065 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 11:22:02,065 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180420687] [2019-10-22 11:22:02,065 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:02,066 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:22:02,066 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850342369] [2019-10-22 11:22:02,066 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:22:02,066 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:02,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:22:02,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:22:02,067 INFO L87 Difference]: Start difference. First operand 115 states and 155 transitions. Second operand 5 states. [2019-10-22 11:22:02,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:02,193 INFO L93 Difference]: Finished difference Result 247 states and 339 transitions. [2019-10-22 11:22:02,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:22:02,194 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-10-22 11:22:02,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:02,195 INFO L225 Difference]: With dead ends: 247 [2019-10-22 11:22:02,195 INFO L226 Difference]: Without dead ends: 245 [2019-10-22 11:22:02,195 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 11:22:02,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2019-10-22 11:22:02,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 115. [2019-10-22 11:22:02,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-10-22 11:22:02,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 154 transitions. [2019-10-22 11:22:02,224 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 154 transitions. Word has length 31 [2019-10-22 11:22:02,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:02,224 INFO L462 AbstractCegarLoop]: Abstraction has 115 states and 154 transitions. [2019-10-22 11:22:02,224 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:22:02,224 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 154 transitions. [2019-10-22 11:22:02,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 11:22:02,225 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:02,225 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:02,225 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:02,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:02,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1088820762, now seen corresponding path program 1 times [2019-10-22 11:22:02,226 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:02,226 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623177094] [2019-10-22 11:22:02,226 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:02,226 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:02,227 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:02,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:02,279 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 11:22:02,280 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623177094] [2019-10-22 11:22:02,280 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:02,280 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:22:02,280 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935962747] [2019-10-22 11:22:02,281 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:22:02,281 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:02,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:22:02,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:22:02,281 INFO L87 Difference]: Start difference. First operand 115 states and 154 transitions. Second operand 4 states. [2019-10-22 11:22:02,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:02,329 INFO L93 Difference]: Finished difference Result 250 states and 335 transitions. [2019-10-22 11:22:02,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:22:02,330 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-10-22 11:22:02,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:02,331 INFO L225 Difference]: With dead ends: 250 [2019-10-22 11:22:02,331 INFO L226 Difference]: Without dead ends: 141 [2019-10-22 11:22:02,331 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 11:22:02,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2019-10-22 11:22:02,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 100. [2019-10-22 11:22:02,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2019-10-22 11:22:02,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 131 transitions. [2019-10-22 11:22:02,345 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 131 transitions. Word has length 31 [2019-10-22 11:22:02,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:02,345 INFO L462 AbstractCegarLoop]: Abstraction has 100 states and 131 transitions. [2019-10-22 11:22:02,345 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:22:02,345 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 131 transitions. [2019-10-22 11:22:02,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 11:22:02,348 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:02,349 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:02,349 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:02,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:02,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1346986200, now seen corresponding path program 1 times [2019-10-22 11:22:02,349 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:02,350 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19768799] [2019-10-22 11:22:02,350 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:02,350 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:02,350 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:02,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:02,423 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 11:22:02,423 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19768799] [2019-10-22 11:22:02,424 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:02,424 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:22:02,424 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180666095] [2019-10-22 11:22:02,424 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:22:02,424 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:02,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:22:02,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:22:02,425 INFO L87 Difference]: Start difference. First operand 100 states and 131 transitions. Second operand 5 states. [2019-10-22 11:22:02,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:02,541 INFO L93 Difference]: Finished difference Result 271 states and 366 transitions. [2019-10-22 11:22:02,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:22:02,543 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-10-22 11:22:02,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:02,544 INFO L225 Difference]: With dead ends: 271 [2019-10-22 11:22:02,544 INFO L226 Difference]: Without dead ends: 201 [2019-10-22 11:22:02,544 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 11:22:02,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2019-10-22 11:22:02,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 141. [2019-10-22 11:22:02,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2019-10-22 11:22:02,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 183 transitions. [2019-10-22 11:22:02,564 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 183 transitions. Word has length 31 [2019-10-22 11:22:02,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:02,566 INFO L462 AbstractCegarLoop]: Abstraction has 141 states and 183 transitions. [2019-10-22 11:22:02,567 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:22:02,567 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 183 transitions. [2019-10-22 11:22:02,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-22 11:22:02,568 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:02,568 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:02,568 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:02,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:02,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1033530397, now seen corresponding path program 1 times [2019-10-22 11:22:02,569 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:02,569 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171245972] [2019-10-22 11:22:02,569 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:02,569 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:02,569 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:02,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:02,648 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 11:22:02,648 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171245972] [2019-10-22 11:22:02,648 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038657748] [2019-10-22 11:22:02,648 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/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 11:22:02,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:02,755 INFO L256 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:22:02,762 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:02,794 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 11:22:02,795 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:02,826 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 11:22:02,827 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [62752642] [2019-10-22 11:22:02,833 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 53 [2019-10-22 11:22:02,888 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-10-22 11:22:02,889 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-22 11:22:03,351 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:22:03,351 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 11:22:03,356 INFO L168 Benchmark]: Toolchain (without parser) took 4458.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 939.6 MB in the beginning and 1.0 GB in the end (delta: -88.6 MB). Peak memory consumption was 56.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:03,356 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 957.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:03,357 INFO L168 Benchmark]: CACSL2BoogieTranslator took 542.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 938.3 MB in the beginning and 1.1 GB in the end (delta: -190.1 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:03,357 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:03,358 INFO L168 Benchmark]: Boogie Preprocessor took 62.59 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:03,358 INFO L168 Benchmark]: RCFGBuilder took 1000.81 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: 61.7 MB). Peak memory consumption was 61.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:03,359 INFO L168 Benchmark]: TraceAbstraction took 2765.92 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: 30.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:03,362 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 957.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 542.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 938.3 MB in the beginning and 1.1 GB in the end (delta: -190.1 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 82.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 62.59 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1000.81 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: 61.7 MB). Peak memory consumption was 61.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2765.92 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: 30.