./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label20_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fb718951-b4b8-4fbe-9e26-88010d2a740b/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fb718951-b4b8-4fbe-9e26-88010d2a740b/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fb718951-b4b8-4fbe-9e26-88010d2a740b/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fb718951-b4b8-4fbe-9e26-88010d2a740b/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label20_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fb718951-b4b8-4fbe-9e26-88010d2a740b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fb718951-b4b8-4fbe-9e26-88010d2a740b/bin-2019/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 5360c3d4aebe9582cd01259f723ea710f280bf1f ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 14:30:24,949 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:30:24,950 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:30:24,958 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:30:24,958 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:30:24,958 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:30:24,959 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:30:24,960 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:30:24,961 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:30:24,961 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:30:24,961 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:30:24,962 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:30:24,962 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:30:24,963 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:30:24,964 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:30:24,964 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:30:24,965 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:30:24,966 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:30:24,968 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:30:24,969 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:30:24,970 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:30:24,971 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:30:24,973 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:30:24,973 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:30:24,973 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:30:24,974 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:30:24,975 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:30:24,975 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:30:24,976 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:30:24,977 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:30:24,977 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:30:24,977 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:30:24,977 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:30:24,978 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:30:24,979 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:30:24,979 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:30:24,979 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fb718951-b4b8-4fbe-9e26-88010d2a740b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 14:30:24,989 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:30:24,990 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:30:24,990 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:30:24,990 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 14:30:24,990 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 14:30:24,991 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 14:30:24,991 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 14:30:24,991 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 14:30:24,991 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 14:30:24,991 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 14:30:24,991 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 14:30:24,991 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 14:30:24,991 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 14:30:24,992 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:30:24,992 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:30:24,992 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 14:30:24,992 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:30:24,992 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:30:24,992 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 14:30:24,992 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:30:24,993 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 14:30:24,993 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:30:24,993 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:30:24,993 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:30:24,993 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 14:30:24,993 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:30:24,993 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:30:24,993 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:30:24,993 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:30:24,994 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:30:24,994 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:30:24,994 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:30:24,994 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 14:30:24,995 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 14:30:24,995 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:30:24,995 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 14:30:24,995 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 14:30:24,995 INFO L133 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_fb718951-b4b8-4fbe-9e26-88010d2a740b/bin-2019/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 -> 5360c3d4aebe9582cd01259f723ea710f280bf1f [2018-11-18 14:30:25,022 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:30:25,031 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:30:25,033 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:30:25,033 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:30:25,034 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:30:25,034 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fb718951-b4b8-4fbe-9e26-88010d2a740b/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem02_label20_true-unreach-call_false-termination.c [2018-11-18 14:30:25,071 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fb718951-b4b8-4fbe-9e26-88010d2a740b/bin-2019/utaipan/data/bba4a0102/d0f7bdedabe04cc19a43f95e791c5d64/FLAG2ca7e8548 [2018-11-18 14:30:25,470 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:30:25,471 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fb718951-b4b8-4fbe-9e26-88010d2a740b/sv-benchmarks/c/eca-rers2012/Problem02_label20_true-unreach-call_false-termination.c [2018-11-18 14:30:25,480 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fb718951-b4b8-4fbe-9e26-88010d2a740b/bin-2019/utaipan/data/bba4a0102/d0f7bdedabe04cc19a43f95e791c5d64/FLAG2ca7e8548 [2018-11-18 14:30:25,493 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fb718951-b4b8-4fbe-9e26-88010d2a740b/bin-2019/utaipan/data/bba4a0102/d0f7bdedabe04cc19a43f95e791c5d64 [2018-11-18 14:30:25,495 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:30:25,496 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 14:30:25,497 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:30:25,497 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:30:25,501 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:30:25,502 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:30:25" (1/1) ... [2018-11-18 14:30:25,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38b257b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:30:25, skipping insertion in model container [2018-11-18 14:30:25,505 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:30:25" (1/1) ... [2018-11-18 14:30:25,513 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:30:25,576 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:30:25,921 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:30:25,924 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:30:26,003 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:30:26,022 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:30:26,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:30:26 WrapperNode [2018-11-18 14:30:26,023 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:30:26,023 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 14:30:26,024 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 14:30:26,024 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 14:30:26,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:30:26" (1/1) ... [2018-11-18 14:30:26,123 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:30:26" (1/1) ... [2018-11-18 14:30:26,131 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 14:30:26,132 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:30:26,133 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:30:26,133 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:30:26,140 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:30:26" (1/1) ... [2018-11-18 14:30:26,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:30:26" (1/1) ... [2018-11-18 14:30:26,143 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:30:26" (1/1) ... [2018-11-18 14:30:26,144 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:30:26" (1/1) ... [2018-11-18 14:30:26,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:30:26" (1/1) ... [2018-11-18 14:30:26,200 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:30:26" (1/1) ... [2018-11-18 14:30:26,204 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:30:26" (1/1) ... [2018-11-18 14:30:26,210 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:30:26,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:30:26,211 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:30:26,211 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:30:26,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:30:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fb718951-b4b8-4fbe-9e26-88010d2a740b/bin-2019/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 [2018-11-18 14:30:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 14:30:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:30:26,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:30:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-18 14:30:26,267 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-18 14:30:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:30:26,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:30:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:30:26,268 