./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label27_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b02acf8e-df17-4965-8763-c235ba17fc6e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b02acf8e-df17-4965-8763-c235ba17fc6e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b02acf8e-df17-4965-8763-c235ba17fc6e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b02acf8e-df17-4965-8763-c235ba17fc6e/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label27_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b02acf8e-df17-4965-8763-c235ba17fc6e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b02acf8e-df17-4965-8763-c235ba17fc6e/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 e1af67db67a88433de1a31e57b46e50dcbb6e7d8 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 13:24:11,963 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 13:24:11,964 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 13:24:11,970 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 13:24:11,970 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 13:24:11,971 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 13:24:11,972 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 13:24:11,973 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 13:24:11,974 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 13:24:11,974 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 13:24:11,975 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 13:24:11,975 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 13:24:11,976 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 13:24:11,976 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 13:24:11,977 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 13:24:11,977 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 13:24:11,978 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 13:24:11,979 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 13:24:11,980 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 13:24:11,981 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 13:24:11,981 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 13:24:11,982 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 13:24:11,983 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 13:24:11,984 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 13:24:11,984 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 13:24:11,984 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 13:24:11,985 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 13:24:11,985 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 13:24:11,986 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 13:24:11,987 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 13:24:11,987 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 13:24:11,987 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 13:24:11,987 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 13:24:11,987 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 13:24:11,988 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 13:24:11,989 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 13:24:11,989 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b02acf8e-df17-4965-8763-c235ba17fc6e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 13:24:11,996 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 13:24:11,996 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 13:24:11,997 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 13:24:11,997 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 13:24:11,997 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 13:24:11,997 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 13:24:11,997 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 13:24:11,997 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 13:24:11,998 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 13:24:11,998 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 13:24:11,998 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 13:24:11,998 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 13:24:11,998 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 13:24:11,999 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 13:24:11,999 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 13:24:11,999 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 13:24:11,999 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 13:24:11,999 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 13:24:11,999 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 13:24:11,999 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 13:24:11,999 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 13:24:12,000 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 13:24:12,000 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 13:24:12,000 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 13:24:12,000 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 13:24:12,000 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 13:24:12,000 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 13:24:12,000 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 13:24:12,000 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 13:24:12,001 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 13:24:12,001 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 13:24:12,001 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 13:24:12,001 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 13:24:12,001 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 13:24:12,001 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 13:24:12,001 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 13:24:12,001 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_b02acf8e-df17-4965-8763-c235ba17fc6e/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 -> e1af67db67a88433de1a31e57b46e50dcbb6e7d8 [2018-12-09 13:24:12,019 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 13:24:12,028 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 13:24:12,032 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 13:24:12,033 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 13:24:12,034 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 13:24:12,034 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b02acf8e-df17-4965-8763-c235ba17fc6e/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem01_label27_true-unreach-call_false-termination.c [2018-12-09 13:24:12,077 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b02acf8e-df17-4965-8763-c235ba17fc6e/bin-2019/utaipan/data/3ae5026fe/28d84d244b4d41b0bdefff8ad73c3198/FLAGdef7ceff0 [2018-12-09 13:24:12,536 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 13:24:12,536 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b02acf8e-df17-4965-8763-c235ba17fc6e/sv-benchmarks/c/eca-rers2012/Problem01_label27_true-unreach-call_false-termination.c [2018-12-09 13:24:12,544 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b02acf8e-df17-4965-8763-c235ba17fc6e/bin-2019/utaipan/data/3ae5026fe/28d84d244b4d41b0bdefff8ad73c3198/FLAGdef7ceff0 [2018-12-09 13:24:12,553 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b02acf8e-df17-4965-8763-c235ba17fc6e/bin-2019/utaipan/data/3ae5026fe/28d84d244b4d41b0bdefff8ad73c3198 [2018-12-09 13:24:12,555 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 13:24:12,556 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 13:24:12,557 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 13:24:12,557 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 13:24:12,559 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 13:24:12,559 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:24:12" (1/1) ... [2018-12-09 13:24:12,561 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ba821c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:12, skipping insertion in model container [2018-12-09 13:24:12,561 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:24:12" (1/1) ... [2018-12-09 13:24:12,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 13:24:12,595 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 13:24:12,786 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 13:24:12,790 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 13:24:12,876 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 13:24:12,885 INFO L195 MainTranslator]: Completed translation [2018-12-09 13:24:12,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:12 WrapperNode [2018-12-09 13:24:12,885 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 13:24:12,886 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 13:24:12,886 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 13:24:12,886 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 13:24:12,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:12" (1/1) ... [2018-12-09 13:24:12,900 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:12" (1/1) ... [2018-12-09 13:24:12,904 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 13:24:12,905 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 13:24:12,905 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 13:24:12,905 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 13:24:12,911 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:12" (1/1) ... [2018-12-09 13:24:12,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:12" (1/1) ... [2018-12-09 13:24:12,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:12" (1/1) ... [2018-12-09 13:24:12,914 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:12" (1/1) ... [2018-12-09 13:24:12,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:12" (1/1) ... [2018-12-09 13:24:12,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:12" (1/1) ... [2018-12-09 13:24:12,940 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:12" (1/1) ... [2018-12-09 13:24:12,942 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 13:24:12,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 13:24:12,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 13:24:12,943 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 13:24:12,943 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b02acf8e-df17-4965-8763-c235ba17fc6e/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 [2018-12-09 13:24:12,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 13:24:12,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 13:24:12,983 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-12-09 13:24:12,984 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-12-09 13:24:12,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 13:24:12,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 13:24:12,984 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 13:24:12,984 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 13:24:13,565 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 13:24:13,565 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-09 13:24:13,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:24:13 BoogieIcfgContainer [2018-12-09 13:24:13,566 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 13:24:13,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 13:24:13,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 13:24:13,569 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 13:24:13,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 01:24:12" (1/3) ... [2018-12-09 13:24:13,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1defa1f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:24:13, skipping insertion in model container [2018-12-09 13:24:13,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:12" (2/3) ... [2018-12-09 13:24:13,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1defa1f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:24:13, skipping insertion in model container [2018-12-09 13:24:13,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:24:13" (3/3) ... [2018-12-09 13:24:13,572 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label27_true-unreach-call_false-termination.c [2018-12-09 13:24:13,579 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 13:24:13,586 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 13:24:13,599 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 13:24:13,625 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 13:24:13,626 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 13:24:13,626 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 13:24:13,626 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 13:24:13,626 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 13:24:13,626 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 13:24:13,626 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 13:24:13,626 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 13:24:13,640 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2018-12-09 13:24:13,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-12-09 13:24:13,645 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:24:13,646 INFO