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: inappropriate decl info IMPLEMENTATION de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: inappropriate decl info IMPLEMENTATION: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 11:22:05,396 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:22:05,397 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:22:05,407 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:22:05,407 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:22:05,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:22:05,409 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:22:05,410 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:22:05,412 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:22:05,412 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:22:05,413 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:22:05,414 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:22:05,414 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:22:05,415 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:22:05,416 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:22:05,416 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:22:05,417 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:22:05,418 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:22:05,419 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:22:05,421 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:22:05,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:22:05,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:22:05,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:22:05,424 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:22:05,426 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:22:05,427 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:22:05,427 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:22:05,428 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:22:05,428 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:22:05,429 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:22:05,429 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:22:05,430 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:22:05,430 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:22:05,431 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:22:05,432 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:22:05,432 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:22:05,433 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:22:05,433 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:22:05,433 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:22:05,434 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:22:05,434 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:22:05,435 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:22:05,447 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:22:05,447 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:22:05,448 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:22:05,448 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:22:05,448 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:22:05,448 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:22:05,448 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:22:05,449 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:22:05,449 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:22:05,449 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:22:05,449 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:22:05,450 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:22:05,450 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:22:05,450 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:22:05,450 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:22:05,450 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:22:05,450 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:22:05,451 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:22:05,451 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:22:05,451 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:22:05,451 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:22:05,451 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:22:05,451 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:22:05,451 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:22:05,452 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:22:05,452 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:22:05,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:22:05,452 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:22:05,452 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:22:05,452 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:22:05,453 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:22:05,453 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:22:05,453 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:22:05,453 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:22:05,453 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_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/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 -> 712263c6c933aaef268a48b623f3b4ee6fd9ad4b [2019-10-22 11:22:05,480 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:22:05,489 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:22:05,494 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:22:05,495 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:22:05,496 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:22:05,496 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c [2019-10-22 11:22:05,545 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/bin/utaipan/data/99e0cdbff/33d995c01ef044b7b968450235893509/FLAGfa5845c15 [2019-10-22 11:22:05,996 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:22:06,001 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c [2019-10-22 11:22:06,019 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/bin/utaipan/data/99e0cdbff/33d995c01ef044b7b968450235893509/FLAGfa5845c15 [2019-10-22 11:22:06,354 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/bin/utaipan/data/99e0cdbff/33d995c01ef044b7b968450235893509 [2019-10-22 11:22:06,357 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:22:06,358 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:22:06,359 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:06,359 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:22:06,362 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:22:06,363 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:06" (1/1) ... [2019-10-22 11:22:06,366 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70f029b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:06, skipping insertion in model container [2019-10-22 11:22:06,366 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:06" (1/1) ... [2019-10-22 11:22:06,374 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:22:06,414 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:22:06,827 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:06,852 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:22:06,925 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:06,961 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:22:06,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:06 WrapperNode [2019-10-22 11:22:06,962 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:06,963 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:06,963 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:22:06,963 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:22:06,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:06" (1/1) ... [2019-10-22 11:22:06,988 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:06" (1/1) ... [2019-10-22 11:22:07,032 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:07,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:22:07,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:22:07,033 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:22:07,041 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:06" (1/1) ... [2019-10-22 11:22:07,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:06" (1/1) ... [2019-10-22 11:22:07,047 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:06" (1/1) ... [2019-10-22 11:22:07,048 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:06" (1/1) ... [2019-10-22 11:22:07,059 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:06" (1/1) ... [2019-10-22 11:22:07,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:06" (1/1) ... [2019-10-22 11:22:07,071 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:06" (1/1) ... [2019-10-22 11:22:07,074 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:22:07,075 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:22:07,075 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:22:07,075 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:22:07,080 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/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 11:22:07,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:22:07,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-10-22 11:22:07,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:22:07,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:22:08,042 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:22:08,042 INFO L284 CfgBuilder]: Removed 156 assume(true) statements. [2019-10-22 11:22:08,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:08 BoogieIcfgContainer [2019-10-22 11:22:08,043 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:22:08,045 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:22:08,045 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:22:08,048 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:22:08,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:22:06" (1/3) ... [2019-10-22 11:22:08,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ebf6035 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:08, skipping insertion in model container [2019-10-22 11:22:08,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:06" (2/3) ... [2019-10-22 11:22:08,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ebf6035 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:08, skipping insertion in model container [2019-10-22 11:22:08,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:08" (3/3) ... [2019-10-22 11:22:08,053 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product49.cil.c [2019-10-22 11:22:08,064 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:22:08,071 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:22:08,083 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:22:08,112 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:22:08,112 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:22:08,112 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:22:08,112 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:22:08,113 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:22:08,113 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:22:08,113 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:22:08,113 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:22:08,131 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states. [2019-10-22 11:22:08,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 11:22:08,138 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:08,139 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:08,142 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:08,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:08,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1641629540, now