./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label07_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_1eeaa1bb-610b-42cd-b35d-fa3afcb9f176/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1eeaa1bb-610b-42cd-b35d-fa3afcb9f176/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1eeaa1bb-610b-42cd-b35d-fa3afcb9f176/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1eeaa1bb-610b-42cd-b35d-fa3afcb9f176/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label07_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1eeaa1bb-610b-42cd-b35d-fa3afcb9f176/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1eeaa1bb-610b-42cd-b35d-fa3afcb9f176/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 6f9a2fcb1012f2ff72c6593976c4936a90359f50 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 03:03:50,806 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 03:03:50,807 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 03:03:50,815 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 03:03:50,815 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 03:03:50,816 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 03:03:50,816 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 03:03:50,817 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 03:03:50,818 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 03:03:50,818 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 03:03:50,819 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 03:03:50,819 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 03:03:50,819 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 03:03:50,820 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 03:03:50,820 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 03:03:50,821 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 03:03:50,821 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 03:03:50,822 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 03:03:50,823 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 03:03:50,824 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 03:03:50,824 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 03:03:50,825 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 03:03:50,826 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 03:03:50,826 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 03:03:50,826 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 03:03:50,826 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 03:03:50,827 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 03:03:50,827 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 03:03:50,828 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 03:03:50,828 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 03:03:50,828 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 03:03:50,829 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 03:03:50,829 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 03:03:50,829 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 03:03:50,829 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 03:03:50,830 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 03:03:50,830 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1eeaa1bb-610b-42cd-b35d-fa3afcb9f176/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 03:03:50,837 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 03:03:50,837 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 03:03:50,837 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 03:03:50,837 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 03:03:50,838 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 03:03:50,838 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 03:03:50,838 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 03:03:50,838 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 03:03:50,838 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 03:03:50,838 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 03:03:50,838 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 03:03:50,838 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 03:03:50,838 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 03:03:50,839 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 03:03:50,839 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 03:03:50,839 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 03:03:50,839 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 03:03:50,839 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 03:03:50,839 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 03:03:50,839 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 03:03:50,839 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 03:03:50,839 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 03:03:50,839 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 03:03:50,839 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 03:03:50,839 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 03:03:50,840 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 03:03:50,840 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 03:03:50,840 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 03:03:50,840 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 03:03:50,840 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 03:03:50,840 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 03:03:50,840 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 03:03:50,840 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 03:03:50,840 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 03:03:50,840 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 03:03:50,840 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 03:03:50,840 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_1eeaa1bb-610b-42cd-b35d-fa3afcb9f176/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 -> 6f9a2fcb1012f2ff72c6593976c4936a90359f50 [2018-12-09 03:03:50,862 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 03:03:50,869 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 03:03:50,871 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 03:03:50,872 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 03:03:50,872 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 03:03:50,872 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1eeaa1bb-610b-42cd-b35d-fa3afcb9f176/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem14_label07_true-unreach-call_false-termination.c [2018-12-09 03:03:50,911 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1eeaa1bb-610b-42cd-b35d-fa3afcb9f176/bin-2019/utaipan/data/09c315915/72fe3749ce07472c81116662971ffa25/FLAGcaa849a31 [2018-12-09 03:03:51,334 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 03:03:51,335 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1eeaa1bb-610b-42cd-b35d-fa3afcb9f176/sv-benchmarks/c/eca-rers2012/Problem14_label07_true-unreach-call_false-termination.c [2018-12-09 03:03:51,342 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1eeaa1bb-610b-42cd-b35d-fa3afcb9f176/bin-2019/utaipan/data/09c315915/72fe3749ce07472c81116662971ffa25/FLAGcaa849a31 [2018-12-09 03:03:51,351 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1eeaa1bb-610b-42cd-b35d-fa3afcb9f176/bin-2019/utaipan/data/09c315915/72fe3749ce07472c81116662971ffa25 [2018-12-09 03:03:51,353 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 03:03:51,353 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 03:03:51,354 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 03:03:51,354 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 03:03:51,356 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 03:03:51,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:03:51" (1/1) ... [2018-12-09 03:03:51,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c7a2c36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:03:51, skipping insertion in model container [2018-12-09 03:03:51,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:03:51" (1/1) ... [2018-12-09 03:03:51,363 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 03:03:51,391 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 03:03:51,588 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 03:03:51,591 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 03:03:51,691 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 03:03:51,701 INFO L195 MainTranslator]: Completed translation [2018-12-09 03:03:51,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:03:51 WrapperNode [2018-12-09 03:03:51,701 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 03:03:51,702 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 03:03:51,702 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 03:03:51,702 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 03:03:51,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:03:51" (1/1) ... [2018-12-09 03:03:51,720 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:03:51" (1/1) ... [2018-12-09 03:03:51,727 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 03:03:51,727 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 03:03:51,727 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 03:03:51,727 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 03:03:51,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:03:51" (1/1) ... [2018-12-09 03:03:51,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:03:51" (1/1) ... [2018-12-09 03:03:51,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:03:51" (1/1) ... [2018-12-09 03:03:51,739 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:03:51" (1/1) ... [2018-12-09 03:03:51,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:03:51" (1/1) ... [2018-12-09 03:03:51,773 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:03:51" (1/1) ... [2018-12-09 03:03:51,778 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:03:51" (1/1) ... [2018-12-09 03:03:51,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 03:03:51,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 03:03:51,783 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 03:03:51,783 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 03:03:51,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:03:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1eeaa1bb-610b-42cd-b35d-fa3afcb9f176/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 03:03:51,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 03:03:51,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 03:03:51,818 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-12-09 03:03:51,818 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-12-09 03:03:51,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 03:03:51,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 03:03:51,818 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 03:03:51,818 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 03:03:52,503 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 03:03:52,503 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-09 03:03:52,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:03:52 BoogieIcfgContainer [2018-12-09 03:03:52,503 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 03:03:52,504 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 03:03:52,504 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 03:03:52,506 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 03:03:52,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:03:51" (1/3) ... [2018-12-09 03:03:52,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dd6bbc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:03:52, skipping insertion in model container [2018-12-09 03:03:52,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:03:51" (2/3) ... [2018-12-09 03:03:52,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dd6bbc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:03:52, skipping insertion in model container [2018-12-09 03:03:52,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:03:52" (3/3) ... [2018-12-09 03:03:52,508 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label07_true-unreach-call_false-termination.c [2018-12-09 03:03:52,514 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 03:03:52,519 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 03:03:52,529 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 03:03:52,551 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 03:03:52,551 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 03:03:52,551 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 03:03:52,551 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 03:03:52,551 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 03:03:52,551 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 03:03:52,551 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 03:03:52,551 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 03:03:52,566 