L402 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] [2018-12-09 13:24:13,648 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 13:24:13,651 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:24:13,651 INFO L82 PathProgramCache]: Analyzing trace with hash -2139727354, now seen corresponding path program 1 times [2018-12-09 13:24:13,653 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 13:24:13,683 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:24:13,683 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:24:13,683 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:24:13,684 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 13:24:13,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:24:13,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:24:13,927 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 13:24:13,927 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 13:24:13,927 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 13:24:13,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 13:24:13,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 13:24:13,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 13:24:13,941 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 4 states. [2018-12-09 13:24:14,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:24:14,600 INFO L93 Difference]: Finished difference Result 698 states and 1223 transitions. [2018-12-09 13:24:14,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 13:24:14,601 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 94 [2018-12-09 13:24:14,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:24:14,610 INFO L225 Difference]: With dead ends: 698 [2018-12-09 13:24:14,610 INFO L226 Difference]: Without dead ends: 413 [2018-12-09 13:24:14,613 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 13:24:14,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2018-12-09 13:24:14,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 278. [2018-12-09 13:24:14,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2018-12-09 13:24:14,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 400 transitions. [2018-12-09 13:24:14,649 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 400 transitions. Word has length 94 [2018-12-09 13:24:14,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:24:14,650 INFO L480 AbstractCegarLoop]: Abstraction has 278 states and 400 transitions. [2018-12-09 13:24:14,650 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 13:24:14,650 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 400 transitions. [2018-12-09 13:24:14,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-12-09 13:24:14,652 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:24:14,653 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-12-09 13:24:14,653 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 13:24:14,653 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:24:14,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1455606109, now seen corresponding path program 1 times [2018-12-09 13:24:14,653 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 13:24:14,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:24:14,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:24:14,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:24:14,654 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 13:24:14,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:24:14,727 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:24:14,728 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 13:24:14,728 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 13:24:14,728 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 13:24:14,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 13:24:14,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 13:24:14,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-09 13:24:14,729 INFO L87 Difference]: Start difference. First operand 278 states and 400 transitions. Second operand 6 states. [2018-12-09 13:24:15,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:24:15,073 INFO L93 Difference]: Finished difference Result 840 states and 1243 transitions. [2018-12-09 13:24:15,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 13:24:15,074 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 104 [2018-12-09 13:24:15,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:24:15,077 INFO L225 Difference]: With dead ends: 840 [2018-12-09 13:24:15,078 INFO L226 Difference]: Without dead ends: 568 [2018-12-09 13:24:15,079 INFO L631 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 [2018-12-09 13:24:15,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2018-12-09 13:24:15,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 556. [2018-12-09 13:24:15,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2018-12-09 13:24:15,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 799 transitions. [2018-12-09 13:24:15,108 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 799 transitions. Word has length 104 [2018-12-09 13:24:15,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:24:15,108 INFO L480 AbstractCegarLoop]: Abstraction has 556 states and 799 transitions. [2018-12-09 13:24:15,108 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 13:24:15,109 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 799 transitions. [2018-12-09 13:24:15,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-12-09 13:24:15,111 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:24:15,112 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-12-09 13:24:15,112 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 13:24:15,112 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:24:15,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1089398559, now seen corresponding path program 1 times [2018-12-09 13:24:15,112 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 13:24:15,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:24:15,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:24:15,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:24:15,114 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 13:24:15,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:24:15,177 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:24:15,177 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 13:24:15,177 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 13:24:15,178 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 13:24:15,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 13:24:15,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 13:24:15,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 13:24:15,179 INFO L87 Difference]: Start difference. First operand 556 states and 799 transitions. Second operand 3 states. [2018-12-09 13:24:15,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:24:15,467 INFO L93 Difference]: Finished difference Result 1513 states and 2201 transitions. [2018-12-09 13:24:15,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 13:24:15,468 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2018-12-09 13:24:15,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:24:15,471 INFO L225 Difference]: With dead ends: 1513 [2018-12-09 13:24:15,471 INFO L226 Difference]: Without dead ends: 963 [2018-12-09 13:24:15,472 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 13:24:15,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2018-12-09 13:24:15,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 963. [2018-12-09 13:24:15,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 963 states. [2018-12-09 13:24:15,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1344 transitions. [2018-12-09 13:24:15,488 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1344 transitions. Word has length 105 [2018-12-09 13:24:15,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:24:15,488 INFO L480 AbstractCegarLoop]: Abstraction has 963 states and 1344 transitions. [2018-12-09 13:24:15,488 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 13:24:15,488 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1344 transitions. [2018-12-09 13:24:15,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-12-09 13:24:15,490 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:24:15,490 INFO L402 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] [2018-12-09 13:24:15,490 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 13:24:15,491 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:24:15,491 INFO L82 PathProgramCache]: Analyzing trace with hash -414370937, now seen corresponding path program 1 times [2018-12-09 13:24:15,491 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 13:24:15,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:24:15,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:24:15,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:24:15,491 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 13:24:15,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:24:15,539 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:24:15,539 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 13:24:15,539 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 13:24:15,539 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 13:24:15,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 13:24:15,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 13:24:15,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-09 13:24:15,540 INFO L87 Difference]: Start difference. First operand 963 states and 1344 transitions. Second operand 6 states. [2018-12-09 13:24:15,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:24:15,969 INFO L93 Difference]: Finished difference Result 2502 states and 3606 transitions. [2018-12-09 13:24:15,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 13:24:15,969 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 117 [2018-12-09 13:24:15,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:24:15,975 INFO L225 Difference]: With dead ends: 2502 [2018-12-09 13:24:15,975 INFO L226 Difference]: Without dead ends: 1545 [2018-12-09 13:24:15,977 INFO L631 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 [2018-12-09 13:24:15,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1545 states. [2018-12-09 13:24:16,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1545 to 1527. [2018-12-09 13:24:16,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1527 states. [2018-12-09 13:24:16,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 2111 transitions. [2018-12-09 13:24:16,010 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 2111 transitions. Word has length 117 [2018-12-09 13:24:16,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:24:16,010 INFO L480 AbstractCegarLoop]: Abstraction has 1527 states and 2111 transitions. [2018-12-09 13:24:16,010 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 13:24:16,010 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 2111 transitions. [2018-12-09 13:24:16,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-12-09 13:24:16,012 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:24:16,013 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2018-12-09 13:24:16,013 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 13:24:16,013 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:24:16,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1750271410, now seen corresponding path program 1 times [2018-12-09 13:24:16,013 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 13:24:16,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:24:16,014 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:24:16,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:24:16,014 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 13:24:16,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:24:16,065 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:24:16,065 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 13:24:16,065 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 13:24:16,066 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 129 with the following transitions: [2018-12-09 13:24:16,067 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [17], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [65], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [397], [399], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-09 13:24:16,095 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 13:24:16,095 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 13:24:16,449 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 13:24:16,450 INFO L272 AbstractInterpreter]: Visited 98 different actions 189 times. Merged at 3 different actions 3 times. Never widened. Performed 2779 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2779 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-12-09 13:24:16,454 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:24:16,455 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 