seen corresponding path program 1 times [2019-10-22 11:22:08,161 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:08,161 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1517277446] [2019-10-22 11:22:08,161 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/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 11:22:08,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:08,362 INFO L256 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-22 11:22:08,368 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:08,384 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 11:22:08,385 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:08,390 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 11:22:08,395 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1517277446] [2019-10-22 11:22:08,396 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:08,396 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 11:22:08,396 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470882502] [2019-10-22 11:22:08,401 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:22:08,401 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:08,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:22:08,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:22:08,419 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 2 states. [2019-10-22 11:22:08,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:08,453 INFO L93 Difference]: Finished difference Result 228 states and 347 transitions. [2019-10-22 11:22:08,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:22:08,455 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-10-22 11:22:08,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:08,468 INFO L225 Difference]: With dead ends: 228 [2019-10-22 11:22:08,468 INFO L226 Difference]: Without dead ends: 113 [2019-10-22 11:22:08,472 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 11:22:08,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-10-22 11:22:08,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2019-10-22 11:22:08,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-10-22 11:22:08,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 165 transitions. [2019-10-22 11:22:08,518 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 165 transitions. Word has length 16 [2019-10-22 11:22:08,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:08,519 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 165 transitions. [2019-10-22 11:22:08,519 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:22:08,519 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 165 transitions. [2019-10-22 11:22:08,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 11:22:08,520 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:08,520 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 11:22:08,721 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:08,722 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:08,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:08,722 INFO L82 PathProgramCache]: Analyzing trace with hash 594872643, now seen corresponding path program 1 times [2019-10-22 11:22:08,723 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:08,724 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1970734115] [2019-10-22 11:22:08,724 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/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 11:22:08,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:08,894 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:22:08,895 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:08,919 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 11:22:08,919 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:08,933 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 11:22:08,934 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1970734115] [2019-10-22 11:22:08,934 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:08,934 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-10-22 11:22:08,934 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393395952] [2019-10-22 11:22:08,939 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:22:08,939 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:08,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:22:08,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:22:08,940 INFO L87 Difference]: Start difference. First operand 113 states and 165 transitions. Second operand 4 states. [2019-10-22 11:22:08,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:08,985 INFO L93 Difference]: Finished difference Result 220 states and 324 transitions. [2019-10-22 11:22:08,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:22:08,988 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-10-22 11:22:08,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:08,990 INFO L225 Difference]: With dead ends: 220 [2019-10-22 11:22:08,990 INFO L226 Difference]: Without dead ends: 113 [2019-10-22 11:22:08,991 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 11:22:08,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-10-22 11:22:09,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2019-10-22 11:22:09,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-10-22 11:22:09,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 162 transitions. [2019-10-22 11:22:09,006 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 162 transitions. Word has length 17 [2019-10-22 11:22:09,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:09,006 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 162 transitions. [2019-10-22 11:22:09,007 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:22:09,007 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 162 transitions. [2019-10-22 11:22:09,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:22:09,007 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:09,008 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 11:22:09,211 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:09,212 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:09,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:09,212 INFO L82 PathProgramCache]: Analyzing trace with hash -1411237563, now seen corresponding path program 1 times [2019-10-22 11:22:09,213 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:09,213 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [270649335] [2019-10-22 11:22:09,213 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/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 11:22:09,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:09,395 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:22:09,396 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:09,403 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 11:22:09,404 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:09,406 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 11:22:09,406 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [270649335] [2019-10-22 11:22:09,406 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:09,406 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-22 11:22:09,407 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248005590] [2019-10-22 11:22:09,407 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:22:09,408 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:09,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:22:09,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:22:09,408 INFO L87 Difference]: Start difference. First operand 113 states and 162 transitions. Second operand 3 states. [2019-10-22 11:22:09,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:09,663 INFO L93 Difference]: Finished difference Result 267 states and 381 transitions. [2019-10-22 11:22:09,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:22:09,663 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-10-22 11:22:09,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:09,665 INFO L225 Difference]: With dead ends: 267 [2019-10-22 11:22:09,665 INFO L226 Difference]: Without dead ends: 160 [2019-10-22 11:22:09,666 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 11:22:09,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2019-10-22 11:22:09,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 154. [2019-10-22 11:22:09,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-10-22 11:22:09,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 213 transitions. [2019-10-22 11:22:09,706 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 213 transitions. Word has length 19 [2019-10-22 11:22:09,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:09,706 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 213 transitions. [2019-10-22 11:22:09,706 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:22:09,707 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 213 transitions. [2019-10-22 11:22:09,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 11:22:09,707 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:09,707 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 11:22:09,908 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:09,908 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:09,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:09,909 INFO L82 PathProgramCache]: Analyzing trace with hash 1180818292, now seen corresponding path program 1 times [2019-10-22 11:22:09,909 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:09,909 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1335047123] [2019-10-22 11:22:09,910 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/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 11:22:10,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:10,063 INFO L256 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:22:10,064 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:10,087 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 11:22:10,088 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:10,116 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 11:22:10,116 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1335047123] [2019-10-22 11:22:10,117 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:10,117 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-10-22 11:22:10,117 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421325926] [2019-10-22 11:22:10,117 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:22:10,118 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:10,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:22:10,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:22:10,118 INFO L87 Difference]: Start difference. First operand 154 states and 213 transitions. Second operand 6 states. [2019-10-22 11:22:10,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:10,311 INFO L93 Difference]: Finished difference Result 574 states and 792 transitions. [2019-10-22 11:22:10,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:22:10,311 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-10-22 11:22:10,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:10,314 INFO L225 Difference]: With dead ends: 574 [2019-10-22 11:22:10,314 INFO L226 Difference]: Without dead ends: 426 [2019-10-22 11:22:10,315 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 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 11:22:10,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2019-10-22 11:22:10,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 166. [2019-10-22 11:22:10,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2019-10-22 11:22:10,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 225 