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2018-12-09 03:03:52,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-12-09 03:03:52,571 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 03:03:52,572 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] [2018-12-09 03:03:52,573 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 03:03:52,577 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:03:52,577 INFO L82 PathProgramCache]: Analyzing trace with hash 844393866, now seen corresponding path program 1 times [2018-12-09 03:03:52,578 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 03:03:52,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:03:52,609 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:03:52,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:03:52,609 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 03:03:52,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:03:52,742 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 03:03:52,743 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 03:03:52,744 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 03:03:52,744 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 03:03:52,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 03:03:52,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 03:03:52,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 03:03:52,757 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 4 states. [2018-12-09 03:03:53,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 03:03:53,667 INFO L93 Difference]: Finished difference Result 890 states and 1606 transitions. [2018-12-09 03:03:53,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 03:03:53,668 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2018-12-09 03:03:53,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 03:03:53,678 INFO L225 Difference]: With dead ends: 890 [2018-12-09 03:03:53,678 INFO L226 Difference]: Without dead ends: 554 [2018-12-09 03:03:53,682 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 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 03:03:53,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2018-12-09 03:03:53,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 372. [2018-12-09 03:03:53,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2018-12-09 03:03:53,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 524 transitions. [2018-12-09 03:03:53,721 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 524 transitions. Word has length 53 [2018-12-09 03:03:53,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 03:03:53,721 INFO L480 AbstractCegarLoop]: Abstraction has 372 states and 524 transitions. [2018-12-09 03:03:53,721 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 03:03:53,721 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 524 transitions. [2018-12-09 03:03:53,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-12-09 03:03:53,724 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 03:03:53,724 INFO L402 BasicCegarLoop]: trace histogram [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, 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] [2018-12-09 03:03:53,725 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 03:03:53,725 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:03:53,725 INFO L82 PathProgramCache]: Analyzing trace with hash -678591331, now seen corresponding path program 1 times [2018-12-09 03:03:53,725 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 03:03:53,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:03:53,726 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:03:53,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:03:53,726 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 03:03:53,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:03:53,824 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 03:03:53,824 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 03:03:53,824 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 03:03:53,824 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 03:03:53,825 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 03:03:53,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 03:03:53,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 03:03:53,825 INFO L87 Difference]: Start difference. First operand 372 states and 524 transitions. Second operand 4 states. [2018-12-09 03:03:54,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 03:03:54,446 INFO L93 Difference]: Finished difference Result 1466 states and 2090 transitions. [2018-12-09 03:03:54,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 03:03:54,446 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 136 [2018-12-09 03:03:54,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 03:03:54,449 INFO L225 Difference]: With dead ends: 1466 [2018-12-09 03:03:54,449 INFO L226 Difference]: Without dead ends: 736 [2018-12-09 03:03:54,451 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 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 03:03:54,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2018-12-09 03:03:54,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 554. [2018-12-09 03:03:54,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2018-12-09 03:03:54,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 808 transitions. [2018-12-09 03:03:54,465 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 808 transitions. Word has length 136 [2018-12-09 03:03:54,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 03:03:54,466 INFO L480 AbstractCegarLoop]: Abstraction has 554 states and 808 transitions. [2018-12-09 03:03:54,466 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 03:03:54,466 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 808 transitions. [2018-12-09 03:03:54,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2018-12-09 03:03:54,468 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 03:03:54,468 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, 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, 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] [2018-12-09 03:03:54,469 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 03:03:54,469 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:03:54,469 INFO L82 PathProgramCache]: Analyzing trace with hash 1936926174, now seen corresponding path program 1 times [2018-12-09 03:03:54,469 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 03:03:54,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:03:54,470 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:03:54,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:03:54,470 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 03:03:54,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:03:54,548 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2018-12-09 03:03:54,548 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 03:03:54,548 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 03:03:54,548 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 03:03:54,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 03:03:54,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 03:03:54,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 03:03:54,549 INFO L87 Difference]: Start difference. First operand 554 states and 808 transitions. Second operand 4 states. [2018-12-09 03:03:55,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 03:03:55,241 INFO L93 Difference]: Finished difference Result 2194 states and 3267 transitions. [2018-12-09 03:03:55,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 03:03:55,241 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 221 [2018-12-09 03:03:55,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 03:03:55,248 INFO L225 Difference]: With dead ends: 2194 [2018-12-09 03:03:55,248 INFO L226 Difference]: Without dead ends: 1646 [2018-12-09 03:03:55,250 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 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 03:03:55,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2018-12-09 03:03:55,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1646. [2018-12-09 03:03:55,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1646 states. [2018-12-09 03:03:55,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 2269 transitions. [2018-12-09 03:03:55,292 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 2269 transitions. Word has length 221 [2018-12-09 03:03:55,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 03:03:55,293 INFO L480 AbstractCegarLoop]: Abstraction has 1646 states and 2269 transitions. [2018-12-09 03:03:55,293 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 03:03:55,293 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 2269 transitions. [2018-12-09 03:03:55,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2018-12-09 03:03:55,299 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 03:03:55,299 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, 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, 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, 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] [2018-12-09 03:03:55,299 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 03:03:55,300 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:03:55,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1963321077, now seen corresponding path program 1 times [2018-12-09 03:03:55,300 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 03:03:55,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:03:55,301 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:03:55,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:03:55,301 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 03:03:55,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:03:55,580 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 92 proven. 108 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-09 03:03:55,581 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 03:03:55,581 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 03:03:55,582 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 317 with the following transitions: [2018-12-09 03:03:55,583 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-09 03:03:55,613 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 03:03:55,614 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 03:03:57,586 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 03:03:57,587 INFO L272 AbstractInterpreter]: Visited 156 different actions 156 times. Never merged. Never widened. Performed 1514 root evaluator evaluations with a maximum evaluation depth of 22. Performed 1514 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Never found a fixpoint. Largest state had 24 variables. [2018-12-09 03:03:57,598 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:03:57,598 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 03:03:59,338 INFO L227 lantSequenceWeakener]: Weakened 307 states. On average, predicates are now at 77.8% of their original sizes. [2018-12-09 03:03:59,338 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 03:03:59,370 INFO L418 sIntCurrentIteration]: We unified 315 AI predicates to 315 [2018-12-09 03:03:59,370 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 03:03:59,371 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 03:03:59,371 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2018-12-09 03:03:59,371 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 03:03:59,371 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 03:03:59,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 03:03:59,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-09 03:03:59,372 INFO L87 Difference]: Start difference. First operand 1646 states and 2269 transitions. Second operand 6 states. [2018-12-09 03:04:03,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 03:04:03,361 INFO L93 Difference]: Finished difference Result 3469 states and 4758 transitions. [2018-12-09 03:04:03,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 03:04:03,361 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 316 [2018-12-09 03:04:03,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 03:04:03,366 INFO L225 Difference]: With dead ends: 3469 [2018-12-09 03:04:03,366 INFO L226 Difference]: Without dead ends: 1829 [2018-12-09 03:04:03,367 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 316 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-09 03:04:03,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1829 states. [2018-12-09 03:04:03,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1829 to 1828. [2018-12-09 03:04:03,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1828 states. [2018-12-09 03:04:03,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1828 states to 1828 states and 2459 transitions. [2018-12-09 03:04:03,393 INFO L78 Accepts]: Start accepts. Automaton has 1828 states and 2459 transitions. Word has length 316 [2018-12-09 03:04:03,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 03:04:03,394 INFO L480 AbstractCegarLoop]: Abstraction has 1828 states and 2459 transitions. [2018-12-09 03:04:03,394 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 03:04:03,394 INFO L276 IsEmpty]: Start isEmpty. Operand 1828 states and 2459 transitions. [2018-12-09 03:04:03,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2018-12-09 03:04:03,398 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 03:04:03,398 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, 4, 4, 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, 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, 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] [2018-12-09 03:04:03,398 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 03:04:03,399 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:04:03,399 INFO L82 PathProgramCache]: Analyzing trace with hash -496552707, now seen corresponding path program 1 times [2018-12-09 03:04:03,399 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 03:04:03,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:04:03,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:04:03,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:04:03,400 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 03:04:03,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:04:03,837 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 224 proven. 