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:30:28,161 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:30:28,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:30:28 BoogieIcfgContainer [2018-11-18 14:30:28,162 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:30:28,163 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:30:28,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:30:28,165 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:30:28,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:30:25" (1/3) ... [2018-11-18 14:30:28,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@366e9bdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:30:28, skipping insertion in model container [2018-11-18 14:30:28,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:30:26" (2/3) ... [2018-11-18 14:30:28,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@366e9bdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:30:28, skipping insertion in model container [2018-11-18 14:30:28,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:30:28" (3/3) ... [2018-11-18 14:30:28,173 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label20_true-unreach-call_false-termination.c [2018-11-18 14:30:28,180 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:30:28,186 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 14:30:28,197 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 14:30:28,225 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:30:28,225 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 14:30:28,225 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:30:28,225 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:30:28,225 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:30:28,226 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:30:28,226 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:30:28,226 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:30:28,251 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2018-11-18 14:30:28,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-11-18 14:30:28,260 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:30:28,261 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:30:28,263 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:30:28,267 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:30:28,268 INFO L82 PathProgramCache]: Analyzing trace with hash 915772480, now seen corresponding path program 1 times [2018-11-18 14:30:28,269 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:30:28,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:30:28,300 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:30:28,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:30:28,301 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:30:28,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:30:28,732 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-18 14:30:28,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:30:28,770 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:30:28,770 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 14:30:28,771 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:30:28,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 14:30:28,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:30:28,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:30:28,788 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 3 states. [2018-11-18 14:30:29,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:30:29,559 INFO L93 Difference]: Finished difference Result 618 states and 1056 transitions. [2018-11-18 14:30:29,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:30:29,560 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2018-11-18 14:30:29,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:30:29,571 INFO L225 Difference]: With dead ends: 618 [2018-11-18 14:30:29,572 INFO L226 Difference]: Without dead ends: 379 [2018-11-18 14:30:29,576 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:30:29,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2018-11-18 14:30:29,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2018-11-18 14:30:29,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2018-11-18 14:30:29,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 621 transitions. [2018-11-18 14:30:29,631 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 621 transitions. Word has length 106 [2018-11-18 14:30:29,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:30:29,631 INFO L480 AbstractCegarLoop]: Abstraction has 379 states and 621 transitions. [2018-11-18 14:30:29,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 14:30:29,632 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 621 transitions. [2018-11-18 14:30:29,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-11-18 14:30:29,637 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:30:29,637 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:30:29,637 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:30:29,637 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:30:29,638 INFO L82 PathProgramCache]: Analyzing trace with hash 1354213973, now seen corresponding path program 1 times [2018-11-18 14:30:29,638 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:30:29,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:30:29,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:30:29,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:30:29,640 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:30:29,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:30:29,782 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:30:29,783 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:30:29,783 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 14:30:29,783 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:30:29,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 14:30:29,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 14:30:29,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 14:30:29,785 INFO L87 Difference]: Start difference. First operand 379 states and 621 transitions. Second operand 6 states. [2018-11-18 14:30:30,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:30:30,787 INFO L93 Difference]: Finished difference Result 1229 states and 2094 transitions. [2018-11-18 14:30:30,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 14:30:30,788 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 122 [2018-11-18 14:30:30,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:30:30,794 INFO L225 Difference]: With dead ends: 1229 [2018-11-18 14:30:30,794 INFO L226 Difference]: Without dead ends: 856 [2018-11-18 14:30:30,798 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-18 14:30:30,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2018-11-18 14:30:30,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 823. [2018-11-18 14:30:30,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 823 states. [2018-11-18 14:30:30,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 1292 transitions. [2018-11-18 14:30:30,837 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 1292 transitions. Word has length 122 [2018-11-18 14:30:30,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:30:30,837 INFO L480 AbstractCegarLoop]: Abstraction has 823 states and 1292 transitions. [2018-11-18 14:30:30,837 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 14:30:30,838 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 1292 transitions. [2018-11-18 14:30:30,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-11-18 14:30:30,843 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:30:30,844 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:30:30,844 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:30:30,844 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:30:30,844 INFO L82 PathProgramCache]: Analyzing trace with hash -796384502, now seen corresponding path program 1 times [2018-11-18 14:30:30,844 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:30:30,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:30:30,845 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:30:30,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:30:30,845 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:30:30,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:30:30,982 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:30:30,982 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:30:30,982 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 14:30:30,982 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:30:30,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 14:30:30,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 14:30:30,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 14:30:30,983 INFO L87 Difference]: Start difference. First operand 823 states and 1292 transitions. Second operand 6 states. [2018-11-18 14:30:32,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:30:32,155 INFO L93 Difference]: Finished difference Result 2557 states and 4222 transitions. [2018-11-18 14:30:32,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 14:30:32,155 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 129 [2018-11-18 14:30:32,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:30:32,164 INFO L225 Difference]: With dead ends: 2557 [2018-11-18 14:30:32,164 INFO L226 Difference]: Without dead ends: 1740 [2018-11-18 14:30:32,169 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-18 14:30:32,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1740 states. [2018-11-18 14:30:32,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1740 to 1682. [2018-11-18 14:30:32,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1682 states. [2018-11-18 14:30:32,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1682 states to 1682 states and 2540 transitions. [2018-11-18 14:30:32,216 INFO L78 Accepts]: Start accepts. Automaton has 1682 states and 2540 transitions. Word has length 129 [2018-11-18 14:30:32,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:30:32,216 INFO L480 AbstractCegarLoop]: Abstraction has 1682 states and 2540 transitions. [2018-11-18 14:30:32,216 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 14:30:32,216 INFO L276 IsEmpty]: Start isEmpty. Operand 1682 states and 2540 transitions. [2018-11-18 14:30:32,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-11-18 14:30:32,220 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:30:32,220 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:30:32,221 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:30:32,221 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:30:32,221 INFO L82 PathProgramCache]: Analyzing trace with hash 80807714, now seen corresponding path program 