transitions. [2019-10-22 11:22:10,363 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 225 transitions. Word has length 25 [2019-10-22 11:22:10,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:10,364 INFO L462 AbstractCegarLoop]: Abstraction has 166 states and 225 transitions. [2019-10-22 11:22:10,364 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:22:10,364 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 225 transitions. [2019-10-22 11:22:10,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 11:22:10,365 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:10,365 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 11:22:10,566 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:10,566 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:10,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:10,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1573845302, now seen corresponding path program 1 times [2019-10-22 11:22:10,567 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:10,567 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1632636713] [2019-10-22 11:22:10,567 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/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 11:22:10,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:10,726 INFO L256 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:22:10,727 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:10,747 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 11:22:10,748 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:10,752 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 11:22:10,752 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1632636713] [2019-10-22 11:22:10,752 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:10,753 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:22:10,753 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909653675] [2019-10-22 11:22:10,753 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:22:10,754 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:10,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:22:10,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:22:10,754 INFO L87 Difference]: Start difference. First operand 166 states and 225 transitions. Second operand 5 states. [2019-10-22 11:22:10,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:10,964 INFO L93 Difference]: Finished difference Result 441 states and 585 transitions. [2019-10-22 11:22:10,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:22:10,965 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-10-22 11:22:10,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:10,967 INFO L225 Difference]: With dead ends: 441 [2019-10-22 11:22:10,967 INFO L226 Difference]: Without dead ends: 281 [2019-10-22 11:22:10,968 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 47 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 11:22:10,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2019-10-22 11:22:10,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 184. [2019-10-22 11:22:10,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2019-10-22 11:22:11,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 243 transitions. [2019-10-22 11:22:11,002 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 243 transitions. Word has length 25 [2019-10-22 11:22:11,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:11,003 INFO L462 AbstractCegarLoop]: Abstraction has 184 states and 243 transitions. [2019-10-22 11:22:11,003 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:22:11,004 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 243 transitions. [2019-10-22 11:22:11,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 11:22:11,004 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:11,004 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 11:22:11,206 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:11,207 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:11,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:11,207 INFO L82 PathProgramCache]: Analyzing trace with hash -58610951, now seen corresponding path program 1 times [2019-10-22 11:22:11,208 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:11,208 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [669732490] [2019-10-22 11:22:11,208 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/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 11:22:11,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:11,386 INFO L256 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:22:11,388 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:11,412 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 11:22:11,412 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:11,444 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 11:22:11,444 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [669732490] [2019-10-22 11:22:11,445 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:11,445 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-10-22 11:22:11,445 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716361725] [2019-10-22 11:22:11,445 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:22:11,446 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:11,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:22:11,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:22:11,446 INFO L87 Difference]: Start difference. First operand 184 states and 243 transitions. Second operand 8 states. [2019-10-22 11:22:11,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:11,969 INFO L93 Difference]: Finished difference Result 981 states and 1294 transitions. [2019-10-22 11:22:11,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-22 11:22:11,970 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2019-10-22 11:22:11,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:11,974 INFO L225 Difference]: With dead ends: 981 [2019-10-22 11:22:11,974 INFO L226 Difference]: Without dead ends: 759 [2019-10-22 11:22:11,975 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2019-10-22 11:22:11,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2019-10-22 11:22:12,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 336. [2019-10-22 11:22:12,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2019-10-22 11:22:12,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 436 transitions. [2019-10-22 11:22:12,012 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 436 transitions. Word has length 25 [2019-10-22 11:22:12,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:12,012 INFO L462 AbstractCegarLoop]: Abstraction has 336 states and 436 transitions. [2019-10-22 11:22:12,012 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:22:12,012 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 436 transitions. [2019-10-22 11:22:12,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-22 11:22:12,014 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:12,014 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] [2019-10-22 11:22:12,215 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:12,215 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:12,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:12,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1923955214, now seen corresponding path program 1 times [2019-10-22 11:22:12,216 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:12,216 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [417742231] [2019-10-22 11:22:12,216 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/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 11:22:12,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:12,355 INFO L256 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:22:12,356 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:12,363 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 11:22:12,363 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:12,366 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 11:22:12,366 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [417742231] [2019-10-22 11:22:12,366 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:12,367 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-22 11:22:12,367 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782792397] [2019-10-22 11:22:12,367 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:22:12,367 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:12,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:22:12,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:22:12,368 INFO L87 Difference]: Start difference. First operand 336 states and 436 transitions. Second operand 3 states. [2019-10-22 11:22:12,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:12,386 INFO L93 Difference]: Finished difference Result 336 states and 436 transitions. [2019-10-22 11:22:12,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:22:12,387 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2019-10-22 11:22:12,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:12,388 INFO L225 Difference]: With dead ends: 336 [2019-10-22 11:22:12,388 INFO L226 Difference]: Without dead ends: 152 [2019-10-22 11:22:12,389 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 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 11:22:12,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2019-10-22 11:22:12,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2019-10-22 11:22:12,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2019-10-22 11:22:12,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 202 transitions. [2019-10-22 11:22:12,405 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 202 transitions. Word has length 46 [2019-10-22 11:22:12,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:12,405 INFO L462 AbstractCegarLoop]: Abstraction has 152 states and 202 transitions. [2019-10-22 11:22:12,405 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:22:12,406 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 202 transitions. [2019-10-22 11:22:12,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-22 11:22:12,407 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:12,407 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] [2019-10-22 11:22:12,607 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:12,608 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:12,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:12,608 INFO L82 PathProgramCache]: Analyzing trace with hash -1506097615, now seen corresponding path program 1 times [2019-10-22 11:22:12,608 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:12,608 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [281980772] [2019-10-22 11:22:12,609 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/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 11:22:12,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:12,744 INFO L256 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:22:12,745 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:12,767 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 11:22:12,767 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:12,774 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 11:22:12,774 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [281980772] [2019-10-22 11:22:12,774 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:12,774 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:22:12,774 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130981749] [2019-10-22 11:22:12,775 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:22:12,775 