13:24:16,677 INFO L227 lantSequenceWeakener]: Weakened 125 states. On average, predicates are now at 81.46% of their original sizes. [2018-12-09 13:24:16,678 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 13:24:16,736 INFO L418 sIntCurrentIteration]: We unified 127 AI predicates to 127 [2018-12-09 13:24:16,736 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 13:24:16,736 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 13:24:16,737 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-12-09 13:24:16,737 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 13:24:16,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 13:24:16,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 13:24:16,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-09 13:24:16,737 INFO L87 Difference]: Start difference. First operand 1527 states and 2111 transitions. Second operand 10 states. [2018-12-09 13:24:19,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:24:19,982 INFO L93 Difference]: Finished difference Result 3698 states and 5119 transitions. [2018-12-09 13:24:19,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-12-09 13:24:19,982 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 128 [2018-12-09 13:24:19,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:24:19,986 INFO L225 Difference]: With dead ends: 3698 [2018-12-09 13:24:19,986 INFO L226 Difference]: Without dead ends: 2177 [2018-12-09 13:24:19,988 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 137 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2018-12-09 13:24:19,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2177 states. [2018-12-09 13:24:20,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2177 to 1525. [2018-12-09 13:24:20,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1525 states. [2018-12-09 13:24:20,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 2066 transitions. [2018-12-09 13:24:20,014 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 2066 transitions. Word has length 128 [2018-12-09 13:24:20,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:24:20,014 INFO L480 AbstractCegarLoop]: Abstraction has 1525 states and 2066 transitions. [2018-12-09 13:24:20,014 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 13:24:20,014 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 2066 transitions. [2018-12-09 13:24:20,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-12-09 13:24:20,016 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:24:20,016 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-12-09 13:24:20,017 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 13:24:20,017 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:24:20,017 INFO L82 PathProgramCache]: Analyzing trace with hash 537477384, now seen corresponding path program 1 times [2018-12-09 13:24:20,017 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 13:24:20,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:24:20,018 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:24:20,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:24:20,018 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 13:24:20,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:24:20,085 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 42 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:24:20,085 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 13:24:20,085 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 13:24:20,086 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 137 with the following transitions: [2018-12-09 13:24:20,086 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [109], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [397], [399], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-09 13:24:20,088 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 13:24:20,088 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 13:24:20,181 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 13:24:20,181 INFO L272 AbstractInterpreter]: Visited 98 different actions 190 times. Merged at 4 different actions 4 times. Never widened. Performed 2661 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2661 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-12-09 13:24:20,183 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:24:20,183 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 13:24:20,293 INFO L227 lantSequenceWeakener]: Weakened 133 states. On average, predicates are now at 81.47% of their original sizes. [2018-12-09 13:24:20,294 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 13:24:20,343 INFO L418 sIntCurrentIteration]: We unified 135 AI predicates to 135 [2018-12-09 13:24:20,344 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 13:24:20,344 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 13:24:20,344 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-12-09 13:24:20,344 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 13:24:20,344 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 13:24:20,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 13:24:20,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-09 13:24:20,344 INFO L87 Difference]: Start difference. First operand 1525 states and 2066 transitions. Second operand 10 states. [2018-12-09 13:24:22,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:24:22,490 INFO L93 Difference]: Finished difference Result 3318 states and 4444 transitions. [2018-12-09 13:24:22,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-09 13:24:22,490 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 136 [2018-12-09 13:24:22,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:24:22,493 INFO L225 Difference]: With dead ends: 3318 [2018-12-09 13:24:22,493 INFO L226 Difference]: Without dead ends: 1799 [2018-12-09 13:24:22,495 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 143 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-12-09 13:24:22,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1799 states. [2018-12-09 13:24:22,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1799 to 1797. [2018-12-09 13:24:22,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1797 states. [2018-12-09 13:24:22,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1797 states to 1797 states and 2363 transitions. [2018-12-09 13:24:22,519 INFO L78 Accepts]: Start accepts. Automaton has 1797 states and 2363 transitions. Word has length 136 [2018-12-09 13:24:22,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:24:22,519 INFO L480 AbstractCegarLoop]: Abstraction has 1797 states and 2363 transitions. [2018-12-09 13:24:22,519 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 13:24:22,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1797 states and 2363 transitions. [2018-12-09 13:24:22,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-12-09 13:24:22,521 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:24:22,521 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 13:24:22,521 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 13:24:22,521 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:24:22,522 INFO L82 PathProgramCache]: Analyzing trace with hash 937778913, now seen corresponding path program 1 times [2018-12-09 13:24:22,522 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 13:24:22,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:24:22,522 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:24:22,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:24:22,522 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 13:24:22,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:24:22,554 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 54 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-12-09 13:24:22,554 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 13:24:22,555 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 13:24:22,555 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 148 with the following transitions: [2018-12-09 13:24:22,555 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [17], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [109], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [397], [399], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-09 13:24:22,557 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 13:24:22,557 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 13:24:22,710 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 13:24:22,710 INFO L272 AbstractInterpreter]: Visited 99 different actions 294 times. Merged at 6 different actions 17 times. Never widened. Performed 4274 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4274 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 4 fixpoints after 3 different actions. Largest state had 42 variables. [2018-12-09 13:24:22,713 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:24:22,713 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 13:24:22,821 INFO L227 lantSequenceWeakener]: Weakened 144 states. On average, predicates are now at 83.23% of their original sizes. [2018-12-09 13:24:22,822 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 13:24:22,873 INFO L418 sIntCurrentIteration]: We unified 146 AI predicates to 146 [2018-12-09 13:24:22,873 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 13:24:22,873 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 13:24:22,873 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 12 [2018-12-09 13:24:22,873 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 13:24:22,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 13:24:22,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 13:24:22,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-09 13:24:22,874 INFO L87 Difference]: Start difference. First operand 1797 states and 2363 transitions. Second operand 9 states. [2018-12-09 13:24:25,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:24:25,009 INFO L93 Difference]: Finished difference Result 3344 states and 4467 transitions. [2018-12-09 13:24:25,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-09 13:24:25,009 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 147 [2018-12-09 13:24:25,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:24:25,012 INFO L225 Difference]: With dead ends: 3344 [2018-12-09 13:24:25,012 INFO L226 Difference]: Without dead ends: 1825 [2018-12-09 13:24:25,014 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 153 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2018-12-09 13:24:25,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1825 states. [2018-12-09 13:24:25,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1825 to 1807. [2018-12-09 13:24:25,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1807 states. [2018-12-09 13:24:25,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1807 states to 1807 states and 2353 transitions. [2018-12-09 13:24:25,043 INFO L78 Accepts]: Start accepts. Automaton has 1807 states and 2353 transitions. Word has length 147 [2018-12-09 13:24:25,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:24:25,043 INFO L480 AbstractCegarLoop]: Abstraction has 1807 states and 2353 transitions. [2018-12-09 13:24:25,043 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 13:24:25,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1807 states and 2353 transitions. [2018-12-09 13:24:25,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2018-12-09 13:24:25,046 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:24:25,046 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-12-09 13:24:25,046 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 13:24:25,046 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:24:25,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1020950210, now seen corresponding path program 1 times [2018-12-09 13:24:25,046 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 13:24:25,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:24:25,047 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:24:25,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:24:25,047 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 13:24:25,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:24:25,106 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 74 proven. 