190 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-09 03:04:03,838 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 03:04:03,838 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 03:04:03,838 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 401 with the following transitions: [2018-12-09 03:04:03,838 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [554], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-09 03:04:03,842 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 03:04:03,842 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 03:04:07,023 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 03:04:07,023 INFO L272 AbstractInterpreter]: Visited 160 different actions 313 times. Merged at 3 different actions 3 times. Never widened. Performed 3148 root evaluator evaluations with a maximum evaluation depth of 22. Performed 3148 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-12-09 03:04:07,027 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:04:07,027 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 03:04:08,640 INFO L227 lantSequenceWeakener]: Weakened 397 states. On average, predicates are now at 77.72% of their original sizes. [2018-12-09 03:04:08,640 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 03:04:08,688 INFO L418 sIntCurrentIteration]: We unified 399 AI predicates to 399 [2018-12-09 03:04:08,688 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 03:04:08,688 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 03:04:08,688 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 20 [2018-12-09 03:04:08,688 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 03:04:08,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 03:04:08,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 03:04:08,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-09 03:04:08,689 INFO L87 Difference]: Start difference. First operand 1828 states and 2459 transitions. Second operand 10 states. [2018-12-09 03:04:36,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 03:04:36,289 INFO L93 Difference]: Finished difference Result 3866 states and 5190 transitions. [2018-12-09 03:04:36,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-09 03:04:36,290 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 400 [2018-12-09 03:04:36,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 03:04:36,293 INFO L225 Difference]: With dead ends: 3866 [2018-12-09 03:04:36,293 INFO L226 Difference]: Without dead ends: 2011 [2018-12-09 03:04:36,295 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 408 GetRequests, 391 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 03:04:36,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2011 states. [2018-12-09 03:04:36,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2011 to 2010. [2018-12-09 03:04:36,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2010 states. [2018-12-09 03:04:36,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2010 states to 2010 states and 2652 transitions. [2018-12-09 03:04:36,320 INFO L78 Accepts]: Start accepts. Automaton has 2010 states and 2652 transitions. Word has length 400 [2018-12-09 03:04:36,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 03:04:36,320 INFO L480 AbstractCegarLoop]: Abstraction has 2010 states and 2652 transitions. [2018-12-09 03:04:36,320 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 03:04:36,321 INFO L276 IsEmpty]: Start isEmpty. Operand 2010 states and 2652 transitions. [2018-12-09 03:04:36,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 500 [2018-12-09 03:04:36,326 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 03:04:36,327 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 3, 3, 3, 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 03:04:36,327 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 03:04:36,327 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:04:36,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1415948862, now seen corresponding path program 1 times [2018-12-09 03:04:36,327 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 03:04:36,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:04:36,328 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:04:36,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:04:36,328 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 03:04:36,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:04:36,777 INFO L134 CoverageAnalysis]: Checked inductivity of 735 backedges. 377 proven. 250 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2018-12-09 03:04:36,777 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 03:04:36,777 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 03:04:36,777 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 500 with the following transitions: [2018-12-09 03:04:36,778 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [510], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [659], [663], [666], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-09 03:04:36,780 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 03:04:36,781 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 03:04:39,652 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 03:04:39,652 INFO L272 AbstractInterpreter]: Visited 161 different actions 316 times. Merged at 4 different actions 4 times. Never widened. Performed 3130 root evaluator evaluations with a maximum evaluation depth of 22. Performed 3130 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-12-09 03:04:39,653 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:04:39,654 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 03:04:41,239 INFO L227 lantSequenceWeakener]: Weakened 496 states. On average, predicates are now at 77.65% of their original sizes. [2018-12-09 03:04:41,240 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 03:04:41,279 INFO L418 sIntCurrentIteration]: We unified 498 AI predicates to 498 [2018-12-09 03:04:41,279 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 03:04:41,279 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 03:04:41,280 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 22 [2018-12-09 03:04:41,280 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 03:04:41,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 03:04:41,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 03:04:41,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-09 03:04:41,280 INFO L87 Difference]: Start difference. First operand 2010 states and 2652 transitions. Second operand 10 states. [2018-12-09 03:04:51,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 03:04:51,156 INFO L93 Difference]: Finished difference Result 3836 states and 5120 transitions. [2018-12-09 03:04:51,156 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-09 03:04:51,156 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 499 [2018-12-09 03:04:51,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 03:04:51,161 INFO L225 Difference]: With dead ends: 3836 [2018-12-09 03:04:51,161 INFO L226 Difference]: Without dead ends: 2014 [2018-12-09 03:04:51,163 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 506 GetRequests, 490 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 03:04:51,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2014 states. [2018-12-09 03:04:51,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2014 to 2012. [2018-12-09 03:04:51,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2012 states. [2018-12-09 03:04:51,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2012 states to 2012 states and 2640 transitions. [2018-12-09 03:04:51,187 INFO L78 Accepts]: Start accepts. Automaton has 2012 states and 2640 transitions. Word has length 499 [2018-12-09 03:04:51,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 03:04:51,188 INFO L480 AbstractCegarLoop]: Abstraction has 2012 states and 2640 transitions. [2018-12-09 03:04:51,188 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 03:04:51,188 INFO L276 IsEmpty]: Start isEmpty. Operand 2012 states and 2640 transitions. [2018-12-09 03:04:51,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2018-12-09 03:04:51,191 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 03:04:51,191 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 3, 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] [2018-12-09 03:04:51,191 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 03:04:51,191 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:04:51,191 INFO L82 PathProgramCache]: Analyzing trace with hash -602196651, now seen corresponding path program 1 times [2018-12-09 03:04:51,192 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 03:04:51,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:04:51,192 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:04:51,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:04:51,192 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 03:04:51,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:04:51,419 INFO L134 CoverageAnalysis]: Checked inductivity of 749 backedges. 328 proven. 285 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2018-12-09 03:04:51,419 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 03:04:51,419 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 03:04:51,419 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 503 with the following transitions: [2018-12-09 03:04:51,419 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-09 03:04:51,422 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 03:04:51,422 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 03:04:54,959 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 03:04:54,959 INFO L272 AbstractInterpreter]: Visited 161 different actions 476 times. Merged at 6 different actions 13 times. Never widened. Performed 4874 root evaluator evaluations with a maximum evaluation depth of 21. Performed 4874 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-12-09 03:04:54,961 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:04:54,961 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 03:04:55,608 INFO L227 lantSequenceWeakener]: Weakened 499 states. On average, predicates are now at 80.31% of their original sizes. [2018-12-09 03:04:55,608 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 03:04:55,649 INFO L418 sIntCurrentIteration]: We unified 501 AI predicates to 501 [2018-12-09 03:04:55,649 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 03:04:55,649 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 03:04:55,649 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2018-12-09 03:04:55,649 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 03:04:55,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 03:04:55,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 03:04:55,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-09 03:04:55,650 INFO L87 Difference]: Start difference. First operand 2012 states and 2640 transitions. Second operand 9 states. [2018-12-09 03:05:06,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 03:05:06,706 INFO L93 Difference]: Finished difference Result 4407 states and 6011 transitions. [2018-12-09 03:05:06,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-09 03:05:06,706 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 502 [2018-12-09 03:05:06,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 03:05:06,710 INFO L225 Difference]: With dead ends: 4407 [2018-12-09 03:05:06,710 INFO L226 Difference]: Without dead ends: 2767 [2018-12-09 03:05:06,712 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 508 GetRequests, 494 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 03:05:06,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2767 states. [2018-12-09 03:05:06,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2767 to 2754. [2018-12-09 03:05:06,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2754 states. [2018-12-09 03:05:06,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2754 states to 2754 states and 3581 transitions. [2018-12-09 03:05:06,740 INFO L78 Accepts]: Start accepts. Automaton has 2754 states and 3581 transitions. Word has length 502 [2018-12-09 03:05:06,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 03:05:06,741 INFO L480 AbstractCegarLoop]: Abstraction has 2754 states and 3581 transitions. [2018-12-09 03:05:06,741 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 03:05:06,741 INFO L276 IsEmpty]: Start isEmpty. Operand 2754 states and 3581 transitions. [2018-12-09 03:05:06,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608 [2018-12-09 03:05:06,745 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 03:05:06,745 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2018-12-09 03:05:06,746 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 03:05:06,746 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:05:06,746 INFO L82 PathProgramCache]: Analyzing trace with hash 843801242, now seen corresponding path program 1 times [2018-12-09 03:05:06,746 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 03:05:06,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:05:06,746 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:05:06,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:05:06,747 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 03:05:06,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:05:07,344 INFO L134 CoverageAnalysis]: Checked inductivity of 1177 backedges. 541 proven. 458 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2018-12-09 03:05:07,344 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 03:05:07,345 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 03:05:07,345 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 608 with the following transitions: [2018-12-09 03:05:07,345 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [506], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [666], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-09 03:05:07,347 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 03:05:07,347 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 03:05:14,762 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 03:05:14,762 INFO L272 AbstractInterpreter]: Visited 163 different actions 643 times. Merged at 7 different actions 24 times. Never widened. Performed 6821 root evaluator evaluations with a maximum evaluation depth of 22. Performed 6821 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 8 fixpoints after 4 different actions. Largest state had 24 variables. [2018-12-09 03:05:14,765 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:05:14,765 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 03:05:14,765 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 03:05:14,766 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1eeaa1bb-610b-42cd-b35d-fa3afcb9f176/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 03:05:14,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:05:14,775 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 03:05:14,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:05:14,878 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 03:05:15,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1177 backedges. 881 proven. 2 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2018-12-09 03:05:15,160 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 03:05:15,517 INFO L134 CoverageAnalysis]: Checked inductivity of 1177 backedges. 537 proven. 112 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2018-12-09 03:05:15,532 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 03:05:15,532 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 19 [2018-12-09 03:05:15,533 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 03:05:15,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-12-09 03:05:15,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-12-09 03:05:15,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2018-12-09 03:05:15,534 INFO L87 Difference]: Start difference. First operand 2754 states and 3581 transitions. Second operand 17 states. [2018-12-09 03:05:17,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 03:05:17,329 INFO L93 Difference]: Finished difference Result 5514 states and 7395 transitions. [2018-12-09 03:05:17,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-12-09 03:05:17,329 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 607 [2018-12-09 03:05:17,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 03:05:17,335 INFO L225 Difference]: With dead ends: 5514 [2018-12-09 03:05:17,336 INFO L226 Difference]: Without dead ends: 2947 [2018-12-09 03:05:17,338 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1262 GetRequests, 1220 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=430, Invalid=1376, Unknown=0, NotChecked=0, Total=1806 [2018-12-09 03:05:17,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2947 states. [2018-12-09 03:05:17,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2947 to 2432. [2018-12-09 03:05:17,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2432 states. [2018-12-09 03:05:17,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2432 states to 2432 states and 2702 transitions. [2018-12-09 03:05:17,373 INFO L78 Accepts]: Start accepts. Automaton has 2432 states and 2702 transitions. Word has length 607 [2018-12-09 03:05:17,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 03:05:17,373 INFO L480 AbstractCegarLoop]: Abstraction has 2432 states and 2702 transitions. [2018-12-09 03:05:17,373 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-12-09 03:05:17,373 INFO L276 IsEmpty]: Start isEmpty. Operand 2432 states and 2702 transitions. [2018-12-09 03:05:17,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 682 [2018-12-09 03:05:17,377 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 03:05:17,378 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 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, 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] [2018-12-09 03:05:17,378 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 03:05:17,378 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:05:17,378 INFO L82 PathProgramCache]: Analyzing trace with hash -1294933294, now seen corresponding path program 1 times [2018-12-09 03:05:17,378 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 03:05:17,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:05:17,379 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:05:17,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:05:17,379 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 03:05:17,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:05:18,116 INFO L134 CoverageAnalysis]: Checked inductivity of 1244 backedges. 467 proven. 513 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2018-12-09 03:05:18,117 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 03:05:18,117 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 03:05:18,117 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 682 with the following transitions: [2018-12-09 03:05:18,117 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-09 03:05:18,119 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 03:05:18,119 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 03:05:22,200 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 03:05:22,201 INFO L272 AbstractInterpreter]: Visited 191 different actions 761 times. Merged at 9 different actions 30 times. Widened at 1 different actions 1 times. Performed 8322 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8322 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 8 fixpoints after 4 different actions. Largest state had 24 variables. [2018-12-09 03:05:22,202 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:05:22,203 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 03:05:22,203 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 03:05:22,203 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1eeaa1bb-610b-42cd-b35d-fa3afcb9f176/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 03:05:22,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:05:22,209 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 03:05:22,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:05:22,301 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 03:05:22,512 INFO L134 CoverageAnalysis]: Checked inductivity of 1244 backedges. 963 proven. 2 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2018-12-09 03:05:22,512 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 03:05:22,902 INFO L134 CoverageAnalysis]: Checked inductivity of 1244 backedges. 466 proven. 228 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2018-12-09 03:05:22,917 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 03:05:22,918 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 6, 6] total 20 [2018-12-09 03:05:22,918 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 03:05:22,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-12-09 03:05:22,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-12-09 03:05:22,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2018-12-09 03:05:22,919 INFO L87 Difference]: Start difference. First operand 2432 states and 2702 transitions. Second operand 17 states. [2018-12-09 03:05:25,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 03:05:25,383 INFO L93 Difference]: Finished difference Result 4956 states and 5778 transitions. [2018-12-09 03:05:25,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-12-09 03:05:25,383 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 681 [2018-12-09 03:05:25,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 03:05:25,389 INFO L225 Difference]: With dead ends: 4956 [2018-12-09 03:05:25,389 INFO L226 Difference]: Without dead ends: 2896 [2018-12-09 03:05:25,391 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1434 GetRequests, 1382 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 702 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=595, Invalid=2267, Unknown=0, NotChecked=0, Total=2862 [2018-12-09 03:05:25,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2896 states. [2018-12-09 03:05:25,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2896 to 2824. [2018-12-09 03:05:25,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2824 states. [2018-12-09 03:05:25,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2824 states to 2824 states and 3157 transitions. [2018-12-09 03:05:25,427 INFO L78 Accepts]: Start accepts. Automaton has 2824 states and 3157 transitions. Word has length 681 [2018-12-09 03:05:25,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 03:05:25,428 INFO L480 AbstractCegarLoop]: Abstraction has 2824 states and 3157 transitions. [2018-12-09 03:05:25,428 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-12-09 03:05:25,428 INFO L276 IsEmpty]: Start isEmpty. Operand 2824 states and 3157 transitions. [2018-12-09 03:05:25,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 799 [2018-12-09 03:05:25,433 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 03:05:25,433 INFO L402 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-09 03:05:25,433 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 03:05:25,433 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:05:25,433 INFO L82 PathProgramCache]: Analyzing trace with hash 2003215569, now seen corresponding path program 1 times [2018-12-09 03:05:25,433 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 03:05:25,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:05:25,434 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:05:25,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:05:25,434 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 03:05:25,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:05:25,763 INFO L134 CoverageAnalysis]: Checked inductivity of 1822 backedges. 640 proven. 228 refuted. 0 times theorem prover too weak. 954 trivial. 