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:12,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:22:12,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:22:12,776 INFO L87 Difference]: Start difference. First operand 152 states and 202 transitions. Second operand 5 states. [2019-10-22 11:22:12,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:12,846 INFO L93 Difference]: Finished difference Result 514 states and 704 transitions. [2019-10-22 11:22:12,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:22:12,847 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2019-10-22 11:22:12,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:12,849 INFO L225 Difference]: With dead ends: 514 [2019-10-22 11:22:12,849 INFO L226 Difference]: Without dead ends: 392 [2019-10-22 11:22:12,850 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 99 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 11:22:12,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2019-10-22 11:22:12,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 158. [2019-10-22 11:22:12,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-10-22 11:22:12,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 208 transitions. [2019-10-22 11:22:12,866 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 208 transitions. Word has length 51 [2019-10-22 11:22:12,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:12,866 INFO L462 AbstractCegarLoop]: Abstraction has 158 states and 208 transitions. [2019-10-22 11:22:12,866 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:22:12,867 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 208 transitions. [2019-10-22 11:22:12,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-22 11:22:12,868 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:12,868 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] [2019-10-22 11:22:13,068 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:13,069 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:13,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:13,069 INFO L82 PathProgramCache]: Analyzing trace with hash -1899124625, now seen corresponding path program 1 times [2019-10-22 11:22:13,069 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:13,069 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [464418293] [2019-10-22 11:22:13,070 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/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 11:22:13,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:13,199 INFO L256 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:22:13,200 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:13,221 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 11:22:13,222 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:13,225 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 11:22:13,226 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [464418293] [2019-10-22 11:22:13,226 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:13,226 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:22:13,226 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872381824] [2019-10-22 11:22:13,227 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:22:13,227 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:13,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:22:13,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:22:13,228 INFO L87 Difference]: Start difference. First operand 158 states and 208 transitions. Second operand 5 states. [2019-10-22 11:22:13,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:13,403 INFO L93 Difference]: Finished difference Result 414 states and 551 transitions. [2019-10-22 11:22:13,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:22:13,404 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2019-10-22 11:22:13,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:13,406 INFO L225 Difference]: With dead ends: 414 [2019-10-22 11:22:13,406 INFO L226 Difference]: Without dead ends: 412 [2019-10-22 11:22:13,406 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:22:13,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2019-10-22 11:22:13,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 158. [2019-10-22 11:22:13,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-10-22 11:22:13,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 207 transitions. [2019-10-22 11:22:13,424 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 207 transitions. Word has length 51 [2019-10-22 11:22:13,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:13,425 INFO L462 AbstractCegarLoop]: Abstraction has 158 states and 207 transitions. [2019-10-22 11:22:13,425 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:22:13,425 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 207 transitions. [2019-10-22 11:22:13,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-22 11:22:13,425 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:13,426 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:13,626 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:13,627 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:13,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:13,627 INFO L82 PathProgramCache]: Analyzing trace with hash 1033530397, now seen corresponding path program 1 times [2019-10-22 11:22:13,627 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:13,627 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [280070068] [2019-10-22 11:22:13,627 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/bin/utaipan/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:13,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:13,752 INFO L256 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-22 11:22:13,754 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:13,794 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 11:22:13,795 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:13,840 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 11:22:13,840 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [280070068] [2019-10-22 11:22:13,841 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405564790] [2019-10-22 11:22:13,841 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/bin/utaipan/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:22:13,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:13,969 INFO L256 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-22 11:22:13,971 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:13,988 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 11:22:13,988 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:13,999 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 11:22:14,000 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-22 11:22:14,000 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5] total 9 [2019-10-22 11:22:14,000 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120629215] [2019-10-22 11:22:14,001 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-22 11:22:14,001 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:14,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-22 11:22:14,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-10-22 11:22:14,002 INFO L87 Difference]: Start difference. First operand 158 states and 207 transitions. Second operand 10 states. [2019-10-22 11:22:14,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:14,949 INFO L93 Difference]: Finished difference Result 1049 states and 1407 transitions. [2019-10-22 11:22:14,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-22 11:22:14,949 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 52 [2019-10-22 11:22:14,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:14,953 INFO L225 Difference]: With dead ends: 1049 [2019-10-22 11:22:14,953 INFO L226 Difference]: Without dead ends: 921 [2019-10-22 11:22:14,954 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 195 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2019-10-22 11:22:14,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2019-10-22 11:22:14,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 289. [2019-10-22 11:22:14,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2019-10-22 11:22:14,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 386 transitions. [2019-10-22 11:22:14,989 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 386 transitions. Word has length 52 [2019-10-22 11:22:14,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:14,989 INFO L462 AbstractCegarLoop]: Abstraction has 289 states and 386 transitions. [2019-10-22 11:22:14,989 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-22 11:22:14,989 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 386 transitions. [2019-10-22 11:22:14,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-10-22 11:22:14,990 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:14,990 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:15,391 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:15,391 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:15,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:15,392 INFO L82 PathProgramCache]: Analyzing trace with hash 2113506808, now seen corresponding path program 2 times [2019-10-22 11:22:15,392 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:15,392 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1198366629] [2019-10-22 11:22:15,393 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/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 11:22:17,258 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-22 11:22:17,259 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-22 11:22:17,296 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-22 11:22:17,299 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:17,352 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:17,382 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 11:22:17,382 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:17,424 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 11:22:17,424 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1198366629] [2019-10-22 11:22:17,425 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:17,425 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2019-10-22 11:22:17,425 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349326330] [2019-10-22 11:22:17,425 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 11:22:17,425 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:17,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 11:22:17,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:22:17,426 INFO L87 Difference]: Start difference. First operand 289 states and 386 transitions. Second operand 9 states. [2019-10-22 11:22:18,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:18,403 INFO L93 Difference]: Finished difference Result 1184 states and 1591 transitions. [2019-10-22 11:22:18,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-22 11:22:18,404 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 73 [2019-10-22 11:22:18,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:18,407 INFO L225 Difference]: With dead ends: 1184 [2019-10-22 11:22:18,408 INFO L226 Difference]: Without dead ends: 845 [2019-10-22 11:22:18,410 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=148, Invalid=314, Unknown=0, NotChecked=0, Total=462 [2019-10-22 11:22:18,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2019-10-22 11:22:18,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 332. [2019-10-22 11:22:18,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2019-10-22 11:22:18,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 440 transitions. [2019-10-22 