14 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2018-12-09 13:24:25,106 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 13:24:25,107 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 13:24:25,107 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 167 with the following transitions: [2018-12-09 13:24:25,107 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [17], [18], [22], [26], [30], [34], [38], [42], [46], [49], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [109], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [397], [399], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-09 13:24:25,109 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 13:24:25,109 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 13:24:25,359 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 13:24:25,359 INFO L272 AbstractInterpreter]: Visited 101 different actions 401 times. Merged at 8 different actions 30 times. Never widened. Performed 6014 root evaluator evaluations with a maximum evaluation depth of 3. Performed 6014 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 8 fixpoints after 3 different actions. Largest state had 42 variables. [2018-12-09 13:24:25,361 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:24:25,362 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 13:24:25,362 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 13:24:25,362 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b02acf8e-df17-4965-8763-c235ba17fc6e/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 [2018-12-09 13:24:25,369 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:24:25,369 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 13:24:25,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:24:25,433 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 13:24:25,484 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 55 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-12-09 13:24:25,484 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 13:24:25,552 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 74 proven. 14 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2018-12-09 13:24:25,579 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 13:24:25,579 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2018-12-09 13:24:25,579 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 13:24:25,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 13:24:25,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 13:24:25,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-12-09 13:24:25,580 INFO L87 Difference]: Start difference. First operand 1807 states and 2353 transitions. Second operand 8 states. [2018-12-09 13:24:27,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:24:27,099 INFO L93 Difference]: Finished difference Result 5026 states and 6741 transitions. [2018-12-09 13:24:27,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-12-09 13:24:27,099 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 166 [2018-12-09 13:24:27,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:24:27,106 INFO L225 Difference]: With dead ends: 5026 [2018-12-09 13:24:27,107 INFO L226 Difference]: Without dead ends: 3068 [2018-12-09 13:24:27,112 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=193, Invalid=677, Unknown=0, NotChecked=0, Total=870 [2018-12-09 13:24:27,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3068 states. [2018-12-09 13:24:27,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3068 to 2631. [2018-12-09 13:24:27,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2631 states. [2018-12-09 13:24:27,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2631 states to 2631 states and 3025 transitions. [2018-12-09 13:24:27,170 INFO L78 Accepts]: Start accepts. Automaton has 2631 states and 3025 transitions. Word has length 166 [2018-12-09 13:24:27,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:24:27,170 INFO L480 AbstractCegarLoop]: Abstraction has 2631 states and 3025 transitions. [2018-12-09 13:24:27,170 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 13:24:27,170 INFO L276 IsEmpty]: Start isEmpty. Operand 2631 states and 3025 transitions. [2018-12-09 13:24:27,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2018-12-09 13:24:27,175 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:24:27,175 INFO L402 BasicCegarLoop]: trace histogram [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, 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] [2018-12-09 13:24:27,175 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 13:24:27,176 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:24:27,176 INFO L82 PathProgramCache]: Analyzing trace with hash -1312161014, now seen corresponding path program 1 times [2018-12-09 13:24:27,176 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 13:24:27,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:24:27,177 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:24:27,177 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:24:27,177 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 13:24:27,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:24:27,456 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 75 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:24:27,456 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 13:24:27,456 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 13:24:27,456 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 170 with the following transitions: [2018-12-09 13:24:27,456 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [109], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [397], [399], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-09 13:24:27,458 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 13:24:27,458 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 13:24:27,547 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 13:24:27,547 INFO L272 AbstractInterpreter]: Visited 98 different actions 190 times. Merged at 4 different actions 4 times. Never widened. Performed 2716 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2716 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-12-09 13:24:27,548 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:24:27,548 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 13:24:27,666 INFO L227 lantSequenceWeakener]: Weakened 166 states. On average, predicates are now at 81.49% of their original sizes. [2018-12-09 13:24:27,666 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 13:24:27,698 INFO L418 sIntCurrentIteration]: We unified 168 AI predicates to 168 [2018-12-09 13:24:27,698 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 13:24:27,698 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 13:24:27,698 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2018-12-09 13:24:27,698 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 13:24:27,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 13:24:27,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 13:24:27,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-09 13:24:27,699 INFO L87 Difference]: Start difference. First operand 2631 states and 3025 transitions. Second operand 10 states. [2018-12-09 13:24:29,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:24:29,341 INFO L93 Difference]: Finished difference Result 5260 states and 6112 transitions. [2018-12-09 13:24:29,341 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-09 13:24:29,341 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 169 [2018-12-09 13:24:29,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:24:29,346 INFO L225 Difference]: With dead ends: 5260 [2018-12-09 13:24:29,346 INFO L226 Difference]: Without dead ends: 2907 [2018-12-09 13:24:29,349 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 177 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-12-09 13:24:29,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2907 states. [2018-12-09 13:24:29,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2907 to 2905. [2018-12-09 13:24:29,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2905 states. [2018-12-09 13:24:29,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2905 states to 2905 states and 3322 transitions. [2018-12-09 13:24:29,386 INFO L78 Accepts]: Start accepts. Automaton has 2905 states and 3322 transitions. Word has length 169 [2018-12-09 13:24:29,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:24:29,386 INFO L480 AbstractCegarLoop]: Abstraction has 2905 states and 3322 transitions. [2018-12-09 13:24:29,386 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 13:24:29,386 INFO L276 IsEmpty]: Start isEmpty. Operand 2905 states and 3322 transitions. [2018-12-09 13:24:29,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-12-09 13:24:29,390 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:24:29,390 INFO L402 BasicCegarLoop]: trace histogram [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, 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, 1] [2018-12-09 13:24:29,390 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 13:24:29,390 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:24:29,390 INFO L82 PathProgramCache]: Analyzing trace with hash 90800783, now seen corresponding path program 1 times [2018-12-09 13:24:29,390 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 13:24:29,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:24:29,391 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:24:29,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:24:29,391 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 13:24:29,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:24:29,511 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 79 proven. 39 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 13:24:29,511 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 13:24:29,511 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 13:24:29,511 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 178 with the following transitions: [2018-12-09 13:24:29,511 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [109], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [397], [399], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-09 13:24:29,513 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 13:24:29,513 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 13:24:29,696 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 13:24:29,696 INFO L272 AbstractInterpreter]: Visited 100 different actions 396 times. Merged at 7 different actions 29 times. Never widened. Performed 5814 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5814 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 7 fixpoints after 3 different actions. Largest state had 42 variables. [2018-12-09 13:24:29,698 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:24:29,698 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 13:24:29,698 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 13:24:29,698 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b02acf8e-df17-4965-8763-c235ba17fc6e/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 [2018-12-09 13:24:29,703 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:24:29,703 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 13:24:29,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:24:29,746 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 13:24:29,773 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 90 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-12-09 13:24:29,773 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 13:24:29,817 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 84 proven. 34 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 13:24:29,832 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 13:24:29,832 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 13 [2018-12-09 13:24:29,832 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 13:24:29,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 13:24:29,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 13:24:29,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-12-09 13:24:29,833 INFO L87 Difference]: Start difference. First operand 2905 states and 3322 transitions. Second operand 11 states. [2018-12-09 13:24:30,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:24:30,756 INFO L93 Difference]: Finished difference Result 9007 states and 10773 transitions. [2018-12-09 13:24:30,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-09 13:24:30,756 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 177 [2018-12-09 13:24:30,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:24:30,766 INFO L225 Difference]: With dead ends: 9007 [2018-12-09 13:24:30,766 INFO L226 Difference]: Without dead ends: 6517 [2018-12-09 13:24:30,769 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 357 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2018-12-09 13:24:30,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6517 states. [2018-12-09 13:24:30,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6517 to 6241. [2018-12-09 13:24:30,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6241 states. [2018-12-09 13:24:30,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6241 states to 6241 states and 7300 transitions. [2018-12-09 13:24:30,838 INFO L78 Accepts]: Start accepts. Automaton has 6241 states and 7300 transitions. Word has length 177 [2018-12-09 13:24:30,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:24:30,838 INFO L480 AbstractCegarLoop]: Abstraction has 6241 states and 7300 transitions. [2018-12-09 13:24:30,838 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 13:24:30,838 INFO L276 IsEmpty]: Start isEmpty. Operand 6241 states and 7300 transitions. [2018-12-09 13:24:30,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2018-12-09 13:24:30,844 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:24:30,844 INFO L402 BasicCegarLoop]: trace histogram [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, 3, 3, 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] [2018-12-09 13:24:30,844 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 13:24:30,844 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:24:30,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1000985743, now seen corresponding path program 1 times [2018-12-09 13:24:30,844 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 13:24:30,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:24:30,845 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:24:30,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:24:30,845 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 13:24:30,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:24:30,944 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 95 proven. 