1 times [2018-11-18 14:30:32,221 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:30:32,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:30:32,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:30:32,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:30:32,222 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:30:32,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:30:32,310 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-18 14:30:32,310 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:30:32,310 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:30:32,311 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 132 with the following transitions: [2018-11-18 14:30:32,313 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [519], [521], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-11-18 14:30:32,350 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:30:32,350 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:30:32,667 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 14:30:32,669 INFO L272 AbstractInterpreter]: Visited 107 different actions 107 times. Never merged. Never widened. Performed 1215 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1215 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 38 variables. [2018-11-18 14:30:32,675 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:30:32,675 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 14:30:32,910 INFO L227 lantSequenceWeakener]: Weakened 122 states. On average, predicates are now at 80.77% of their original sizes. [2018-11-18 14:30:32,910 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 14:30:32,956 INFO L415 sIntCurrentIteration]: We unified 130 AI predicates to 130 [2018-11-18 14:30:32,956 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 14:30:32,956 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 14:30:32,957 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-11-18 14:30:32,957 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:30:32,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 14:30:32,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 14:30:32,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 14:30:32,957 INFO L87 Difference]: Start difference. First operand 1682 states and 2540 transitions. Second operand 6 states. [2018-11-18 14:30:35,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:30:35,881 INFO L93 Difference]: Finished difference Result 3506 states and 5281 transitions. [2018-11-18 14:30:35,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 14:30:35,882 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 131 [2018-11-18 14:30:35,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:30:35,889 INFO L225 Difference]: With dead ends: 3506 [2018-11-18 14:30:35,889 INFO L226 Difference]: Without dead ends: 1830 [2018-11-18 14:30:35,893 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 131 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:30:35,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1830 states. [2018-11-18 14:30:35,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1830 to 1827. [2018-11-18 14:30:35,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1827 states. [2018-11-18 14:30:35,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1827 states to 1827 states and 2692 transitions. [2018-11-18 14:30:35,933 INFO L78 Accepts]: Start accepts. Automaton has 1827 states and 2692 transitions. Word has length 131 [2018-11-18 14:30:35,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:30:35,934 INFO L480 AbstractCegarLoop]: Abstraction has 1827 states and 2692 transitions. [2018-11-18 14:30:35,934 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 14:30:35,934 INFO L276 IsEmpty]: Start isEmpty. Operand 1827 states and 2692 transitions. [2018-11-18 14:30:35,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-11-18 14:30:35,938 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:30:35,938 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:30:35,938 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:30:35,938 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:30:35,939 INFO L82 PathProgramCache]: Analyzing trace with hash -2031058527, now seen corresponding path program 1 times [2018-11-18 14:30:35,939 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:30:35,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:30:35,940 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:30:35,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:30:35,941 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:30:35,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:30:36,039 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 32 proven. 17 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 14:30:36,039 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:30:36,039 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:30:36,040 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 142 with the following transitions: [2018-11-18 14:30:36,040 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [9], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [519], [521], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-11-18 14:30:36,043 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:30:36,043 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:30:36,337 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 14:30:36,338 INFO L272 AbstractInterpreter]: Visited 111 different actions 326 times. Merged at 7 different actions 15 times. Never widened. Performed 3762 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3762 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 2 different actions. Largest state had 38 variables. [2018-11-18 14:30:36,351 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:30:36,351 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 14:30:36,525 INFO L227 lantSequenceWeakener]: Weakened 138 states. On average, predicates are now at 84.15% of their original sizes. [2018-11-18 14:30:36,526 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 14:30:36,664 INFO L415 sIntCurrentIteration]: We unified 140 AI predicates to 140 [2018-11-18 14:30:36,664 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 14:30:36,664 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 14:30:36,665 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2018-11-18 14:30:36,665 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:30:36,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 14:30:36,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 14:30:36,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 14:30:36,667 INFO L87 Difference]: Start difference. First operand 1827 states and 2692 transitions. Second operand 9 states. [2018-11-18 14:30:39,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:30:39,541 INFO L93 Difference]: Finished difference Result 4531 states and 6711 transitions. [2018-11-18 14:30:39,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-18 14:30:39,541 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 141 [2018-11-18 14:30:39,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:30:39,548 INFO L225 Difference]: With dead ends: 4531 [2018-11-18 14:30:39,548 INFO L226 Difference]: Without dead ends: 2710 [2018-11-18 14:30:39,551 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 148 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-11-18 14:30:39,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2710 states. [2018-11-18 14:30:39,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2710 to 2633. [2018-11-18 14:30:39,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2633 states. [2018-11-18 14:30:39,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2633 states to 2633 states and 3700 transitions. [2018-11-18 14:30:39,592 INFO L78 Accepts]: Start accepts. Automaton has 2633 states and 3700 transitions. Word has length 141 [2018-11-18 14:30:39,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:30:39,593 INFO L480 AbstractCegarLoop]: Abstraction has 2633 states and 3700 transitions. [2018-11-18 14:30:39,593 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 14:30:39,593 INFO L276 IsEmpty]: Start isEmpty. Operand 2633 states and 3700 transitions. [2018-11-18 14:30:39,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-11-18 14:30:39,596 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:30:39,596 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:30:39,597 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:30:39,597 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:30:39,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1483859631, now seen corresponding path program 1 times [2018-11-18 14:30:39,597 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:30:39,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:30:39,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:30:39,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:30:39,600 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:30:39,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:30:39,707 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-18 14:30:39,707 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:30:39,707 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:30:39,708 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 144 with the following transitions: [2018-11-18 14:30:39,708 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [75], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [519], [521], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-11-18 14:30:39,711 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:30:39,711 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:30:39,909 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 14:30:39,909 INFO L272 AbstractInterpreter]: Visited 111 different actions 327 times. Merged at 7 different actions 18 times. Never widened. Performed 3988 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3988 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 3 different actions. Largest state had 38 variables. [2018-11-18 14:30:39,918 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:30:39,919 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 14:30:39,919 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:30:39,920 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fb718951-b4b8-4fbe-9e26-88010d2a740b/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:30:39,927 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:30:39,927 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 14:30:39,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:30:39,991 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:30:40,054 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-18 