11:22:18,456 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 440 transitions. Word has length 73 [2019-10-22 11:22:18,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:18,456 INFO L462 AbstractCegarLoop]: Abstraction has 332 states and 440 transitions. [2019-10-22 11:22:18,456 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 11:22:18,456 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 440 transitions. [2019-10-22 11:22:18,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-10-22 11:22:18,457 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:18,457 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:18,658 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:18,658 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:18,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:18,658 INFO L82 PathProgramCache]: Analyzing trace with hash -1906700874, now seen corresponding path program 1 times [2019-10-22 11:22:18,659 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:18,659 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1089296607] [2019-10-22 11:22:18,659 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/bin/utaipan/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:18,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:18,813 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:22:18,815 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:18,841 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 11:22:18,843 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:18,869 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 11:22:18,870 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1089296607] [2019-10-22 11:22:18,870 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:18,870 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-10-22 11:22:18,870 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155459972] [2019-10-22 11:22:18,871 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:22:18,871 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:18,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:22:18,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:22:18,872 INFO L87 Difference]: Start difference. First operand 332 states and 440 transitions. Second operand 8 states. [2019-10-22 11:22:18,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:18,926 INFO L93 Difference]: Finished difference Result 499 states and 655 transitions. [2019-10-22 11:22:18,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:22:18,927 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 73 [2019-10-22 11:22:18,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:18,927 INFO L225 Difference]: With dead ends: 499 [2019-10-22 11:22:18,927 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:22:18,928 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-10-22 11:22:18,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:22:18,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:22:18,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:22:18,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:22:18,929 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 73 [2019-10-22 11:22:18,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:18,929 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:22:18,929 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:22:18,929 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:22:18,929 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:22:19,130 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:19,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:22:19,521 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 114 [2019-10-22 11:22:19,849 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 114 [2019-10-22 11:22:20,022 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 108 [2019-10-22 11:22:20,176 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 97 [2019-10-22 11:22:20,401 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 121 [2019-10-22 11:22:21,271 WARN L191 SmtUtils]: Spent 665.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 30 [2019-10-22 11:22:21,392 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 29 [2019-10-22 11:22:21,701 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 23 [2019-10-22 11:22:22,205 WARN L191 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 30 [2019-10-22 11:22:22,653 WARN L191 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 30 [2019-10-22 11:22:22,980 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 24 [2019-10-22 11:22:23,521 WARN L191 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 21 [2019-10-22 11:22:23,683 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 26 [2019-10-22 11:22:23,809 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 24 [2019-10-22 11:22:23,811 INFO L443 ceAbstractionStarter]: For program point L433(lines 433 437) no Hoare annotation was computed. [2019-10-22 11:22:23,811 INFO L443 ceAbstractionStarter]: For program point L433-2(lines 433 437) no Hoare annotation was computed. [2019-10-22 11:22:23,811 INFO L443 ceAbstractionStarter]: For program point L433-3(lines 433 437) no Hoare annotation was computed. [2019-10-22 11:22:23,811 INFO L443 ceAbstractionStarter]: For program point L433-5(lines 433 437) no Hoare annotation was computed. [2019-10-22 11:22:23,812 INFO L443 ceAbstractionStarter]: For program point L433-6(lines 433 437) no Hoare annotation was computed. [2019-10-22 11:22:23,812 INFO L443 ceAbstractionStarter]: For program point L433-8(lines 433 437) no Hoare annotation was computed. [2019-10-22 11:22:23,812 INFO L443 ceAbstractionStarter]: For program point L433-9(lines 433 437) no Hoare annotation was computed. [2019-10-22 11:22:23,812 INFO L443 ceAbstractionStarter]: For program point L433-11(lines 433 437) no Hoare annotation was computed. [2019-10-22 11:22:23,812 INFO L443 ceAbstractionStarter]: For program point L433-12(lines 433 437) no Hoare annotation was computed. [2019-10-22 11:22:23,812 INFO L443 ceAbstractionStarter]: For program point L433-14(lines 433 437) no Hoare annotation was computed. [2019-10-22 11:22:23,812 INFO L443 ceAbstractionStarter]: For program point L433-15(lines 433 437) no Hoare annotation was computed. [2019-10-22 11:22:23,812 INFO L443 ceAbstractionStarter]: For program point L433-17(lines 433 437) no Hoare annotation was computed. [2019-10-22 11:22:23,812 INFO L443 ceAbstractionStarter]: For program point L335(lines 335 343) no Hoare annotation was computed. [2019-10-22 11:22:23,812 INFO L443 ceAbstractionStarter]: For program point L335-1(lines 335 343) no Hoare annotation was computed. [2019-10-22 11:22:23,812 INFO L443 ceAbstractionStarter]: For program point L335-2(lines 335 343) no Hoare annotation was computed. [2019-10-22 11:22:23,812 INFO L439 ceAbstractionStarter]: At program point L172-2(lines 172 186) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:22:23,813 INFO L443 ceAbstractionStarter]: For program point L503(lines 503 514) no Hoare annotation was computed. [2019-10-22 11:22:23,813 INFO L443 ceAbstractionStarter]: For program point L305(lines 305 322) no Hoare annotation was computed. [2019-10-22 11:22:23,813 INFO L443 ceAbstractionStarter]: For program point L305-1(lines 305 322) no Hoare annotation was computed. [2019-10-22 11:22:23,813 INFO L443 ceAbstractionStarter]: For program point L305-2(lines 305 322) no Hoare annotation was computed. [2019-10-22 11:22:23,813 INFO L443 ceAbstractionStarter]: For program point L305-3(lines 305 322) no Hoare annotation was computed. [2019-10-22 11:22:23,813 INFO L443 ceAbstractionStarter]: For program point L173(line 173) no Hoare annotation was computed. [2019-10-22 11:22:23,813 INFO L443 ceAbstractionStarter]: For program point L305-4(lines 305 322) no Hoare annotation was computed. [2019-10-22 11:22:23,813 INFO L443 ceAbstractionStarter]: For program point L140(lines 140 146) no Hoare annotation was computed. [2019-10-22 11:22:23,813 INFO L443 ceAbstractionStarter]: For program point L305-5(lines 305 322) no Hoare annotation was computed. [2019-10-22 11:22:23,813 INFO L443 ceAbstractionStarter]: For program point L140-1(lines 140 146) no Hoare annotation was computed. [2019-10-22 11:22:23,813 INFO L443 ceAbstractionStarter]: For program point L140-2(lines 140 146) no Hoare annotation was computed. [2019-10-22 11:22:23,813 INFO L443 ceAbstractionStarter]: For program point L140-3(lines 140 146) no Hoare annotation was computed. [2019-10-22 11:22:23,813 INFO L443 ceAbstractionStarter]: For program point L140-4(lines 140 146) no Hoare annotation was computed. [2019-10-22 11:22:23,813 INFO L443 ceAbstractionStarter]: For program point L140-5(lines 140 146) no Hoare annotation was computed. [2019-10-22 11:22:23,814 INFO L439 ceAbstractionStarter]: At program point L273(lines 272 291) the Hoare annotation is: (let ((.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse3 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse0 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and .cse0 (and .cse1 .cse2 .cse3)) (and (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) (and .cse0 (and .cse1 .cse2))) (and (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) .cse3 (and .cse0 .cse2) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6 (_ bv0 32)))))) [2019-10-22 11:22:23,814 INFO L443 ceAbstractionStarter]: For program point L273-1(lines 273 279) no Hoare annotation was computed. [2019-10-22 11:22:23,814 INFO L439 ceAbstractionStarter]: At program point L273-2(lines 272 291) 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 11:22:23,814 INFO L439 ceAbstractionStarter]: At program point L273-3(lines 272 291) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:22:23,814 INFO L443 ceAbstractionStarter]: For program point L75(lines 75 79) no Hoare annotation was computed. [2019-10-22 11:22:23,814 INFO L443 ceAbstractionStarter]: For program point L571(lines 571 584) no Hoare annotation was computed. [2019-10-22 11:22:23,814 INFO L439 ceAbstractionStarter]: At program point L571-1(lines 1 953) the Hoare annotation is: (let ((.cse0 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse1 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and .cse0 (and (= (_ bv0 32) ~pumpRunning~0) .cse1 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)))) (and (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) .cse0 .cse1 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6 (_ bv0 32)))))) [2019-10-22 11:22:23,814 INFO L443 ceAbstractionStarter]: For program point L571-2(lines 571 584) no Hoare annotation was computed. [2019-10-22 11:22:23,814 INFO L439 ceAbstractionStarter]: At program point L571-3(lines 1 953) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:22:23,814 INFO L439 ceAbstractionStarter]: At program point L439(lines 424 442) the Hoare annotation is: false [2019-10-22 11:22:23,814 INFO L443 ceAbstractionStarter]: For program point L571-4(lines 571 584) no Hoare annotation was computed. [2019-10-22 11:22:23,815 INFO L439 ceAbstractionStarter]: At program point L439-1(lines 424 442) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) (and .cse0 .cse1 .cse2)) (and .cse0 .cse1 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32)) .cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))))) [2019-10-22 11:22:23,815 INFO L439 ceAbstractionStarter]: At program point L571-5(lines 1 953) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:22:23,815 INFO L439 ceAbstractionStarter]: At program point L439-2(lines 424 442) the Hoare annotation is: false [2019-10-22 11:22:23,815 INFO L439 ceAbstractionStarter]: At program point L439-3(lines 