0 not checked. [2018-12-09 03:05:25,764 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 03:05:25,764 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 03:05:25,764 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 799 with the following transitions: [2018-12-09 03:05:25,764 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-09 03:05:25,765 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 03:05:25,765 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 03:05:29,856 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 03:05:29,856 INFO L272 AbstractInterpreter]: Visited 192 different actions 771 times. Merged at 10 different actions 36 times. Widened at 1 different actions 2 times. Performed 8491 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8491 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 10 fixpoints after 5 different actions. Largest state had 24 variables. [2018-12-09 03:05:29,858 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:05:29,858 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 03:05:29,858 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 03:05:29,859 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1eeaa1bb-610b-42cd-b35d-fa3afcb9f176/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 03:05:29,864 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:05:29,864 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 03:05:29,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:05:29,949 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 03:05:30,124 INFO L134 CoverageAnalysis]: Checked inductivity of 1822 backedges. 1325 proven. 2 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2018-12-09 03:05:30,124 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 03:05:30,389 INFO L134 CoverageAnalysis]: Checked inductivity of 1822 backedges. 640 proven. 228 refuted. 0 times theorem prover too weak. 954 trivial. 0 not checked. [2018-12-09 03:05:30,404 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 03:05:30,404 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2018-12-09 03:05:30,404 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 03:05:30,405 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 03:05:30,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 03:05:30,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-12-09 03:05:30,405 INFO L87 Difference]: Start difference. First operand 2824 states and 3157 transitions. Second operand 7 states. [2018-12-09 03:05:31,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 03:05:31,230 INFO L93 Difference]: Finished difference Result 6730 states and 8397 transitions. [2018-12-09 03:05:31,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-09 03:05:31,231 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 798 [2018-12-09 03:05:31,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 03:05:31,243 INFO L225 Difference]: With dead ends: 6730 [2018-12-09 03:05:31,244 INFO L226 Difference]: Without dead ends: 4278 [2018-12-09 03:05:31,247 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1612 GetRequests, 1598 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2018-12-09 03:05:31,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4278 states. [2018-12-09 03:05:31,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4278 to 4142. [2018-12-09 03:05:31,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4142 states. [2018-12-09 03:05:31,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4142 states to 4142 states and 4753 transitions. [2018-12-09 03:05:31,313 INFO L78 Accepts]: Start accepts. Automaton has 4142 states and 4753 transitions. Word has length 798 [2018-12-09 03:05:31,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 03:05:31,314 INFO L480 AbstractCegarLoop]: Abstraction has 4142 states and 4753 transitions. [2018-12-09 03:05:31,314 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 03:05:31,314 INFO L276 IsEmpty]: Start isEmpty. Operand 4142 states and 4753 transitions. [2018-12-09 03:05:31,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 925 [2018-12-09 03:05:31,320 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 03:05:31,321 INFO L402 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 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] [2018-12-09 03:05:31,321 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 03:05:31,321 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:05:31,321 INFO L82 PathProgramCache]: Analyzing trace with hash 304342525, now seen corresponding path program 1 times [2018-12-09 03:05:31,321 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 03:05:31,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:05:31,321 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:05:31,322 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:05:31,322 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 03:05:31,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:05:32,441 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 695 proven. 1124 refuted. 0 times theorem prover too weak. 709 trivial. 0 not checked. [2018-12-09 03:05:32,441 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 03:05:32,441 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 03:05:32,442 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 925 with the following transitions: [2018-12-09 03:05:32,442 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [750], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-09 03:05:32,443 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 03:05:32,443 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 03:05:36,544 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 03:05:36,544 INFO L272 AbstractInterpreter]: Visited 192 different actions 770 times. Merged at 10 different actions 35 times. Widened at 1 different actions 2 times. Performed 8447 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8447 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 10 fixpoints after 5 different actions. Largest state had 24 variables. [2018-12-09 03:05:36,545 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:05:36,545 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 03:05:36,546 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 03:05:36,546 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1eeaa1bb-610b-42cd-b35d-fa3afcb9f176/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 03:05:36,552 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:05:36,552 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 03:05:36,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:05:36,649 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 03:05:37,087 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1705 proven. 2 refuted. 0 times theorem prover too weak. 821 trivial. 0 not checked. [2018-12-09 03:05:37,087 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 03:05:37,553 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 823 proven. 228 refuted. 0 times theorem prover too weak. 1477 trivial. 0 not checked. [2018-12-09 03:05:37,568 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 03:05:37,569 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 6, 6] total 20 [2018-12-09 03:05:37,569 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 03:05:37,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-12-09 03:05:37,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-12-09 03:05:37,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2018-12-09 03:05:37,570 INFO L87 Difference]: Start difference. First operand 4142 states and 4753 transitions. Second operand 18 states. [2018-12-09 03:05:40,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 03:05:40,325 INFO L93 Difference]: Finished difference Result 9088 states and 10632 transitions. [2018-12-09 03:05:40,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-12-09 03:05:40,325 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 924 [2018-12-09 03:05:40,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 03:05:40,333 INFO L225 Difference]: With dead ends: 9088 [2018-12-09 03:05:40,333 INFO L226 Difference]: Without dead ends: 5134 [2018-12-09 03:05:40,337 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1936 GetRequests, 1872 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1137 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=808, Invalid=3352, Unknown=0, NotChecked=0, Total=4160 [2018-12-09 03:05:40,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5134 states. [2018-12-09 03:05:40,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5134 to 4904. [2018-12-09 03:05:40,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4904 states. [2018-12-09 03:05:40,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4904 states to 4904 states and 5636 transitions. [2018-12-09 03:05:40,389 INFO L78 Accepts]: Start accepts. Automaton has 4904 states and 5636 transitions. Word has length 924 [2018-12-09 03:05:40,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 03:05:40,389 INFO L480 AbstractCegarLoop]: Abstraction has 4904 states and 5636 transitions. [2018-12-09 03:05:40,389 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-12-09 03:05:40,389 INFO L276 IsEmpty]: Start isEmpty. Operand 4904 states and 5636 transitions. [2018-12-09 03:05:40,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 958 [2018-12-09 03:05:40,396 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 03:05:40,396 INFO L402 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-12-09 03:05:40,396 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 03:05:40,396 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:05:40,396 INFO L82 PathProgramCache]: Analyzing trace with hash 269621054, now seen corresponding path program 1 times [2018-12-09 03:05:40,396 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 03:05:40,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:05:40,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:05:40,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:05:40,397 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 03:05:40,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:05:40,824 INFO L134 CoverageAnalysis]: Checked inductivity of 2593 backedges. 856 proven. 228 refuted. 0 times theorem prover too weak. 1509 trivial. 0 not checked. [2018-12-09 03:05:40,824 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 03:05:40,824 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 03:05:40,824 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 958 with the following transitions: [2018-12-09 03:05:40,824 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [854], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-09 03:05:40,826 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 03:05:40,826 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 03:05:44,924 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 03:05:44,925 INFO L272 AbstractInterpreter]: Visited 193 different actions 775 times. Merged at 10 different actions 36 times. Widened at 1 different actions 1 times. Performed 8503 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8503 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 12 fixpoints after 5 different actions. Largest state had 24 variables. [2018-12-09 03:05:44,926 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:05:44,926 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 03:05:44,926 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 03:05:44,926 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1eeaa1bb-610b-42cd-b35d-fa3afcb9f176/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 03:05:44,932 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:05:44,932 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 03:05:45,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:05:45,027 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 03:05:45,258 INFO L134 CoverageAnalysis]: Checked inductivity of 2593 backedges. 1763 proven. 2 refuted. 0 times theorem prover too weak. 828 trivial. 0 not checked. [2018-12-09 03:05:45,258 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 03:05:45,638 INFO L134 CoverageAnalysis]: Checked inductivity of 2593 backedges. 856 proven. 228 refuted. 0 times theorem prover too weak. 1509 trivial. 