32 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 13:24:30,944 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 13:24:30,945 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 13:24:30,945 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 187 with the following transitions: [2018-12-09 13:24:30,945 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [109], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [173], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [397], [399], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-09 13:24:30,947 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 13:24:30,947 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 13:24:31,096 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 13:24:31,096 INFO L272 AbstractInterpreter]: Visited 99 different actions 289 times. Merged at 6 different actions 12 times. Never widened. Performed 4056 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4056 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 2 different actions. Largest state had 42 variables. [2018-12-09 13:24:31,097 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:24:31,097 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 13:24:31,219 INFO L227 lantSequenceWeakener]: Weakened 183 states. On average, predicates are now at 83.13% of their original sizes. [2018-12-09 13:24:31,219 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 13:24:31,295 INFO L418 sIntCurrentIteration]: We unified 185 AI predicates to 185 [2018-12-09 13:24:31,295 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 13:24:31,295 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 13:24:31,295 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-12-09 13:24:31,295 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 13:24:31,295 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 13:24:31,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 13:24:31,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-09 13:24:31,295 INFO L87 Difference]: Start difference. First operand 6241 states and 7300 transitions. Second operand 10 states. [2018-12-09 13:24:32,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:24:32,836 INFO L93 Difference]: Finished difference Result 12624 states and 14844 transitions. [2018-12-09 13:24:32,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-09 13:24:32,836 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 186 [2018-12-09 13:24:32,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:24:32,849 INFO L225 Difference]: With dead ends: 12624 [2018-12-09 13:24:32,849 INFO L226 Difference]: Without dead ends: 6935 [2018-12-09 13:24:32,855 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 193 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-12-09 13:24:32,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6935 states. [2018-12-09 13:24:32,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6935 to 6930. [2018-12-09 13:24:32,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6930 states. [2018-12-09 13:24:32,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6930 states to 6930 states and 8074 transitions. [2018-12-09 13:24:32,929 INFO L78 Accepts]: Start accepts. Automaton has 6930 states and 8074 transitions. Word has length 186 [2018-12-09 13:24:32,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:24:32,930 INFO L480 AbstractCegarLoop]: Abstraction has 6930 states and 8074 transitions. [2018-12-09 13:24:32,930 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 13:24:32,930 INFO L276 IsEmpty]: Start isEmpty. Operand 6930 states and 8074 transitions. [2018-12-09 13:24:32,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2018-12-09 13:24:32,935 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:24:32,935 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 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, 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] [2018-12-09 13:24:32,935 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 13:24:32,935 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:24:32,935 INFO L82 PathProgramCache]: Analyzing trace with hash 1969481278, now seen corresponding path program 1 times [2018-12-09 13:24:32,935 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 13:24:32,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:24:32,936 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:24:32,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:24:32,936 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 13:24:32,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:24:33,017 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 99 proven. 60 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-12-09 13:24:33,018 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 13:24:33,018 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 13:24:33,018 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 197 with the following transitions: [2018-12-09 13:24:33,018 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [49], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [109], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [397], [399], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-09 13:24:33,020 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 13:24:33,020 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 13:24:33,221 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 13:24:33,221 INFO L272 AbstractInterpreter]: Visited 101 different actions 398 times. Merged at 8 different actions 27 times. Never widened. Performed 5885 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5885 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 9 fixpoints after 3 different actions. Largest state had 42 variables. [2018-12-09 13:24:33,222 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:24:33,222 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 13:24:33,222 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 13:24:33,222 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b02acf8e-df17-4965-8763-c235ba17fc6e/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 [2018-12-09 13:24:33,229 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:24:33,229 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 13:24:33,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:24:33,284 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 13:24:33,319 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 116 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-12-09 13:24:33,319 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 13:24:33,375 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 104 proven. 14 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-12-09 13:24:33,390 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 13:24:33,390 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 14 [2018-12-09 13:24:33,390 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 13:24:33,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-09 13:24:33,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-09 13:24:33,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2018-12-09 13:24:33,391 INFO L87 Difference]: Start difference. First operand 6930 states and 8074 transitions. Second operand 12 states. [2018-12-09 13:24:35,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:24:35,046 INFO L93 Difference]: Finished difference Result 16888 states and 20385 transitions. [2018-12-09 13:24:35,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-12-09 13:24:35,047 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 196 [2018-12-09 13:24:35,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:24:35,065 INFO L225 Difference]: With dead ends: 16888 [2018-12-09 13:24:35,065 INFO L226 Difference]: Without dead ends: 10236 [2018-12-09 13:24:35,073 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 417 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=411, Invalid=1395, Unknown=0, NotChecked=0, Total=1806 [2018-12-09 13:24:35,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10236 states. [2018-12-09 13:24:35,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10236 to 9122. [2018-12-09 13:24:35,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9122 states. [2018-12-09 13:24:35,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9122 states to 9122 states and 10710 transitions. [2018-12-09 13:24:35,185 INFO L78 Accepts]: Start accepts. Automaton has 9122 states and 10710 transitions. Word has length 196 [2018-12-09 13:24:35,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:24:35,185 INFO L480 AbstractCegarLoop]: Abstraction has 9122 states and 10710 transitions. [2018-12-09 13:24:35,185 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-09 13:24:35,186 INFO L276 IsEmpty]: Start isEmpty. Operand 9122 states and 10710 transitions. [2018-12-09 13:24:35,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2018-12-09 13:24:35,193 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:24:35,193 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1] [2018-12-09 13:24:35,193 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 13:24:35,193 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:24:35,193 INFO L82 PathProgramCache]: Analyzing trace with hash -1276746019, now seen corresponding path program 1 times [2018-12-09 13:24:35,193 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 13:24:35,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:24:35,194 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:24:35,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:24:35,194 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 13:24:35,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:24:35,296 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 168 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:24:35,296 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 13:24:35,296 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 13:24:35,296 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 203 with the following transitions: [2018-12-09 13:24:35,296 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [105], [106], [109], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [397], [399], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-09 13:24:35,297 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 13:24:35,297 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 13:24:35,478 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 13:24:35,478 INFO L272 AbstractInterpreter]: Visited 100 different actions 389 times. Merged at 7 different actions 22 times. Never widened. Performed 5861 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5861 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 6 fixpoints after 2 different actions. Largest state had 42 variables. [2018-12-09 13:24:35,481 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:24:35,481 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 13:24:35,481 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 13:24:35,481 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b02acf8e-df17-4965-8763-c235ba17fc6e/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 [2018-12-09 13:24:35,488 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:24:35,488 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 13:24:35,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:24:35,532 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 13:24:35,558 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2018-12-09 13:24:35,558 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 13:24:35,596 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2018-12-09 13:24:35,620 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-09 13:24:35,621 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [9] total 10 [2018-12-09 13:24:35,621 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 13:24:35,621 