424 442) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv0 32))) [2019-10-22 11:22:23,815 INFO L439 ceAbstractionStarter]: At program point L439-4(lines 424 442) the Hoare annotation is: false [2019-10-22 11:22:23,818 INFO L439 ceAbstractionStarter]: At program point L439-5(lines 424 442) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv0 32)) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:22:23,818 INFO L443 ceAbstractionStarter]: For program point L176(lines 176 180) no Hoare annotation was computed. [2019-10-22 11:22:23,818 INFO L443 ceAbstractionStarter]: For program point L176-1(lines 273 279) no Hoare annotation was computed. [2019-10-22 11:22:23,818 INFO L443 ceAbstractionStarter]: For program point L44(line 44) no Hoare annotation was computed. [2019-10-22 11:22:23,818 INFO L443 ceAbstractionStarter]: For program point L44-1(line 44) no Hoare annotation was computed. [2019-10-22 11:22:23,818 INFO L443 ceAbstractionStarter]: For program point L44-2(line 44) no Hoare annotation was computed. [2019-10-22 11:22:23,819 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2019-10-22 11:22:23,819 INFO L443 ceAbstractionStarter]: For program point L474(lines 473 518) no Hoare annotation was computed. [2019-10-22 11:22:23,819 INFO L443 ceAbstractionStarter]: For program point L309(lines 309 317) no Hoare annotation was computed. [2019-10-22 11:22:23,819 INFO L443 ceAbstractionStarter]: For program point L309-1(lines 309 317) no Hoare annotation was computed. [2019-10-22 11:22:23,819 INFO L443 ceAbstractionStarter]: For program point L309-2(lines 309 317) no Hoare annotation was computed. [2019-10-22 11:22:23,819 INFO L443 ceAbstractionStarter]: For program point L309-3(lines 309 317) no Hoare annotation was computed. [2019-10-22 11:22:23,819 INFO L443 ceAbstractionStarter]: For program point L309-4(lines 309 317) no Hoare annotation was computed. [2019-10-22 11:22:23,819 INFO L443 ceAbstractionStarter]: For program point L309-5(lines 309 317) no Hoare annotation was computed. [2019-10-22 11:22:23,819 INFO L443 ceAbstractionStarter]: For program point L475(lines 475 479) no Hoare annotation was computed. [2019-10-22 11:22:23,819 INFO L439 ceAbstractionStarter]: At program point L145(lines 136 149) the Hoare annotation is: false [2019-10-22 11:22:23,820 INFO L439 ceAbstractionStarter]: At program point L145-1(lines 136 149) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) .cse0 .cse1 .cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (and (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) (and .cse0 .cse1 .cse2)))) [2019-10-22 11:22:23,820 INFO L439 ceAbstractionStarter]: At program point L145-2(lines 136 149) the Hoare annotation is: false [2019-10-22 11:22:23,820 INFO L439 ceAbstractionStarter]: At program point L145-3(lines 136 149) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:22:23,820 INFO L439 ceAbstractionStarter]: At program point L145-4(lines 136 149) the Hoare annotation is: false [2019-10-22 11:22:23,820 INFO L439 ceAbstractionStarter]: At program point L145-5(lines 136 149) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:22:23,820 INFO L443 ceAbstractionStarter]: For program point L575(lines 575 581) no Hoare annotation was computed. [2019-10-22 11:22:23,820 INFO L443 ceAbstractionStarter]: For program point L509(lines 509 513) no Hoare annotation was computed. [2019-10-22 11:22:23,820 INFO L443 ceAbstractionStarter]: For program point L575-2(lines 575 581) no Hoare annotation was computed. [2019-10-22 11:22:23,820 INFO L443 ceAbstractionStarter]: For program point L509-2(lines 273 279) no Hoare annotation was computed. [2019-10-22 11:22:23,821 INFO L443 ceAbstractionStarter]: For program point L575-4(lines 575 581) no Hoare annotation was computed. [2019-10-22 11:22:23,821 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2019-10-22 11:22:23,821 INFO L439 ceAbstractionStarter]: At program point L280(lines 280 286) the Hoare annotation is: (let ((.cse0 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse1 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) (and .cse0 .cse1)) (and .cse0 (and (= (_ bv0 32) ~pumpRunning~0) .cse1 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)))))) [2019-10-22 11:22:23,821 INFO L439 ceAbstractionStarter]: At program point L280-1(lines 280 286) 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 11:22:23,821 INFO L439 ceAbstractionStarter]: At program point L280-2(lines 280 286) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:22:23,821 INFO L443 ceAbstractionStarter]: For program point L248(lines 248 255) no Hoare annotation was computed. [2019-10-22 11:22:23,821 INFO L446 ceAbstractionStarter]: At program point L248-1(lines 248 255) the Hoare annotation is: true [2019-10-22 11:22:23,821 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:22:23,821 INFO L443 ceAbstractionStarter]: For program point L483(lines 483 489) no Hoare annotation was computed. [2019-10-22 11:22:23,822 INFO L439 ceAbstractionStarter]: At program point L483-1(lines 483 489) the Hoare annotation is: (let ((.cse0 (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32))) (.cse1 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0)) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and .cse0 (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) (and .cse1 .cse2) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6 (_ bv0 32)))) (and .cse1 (and .cse3 .cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)))) (and .cse0 (and .cse1 (and .cse3 .cse2))))) [2019-10-22 11:22:23,822 INFO L439 ceAbstractionStarter]: At program point L384(lines 379 387) the Hoare annotation is: false [2019-10-22 11:22:23,822 INFO L439 ceAbstractionStarter]: At program point L384-1(lines 379 387) the Hoare annotation is: false [2019-10-22 11:22:23,822 INFO L439 ceAbstractionStarter]: At program point L384-2(lines 379 387) the Hoare annotation is: false [2019-10-22 11:22:23,822 INFO L443 ceAbstractionStarter]: For program point L87(lines 87 91) no Hoare annotation was computed. [2019-10-22 11:22:23,822 INFO L439 ceAbstractionStarter]: At program point L550(lines 1 953) 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 11:22:23,822 INFO L443 ceAbstractionStarter]: For program point L452(lines 452 456) no Hoare annotation was computed. [2019-10-22 11:22:23,822 INFO L443 ceAbstractionStarter]: For program point L452-2(lines 452 456) no Hoare annotation was computed. [2019-10-22 11:22:23,822 INFO L443 ceAbstractionStarter]: For program point L452-3(lines 452 456) no Hoare annotation was computed. [2019-10-22 11:22:23,823 INFO L443 ceAbstractionStarter]: For program point L452-5(lines 452 456) no Hoare annotation was computed. [2019-10-22 11:22:23,823 INFO L443 ceAbstractionStarter]: For program point L452-6(lines 452 456) no Hoare annotation was computed. [2019-10-22 11:22:23,823 INFO L439 ceAbstractionStarter]: At program point L221(lines 217 223) 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 11:22:23,823 INFO L443 ceAbstractionStarter]: For program point L452-8(lines 452 456) no Hoare annotation was computed. [2019-10-22 11:22:23,823 INFO L439 ceAbstractionStarter]: At program point L155(lines 150 158) the Hoare annotation is: (and (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32)) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6 (_ bv0 32)))) [2019-10-22 11:22:23,824 INFO L439 ceAbstractionStarter]: At program point L155-1(lines 150 158) the Hoare annotation is: false [2019-10-22 11:22:23,824 INFO L439 ceAbstractionStarter]: At program point L155-2(lines 150 158) the Hoare annotation is: false [2019-10-22 11:22:23,824 INFO L439 ceAbstractionStarter]: At program point L519(lines 472 520) 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 11:22:23,824 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2019-10-22 11:22:23,825 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:22:23,825 INFO L446 ceAbstractionStarter]: At program point L257(lines 238 260) the Hoare annotation is: true [2019-10-22 11:22:23,825 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:22:23,825 INFO L439 ceAbstractionStarter]: At program point L458(lines 443 461) the Hoare annotation is: (and (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) (= ULTIMATE.start_isLowWaterLevel_~tmp~4 (_ bv0 32)) (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32)) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ULTIMATE.start_isLowWaterLevel_~tmp___0~1 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd |ULTIMATE.start_isLowWaterLevel_#res| (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6 (_ bv0 32)))) [2019-10-22 11:22:23,825 INFO L439 ceAbstractionStarter]: At program point L458-1(lines 443 461) the Hoare annotation is: false [2019-10-22 11:22:23,825 INFO L439 ceAbstractionStarter]: At program point L458-2(lines 443 461) the Hoare annotation is: false [2019-10-22 11:22:23,825 INFO L439 ceAbstractionStarter]: At program point L558(lines 553 561) 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 11:22:23,825 INFO L443 ceAbstractionStarter]: For program point L63(lines 63 67) no Hoare annotation was computed. [2019-10-22 11:22:23,825 INFO L443 ceAbstractionStarter]: For program point L63-3(lines 63 67) no Hoare annotation was computed. [2019-10-22 11:22:23,826 INFO L443 ceAbstractionStarter]: For program point L63-6(lines 63 67) no Hoare annotation was computed. [2019-10-22 11:22:23,826 INFO L443 ceAbstractionStarter]: For program point L493(lines 493 499) no Hoare annotation was computed. [2019-10-22 11:22:23,826 INFO L439 ceAbstractionStarter]: At program point L493-1(lines 493 499) the Hoare annotation is: (let ((.cse0 (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32))) (.cse1 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0)) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and .cse0 (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) (and .cse1 .cse2) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6 (_ bv0 32)))) (and .cse1 (and .cse3 .cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)))) (and .cse0 (and .cse1 (and .cse3 .cse2))))) [2019-10-22 11:22:23,826 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 11:22:23,826 INFO L439 ceAbstractionStarter]: At program point L132(lines 127 135) the Hoare annotation is: (let ((.cse0 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse1 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and (= (_ bv0 32) ~pumpRunning~0) .cse0 .cse1 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) (and (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) .cse0 .cse1))) [2019-10-22 11:22:23,826 INFO L439 ceAbstractionStarter]: At program point L132-1(lines 127 135) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:22:23,826 INFO L439 ceAbstractionStarter]: At program point L132-2(lines 127 135) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:22:23,826 INFO L443 ceAbstractionStarter]: For program point L331(lines 331 348) no Hoare annotation was computed. [2019-10-22 11:22:23,826 INFO L443 ceAbstractionStarter]: For program point L331-1(lines 331 348) no Hoare annotation was computed. [2019-10-22 11:22:23,827 INFO L443 ceAbstractionStarter]: For program point L331-2(lines 331 348) no Hoare annotation was computed. [2019-10-22 11:22:23,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:22:23 BoogieIcfgContainer [2019-10-22 11:22:23,876 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:22:23,876 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:22:23,876 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:22:23,876 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:22:23,877 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:08" (3/4) ... [2019-10-22 11:22:23,884 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:22:23,913 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2019-10-22 11:22:23,917 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2019-10-22 11:22:23,917 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-10-22 11:22:23,918 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 11:22:23,918 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 11:22:23,919 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 11:22:23,954 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~bvslt32(splverifierCounter, 4bv32) && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) [2019-10-22 11:22:23,956 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) || (~bvslt32(splverifierCounter, 4bv32) && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || (~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32) && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) [2019-10-22 11:22:23,956 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) || (~bvslt32(splverifierCounter, 4bv32) && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || (~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32) && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) [2019-10-22 11:22:23,957 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~bvslt32(splverifierCounter, 4bv32) && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32) && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32)) || (((!