14:30:40,054 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:30:40,118 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-18 14:30:40,135 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-18 14:30:40,135 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5] total 7 [2018-11-18 14:30:40,135 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:30:40,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 14:30:40,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:30:40,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:30:40,136 INFO L87 Difference]: Start difference. First operand 2633 states and 3700 transitions. Second operand 3 states. [2018-11-18 14:30:40,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:30:40,578 INFO L93 Difference]: Finished difference Result 7347 states and 10767 transitions. [2018-11-18 14:30:40,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:30:40,579 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 143 [2018-11-18 14:30:40,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:30:40,591 INFO L225 Difference]: With dead ends: 7347 [2018-11-18 14:30:40,591 INFO L226 Difference]: Without dead ends: 4720 [2018-11-18 14:30:40,598 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 288 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:30:40,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4720 states. [2018-11-18 14:30:40,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4720 to 4716. [2018-11-18 14:30:40,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4716 states. [2018-11-18 14:30:40,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4716 states to 4716 states and 6324 transitions. [2018-11-18 14:30:40,663 INFO L78 Accepts]: Start accepts. Automaton has 4716 states and 6324 transitions. Word has length 143 [2018-11-18 14:30:40,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:30:40,664 INFO L480 AbstractCegarLoop]: Abstraction has 4716 states and 6324 transitions. [2018-11-18 14:30:40,664 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 14:30:40,664 INFO L276 IsEmpty]: Start isEmpty. Operand 4716 states and 6324 transitions. [2018-11-18 14:30:40,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-11-18 14:30:40,668 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:30:40,668 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:30:40,669 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:30:40,669 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:30:40,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1372098695, now seen corresponding path program 1 times [2018-11-18 14:30:40,669 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:30:40,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:30:40,670 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:30:40,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:30:40,670 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:30:40,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:30:40,767 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 48 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:30:40,767 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:30:40,767 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:30:40,767 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 153 with the following transitions: [2018-11-18 14:30:40,768 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [9], [10], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [127], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [519], [521], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-11-18 14:30:40,770 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:30:40,770 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:30:40,953 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 14:30:40,953 INFO L272 AbstractInterpreter]: Visited 111 different actions 327 times. Merged at 7 different actions 18 times. Never widened. Performed 3840 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3840 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 3 different actions. Largest state had 38 variables. [2018-11-18 14:30:40,958 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:30:40,959 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 14:30:40,959 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:30:40,959 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fb718951-b4b8-4fbe-9e26-88010d2a740b/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:30:40,967 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:30:40,967 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 14:30:41,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:30:41,009 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:30:41,077 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 48 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:30:41,078 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:30:41,146 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 48 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:30:41,178 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 14:30:41,179 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-11-18 14:30:41,179 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 14:30:41,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 14:30:41,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 14:30:41,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-18 14:30:41,180 INFO L87 Difference]: Start difference. First operand 4716 states and 6324 transitions. Second operand 9 states. [2018-11-18 14:30:42,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:30:42,160 INFO L93 Difference]: Finished difference Result 10847 states and 14645 transitions. [2018-11-18 14:30:42,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 14:30:42,161 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 152 [2018-11-18 14:30:42,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:30:42,180 INFO L225 Difference]: With dead ends: 10847 [2018-11-18 14:30:42,181 INFO L226 Difference]: Without dead ends: 5372 [2018-11-18 14:30:42,195 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 300 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2018-11-18 14:30:42,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5372 states. [2018-11-18 14:30:42,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5372 to 5268. [2018-11-18 14:30:42,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5268 states. [2018-11-18 14:30:42,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5268 states to 5268 states and 6459 transitions. [2018-11-18 14:30:42,312 INFO L78 Accepts]: Start accepts. Automaton has 5268 states and 6459 transitions. Word has length 152 [2018-11-18 14:30:42,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:30:42,313 INFO L480 AbstractCegarLoop]: Abstraction has 5268 states and 6459 transitions. [2018-11-18 14:30:42,313 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 14:30:42,313 INFO L276 IsEmpty]: Start isEmpty. Operand 5268 states and 6459 transitions. [2018-11-18 14:30:42,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-11-18 14:30:42,319 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:30:42,319 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:30:42,319 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:30:42,319 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:30:42,319 INFO L82 PathProgramCache]: Analyzing trace with hash -793512577, now seen corresponding path program 1 times [2018-11-18 14:30:42,319 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:30:42,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:30:42,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:30:42,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:30:42,320 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:30:42,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:30:42,387 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 56 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:30:42,388 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:30:42,388 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:30:42,388 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 157 with the following transitions: [2018-11-18 14:30:42,388 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [127], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [519], [521], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-11-18 14:30:42,391 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:30:42,391 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:30:42,678 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 14:30:42,678 INFO L272 AbstractInterpreter]: Visited 111 different actions 327 times. Merged at 7 different actions 18 times. Never widened. Performed 3918 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3918 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 3 different actions. Largest state had 38 variables. [2018-11-18 14:30:42,680 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:30:42,680 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 14:30:42,680 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:30:42,680 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fb718951-b4b8-4fbe-9e26-88010d2a740b/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:30:42,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:30:42,699 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 14:30:42,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:30:42,750 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:30:42,784 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 56 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:30:42,785 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:30:42,869 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 56 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:30:42,895 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 14:30:42,895 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 7 [2018-11-18 14:30:42,895 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 14:30:42,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 14:30:42,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 14:30:42,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:30:42,896 INFO L87 Difference]: Start difference. First operand 5268 states and 6459 transitions. Second operand 6 states. [2018-11-18 14:30:43,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:30:43,591 INFO L93 Difference]: Finished difference Result 12676 states and 15575 transitions. [2018-11-18 14:30:43,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 14:30:43,594 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 156 [2018-11-18 