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 13:24:35,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 13:24:35,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-12-09 13:24:35,621 INFO L87 Difference]: Start difference. First operand 9122 states and 10710 transitions. Second operand 3 states. [2018-12-09 13:24:35,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:24:35,870 INFO L93 Difference]: Finished difference Result 14080 states and 16552 transitions. [2018-12-09 13:24:35,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 13:24:35,870 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 202 [2018-12-09 13:24:35,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:24:35,871 INFO L225 Difference]: With dead ends: 14080 [2018-12-09 13:24:35,871 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 13:24:35,889 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 402 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-12-09 13:24:35,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 13:24:35,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 13:24:35,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 13:24:35,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 13:24:35,889 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 202 [2018-12-09 13:24:35,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:24:35,890 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 13:24:35,890 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 13:24:35,890 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 13:24:35,890 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 13:24:35,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 13:24:36,071 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,072 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,073 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,076 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,082 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,085 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,086 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,095 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,103 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,104 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,105 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,105 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,106 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,107 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,109 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,111 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,113 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,114 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,116 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,116 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,118 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,119 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,120 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,121 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,121 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,125 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,127 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,129 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,130 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,131 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,134 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,135 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,136 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,136 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,137 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,140 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,142 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,144 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,146 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,147 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,149 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,150 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,151 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,152 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,153 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,158 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,159 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,166 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,167 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,169 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,171 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,180 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,181 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,224 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,228 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,229 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,231 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,232 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,233 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,235 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,238 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,239 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,241 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,242 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,244 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,245 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,247 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,248 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,249 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,250 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,252 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,253 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,257 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,259 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,263 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,266 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,268 WARN L180 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 130 [2018-12-09 13:24:36,274 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,275 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,276 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,277 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,282 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,283 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,284 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,284 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,292 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,296 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,317 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,324 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,325 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,325 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,326 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,326 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,326 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,328 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,329 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,331 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,332 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,333 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,334 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,334 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,335 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,336 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,344 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,345 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,346 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,349 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,350 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,351 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,351 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,354 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,356 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,357 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,361 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,364 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,366 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,377 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,380 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,383 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,386 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,391 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,399 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,402 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,404 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,405 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,406 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,408 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,412 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,415 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,418 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,427 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,428 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,431 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,435 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,436 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,438 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,440 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,444 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:24:36,444 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 156 [2018-12-09 13:24:37,813 WARN L180 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 297 DAG size of output: 106 [2018-12-09 13:24:38,146 WARN L180 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 77 [2018-12-09 13:24:38,565 WARN L180 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 77 [2018-12-09 13:24:38,567 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 13:24:38,567 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a7~0 |old(~a7~0)|) (= |old(~a8~0)| ~a8~0) (= |old(~a20~0)| ~a20~0) (= ~a17~0 |old(~a17~0)|) (= |old(~a16~0)| ~a16~0)) [2018-12-09 13:24:38,567 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 13:24:38,567 INFO L448 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2018-12-09 13:24:38,567 INFO L448 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2018-12-09 13:24:38,567 INFO L448 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,567 INFO L448 ceAbstractionStarter]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,567 INFO L448 ceAbstractionStarter]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,567 INFO L448 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,568 INFO L448 ceAbstractionStarter]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,568 INFO L448 ceAbstractionStarter]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,568 INFO L448 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2018-12-09 13:24:38,568 INFO L448 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2018-12-09 13:24:38,568 INFO L448 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2018-12-09 13:24:38,568 INFO L448 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2018-12-09 13:24:38,568 INFO L448 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2018-12-09 13:24:38,568 INFO L448 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2018-12-09 13:24:38,568 INFO L448 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2018-12-09 13:24:38,568 INFO L448 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2018-12-09 13:24:38,568 INFO L448 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2018-12-09 13:24:38,568 INFO L448 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2018-12-09 13:24:38,568 INFO L448 ceAbstractionStarter]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,568 INFO L448 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,568 INFO L448 ceAbstractionStarter]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,568 INFO L448 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,568 INFO L448 ceAbstractionStarter]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,568 INFO L448 ceAbstractionStarter]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,568 INFO L448 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2018-12-09 13:24:38,568 INFO L448 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2018-12-09 13:24:38,569 INFO L448 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2018-12-09 13:24:38,569 INFO L448 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2018-12-09 13:24:38,569 INFO L448 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2018-12-09 13:24:38,569 INFO L448 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2018-12-09 13:24:38,569 INFO L448 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2018-12-09 