(0bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) [2019-10-22 11:22:23,957 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:22:23,957 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:22:23,957 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:22:23,958 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) || (((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) [2019-10-22 11:22:23,958 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((1bv32 == \result && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 [2019-10-22 11:22:23,958 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:22:23,958 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:22:23,958 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(0bv32 == \result) && ~bvslt32(splverifierCounter, 4bv32)) && \result == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && !(tmp == 0bv32) [2019-10-22 11:22:23,959 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0bv32 == pumpRunning && \result == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && tmp___0 == 0bv32 [2019-10-22 11:22:23,959 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1bv32 == \result && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && (0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) [2019-10-22 11:22:23,959 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:22:23,960 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(0bv32 == \result) && tmp == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && \result == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && !(tmp == 0bv32) [2019-10-22 11:22:23,960 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:22:23,960 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && (0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) || (((((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && \result == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp___0 == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) [2019-10-22 11:22:23,960 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1bv32 == \result && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:22:23,961 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((0bv32 == pumpRunning && \result == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && tmp___0 == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:22:24,037 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ea9dfb23-eab4-42ec-9fe4-5e0051d065ae/bin/utaipan/witness.graphml [2019-10-22 11:22:24,037 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:22:24,038 INFO L168 Benchmark]: Toolchain (without parser) took 17680.58 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 321.4 MB). Free memory was 947.0 MB in the beginning and 1.2 GB in the end (delta: -231.7 MB). Peak memory consumption was 89.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:24,039 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:24,039 INFO L168 Benchmark]: CACSL2BoogieTranslator took 603.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -132.5 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:24,040 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:24,040 INFO L168 Benchmark]: Boogie Preprocessor took 42.32 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:24,040 INFO L168 Benchmark]: RCFGBuilder took 968.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 997.0 MB in the end (delta: 68.5 MB). Peak memory consumption was 68.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:24,041 INFO L168 Benchmark]: TraceAbstraction took 15831.10 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 222.3 MB). Free memory was 997.0 MB in the beginning and 1.2 GB in the end (delta: -192.5 MB). Peak memory consumption was 389.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:24,041 INFO L168 Benchmark]: Witness Printer took 160.92 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:24,043 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 603.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -132.5 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 69.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.32 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 968.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 997.0 MB in the end (delta: 68.5 MB). Peak memory consumption was 68.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 15831.10 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 222.3 MB). Free memory was 997.0 MB in the beginning and 1.2 GB in the end (delta: -192.5 MB). Peak memory consumption was 389.7 MB. Max. memory is 11.5 GB. * Witness Printer took 160.92 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 44]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 44]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 150]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 150]: Loop Invariant Derived loop invariant: ((((!(0bv32 == \result) && ~bvslt32(splverifierCounter, 4bv32)) && \result == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && !(tmp == 0bv32) - InvariantResult [Line: 493]: Loop Invariant Derived loop invariant: ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) || (~bvslt32(splverifierCounter, 4bv32) && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || (~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32) && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) - InvariantResult [Line: 217]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 443]: Loop Invariant Derived loop invariant: (((((((!(0bv32 == \result) && tmp == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && \result == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && !(tmp == 0bv32) - InvariantResult [Line: 424]: Loop Invariant Derived loop invariant: (((0bv32 == pumpRunning && \result == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && tmp___0 == 0bv32 - InvariantResult [Line: 379]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 424]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 238]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 424]: Loop Invariant Derived loop invariant: (((((0bv32 == pumpRunning && \result == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && tmp___0 == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 472]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 248]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 150]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 272]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 553]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: ((((1bv32 == \result && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && (0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 483]: Loop Invariant Derived loop invariant: ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) || (~bvslt32(splverifierCounter, 4bv32) && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || (~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32) && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) - InvariantResult [Line: 272]: Loop Invariant Derived loop invariant: ((~bvslt32(splverifierCounter, 4bv32) && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32) && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32)) || (((!(0bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 424]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 424]: Loop Invariant Derived loop invariant: (~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && (0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) || (((((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && \result == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp___0 == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) - InvariantResult [Line: 379]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 424]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 379]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 443]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: (((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 443]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 280]: Loop Invariant Derived loop invariant: (((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: ((((1bv32 == \result && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 280]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 280]: Loop Invariant Derived loop invariant: (~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) || (~bvslt32(splverifierCounter, 4bv32) && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: ((1bv32 == \result && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 272]: Loop Invariant Derived loop invariant: (((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (~bvslt32(splverifierCounter, 4bv32) && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: ((((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) || (((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 117 locations, 3 error locations. Result: SAFE, OverallTime: 15.7s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.6s, HoareTripleCheckerStatistics: 1810 SDtfs, 4256 SDslu, 4591 SDs, 0 SdLazy, 945 SolverSat, 219 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1089 GetRequests, 995 SyntacticMatches, 1 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=336occurred 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: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 2419 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 42 LocationsWithAnnotation, 42 PreInvPairs, 143 NumberOfFragments, 776 HoareAnnotationTreeSize, 42 FomulaSimplifications, 764767 FormulaSimplificationTreeSizeReduction, 1.3s HoareSimplificationTime, 42 FomulaSimplificationsInter, 77991 FormulaSimplificationTreeSizeReductionInter, 3.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 525 NumberOfCodeBlocks, 525 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1024 ConstructedInterpolants, 0 QuantifiedInterpolants, 101828 SizeOfPredicates, 42 NumberOfNonLiveVariables, 2705 ConjunctsInSsa, 64 ConjunctsInUnsatCore, 26 InterpolantComputations, 22 PerfectInterpolantSequences, 276/312 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...