14:30:43,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:30:43,609 INFO L225 Difference]: With dead ends: 12676 [2018-11-18 14:30:43,610 INFO L226 Difference]: Without dead ends: 7414 [2018-11-18 14:30:43,618 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 313 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2018-11-18 14:30:43,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7414 states. [2018-11-18 14:30:43,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7414 to 7299. [2018-11-18 14:30:43,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7299 states. [2018-11-18 14:30:43,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7299 states to 7299 states and 8710 transitions. [2018-11-18 14:30:43,712 INFO L78 Accepts]: Start accepts. Automaton has 7299 states and 8710 transitions. Word has length 156 [2018-11-18 14:30:43,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:30:43,712 INFO L480 AbstractCegarLoop]: Abstraction has 7299 states and 8710 transitions. [2018-11-18 14:30:43,712 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 14:30:43,712 INFO L276 IsEmpty]: Start isEmpty. Operand 7299 states and 8710 transitions. [2018-11-18 14:30:43,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2018-11-18 14:30:43,720 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:30:43,720 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:30:43,720 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:30:43,720 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:30:43,720 INFO L82 PathProgramCache]: Analyzing trace with hash -1488399591, now seen corresponding path program 1 times [2018-11-18 14:30:43,721 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:30:43,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:30:43,721 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:30:43,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:30:43,721 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:30:43,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:30:43,873 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 165 proven. 84 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-11-18 14:30:43,873 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:30:43,874 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:30:43,874 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 253 with the following transitions: [2018-11-18 14:30:43,874 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [75], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [190], [191], [195], [199], [210], [214], [218], [222], [225], [228], [232], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [519], [521], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-11-18 14:30:43,876 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:30:43,876 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:30:44,103 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 14:30:44,103 INFO L272 AbstractInterpreter]: Visited 115 different actions 339 times. Merged at 9 different actions 22 times. Never widened. Performed 4098 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4098 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 5 fixpoints after 3 different actions. Largest state had 38 variables. [2018-11-18 14:30:44,114 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:30:44,114 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 14:30:44,114 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:30:44,115 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fb718951-b4b8-4fbe-9e26-88010d2a740b/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:30:44,123 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:30:44,124 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 14:30:44,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:30:44,179 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:30:44,256 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 202 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2018-11-18 14:30:44,257 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:30:44,351 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 180 proven. 49 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2018-11-18 14:30:44,368 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 14:30:44,368 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5] total 16 [2018-11-18 14:30:44,368 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 14:30:44,369 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-18 14:30:44,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-18 14:30:44,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2018-11-18 14:30:44,369 INFO L87 Difference]: Start difference. First operand 7299 states and 8710 transitions. Second operand 15 states. [2018-11-18 14:30:45,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:30:45,847 INFO L93 Difference]: Finished difference Result 14306 states and 17335 transitions. [2018-11-18 14:30:45,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-18 14:30:45,848 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 252 [2018-11-18 14:30:45,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:30:45,848 INFO L225 Difference]: With dead ends: 14306 [2018-11-18 14:30:45,848 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 14:30:45,869 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 546 GetRequests, 514 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=666, Unknown=0, NotChecked=0, Total=930 [2018-11-18 14:30:45,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 14:30:45,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 14:30:45,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 14:30:45,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 14:30:45,870 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 252 [2018-11-18 14:30:45,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:30:45,870 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 14:30:45,871 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-18 14:30:45,871 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 14:30:45,871 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 14:30:45,874 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 14:30:46,002 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:30:46,004 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:30:46,005 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:30:46,007 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:30:46,008 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:30:46,009 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:30:46,015 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:30:46,019 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:30:46,021 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:30:46,025 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:30:46,027 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:30:46,030 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:30:46,033 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:30:46,035 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:30:46,042 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:30:46,045 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:30:46,053 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:30:46,060 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:30:46,070 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:30:46,072 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:30:46,073 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:30:46,074 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:30:46,076 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:30:46,077 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:30:46,083 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:30:46,089 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:30:46,090 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:30:46,092 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:30:46,095 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:30:46,098 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:30:46,104 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:30:46,492 WARN L180 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 54 [2018-11-18 14:30:46,724 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 42 [2018-11-18 14:30:46,725 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 14:30:46,726 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(~a28~0)| ~a28~0) (= |old(~a19~0)| ~a19~0) (= ~a11~0 |old(~a11~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a25~0 |old(~a25~0)|)) [2018-11-18 14:30:46,726 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 14:30:46,726 INFO L425 ceAbstractionStarter]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,726 INFO L425 ceAbstractionStarter]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,726 INFO L425 ceAbstractionStarter]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,726 INFO L425 ceAbstractionStarter]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,726 INFO L425 ceAbstractionStarter]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,726 INFO L425 ceAbstractionStarter]: For program point L234(lines 234 413) no Hoare annotation was computed. [2018-11-18 14:30:46,726 INFO L425 ceAbstractionStarter]: For program point L69(lines 69 413) no Hoare annotation was computed. [2018-11-18 14:30:46,726 INFO L425 ceAbstractionStarter]: For program point L565(line 565) no Hoare annotation was computed. [2018-11-18 14:30:46,726 INFO L425 ceAbstractionStarter]: For program point L532(line 532) no Hoare annotation was computed. [2018-11-18 14:30:46,727 INFO L425 ceAbstractionStarter]: For program point L499(line 499) no Hoare annotation was computed. [2018-11-18 14:30:46,727 INFO L425 ceAbstractionStarter]: For program point L466(line 466) no Hoare annotation was computed. [2018-11-18 14:30:46,727 INFO L425 ceAbstractionStarter]: For program point L433(line 433) no Hoare annotation was computed. [2018-11-18 14:30:46,727 INFO L425 ceAbstractionStarter]: For program point L202(lines 202 413) no Hoare annotation was computed. [2018-11-18 14:30:46,727 INFO L425 ceAbstractionStarter]: For program point L169(lines 169 413) no Hoare annotation was computed. [2018-11-18 14:30:46,727 INFO L425 ceAbstractionStarter]: For program point L368(lines 368 413) no Hoare annotation was computed. [2018-11-18 14:30:46,727 INFO L425 ceAbstractionStarter]: For program point L203(lines 203 210) no Hoare annotation was computed. [2018-11-18 14:30:46,727 INFO L425 ceAbstractionStarter]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2018-11-18 14:30:46,727 INFO L425 ceAbstractionStarter]: For program point L38(lines 38 413) no Hoare annotation