13:24:38,569 INFO L448 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2018-12-09 13:24:38,569 INFO L448 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2018-12-09 13:24:38,569 INFO L448 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2018-12-09 13:24:38,569 INFO L448 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2018-12-09 13:24:38,569 INFO L448 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2018-12-09 13:24:38,569 INFO L448 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2018-12-09 13:24:38,569 INFO L448 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2018-12-09 13:24:38,569 INFO L448 ceAbstractionStarter]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2018-12-09 13:24:38,569 INFO L448 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,569 INFO L448 ceAbstractionStarter]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,569 INFO L448 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,569 INFO L448 ceAbstractionStarter]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,569 INFO L448 ceAbstractionStarter]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,569 INFO L448 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2018-12-09 13:24:38,569 INFO L448 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2018-12-09 13:24:38,569 INFO L448 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2018-12-09 13:24:38,569 INFO L448 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2018-12-09 13:24:38,569 INFO L448 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2018-12-09 13:24:38,570 INFO L448 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2018-12-09 13:24:38,570 INFO L448 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2018-12-09 13:24:38,570 INFO L448 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2018-12-09 13:24:38,570 INFO L448 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2018-12-09 13:24:38,570 INFO L448 ceAbstractionStarter]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,570 INFO L448 ceAbstractionStarter]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,570 INFO L448 ceAbstractionStarter]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,570 INFO L448 ceAbstractionStarter]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,570 INFO L448 ceAbstractionStarter]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,570 INFO L448 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2018-12-09 13:24:38,570 INFO L448 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2018-12-09 13:24:38,570 INFO L448 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2018-12-09 13:24:38,570 INFO L448 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2018-12-09 13:24:38,570 INFO L448 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2018-12-09 13:24:38,570 INFO L448 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2018-12-09 13:24:38,570 INFO L448 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2018-12-09 13:24:38,570 INFO L448 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2018-12-09 13:24:38,570 INFO L448 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2018-12-09 13:24:38,570 INFO L448 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2018-12-09 13:24:38,570 INFO L448 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2018-12-09 13:24:38,570 INFO L448 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2018-12-09 13:24:38,570 INFO L448 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2018-12-09 13:24:38,570 INFO L448 ceAbstractionStarter]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,571 INFO L448 ceAbstractionStarter]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,571 INFO L448 ceAbstractionStarter]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,571 INFO L448 ceAbstractionStarter]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,571 INFO L448 ceAbstractionStarter]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,571 INFO L448 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2018-12-09 13:24:38,571 INFO L448 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2018-12-09 13:24:38,571 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2018-12-09 13:24:38,571 INFO L448 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2018-12-09 13:24:38,571 INFO L448 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2018-12-09 13:24:38,571 INFO L448 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2018-12-09 13:24:38,571 INFO L448 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2018-12-09 13:24:38,571 INFO L448 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2018-12-09 13:24:38,571 INFO L448 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2018-12-09 13:24:38,571 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,571 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,571 INFO L448 ceAbstractionStarter]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,571 INFO L448 ceAbstractionStarter]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,571 INFO L448 ceAbstractionStarter]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,571 INFO L448 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,571 INFO L448 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2018-12-09 13:24:38,571 INFO L448 ceAbstractionStarter]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,571 INFO L448 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2018-12-09 13:24:38,572 INFO L448 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2018-12-09 13:24:38,572 INFO L448 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2018-12-09 13:24:38,572 INFO L448 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2018-12-09 13:24:38,572 INFO L448 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2018-12-09 13:24:38,572 INFO L448 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2018-12-09 13:24:38,572 INFO L448 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2018-12-09 13:24:38,572 INFO L448 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2018-12-09 13:24:38,572 INFO L448 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2018-12-09 13:24:38,572 INFO L448 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2018-12-09 13:24:38,572 INFO L448 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2018-12-09 13:24:38,572 INFO L448 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2018-12-09 13:24:38,572 INFO L448 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2018-12-09 13:24:38,572 INFO L448 ceAbstractionStarter]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,572 INFO L448 ceAbstractionStarter]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,572 INFO L448 ceAbstractionStarter]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,572 INFO L448 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,572 INFO L448 ceAbstractionStarter]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,572 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2018-12-09 13:24:38,572 INFO L448 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2018-12-09 13:24:38,572 INFO L448 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2018-12-09 13:24:38,572 INFO L448 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2018-12-09 13:24:38,572 INFO L448 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2018-12-09 13:24:38,572 INFO L448 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2018-12-09 13:24:38,573 INFO L448 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2018-12-09 13:24:38,573 INFO L448 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2018-12-09 13:24:38,573 INFO L448 ceAbstractionStarter]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,573 INFO L448 ceAbstractionStarter]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,573 INFO L448 ceAbstractionStarter]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,573 INFO L448 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,573 INFO L448 ceAbstractionStarter]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,573 INFO L448 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2018-12-09 13:24:38,573 INFO L448 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2018-12-09 13:24:38,573 INFO L448 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2018-12-09 13:24:38,573 INFO L448 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2018-12-09 13:24:38,573 INFO L448 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2018-12-09 13:24:38,573 INFO L448 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2018-12-09 13:24:38,573 INFO L448 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2018-12-09 13:24:38,573 INFO L448 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2018-12-09 13:24:38,573 INFO L448 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2018-12-09 13:24:38,573 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 440) no Hoare annotation was computed. [2018-12-09 13:24:38,573 INFO L448 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2018-12-09 13:24:38,574 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse26 (= 1 |old(~a20~0)|))) (let ((.cse3 (and (= |old(~a7~0)| |old(~a20~0)|) .cse26)) (.cse14 (not (= 1 |old(~a21~0)|))) (.cse15 (not .cse26)) (.cse0 (= 13 |old(~a8~0)|)) (.cse18 (not (= 8 ~a12~0))) (.cse11 (= |calculate_output_#in~input| 0)) (.cse22 (not (= 1 |old(~a17~0)|))) (.cse12 (= ~a21~0 1)) (.cse23 (= ~a7~0 |old(~a7~0)|)) (.cse7 (= |old(~a8~0)| ~a8~0)) (.cse8 (= |old(~a20~0)| ~a20~0)) (.cse9 (= ~a17~0 |old(~a17~0)|)) (.cse10 (= |old(~a16~0)| ~a16~0))) (let ((.cse2 (and .cse23 .cse7 .cse8 .cse9 .cse10)) (.cse6 (< 0 |old(~a20~0)|)) (.cse5 (< 13 |old(~a8~0)|)) (.cse17 (not (= 0 |old(~a17~0)|))) (.cse21 (and .cse8 .cse10 .cse12 .cse23 .cse7 .cse9)) (.cse4 (= 6 |old(~a16~0)|)) (.cse1 (< 0 |old(~a17~0)|)) (.cse19 (= 0 |old(~a16~0)|)) (.cse25 (< 14 |old(~a8~0)|)) (.cse20 (= 0 |old(~a8~0)|)) (.cse13 (not (= 0 |old(~a7~0)|))) (.cse16 (not (= 15 |old(~a8~0)|))) (.cse27 (and (or .cse14 .cse15 .cse18 .cse11 .cse3 .cse22) (or (or .cse14 .cse15 (not (= 4 |old(~a16~0)|)) (not .cse0)) .cse18 .cse11 .cse22))) (.cse24 (not (= 5 |old(~a16~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (or .cse4 .cse5) .cse2 .cse6) (or (and (= 1 ~a7~0) .cse7 .cse8 .cse9 .cse10) (< |old(~a20~0)| 1) (or .cse5 (not (= 1 |old(~a7~0)|)))) (or .cse11 .cse12 (or (not .cse4) .cse13 .cse14 .cse15 .cse16 .cse17 .cse18)) (or .cse14 .cse0 .cse19 .cse18 .cse11 .cse20 .cse21 .cse6 .cse22) (or .cse4 .cse5 (and .cse23 .cse7 .cse10)) (or (and (= ~a7~0 0) (= ~a8~0 15) .cse12) .cse11 (and (or .cse13 .cse14 .cse16 .cse17 .cse24 .cse18) (or .cse13 .cse14 .cse16 .cse24 .cse18 .cse22))) (or .cse4 (and .cse8 .cse10 .cse23 .cse7 .cse9) .cse25 .cse1) (or .cse4 .cse14 .cse0 .cse19 .cse18 .cse21 .cse11 .cse20 .cse26 .cse22) (or .cse4 .cse13 .cse14 .cse12 .cse18 .cse1 .cse11 .cse15 .cse16 .cse19) (or (and .cse23 (and .cse7 .cse10 .cse12) .cse8 .cse9) .cse27 .cse19 .cse25 .cse20) (or .cse13 (and (= 1 ~a17~0) (= ~a20~0 1) (= ~a16~0 5)) .cse16 .cse27 .cse24))))) [2018-12-09 13:24:38,574 INFO L448 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2018-12-09 13:24:38,574 INFO L448 ceAbstractionStarter]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,574 INFO L448 ceAbstractionStarter]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,574 INFO L448 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,574 INFO L448 ceAbstractionStarter]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,574 INFO L448 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2018-12-09 13:24:38,574 INFO L448 ceAbstractionStarter]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,574 INFO L448 ceAbstractionStarter]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,574 INFO L448 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2018-12-09 13:24:38,574 INFO L448 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2018-12-09 13:24:38,574 INFO L448 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2018-12-09 13:24:38,574 INFO L448 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2018-12-09 13:24:38,574 INFO L448 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2018-12-09 13:24:38,574 INFO L448 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2018-12-09 13:24:38,574 INFO L448 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2018-12-09 13:24:38,574 INFO L448 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2018-12-09 13:24:38,574 INFO L448 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2018-12-09 13:24:38,574 INFO L448 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2018-12-09 13:24:38,574 INFO L448 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2018-12-09 13:24:38,575 INFO L448 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2018-12-09 13:24:38,575 INFO L448 ceAbstractionStarter]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,575 INFO L448 ceAbstractionStarter]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,575 INFO L448 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,575 INFO L448 ceAbstractionStarter]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,575 