0 not checked. [2018-12-09 03:05:45,654 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 03:05:45,655 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2018-12-09 03:05:45,655 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 03:05:45,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 03:05:45,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 03:05:45,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-12-09 03:05:45,655 INFO L87 Difference]: Start difference. First operand 4904 states and 5636 transitions. Second operand 7 states. [2018-12-09 03:05:46,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 03:05:46,180 INFO L93 Difference]: Finished difference Result 9788 states and 11339 transitions. [2018-12-09 03:05:46,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-09 03:05:46,180 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 957 [2018-12-09 03:05:46,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 03:05:46,187 INFO L225 Difference]: With dead ends: 9788 [2018-12-09 03:05:46,188 INFO L226 Difference]: Without dead ends: 5074 [2018-12-09 03:05:46,192 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1930 GetRequests, 1916 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2018-12-09 03:05:46,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5074 states. [2018-12-09 03:05:46,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5074 to 5050. [2018-12-09 03:05:46,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5050 states. [2018-12-09 03:05:46,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5050 states to 5050 states and 5713 transitions. [2018-12-09 03:05:46,241 INFO L78 Accepts]: Start accepts. Automaton has 5050 states and 5713 transitions. Word has length 957 [2018-12-09 03:05:46,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 03:05:46,241 INFO L480 AbstractCegarLoop]: Abstraction has 5050 states and 5713 transitions. [2018-12-09 03:05:46,241 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 03:05:46,241 INFO L276 IsEmpty]: Start isEmpty. Operand 5050 states and 5713 transitions. [2018-12-09 03:05:46,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1052 [2018-12-09 03:05:46,248 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 03:05:46,249 INFO L402 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 03:05:46,249 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 03:05:46,249 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:05:46,249 INFO L82 PathProgramCache]: Analyzing trace with hash -1368623598, now seen corresponding path program 1 times [2018-12-09 03:05:46,249 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 03:05:46,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:05:46,250 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:05:46,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:05:46,250 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 03:05:46,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:05:47,738 INFO L134 CoverageAnalysis]: Checked inductivity of 3189 backedges. 753 proven. 1425 refuted. 0 times theorem prover too weak. 1011 trivial. 0 not checked. [2018-12-09 03:05:47,739 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 03:05:47,739 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 03:05:47,739 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1052 with the following transitions: [2018-12-09 03:05:47,739 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-09 03:05:47,741 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 03:05:47,741 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 03:05:51,828 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 03:05:51,828 INFO L272 AbstractInterpreter]: Visited 194 different actions 776 times. Merged at 9 different actions 33 times. Widened at 1 different actions 1 times. Performed 8589 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8589 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 14 fixpoints after 7 different actions. Largest state had 24 variables. [2018-12-09 03:05:51,829 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:05:51,829 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 03:05:51,829 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 03:05:51,829 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1eeaa1bb-610b-42cd-b35d-fa3afcb9f176/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 03:05:51,835 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:05:51,835 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 03:05:51,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:05:51,958 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 03:05:52,248 INFO L134 CoverageAnalysis]: Checked inductivity of 3189 backedges. 2140 proven. 2 refuted. 0 times theorem prover too weak. 1047 trivial. 0 not checked. [2018-12-09 03:05:52,248 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 03:05:52,845 INFO L134 CoverageAnalysis]: Checked inductivity of 3189 backedges. 756 proven. 477 refuted. 0 times theorem prover too weak. 1956 trivial. 0 not checked. [2018-12-09 03:05:52,860 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 03:05:52,860 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 5, 5] total 20 [2018-12-09 03:05:52,860 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 03:05:52,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-12-09 03:05:52,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-12-09 03:05:52,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2018-12-09 03:05:52,861 INFO L87 Difference]: Start difference. First operand 5050 states and 5713 transitions. Second operand 18 states. [2018-12-09 03:05:55,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 03:05:55,376 INFO L93 Difference]: Finished difference Result 9954 states and 11335 transitions. [2018-12-09 03:05:55,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2018-12-09 03:05:55,377 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 1051 [2018-12-09 03:05:55,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 03:05:55,384 INFO L225 Difference]: With dead ends: 9954 [2018-12-09 03:05:55,384 INFO L226 Difference]: Without dead ends: 5094 [2018-12-09 03:05:55,389 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2180 GetRequests, 2122 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 933 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=704, Invalid=2836, Unknown=0, NotChecked=0, Total=3540 [2018-12-09 03:05:55,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5094 states. [2018-12-09 03:05:55,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5094 to 5052. [2018-12-09 03:05:55,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5052 states. [2018-12-09 03:05:55,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5052 states to 5052 states and 5554 transitions. [2018-12-09 03:05:55,449 INFO L78 Accepts]: Start accepts. Automaton has 5052 states and 5554 transitions. Word has length 1051 [2018-12-09 03:05:55,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 03:05:55,450 INFO L480 AbstractCegarLoop]: Abstraction has 5052 states and 5554 transitions. [2018-12-09 03:05:55,450 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-12-09 03:05:55,450 INFO L276 IsEmpty]: Start isEmpty. Operand 5052 states and 5554 transitions. [2018-12-09 03:05:55,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1133 [2018-12-09 03:05:55,457 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 03:05:55,457 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 03:05:55,457 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 03:05:55,457 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:05:55,458 INFO L82 PathProgramCache]: Analyzing trace with hash 642765001, now seen corresponding path program 1 times [2018-12-09 03:05:55,458 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 03:05:55,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:05:55,458 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:05:55,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:05:55,458 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 03:05:55,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:05:55,968 INFO L134 CoverageAnalysis]: Checked inductivity of 3876 backedges. 1598 proven. 230 refuted. 0 times theorem prover too weak. 2048 trivial. 0 not checked. [2018-12-09 03:05:55,968 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 03:05:55,968 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 03:05:55,968 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1133 with the following transitions: [2018-12-09 03:05:55,969 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [534], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-09 03:05:55,970 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 03:05:55,970 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 03:06:00,045 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 03:06:00,046 INFO L272 AbstractInterpreter]: Visited 195 different actions 779 times. Merged at 11 different actions 32 times. Never widened. Performed 8569 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8569 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 16 fixpoints after 7 different actions. Largest state had 24 variables. [2018-12-09 03:06:00,047 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:06:00,047 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 03:06:00,047 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 03:06:00,047 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1eeaa1bb-610b-42cd-b35d-fa3afcb9f176/bin-2019/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 03:06:00,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:06:00,056 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 03:06:00,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:06:00,174 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 03:06:00,558 INFO L134 CoverageAnalysis]: Checked inductivity of 3876 backedges. 2397 proven. 6 refuted. 0 times theorem prover too weak. 1473 trivial. 0 not checked. [2018-12-09 03:06:00,558 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 03:06:01,116 INFO L134 CoverageAnalysis]: Checked inductivity of 3876 backedges. 1598 proven. 303 refuted. 0 times theorem prover too weak. 1975 trivial. 0 not checked. [2018-12-09 03:06:01,132 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 03:06:01,132 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 15 [2018-12-09 03:06:01,132 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 03:06:01,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 03:06:01,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 03:06:01,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2018-12-09 03:06:01,133 INFO L87 Difference]: Start difference. First operand 5052 states and 5554 transitions. Second operand 9 states. [2018-12-09 03:06:01,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 03:06:01,972 INFO L93 Difference]: Finished difference Result 11404 states and 12686 transitions. [2018-12-09 03:06:01,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-09 03:06:01,972 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1132 [2018-12-09 03:06:01,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 03:06:01,980 INFO L225 Difference]: With dead ends: 11404 [2018-12-09 03:06:01,981 INFO L226 Difference]: Without dead ends: 6542 [2018-12-09 03:06:01,985 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2281 GetRequests, 2262 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=117, Invalid=263, Unknown=0, NotChecked=0, Total=380 [2018-12-09 03:06:01,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6542 states. [2018-12-09 03:06:02,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6542 to 6162. [2018-12-09 03:06:02,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6162 states. [2018-12-09 03:06:02,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6162 states to 6162 states and 6876 transitions. [2018-12-09 03:06:02,044 INFO L78 Accepts]: Start accepts. Automaton has 6162 states and 6876 transitions. Word has length 1132 [2018-12-09 03:06:02,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 03:06:02,044 INFO L480 AbstractCegarLoop]: Abstraction has 6162 states and 6876 transitions. [2018-12-09 03:06:02,044 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 03:06:02,044 INFO L276 IsEmpty]: Start isEmpty. Operand 6162 states and 6876 transitions. [2018-12-09 03:06:02,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1166 [2018-12-09 03:06:02,052 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 03:06:02,052 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 03:06:02,052 INFO L423 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 03:06:02,052 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:06:02,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1666228294, now seen corresponding path program 1 times [2018-12-09 03:06:02,052 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 03:06:02,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:06:02,053 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:06:02,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:06:02,053 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 03:06:02,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:06:04,000 INFO L134 CoverageAnalysis]: Checked inductivity of 4071 backedges. 1172 proven. 1917 refuted. 0 times theorem prover too weak. 982 trivial. 