was computed. [2018-11-18 14:30:46,727 INFO L425 ceAbstractionStarter]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,727 INFO L425 ceAbstractionStarter]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,727 INFO L425 ceAbstractionStarter]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,727 INFO L425 ceAbstractionStarter]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,727 INFO L425 ceAbstractionStarter]: For program point L402(lines 402 413) no Hoare annotation was computed. [2018-11-18 14:30:46,727 INFO L425 ceAbstractionStarter]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,727 INFO L425 ceAbstractionStarter]: For program point L237(lines 237 413) no Hoare annotation was computed. [2018-11-18 14:30:46,728 INFO L425 ceAbstractionStarter]: For program point L568(line 568) no Hoare annotation was computed. [2018-11-18 14:30:46,728 INFO L425 ceAbstractionStarter]: For program point L535(line 535) no Hoare annotation was computed. [2018-11-18 14:30:46,728 INFO L425 ceAbstractionStarter]: For program point L502(line 502) no Hoare annotation was computed. [2018-11-18 14:30:46,728 INFO L425 ceAbstractionStarter]: For program point L469(line 469) no Hoare annotation was computed. [2018-11-18 14:30:46,728 INFO L425 ceAbstractionStarter]: For program point L436(line 436) no Hoare annotation was computed. [2018-11-18 14:30:46,728 INFO L425 ceAbstractionStarter]: For program point L337(lines 337 413) no Hoare annotation was computed. [2018-11-18 14:30:46,728 INFO L425 ceAbstractionStarter]: For program point L238(lines 238 246) no Hoare annotation was computed. [2018-11-18 14:30:46,728 INFO L425 ceAbstractionStarter]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2018-11-18 14:30:46,728 INFO L425 ceAbstractionStarter]: For program point L139(lines 139 413) no Hoare annotation was computed. [2018-11-18 14:30:46,728 INFO L425 ceAbstractionStarter]: For program point L106(lines 106 413) no Hoare annotation was computed. [2018-11-18 14:30:46,728 INFO L425 ceAbstractionStarter]: For program point L404(lines 404 413) no Hoare annotation was computed. [2018-11-18 14:30:46,728 INFO L425 ceAbstractionStarter]: For program point L338(lines 338 347) no Hoare annotation was computed. [2018-11-18 14:30:46,728 INFO L425 ceAbstractionStarter]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2018-11-18 14:30:46,728 INFO L425 ceAbstractionStarter]: For program point L74(lines 74 413) no Hoare annotation was computed. [2018-11-18 14:30:46,728 INFO L425 ceAbstractionStarter]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,728 INFO L425 ceAbstractionStarter]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,729 INFO L425 ceAbstractionStarter]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,729 INFO L425 ceAbstractionStarter]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,729 INFO L425 ceAbstractionStarter]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,729 INFO L425 ceAbstractionStarter]: For program point L75(lines 75 80) no Hoare annotation was computed. [2018-11-18 14:30:46,729 INFO L425 ceAbstractionStarter]: For program point L42(lines 42 413) no Hoare annotation was computed. [2018-11-18 14:30:46,729 INFO L425 ceAbstractionStarter]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2018-11-18 14:30:46,729 INFO L425 ceAbstractionStarter]: For program point L571(line 571) no Hoare annotation was computed. [2018-11-18 14:30:46,729 INFO L425 ceAbstractionStarter]: For program point L538(line 538) no Hoare annotation was computed. [2018-11-18 14:30:46,729 INFO L425 ceAbstractionStarter]: For program point L505(line 505) no Hoare annotation was computed. [2018-11-18 14:30:46,729 INFO L425 ceAbstractionStarter]: For program point L472(line 472) no Hoare annotation was computed. [2018-11-18 14:30:46,729 INFO L425 ceAbstractionStarter]: For program point L439(line 439) no Hoare annotation was computed. [2018-11-18 14:30:46,729 INFO L425 ceAbstractionStarter]: For program point L175(lines 175 413) no Hoare annotation was computed. [2018-11-18 14:30:46,729 INFO L425 ceAbstractionStarter]: For program point L407(lines 407 413) no Hoare annotation was computed. [2018-11-18 14:30:46,729 INFO L425 ceAbstractionStarter]: For program point L143(lines 143 413) no Hoare annotation was computed. [2018-11-18 14:30:46,729 INFO L425 ceAbstractionStarter]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,729 INFO L425 ceAbstractionStarter]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,730 INFO L425 ceAbstractionStarter]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,730 INFO L425 ceAbstractionStarter]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,730 INFO L425 ceAbstractionStarter]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,730 INFO L425 ceAbstractionStarter]: For program point L375(lines 375 413) no Hoare annotation was computed. [2018-11-18 14:30:46,730 INFO L425 ceAbstractionStarter]: For program point L309(lines 309 413) no Hoare annotation was computed. [2018-11-18 14:30:46,730 INFO L425 ceAbstractionStarter]: For program point L276(lines 276 413) no Hoare annotation was computed. [2018-11-18 14:30:46,730 INFO L425 ceAbstractionStarter]: For program point L574(line 574) no Hoare annotation was computed. [2018-11-18 14:30:46,730 INFO L425 ceAbstractionStarter]: For program point L541(line 541) no Hoare annotation was computed. [2018-11-18 14:30:46,730 INFO L425 ceAbstractionStarter]: For program point L508(line 508) no Hoare annotation was computed. [2018-11-18 14:30:46,730 INFO L425 ceAbstractionStarter]: For program point L475(line 475) no Hoare annotation was computed. [2018-11-18 14:30:46,730 INFO L425 ceAbstractionStarter]: For program point L442(line 442) no Hoare annotation was computed. [2018-11-18 14:30:46,730 INFO L425 ceAbstractionStarter]: For program point L409(lines 409 413) no Hoare annotation was computed. [2018-11-18 14:30:46,730 INFO L425 ceAbstractionStarter]: For program point L212(lines 212 413) no Hoare annotation was computed. [2018-11-18 14:30:46,730 INFO L425 ceAbstractionStarter]: For program point L179(lines 179 413) no Hoare annotation was computed. [2018-11-18 14:30:46,730 INFO L425 ceAbstractionStarter]: For program point L113(lines 113 413) no Hoare annotation was computed. [2018-11-18 14:30:46,730 INFO L425 ceAbstractionStarter]: For program point L47(lines 47 413) no Hoare annotation was computed. [2018-11-18 14:30:46,731 INFO L425 ceAbstractionStarter]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,731 INFO L425 ceAbstractionStarter]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,731 INFO L425 ceAbstractionStarter]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,731 INFO L425 ceAbstractionStarter]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,731 INFO L425 ceAbstractionStarter]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,731 INFO L425 ceAbstractionStarter]: For program point L378(lines 378 413) no Hoare annotation was computed. [2018-11-18 14:30:46,731 INFO L425 ceAbstractionStarter]: For program point L577(line 577) no Hoare annotation was computed. [2018-11-18 14:30:46,731 INFO L425 ceAbstractionStarter]: For program point L544(line 544) no Hoare annotation was computed. [2018-11-18 14:30:46,731 INFO L425 ceAbstractionStarter]: For program point L511(line 511) no Hoare annotation was computed. [2018-11-18 14:30:46,731 INFO L425 ceAbstractionStarter]: For program point L478(line 478) no Hoare annotation was computed. [2018-11-18 14:30:46,731 INFO L425 ceAbstractionStarter]: For program point L445(line 445) no Hoare annotation was computed. [2018-11-18 14:30:46,731 INFO L425 ceAbstractionStarter]: For program point L280(lines 280 413) no Hoare annotation was computed. [2018-11-18 14:30:46,731 INFO L425 ceAbstractionStarter]: For program point L148(lines 148 413) no Hoare annotation was computed. [2018-11-18 14:30:46,731 INFO L425 ceAbstractionStarter]: For program point L82(lines 82 413) no Hoare annotation was computed. [2018-11-18 14:30:46,732 INFO L425 ceAbstractionStarter]: For program point L380(lines 380 413) no Hoare annotation was computed. [2018-11-18 14:30:46,732 INFO L425 ceAbstractionStarter]: For program point L314(lines 314 413) no Hoare annotation was computed. [2018-11-18 14:30:46,732 INFO L425 ceAbstractionStarter]: For program point L248(lines 248 413) no Hoare annotation was computed. [2018-11-18 14:30:46,732 INFO L425 ceAbstractionStarter]: For program point L215(lines 215 413) no Hoare annotation was computed. [2018-11-18 14:30:46,732 INFO L425 ceAbstractionStarter]: For program point L83(lines 83 89) no Hoare annotation was computed. [2018-11-18 14:30:46,732 INFO L425 ceAbstractionStarter]: For program point L50(lines 50 413) no Hoare annotation was computed. [2018-11-18 14:30:46,732 INFO L425 ceAbstractionStarter]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2018-11-18 14:30:46,732 INFO L425 ceAbstractionStarter]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,732 INFO L425 ceAbstractionStarter]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,732 INFO L425 ceAbstractionStarter]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,732 INFO L425 ceAbstractionStarter]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,732 INFO L425 ceAbstractionStarter]: For program point L414(lines 414 416) no Hoare annotation was computed. [2018-11-18 14:30:46,732 INFO L425 ceAbstractionStarter]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,732 INFO L425 ceAbstractionStarter]: For program point L381(lines 381 387) no Hoare annotation was computed. [2018-11-18 14:30:46,732 INFO L425 ceAbstractionStarter]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,732 INFO L425 ceAbstractionStarter]: For program point L315(lines 315 326) no Hoare annotation was computed. [2018-11-18 14:30:46,733 INFO L425 ceAbstractionStarter]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2018-11-18 14:30:46,733 INFO L425 ceAbstractionStarter]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2018-11-18 14:30:46,733 INFO L425 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,733 INFO L425 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,733 INFO L425 ceAbstractionStarter]: For program point L580(line 580) no Hoare annotation was computed. [2018-11-18 14:30:46,733 INFO L425 ceAbstractionStarter]: For program point L547(line 547) no Hoare annotation was computed. [2018-11-18 14:30:46,733 INFO L425 ceAbstractionStarter]: For program point L514(line 514) no Hoare annotation was computed. [2018-11-18 14:30:46,733 INFO L425 ceAbstractionStarter]: For program point L481(line 481) no Hoare annotation was computed. [2018-11-18 14:30:46,733 INFO L425 ceAbstractionStarter]: For program point L448(line 448) no Hoare annotation was computed. [2018-11-18 14:30:46,733 