INFO L448 ceAbstractionStarter]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,575 INFO L448 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2018-12-09 13:24:38,575 INFO L448 ceAbstractionStarter]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,575 INFO L448 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2018-12-09 13:24:38,575 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2018-12-09 13:24:38,575 INFO L448 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2018-12-09 13:24:38,575 INFO L448 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2018-12-09 13:24:38,575 INFO L448 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2018-12-09 13:24:38,575 INFO L448 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2018-12-09 13:24:38,575 INFO L448 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2018-12-09 13:24:38,575 INFO L448 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2018-12-09 13:24:38,575 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2018-12-09 13:24:38,575 INFO L448 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2018-12-09 13:24:38,575 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2018-12-09 13:24:38,575 INFO L448 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2018-12-09 13:24:38,575 INFO L448 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2018-12-09 13:24:38,575 INFO L448 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2018-12-09 13:24:38,576 INFO L448 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,576 INFO L448 ceAbstractionStarter]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,576 INFO L448 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,576 INFO L448 ceAbstractionStarter]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,576 INFO L448 ceAbstractionStarter]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,576 INFO L448 ceAbstractionStarter]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 13:24:38,576 INFO L448 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2018-12-09 13:24:38,576 INFO L448 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2018-12-09 13:24:38,576 INFO L448 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2018-12-09 13:24:38,576 INFO L448 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2018-12-09 13:24:38,576 INFO L448 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2018-12-09 13:24:38,576 INFO L448 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2018-12-09 13:24:38,576 INFO L448 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2018-12-09 13:24:38,576 INFO L448 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2018-12-09 13:24:38,576 INFO L448 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2018-12-09 13:24:38,576 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2018-12-09 13:24:38,576 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 13:24:38,576 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a7~0 0) (= ~a8~0 15) (= ~a12~0 8) (= ~a21~0 1) (= ~a20~0 1) (= ~a16~0 5) (= 1 ~a17~0)) [2018-12-09 13:24:38,576 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 13:24:38,576 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 13:24:38,576 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= 0 |old(~a7~0)|)) (not (= 1 |old(~a21~0)|)) (not (= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (not (= 5 |old(~a16~0)|)) (and (= ~a21~0 1) (= ~a7~0 |old(~a7~0)|) (= |old(~a8~0)| ~a8~0) (= ~a17~0 |old(~a17~0)|) (= ~a20~0 1) (= ~a16~0 5)) (not (= 8 ~a12~0)) (not (= 1 |old(~a17~0)|))) [2018-12-09 13:24:38,577 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2018-12-09 13:24:38,577 INFO L444 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: (let ((.cse9 (not (= ~a16~0 0))) (.cse11 (not (= main_~input~0 0))) (.cse12 (not (= ~a8~0 0))) (.cse0 (or (not (= 1 ~a20~0)) (not (= ~a20~0 ~a7~0)))) (.cse13 (= ~a21~0 1)) (.cse10 (= ~a20~0 1)) (.cse14 (= 1 ~a17~0))) (let ((.cse7 (and .cse9 .cse11 .cse12 .cse0 (= ~a12~0 8) .cse13 .cse10 .cse14)) (.cse1 (<= ~a17~0 0)) (.cse8 (<= ~a8~0 14)) (.cse6 (= ~a7~0 |old(~a7~0)|)) (.cse4 (not (= ~a16~0 6))) (.cse2 (not (= ~a8~0 13))) (.cse5 (<= ~a20~0 0)) (.cse3 (<= ~a8~0 13))) (or (not (= 1 |old(~a21~0)|)) (and .cse0 .cse1 .cse2) (not (= 8 ~a12~0)) (not (= 1 |old(~a20~0)|)) (and .cse3 .cse4 .cse5) (not (= 5 |old(~a16~0)|)) (and .cse6 (= ~a8~0 15) .cse7 (= ~a16~0 5)) (not (= 0 |old(~a7~0)|)) (and .cse7 .cse8) (not (= 1 |old(~a17~0)|)) (and .cse9 (not .cse10) .cse11 .cse12 .cse13 .cse2 .cse14 .cse4) (not (= 15 |old(~a8~0)|)) (and .cse4 .cse1 .cse8) (and .cse3 .cse6 .cse4) (and .cse9 .cse11 .cse12 .cse13 .cse2 (= ~a17~0 |old(~a17~0)|) .cse5) (and .cse3 (= 1 ~a7~0) (<= 1 ~a20~0))))) [2018-12-09 13:24:38,577 INFO L448 ceAbstractionStarter]: For program point L591-1(line 591) no Hoare annotation was computed. [2018-12-09 13:24:38,577 INFO L448 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2018-12-09 13:24:38,577 INFO L444 ceAbstractionStarter]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse3 (not (= ~a16~0 0))) (.cse5 (not (= ~a8~0 0))) (.cse0 (or (not (= 1 ~a20~0)) (not (= ~a20~0 ~a7~0)))) (.cse4 (= ~a20~0 1)) (.cse7 (= 1 ~a17~0))) (let ((.cse11 (and .cse3 .cse5 .cse0 .cse4 .cse7)) (.cse9 (<= ~a8~0 13)) (.cse8 (not (= ~a16~0 6))) (.cse1 (<= ~a17~0 0)) (.cse12 (<= ~a8~0 14)) (.cse6 (= ~a21~0 1)) (.cse2 (not (= ~a8~0 13))) (.cse10 (<= ~a20~0 0))) (or (not (= 1 |old(~a21~0)|)) (and .cse0 .cse1 .cse2) (not (= 8 ~a12~0)) (and .cse3 (not .cse4) .cse5 .cse6 .cse2 .cse7 .cse8) (not (= 1 |old(~a20~0)|)) (and .cse9 .cse8 .cse10) (not (= 5 |old(~a16~0)|)) (and .cse6 (and (<= ~a8~0 |old(~a8~0)|) (and (= ~a7~0 0) .cse11)) (= ~a16~0 5)) (and .cse12 (and .cse11 .cse6)) (and .cse9 (= ~a7~0 |old(~a7~0)|) .cse8) (and .cse9 (= 1 ~a7~0) (<= 1 ~a20~0)) (not (= 0 |old(~a7~0)|)) (not (= 1 |old(~a17~0)|)) (not (= 15 |old(~a8~0)|)) (and .cse8 .cse1 .cse12) (and (and .cse3 .cse5 .cse6 .cse2 .cse7) .cse10)))) [2018-12-09 13:24:38,577 INFO L448 ceAbstractionStarter]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2018-12-09 13:24:38,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 01:24:38 BoogieIcfgContainer [2018-12-09 13:24:38,586 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 13:24:38,586 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 13:24:38,586 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 13:24:38,587 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 13:24:38,587 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:24:13" (3/4) ... [2018-12-09 13:24:38,589 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 13:24:38,593 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 13:24:38,593 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-12-09 13:24:38,594 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 13:24:38,599 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-09 13:24:38,600 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 13:24:38,617 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((!(1 == \old(a21)) || (((!(1 == a20) || !(a20 == a7)) && a17 <= 0) && !(a8 == 13))) || !(8 == a12)) || ((((((!(a16 == 0) && !(a20 == 1)) && !(a8 == 0)) && a21 == 1) && !(a8 == 13)) && 1 == a17) && !(a16 == 6))) || !(1 == \old(a20))) || ((a8 <= 13 && !(a16 == 6)) && a20 <= 0)) || !(5 == \old(a16))) || ((a21 == 1 && a8 <= \old(a8) && a7 == 0 && (((!(a16 == 0) && !(a8 == 0)) && (!(1 == a20) || !(a20 == a7))) && a20 == 1) && 1 == a17) && a16 == 5)) || (a8 <= 14 && ((((!(a16 == 0) && !(a8 == 0)) && (!(1 == a20) || !(a20 == a7))) && a20 == 1) && 1 == a17) && a21 == 1)) || ((a8 <= 13 && a7 == \old(a7)) && !(a16 == 6))) || ((a8 <= 13 && 1 == a7) && 1 <= a20)) || !(0 == \old(a7))) || !(1 == \old(a17))) || !(15 == \old(a8))) || ((!(a16 == 6) && a17 <= 0) && a8 <= 14)) || (((((!(a16 == 0) && !(a8 == 0)) && a21 == 1) && !(a8 == 13)) && 1 == a17) && a20 <= 0) [2018-12-09 13:24:38,661 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b02acf8e-df17-4965-8763-c235ba17fc6e/bin-2019/utaipan/witness.graphml [2018-12-09 13:24:38,661 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 13:24:38,662 INFO L168 Benchmark]: Toolchain (without parser) took 26106.18 ms. Allocated memory was 1.0 GB in the beginning and 2.6 GB in the end (delta: 1.6 GB). Free memory was 951.7 MB in the beginning and 1.5 GB in the end (delta: -554.8 MB). Peak memory consumption was 1.0 GB. Max. memory is 11.5 GB. [2018-12-09 13:24:38,662 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 13:24:38,662 INFO L168 Benchmark]: CACSL2BoogieTranslator took 328.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -184.7 MB). Peak memory consumption was 38.2 MB. Max. memory is 11.5 GB. [2018-12-09 13:24:38,662 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-09 13:24:38,662 INFO L168 Benchmark]: Boogie Preprocessor took 38.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-09 13:24:38,663 INFO L168 Benchmark]: RCFGBuilder took 623.10 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: 103.9 MB). Peak memory consumption was 103.9 MB. Max. memory is 11.5 GB. [2018-12-09 13:24:38,663 INFO L168 Benchmark]: TraceAbstraction took 25019.44 ms. Allocated memory was 1.2 GB in the beginning and 2.6 GB in the end (delta: 1.4 GB). Free memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: -487.8 MB). Peak memory consumption was 1.4 GB. Max. memory is 11.5 GB. [2018-12-09 13:24:38,663 INFO L168 Benchmark]: Witness Printer took 74.93 ms. Allocated memory is still 2.6 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 62.9 kB). Peak memory consumption was 62.9 kB. Max. memory is 11.5 GB. [2018-12-09 13:24:38,664 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 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 328.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -184.7 MB). Peak memory consumption was 38.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 623.10 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: 103.9 MB). Peak memory consumption was 103.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 25019.44 ms. Allocated memory was 1.2 GB in the beginning and 2.6 GB in the end (delta: 1.4 GB). Free memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: -487.8 MB). Peak memory consumption was 1.4 GB. Max. memory is 11.5 GB. * Witness Printer took 74.93 ms. Allocated memory is still 2.6 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 62.9 kB). Peak memory consumption was 62.9 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 440]: 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: 583]: Loop Invariant Derived loop invariant: ((((((((((((((!(1 == \old(a21)) || (((!(1 == a20) || !(a20 == a7)) && a17 <= 0) && !(a8 == 13))) || !(8 == a12)) || ((((((!(a16 == 0) && !(a20 == 1)) && !(a8 == 0)) && a21 == 1) && !(a8 == 13)) && 1 == a17) && !(a16 == 6))) || !(1 == \old(a20))) || ((a8 <= 13 && !(a16 == 6)) && a20 <= 0)) || !(5 == \old(a16))) || ((a21 == 1 && a8 <= \old(a8) && a7 == 0 && (((!(a16 == 0) && !(a8 == 0)) && (!(1 == a20) || !(a20 == a7))) && a20 == 1) && 1 == a17) && a16 == 5)) || (a8 <= 14 && ((((!(a16 == 0) && !(a8 == 0)) && (!(1 == a20) || !(a20 == a7))) && a20 == 1) && 1 == a17) && a21 == 1)) || ((a8 <= 13 && a7 == \old(a7)) && !(a16 == 6))) || ((a8 <= 13 && 1 == a7) && 1 <= a20)) || !(0 == \old(a7))) || !(1 == \old(a17))) || !(15 == \old(a8))) || ((!(a16 == 6) && a17 <= 0) && a8 <= 14)) || (((((!(a16 == 0) && !(a8 == 0)) && a21 == 1) && !(a8 == 13)) && 1 == a17) && a20 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. SAFE Result, 24.9s OverallTime, 13 OverallIterations, 5 TraceHistogramMax, 16.9s AutomataDifference, 0.0s DeadEndRemovalTime, 2.6s HoareAnnotationTime, HoareTripleCheckerStatistics: 781 SDtfs, 10994 SDslu, 854 SDs, 0 SdLazy, 13357 SolverSat, 2396 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.4s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 2454 GetRequests, 2252 SyntacticMatches, 9 SemanticMatches, 193 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 891 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9122occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.7s AbstIntTime, 9 AbstIntIterations, 5 AbstIntStrong, 0.996846701445112 AbsIntWeakeningRatio, 0.2457293035479632 AbsIntAvgWeakeningVarsNumRemoved, 28.177398160315374 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 13 MinimizatonAttempts, 2671 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 373 PreInvPairs, 563 NumberOfFragments, 1066 HoareAnnotationTreeSize, 373 FomulaSimplifications, 64104 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 15560 FormulaSimplificationTreeSizeReductionInter, 2.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 2668 NumberOfCodeBlocks, 2668 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 3388 ConstructedInterpolants, 0 QuantifiedInterpolants, 1706547 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2185 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 21 InterpolantComputations, 6 PerfectInterpolantSequences, 2043/2327 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...