0 not checked. [2018-12-09 03:06:04,000 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 03:06:04,000 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 03:06:04,000 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1166 with the following transitions: [2018-12-09 03:06:04,000 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [666], [667], [671], [675], [679], [683], [686], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-09 03:06:04,002 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 03:06:04,002 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 03:06:11,385 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 03:06:11,385 INFO L272 AbstractInterpreter]: Visited 195 different actions 775 times. Merged at 10 different actions 28 times. Never widened. Performed 8607 root evaluator evaluations with a maximum evaluation depth of 22. Performed 8607 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 16 fixpoints after 7 different actions. Largest state had 24 variables. [2018-12-09 03:06:11,387 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:06:11,387 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 03:06:11,387 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 03:06:11,387 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1eeaa1bb-610b-42cd-b35d-fa3afcb9f176/bin-2019/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 03:06:11,393 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:06:11,393 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 03:06:11,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:06:11,512 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 03:06:11,837 INFO L134 CoverageAnalysis]: Checked inductivity of 4071 backedges. 2002 proven. 2 refuted. 0 times theorem prover too weak. 2067 trivial. 0 not checked. [2018-12-09 03:06:11,837 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 03:06:12,438 INFO L134 CoverageAnalysis]: Checked inductivity of 4071 backedges. 1170 proven. 112 refuted. 0 times theorem prover too weak. 2789 trivial. 0 not checked. [2018-12-09 03:06:12,454 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 03:06:12,455 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 5, 5] total 19 [2018-12-09 03:06:12,455 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 03:06:12,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-12-09 03:06:12,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-12-09 03:06:12,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2018-12-09 03:06:12,456 INFO L87 Difference]: Start difference. First operand 6162 states and 6876 transitions. Second operand 18 states. [2018-12-09 03:06:14,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 03:06:14,822 INFO L93 Difference]: Finished difference Result 12204 states and 13675 transitions. [2018-12-09 03:06:14,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-12-09 03:06:14,822 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 1165 [2018-12-09 03:06:14,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 03:06:14,831 INFO L225 Difference]: With dead ends: 12204 [2018-12-09 03:06:14,831 INFO L226 Difference]: Without dead ends: 6232 [2018-12-09 03:06:14,837 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2408 GetRequests, 2356 SyntacticMatches, 4 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 646 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=496, Invalid=1954, Unknown=0, NotChecked=0, Total=2450 [2018-12-09 03:06:14,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6232 states. [2018-12-09 03:06:14,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6232 to 6172. [2018-12-09 03:06:14,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6172 states. [2018-12-09 03:06:14,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6172 states to 6172 states and 6720 transitions. [2018-12-09 03:06:14,894 INFO L78 Accepts]: Start accepts. Automaton has 6172 states and 6720 transitions. Word has length 1165 [2018-12-09 03:06:14,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 03:06:14,895 INFO L480 AbstractCegarLoop]: Abstraction has 6172 states and 6720 transitions. [2018-12-09 03:06:14,895 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-12-09 03:06:14,895 INFO L276 IsEmpty]: Start isEmpty. Operand 6172 states and 6720 transitions. [2018-12-09 03:06:14,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1284 [2018-12-09 03:06:14,903 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 03:06:14,903 INFO L402 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 03:06:14,903 INFO L423 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 03:06:14,903 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:06:14,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1227148822, now seen corresponding path program 1 times [2018-12-09 03:06:14,904 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 03:06:14,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:06:14,904 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:06:14,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:06:14,904 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 03:06:14,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:06:16,276 INFO L134 CoverageAnalysis]: Checked inductivity of 5076 backedges. 1326 proven. 937 refuted. 0 times theorem prover too weak. 2813 trivial. 0 not checked. [2018-12-09 03:06:16,276 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 03:06:16,276 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 03:06:16,277 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1284 with the following transitions: [2018-12-09 03:06:16,277 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [666], [667], [671], [675], [679], [683], [686], [687], [690], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-09 03:06:16,278 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 03:06:16,278 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 03:06:23,685 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 03:06:23,685 INFO L272 AbstractInterpreter]: Visited 196 different actions 792 times. Merged at 12 different actions 41 times. Widened at 1 different actions 1 times. Performed 8817 root evaluator evaluations with a maximum evaluation depth of 22. Performed 8817 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 17 fixpoints after 6 different actions. Largest state had 24 variables. [2018-12-09 03:06:23,688 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:06:23,688 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 03:06:23,688 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 03:06:23,688 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1eeaa1bb-610b-42cd-b35d-fa3afcb9f176/bin-2019/utaipan/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 03:06:23,694 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:06:23,694 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 03:06:23,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:06:23,819 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 03:06:24,324 INFO L134 CoverageAnalysis]: Checked inductivity of 5076 backedges. 2281 proven. 2 refuted. 0 times theorem prover too weak. 2793 trivial. 0 not checked. [2018-12-09 03:06:24,324 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 03:06:25,259 INFO L134 CoverageAnalysis]: Checked inductivity of 5076 backedges. 1335 proven. 112 refuted. 0 times theorem prover too weak. 3629 trivial. 0 not checked. [2018-12-09 03:06:25,275 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 03:06:25,275 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 19 [2018-12-09 03:06:25,275 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 03:06:25,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-12-09 03:06:25,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-12-09 03:06:25,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2018-12-09 03:06:25,277 INFO L87 Difference]: Start difference. First operand 6172 states and 6720 transitions. Second operand 17 states. [2018-12-09 03:06:27,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 03:06:27,984 INFO L93 Difference]: Finished difference Result 12226 states and 13335 transitions. [2018-12-09 03:06:27,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-12-09 03:06:27,984 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 1283 [2018-12-09 03:06:27,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 03:06:27,993 INFO L225 Difference]: With dead ends: 12226 [2018-12-09 03:06:27,993 INFO L226 Difference]: Without dead ends: 6244 [2018-12-09 03:06:28,000 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2636 GetRequests, 2584 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 652 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=562, Invalid=2194, Unknown=0, NotChecked=0, Total=2756 [2018-12-09 03:06:28,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6244 states. [2018-12-09 03:06:28,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6244 to 6172. [2018-12-09 03:06:28,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6172 states. [2018-12-09 03:06:28,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6172 states to 6172 states and 6703 transitions. [2018-12-09 03:06:28,066 INFO L78 Accepts]: Start accepts. Automaton has 6172 states and 6703 transitions. Word has length 1283 [2018-12-09 03:06:28,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 03:06:28,067 INFO L480 AbstractCegarLoop]: Abstraction has 6172 states and 6703 transitions. [2018-12-09 03:06:28,067 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-12-09 03:06:28,067 INFO L276 IsEmpty]: Start isEmpty. Operand 6172 states and 6703 transitions. [2018-12-09 03:06:28,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1605 [2018-12-09 03:06:28,079 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 03:06:28,079 INFO L402 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-12-09 03:06:28,079 INFO L423 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 03:06:28,079 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:06:28,079 INFO L82 PathProgramCache]: Analyzing trace with hash -560085719, now seen corresponding path program 1 times [2018-12-09 03:06:28,080 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 03:06:28,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:06:28,080 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:06:28,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:06:28,080 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 03:06:28,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:06:28,937 INFO L134 CoverageAnalysis]: Checked inductivity of 7674 backedges. 1895 proven. 2 refuted. 0 times theorem prover too weak. 5777 trivial. 0 not checked. [2018-12-09 03:06:28,937 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 03:06:28,937 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 03:06:28,938 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1605 with the following transitions: [2018-12-09 03:06:28,938 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [662], [663], [667], [671], [675], [679], [683], [686], [687], [690], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [778], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [935], [939], [943], [946], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-09 03:06:28,939 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 03:06:28,939 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 03:06:33,067 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 03:06:33,067 INFO L272 AbstractInterpreter]: Visited 201 different actions 803 times. Merged at 10 different actions 32 times. Widened at 1 different actions 1 times. Performed 8994 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8994 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 19 fixpoints after 11 different actions. Largest state had 24 variables. [2018-12-09 03:06:33,068 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:06:33,069 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 03:06:33,069 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 03:06:33,069 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1eeaa1bb-610b-42cd-b35d-fa3afcb9f176/bin-2019/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 03:06:33,075 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:06:33,076 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 03:06:33,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:06:33,237 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 03:06:33,862 INFO L134 CoverageAnalysis]: Checked inductivity of 7674 backedges. 1895 proven. 2 refuted. 0 times theorem prover too weak. 5777 trivial. 0 not checked. [2018-12-09 03:06:33,862 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 03:06:34,583 INFO L134 CoverageAnalysis]: Checked inductivity of 7674 backedges. 1895 proven. 2 refuted. 0 times theorem prover too weak. 5777 trivial. 