INFO L425 ceAbstractionStarter]: For program point L415(line 415) no Hoare annotation was computed. [2018-11-18 14:30:46,733 INFO L425 ceAbstractionStarter]: For program point L349(lines 349 413) no Hoare annotation was computed. [2018-11-18 14:30:46,733 INFO L425 ceAbstractionStarter]: For program point L283(lines 283 413) no Hoare annotation was computed. [2018-11-18 14:30:46,733 INFO L425 ceAbstractionStarter]: For program point L218(lines 218 413) no Hoare annotation was computed. [2018-11-18 14:30:46,733 INFO L425 ceAbstractionStarter]: For program point L185(lines 185 413) no Hoare annotation was computed. [2018-11-18 14:30:46,733 INFO L425 ceAbstractionStarter]: For program point L119(lines 119 413) no Hoare annotation was computed. [2018-11-18 14:30:46,733 INFO L425 ceAbstractionStarter]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,734 INFO L425 ceAbstractionStarter]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,734 INFO L425 ceAbstractionStarter]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,734 INFO L425 ceAbstractionStarter]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,734 INFO L425 ceAbstractionStarter]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,734 INFO L425 ceAbstractionStarter]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,734 INFO L425 ceAbstractionStarter]: For program point L54(lines 54 413) no Hoare annotation was computed. [2018-11-18 14:30:46,734 INFO L425 ceAbstractionStarter]: For program point L583(line 583) no Hoare annotation was computed. [2018-11-18 14:30:46,734 INFO L425 ceAbstractionStarter]: For program point L550(line 550) no Hoare annotation was computed. [2018-11-18 14:30:46,734 INFO L425 ceAbstractionStarter]: For program point L517(line 517) no Hoare annotation was computed. [2018-11-18 14:30:46,734 INFO L425 ceAbstractionStarter]: For program point L484(line 484) no Hoare annotation was computed. [2018-11-18 14:30:46,734 INFO L425 ceAbstractionStarter]: For program point L451(line 451) no Hoare annotation was computed. [2018-11-18 14:30:46,734 INFO L425 ceAbstractionStarter]: For program point L418(line 418) no Hoare annotation was computed. [2018-11-18 14:30:46,734 INFO L425 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 469) no Hoare annotation was computed. [2018-11-18 14:30:46,734 INFO L425 ceAbstractionStarter]: For program point L286(lines 286 413) no Hoare annotation was computed. [2018-11-18 14:30:46,735 INFO L425 ceAbstractionStarter]: For program point L253(lines 253 413) no Hoare annotation was computed. [2018-11-18 14:30:46,735 INFO L425 ceAbstractionStarter]: For program point L187(lines 187 413) no Hoare annotation was computed. [2018-11-18 14:30:46,735 INFO L425 ceAbstractionStarter]: For program point L154(lines 154 413) no Hoare annotation was computed. [2018-11-18 14:30:46,735 INFO L425 ceAbstractionStarter]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,735 INFO L425 ceAbstractionStarter]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,735 INFO L425 ceAbstractionStarter]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,735 INFO L425 ceAbstractionStarter]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,735 INFO L425 ceAbstractionStarter]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,735 INFO L425 ceAbstractionStarter]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,735 INFO L425 ceAbstractionStarter]: For program point L354(lines 354 413) no Hoare annotation was computed. [2018-11-18 14:30:46,735 INFO L425 ceAbstractionStarter]: For program point L189(lines 189 413) no Hoare annotation was computed. [2018-11-18 14:30:46,735 INFO L425 ceAbstractionStarter]: For program point L123(lines 123 413) no Hoare annotation was computed. [2018-11-18 14:30:46,735 INFO L425 ceAbstractionStarter]: For program point L586(line 586) no Hoare annotation was computed. [2018-11-18 14:30:46,735 INFO L425 ceAbstractionStarter]: For program point L553(line 553) no Hoare annotation was computed. [2018-11-18 14:30:46,735 INFO L425 ceAbstractionStarter]: For program point L520(line 520) no Hoare annotation was computed. [2018-11-18 14:30:46,735 INFO L425 ceAbstractionStarter]: For program point L487(line 487) no Hoare annotation was computed. [2018-11-18 14:30:46,736 INFO L425 ceAbstractionStarter]: For program point L454(line 454) no Hoare annotation was computed. [2018-11-18 14:30:46,736 INFO L425 ceAbstractionStarter]: For program point L421(line 421) no Hoare annotation was computed. [2018-11-18 14:30:46,736 INFO L425 ceAbstractionStarter]: For program point L223(lines 223 413) no Hoare annotation was computed. [2018-11-18 14:30:46,736 INFO L425 ceAbstractionStarter]: For program point L91(lines 91 413) no Hoare annotation was computed. [2018-11-18 14:30:46,736 INFO L425 ceAbstractionStarter]: For program point L389(lines 389 413) no Hoare annotation was computed. [2018-11-18 14:30:46,736 INFO L425 ceAbstractionStarter]: For program point L191(lines 191 413) no Hoare annotation was computed. [2018-11-18 14:30:46,736 INFO L425 ceAbstractionStarter]: For program point L59(lines 59 413) no Hoare annotation was computed. [2018-11-18 14:30:46,736 INFO L425 ceAbstractionStarter]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,736 INFO L425 ceAbstractionStarter]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,736 INFO L425 ceAbstractionStarter]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,736 INFO L421 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse0 (< 10 |old(~a28~0)|)) (.cse2 (= |old(~a19~0)| ~a19~0)) (.cse6 (= 7 ~a17~0)) (.cse7 (not (= 7 |old(~a17~0)|))) (.cse5 (not (= 1 |old(~a25~0)|))) (.cse3 (= ~a11~0 |old(~a11~0)|)) (.cse1 (= |old(~a28~0)| ~a28~0)) (.cse4 (= ~a25~0 |old(~a25~0)|))) (and (or .cse0 (and .cse1 .cse2 .cse3 (= ~a17~0 |old(~a17~0)|) .cse4) (not (= |old(~a17~0)| 8))) (or .cse0 .cse5 (and .cse1 .cse2 .cse3 .cse6 .cse4) .cse7) (or .cse0 (and .cse2 .cse3 (<= 10 ~a28~0) .cse6 (<= ~a28~0 10) .cse4) (< |old(~a28~0)| 10) .cse7) (or (not (= 1 ~a21~0)) .cse5 (not (= 1 |old(~a19~0)|)) (and .cse3 .cse1 (= ~a17~0 8) (= ~a19~0 1) .cse4) (= |old(~a11~0)| |old(~a19~0)|) (not (= 8 |old(~a17~0)|)) (= |calculate_output_#in~input| 0)))) [2018-11-18 14:30:46,736 INFO L425 ceAbstractionStarter]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,737 INFO L425 ceAbstractionStarter]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,737 INFO L425 ceAbstractionStarter]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,737 INFO L425 ceAbstractionStarter]: For program point L291(lines 291 413) no Hoare annotation was computed. [2018-11-18 14:30:46,737 INFO L425 ceAbstractionStarter]: For program point L225(lines 225 413) no Hoare annotation was computed. [2018-11-18 14:30:46,737 INFO L425 ceAbstractionStarter]: For program point L159(lines 159 413) no Hoare annotation was computed. [2018-11-18 14:30:46,737 INFO L425 ceAbstractionStarter]: For program point L589(line 589) no Hoare annotation was computed. [2018-11-18 14:30:46,737 INFO L425 ceAbstractionStarter]: For program point L556(line 556) no Hoare annotation was computed. [2018-11-18 14:30:46,737 INFO L425 ceAbstractionStarter]: For program point L523(line 523) no Hoare annotation was computed. [2018-11-18 14:30:46,737 INFO L425 ceAbstractionStarter]: For program point L490(line 490) no Hoare annotation was computed. [2018-11-18 14:30:46,737 INFO L425 ceAbstractionStarter]: For program point L457(line 457) no Hoare annotation was computed. [2018-11-18 14:30:46,737 INFO L425 ceAbstractionStarter]: For program point L424(line 424) no Hoare annotation was computed. [2018-11-18 14:30:46,737 INFO L425 ceAbstractionStarter]: For program point L259(lines 259 413) no Hoare annotation was computed. [2018-11-18 14:30:46,737 INFO L425 ceAbstractionStarter]: For program point L293(lines 293 413) no Hoare annotation was computed. [2018-11-18 14:30:46,737 INFO L425 ceAbstractionStarter]: For program point L194(lines 194 413) no Hoare annotation was computed. [2018-11-18 14:30:46,737 INFO L425 ceAbstractionStarter]: For program point L95(lines 95 413) no Hoare annotation was computed. [2018-11-18 14:30:46,737 INFO L425 ceAbstractionStarter]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,738 INFO L425 ceAbstractionStarter]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,738 INFO L425 ceAbstractionStarter]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,738 INFO L425 ceAbstractionStarter]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,738 INFO L425 ceAbstractionStarter]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,738 INFO L425 ceAbstractionStarter]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,738 INFO L425 ceAbstractionStarter]: For program point L261(lines 261 413) no Hoare annotation was computed. [2018-11-18 14:30:46,738 INFO L425 ceAbstractionStarter]: For program point L30(lines 30 413) no Hoare annotation was computed. [2018-11-18 14:30:46,738 INFO L425 ceAbstractionStarter]: For program point L592(line 592) no Hoare annotation was computed. [2018-11-18 14:30:46,738 INFO L425 ceAbstractionStarter]: For program point L559(line 559) no Hoare annotation was computed. [2018-11-18 14:30:46,738 INFO L425 ceAbstractionStarter]: For program point L526(line 526) no Hoare annotation was computed. [2018-11-18 14:30:46,738 INFO L425 ceAbstractionStarter]: For program point L493(line 493) no Hoare annotation was computed. [2018-11-18 14:30:46,738 INFO L425 ceAbstractionStarter]: For program point L460(line 460) no Hoare annotation was computed. [2018-11-18 14:30:46,738 INFO L425 ceAbstractionStarter]: For program point L427(line 427) no Hoare annotation was computed. [2018-11-18 14:30:46,738 INFO L425 ceAbstractionStarter]: For program point L394(lines 394 413) no Hoare annotation was computed. [2018-11-18 14:30:46,738 INFO L425 ceAbstractionStarter]: For program point L361(lines 361 413) no Hoare annotation was computed. [2018-11-18 14:30:46,738 INFO L425 ceAbstractionStarter]: For program point L328(lines 328 413) no Hoare annotation was computed. [2018-11-18 14:30:46,739 INFO L425 ceAbstractionStarter]: For program point L262(lines 262 274) no Hoare annotation was computed. [2018-11-18 14:30:46,739 INFO L425 ceAbstractionStarter]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2018-11-18 14:30:46,739 INFO L425 ceAbstractionStarter]: For program point L130(lines 130 413) no Hoare annotation was computed. [2018-11-18 14:30:46,739 INFO L425 ceAbstractionStarter]: For program point L65(lines 65 413) no Hoare annotation was computed. [2018-11-18 14:30:46,739 INFO L425 ceAbstractionStarter]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2018-11-18 14:30:46,739 INFO L425 ceAbstractionStarter]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,739 INFO L425 ceAbstractionStarter]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,739 INFO L425 ceAbstractionStarter]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,739 INFO L425 ceAbstractionStarter]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,739 INFO L425 ceAbstractionStarter]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 14:30:46,739 INFO L425 ceAbstractionStarter]: For program point L297(lines 297 413) no Hoare annotation was computed. [2018-11-18 14:30:46,739 INFO L425 ceAbstractionStarter]: For program point L198(lines 198 413) no Hoare annotation was computed. [2018-11-18 14:30:46,739 INFO L425 ceAbstractionStarter]: For program point L165(lines 165 413) no Hoare annotation was computed. [2018-11-18 14:30:46,739 INFO L425 ceAbstractionStarter]: For program point L99(lines 99 413) no Hoare annotation was computed. [2018-11-18 14:30:46,739 INFO L425 ceAbstractionStarter]: For program point L595(line 595) no Hoare annotation was computed. [2018-11-18 14:30:46,739 INFO L425 ceAbstractionStarter]: For program point L562(line 562) no Hoare annotation was computed. [2018-11-18 14:30:46,740 INFO L425 ceAbstractionStarter]: For program point L529(line 529) no Hoare annotation was computed. [2018-11-18 14:30:46,740 INFO L425 ceAbstractionStarter]: For program point L496(line 496) no Hoare annotation was computed. [2018-11-18 14:30:46,740 INFO L425 ceAbstractionStarter]: For program point L463(line 463) no Hoare annotation was computed. [2018-11-18 14:30:46,740 INFO L425 ceAbstractionStarter]: For program point L430(line 430) no Hoare annotation was computed. [2018-11-18 14:30:46,740 INFO L425 ceAbstractionStarter]: For program point L331(lines 331 413) no Hoare annotation was computed. [2018-11-18 14:30:46,740 INFO L425 ceAbstractionStarter]: For program point L298(lines 298 307) no Hoare annotation was computed. [2018-11-18 14:30:46,740 INFO L425 ceAbstractionStarter]: For program point L232(lines 232 413) no Hoare annotation was computed. [2018-11-18 14:30:46,740 INFO L425 ceAbstractionStarter]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2018-11-18 14:30:46,740 INFO L425 ceAbstractionStarter]: For program point L398(lines 398 413) no Hoare annotation was computed. [2018-11-18 14:30:46,740 INFO L425 ceAbstractionStarter]: For program point L332(lines 332 335) no Hoare annotation was computed. [2018-11-18 14:30:46,740 INFO L425 ceAbstractionStarter]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2018-11-18 14:30:46,740 INFO L425 ceAbstractionStarter]: For program point L134(lines 134 413) no Hoare annotation was computed. [2018-11-18 14:30:46,740 INFO L425 ceAbstractionStarter]: For program point L35(lines 35 413) no Hoare annotation was computed. [2018-11-18 14:30:46,740 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 14:30:46,740 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a11~0 0) (= ~a25~0 0) (= ~a17~0 8) (= ~a19~0 1) (= ~a28~0 7) (= ~a21~0 1)) [2018-11-18 14:30:46,741 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 14:30:46,741 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 14:30:46,741 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 ~a21~0)) (not (= 7 |old(~a28~0)|)) (not (= 1 |old(~a19~0)|)) (not (= 0 |old(~a11~0)|)) (not (= 8 |old(~a17~0)|)) (and (= ~a11~0 0) (= ~a17~0 8) (= ~a19~0 1) (= ~a28~0 7) (= ~a25~0 |old(~a25~0)|)) (not (= 0 |old(~a25~0)|))) [2018-11-18 14:30:46,741 INFO L425 ceAbstractionStarter]: For program point L606-1(lines 606 616) no Hoare annotation was computed. [2018-11-18 14:30:46,741 INFO L421 ceAbstractionStarter]: At program point L606-3(lines 606 616) the Hoare annotation is: (let ((.cse1 (= 1 ~a25~0)) (.cse0 (= 7 ~a17~0)) (.cse2 (<= ~a28~0 10))) (or (and .cse0 .cse1 .cse2) (and (= |old(~a17~0)| ~a17~0) .cse2) (not (= 1 ~a21~0)) (not (= 7 |old(~a28~0)|)) (not (= 0 |old(~a11~0)|)) (and .cse1 (= ~a17~0 8) (= ~a19~0 1) (not (= ~a19~0 ~a11~0))) (and (<= 10 ~a28~0) .cse0 .cse2) (not (= 0 |old(~a25~0)|)) (not (= 1 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)))) [2018-11-18 14:30:46,741 INFO L425 ceAbstractionStarter]: For program point L606-4(lines 600 617) no Hoare annotation was computed. [2018-11-18 14:30:46,741 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2018-11-18 14:30:46,741 INFO L421 ceAbstractionStarter]: At program point L614(line 614) the Hoare annotation is: (let ((.cse1 (= 1 ~a25~0)) (.cse0 (= 7 ~a17~0)) (.cse2 (<= ~a28~0 10))) (or (and .cse0 .cse1 .cse2) (and (= |old(~a17~0)| ~a17~0) .cse2) (not (= 1 ~a21~0)) (not (= 7 |old(~a28~0)|)) (and (not (= main_~input~0 0)) .cse1 (= ~a17~0 8) (= ~a19~0 1) (not (= ~a19~0 ~a11~0))) (not (= 0 |old(~a11~0)|)) (not (= 1 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (and (<= 10 ~a28~0) .cse0 .cse2) (not (= 0 |old(~a25~0)|)))) [2018-11-18 14:30:46,741 INFO L425 ceAbstractionStarter]: For program point L614-1(line 614) no Hoare annotation was computed. [2018-11-18 14:30:46,741 INFO L425 ceAbstractionStarter]: For program point L611(line 611) no Hoare annotation was computed. [2018-11-18 14:30:46,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:30:46 BoogieIcfgContainer [2018-11-18 14:30:46,756 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 14:30:46,757 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:30:46,757 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:30:46,757 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:30:46,758 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:30:28" (3/4) ... [2018-11-18 14:30:46,761 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 14:30:46,766 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 14:30:46,766 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-18 14:30:46,766 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 14:30:46,776 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 14:30:46,776 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 14:30:46,799 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((7 == a17 && 1 == a25) && a28 <= 10) || (\old(a17) == a17 && a28 <= 10)) || !(1 == a21)) || !(7 == \old(a28))) || !(0 == \old(a11))) || (((1 == a25 && a17 == 8) && a19 == 1) && !(a19 == a11))) || ((10 <= a28 && 7 == a17) && a28 <= 10)) || !(0 == \old(a25))) || !(1 == \old(a19))) || !(8 == \old(a17)) [2018-11-18 14:30:46,873 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fb718951-b4b8-4fbe-9e26-88010d2a740b/bin-2019/utaipan/witness.graphml [2018-11-18 14:30:46,873 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:30:46,875 INFO L168 Benchmark]: Toolchain (without parser) took 21378.56 ms. Allocated memory was 1.0 GB in the beginning and 1.9 GB in the end (delta: 851.4 MB). Free memory was 957.6 MB in the beginning and 1.4 GB in the end (delta: -474.7 MB). Peak memory consumption was 376.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:30:46,876 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:30:46,876 INFO L168 Benchmark]: CACSL2BoogieTranslator took 526.54 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 922.7 MB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. [2018-11-18 14:30:46,876 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 922.7 MB in the beginning and 1.2 GB in the end (delta: -228.6 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2018-11-18 14:30:46,876 INFO L168 Benchmark]: Boogie Preprocessor took 77.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:30:46,877 INFO L168 Benchmark]: RCFGBuilder took 1951.54 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: 98.6 MB). Peak memory consumption was 98.6 MB. Max. memory is 11.5 GB. [2018-11-18 14:30:46,877 INFO L168 Benchmark]: TraceAbstraction took 18593.94 ms. Allocated memory was 1.2 GB in the beginning and 1.9 GB in the end (delta: 694.7 MB). Free memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: -402.9 MB). Peak memory consumption was 291.8 MB. Max. memory is 11.5 GB. [2018-11-18 14:30:46,877 INFO L168 Benchmark]: Witness Printer took 116.60 ms. Allocated memory is still 1.9 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2018-11-18 14:30:46,879 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 526.54 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 922.7 MB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 108.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 922.7 MB in the beginning and 1.2 GB in the end (delta: -228.6 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 77.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1951.54 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: 98.6 MB). Peak memory consumption was 98.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 18593.94 ms. Allocated memory was 1.2 GB in the beginning and 1.9 GB in the end (delta: 694.7 MB). Free memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: -402.9 MB). Peak memory consumption was 291.8 MB. Max. memory is 11.5 GB. * Witness Printer took 116.60 ms. Allocated memory is still 1.9 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 469]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((((((((7 == a17 && 1 == a25) && a28 <= 10) || (\old(a17) == a17 && a28 <= 10)) || !(1 == a21)) || !(7 == \old(a28))) || !(0 == \old(a11))) || (((1 == a25 && a17 == 8) && a19 == 1) && !(a19 == a11))) || ((10 <= a28 && 7 == a17) && a28 <= 10)) || !(0 == \old(a25))) || !(1 == \old(a19))) || !(8 == \old(a17)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 237 locations, 1 error locations. SAFE Result, 18.5s OverallTime, 9 OverallIterations, 5 TraceHistogramMax, 12.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.8s HoareAnnotationTime, HoareTripleCheckerStatistics: 1581 SDtfs, 7534 SDslu, 1665 SDs, 0 SdLazy, 9812 SolverSat, 1951 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.0s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 1782 GetRequests, 1680 SyntacticMatches, 13 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7299occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.6s AbstIntTime, 6 AbstIntIterations, 2 AbstIntStrong, 0.9963426785758382 AbsIntWeakeningRatio, 0.26666666666666666 AbsIntAvgWeakeningVarsNumRemoved, 25.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 394 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 184 PreInvPairs, 272 NumberOfFragments, 339 HoareAnnotationTreeSize, 184 FomulaSimplifications, 6500 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3972 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 2035 NumberOfCodeBlocks, 2035 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2721 ConstructedInterpolants, 0 QuantifiedInterpolants, 1006775 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1823 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 17 InterpolantComputations, 5 PerfectInterpolantSequences, 1210/1384 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...