0 not checked. [2018-12-09 03:06:34,599 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 03:06:34,599 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 12 [2018-12-09 03:06:34,599 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 03:06:34,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 03:06:34,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 03:06:34,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-12-09 03:06:34,600 INFO L87 Difference]: Start difference. First operand 6172 states and 6703 transitions. Second operand 10 states. [2018-12-09 03:06:35,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 03:06:35,468 INFO L93 Difference]: Finished difference Result 13094 states and 14346 transitions. [2018-12-09 03:06:35,468 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-09 03:06:35,468 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1604 [2018-12-09 03:06:35,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 03:06:35,473 INFO L225 Difference]: With dead ends: 13094 [2018-12-09 03:06:35,473 INFO L226 Difference]: Without dead ends: 4700 [2018-12-09 03:06:35,478 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3232 GetRequests, 3212 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=125, Invalid=255, Unknown=0, NotChecked=0, Total=380 [2018-12-09 03:06:35,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4700 states. [2018-12-09 03:06:35,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4700 to 4294. [2018-12-09 03:06:35,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4294 states. [2018-12-09 03:06:35,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4294 states to 4294 states and 4470 transitions. [2018-12-09 03:06:35,516 INFO L78 Accepts]: Start accepts. Automaton has 4294 states and 4470 transitions. Word has length 1604 [2018-12-09 03:06:35,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 03:06:35,516 INFO L480 AbstractCegarLoop]: Abstraction has 4294 states and 4470 transitions. [2018-12-09 03:06:35,516 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 03:06:35,517 INFO L276 IsEmpty]: Start isEmpty. Operand 4294 states and 4470 transitions. [2018-12-09 03:06:35,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1606 [2018-12-09 03:06:35,527 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 03:06:35,527 INFO L402 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-12-09 03:06:35,527 INFO L423 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 03:06:35,527 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:06:35,528 INFO L82 PathProgramCache]: Analyzing trace with hash 888570278, now seen corresponding path program 1 times [2018-12-09 03:06:35,528 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 03:06:35,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:06:35,528 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:06:35,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:06:35,528 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 03:06:35,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:06:37,230 INFO L134 CoverageAnalysis]: Checked inductivity of 7681 backedges. 1656 proven. 1159 refuted. 0 times theorem prover too weak. 4866 trivial. 0 not checked. [2018-12-09 03:06:37,230 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 03:06:37,230 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 03:06:37,231 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1606 with the following transitions: [2018-12-09 03:06:37,231 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [666], [667], [671], [675], [679], [683], [686], [687], [690], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [778], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [935], [939], [943], [946], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-09 03:06:37,233 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 03:06:37,233 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 03:06:44,719 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 03:06:44,719 INFO L272 AbstractInterpreter]: Visited 201 different actions 806 times. Merged at 12 different actions 35 times. Never widened. Performed 8978 root evaluator evaluations with a maximum evaluation depth of 22. Performed 8978 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 19 fixpoints after 9 different actions. Largest state had 24 variables. [2018-12-09 03:06:44,721 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:06:44,721 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 03:06:44,721 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 03:06:44,721 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1eeaa1bb-610b-42cd-b35d-fa3afcb9f176/bin-2019/utaipan/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 03:06:44,727 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:06:44,727 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 03:06:44,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:06:44,882 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 03:06:45,572 INFO L134 CoverageAnalysis]: Checked inductivity of 7681 backedges. 2894 proven. 2 refuted. 0 times theorem prover too weak. 4785 trivial. 0 not checked. [2018-12-09 03:06:45,572 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 03:06:46,840 INFO L134 CoverageAnalysis]: Checked inductivity of 7681 backedges. 1665 proven. 112 refuted. 0 times theorem prover too weak. 5904 trivial. 0 not checked. [2018-12-09 03:06:46,856 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 03:06:46,857 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 19 [2018-12-09 03:06:46,857 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 03:06:46,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-12-09 03:06:46,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-12-09 03:06:46,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2018-12-09 03:06:46,858 INFO L87 Difference]: Start difference. First operand 4294 states and 4470 transitions. Second operand 17 states. [2018-12-09 03:06:49,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 03:06:49,091 INFO L93 Difference]: Finished difference Result 8600 states and 8956 transitions. [2018-12-09 03:06:49,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-12-09 03:06:49,092 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 1605 [2018-12-09 03:06:49,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 03:06:49,096 INFO L225 Difference]: With dead ends: 8600 [2018-12-09 03:06:49,096 INFO L226 Difference]: Without dead ends: 4312 [2018-12-09 03:06:49,099 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3270 GetRequests, 3224 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=434, Invalid=1728, Unknown=0, NotChecked=0, Total=2162 [2018-12-09 03:06:49,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4312 states. [2018-12-09 03:06:49,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4312 to 4294. [2018-12-09 03:06:49,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4294 states. [2018-12-09 03:06:49,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4294 states to 4294 states and 4454 transitions. [2018-12-09 03:06:49,137 INFO L78 Accepts]: Start accepts. Automaton has 4294 states and 4454 transitions. Word has length 1605 [2018-12-09 03:06:49,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 03:06:49,138 INFO L480 AbstractCegarLoop]: Abstraction has 4294 states and 4454 transitions. [2018-12-09 03:06:49,138 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-12-09 03:06:49,138 INFO L276 IsEmpty]: Start isEmpty. Operand 4294 states and 4454 transitions. [2018-12-09 03:06:49,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1823 [2018-12-09 03:06:49,151 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 03:06:49,151 INFO L402 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 9, 9, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-12-09 03:06:49,151 INFO L423 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 03:06:49,151 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:06:49,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1822319605, now seen corresponding path program 1 times [2018-12-09 03:06:49,151 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 03:06:49,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:06:49,152 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:06:49,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:06:49,152 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 03:06:49,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:06:51,524 INFO L134 CoverageAnalysis]: Checked inductivity of 10353 backedges. 2004 proven. 2489 refuted. 0 times theorem prover too weak. 5860 trivial. 0 not checked. [2018-12-09 03:06:51,524 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 03:06:51,524 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 03:06:51,524 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1823 with the following transitions: [2018-12-09 03:06:51,524 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [634], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [666], [667], [670], [671], [675], [679], [683], [686], [687], [690], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [778], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [935], [939], [943], [946], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-09 03:06:51,526 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 03:06:51,526 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 03:06:58,900 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 03:06:58,900 INFO L272 AbstractInterpreter]: Visited 203 different actions 814 times. Merged at 11 different actions 35 times. Widened at 1 different actions 1 times. Performed 9141 root evaluator evaluations with a maximum evaluation depth of 22. Performed 9141 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 21 fixpoints after 13 different actions. Largest state had 24 variables. [2018-12-09 03:06:58,902 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:06:58,902 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 03:06:58,902 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 03:06:58,902 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1eeaa1bb-610b-42cd-b35d-fa3afcb9f176/bin-2019/utaipan/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 03:06:58,908 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:06:58,908 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 03:06:59,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:06:59,083 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 03:06:59,890 INFO L134 CoverageAnalysis]: Checked inductivity of 10353 backedges. 4409 proven. 6 refuted. 0 times theorem prover too weak. 5938 trivial. 0 not checked. [2018-12-09 03:06:59,890 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 03:07:01,407 INFO L134 CoverageAnalysis]: Checked inductivity of 10353 backedges. 2973 proven. 214 refuted. 0 times theorem prover too weak. 7166 trivial. 0 not checked. [2018-12-09 03:07:01,423 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 03:07:01,423 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5] total 18 [2018-12-09 03:07:01,423 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 03:07:01,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-12-09 03:07:01,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-12-09 03:07:01,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2018-12-09 03:07:01,424 INFO L87 Difference]: Start difference. First operand 4294 states and 4454 transitions. Second operand 16 states. [2018-12-09 03:07:03,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 03:07:03,544 INFO L93 Difference]: Finished difference Result 8571 states and 9025 transitions. [2018-12-09 03:07:03,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-12-09 03:07:03,544 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 1822 [2018-12-09 03:07:03,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 03:07:03,549 INFO L225 Difference]: With dead ends: 8571 [2018-12-09 03:07:03,549 INFO L226 Difference]: Without dead ends: 4401 [2018-12-09 03:07:03,552 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3720 GetRequests, 3675 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=454, Invalid=1708, Unknown=0, NotChecked=0, Total=2162 [2018-12-09 03:07:03,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4401 states. [2018-12-09 03:07:03,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4401 to 4100. [2018-12-09 03:07:03,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4100 states. [2018-12-09 03:07:03,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4100 states to 4100 states and 4237 transitions. [2018-12-09 03:07:03,594 INFO L78 Accepts]: Start accepts. Automaton has 4100 states and 4237 transitions. Word has length 1822 [2018-12-09 03:07:03,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 03:07:03,595 INFO L480 AbstractCegarLoop]: Abstraction has 4100 states and 4237 transitions. [2018-12-09 03:07:03,595 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-12-09 03:07:03,595 INFO L276 IsEmpty]: Start isEmpty. Operand 4100 states and 4237 transitions. [2018-12-09 03:07:03,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1846 [2018-12-09 03:07:03,608 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 03:07:03,608 INFO L402 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 10, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-12-09 03:07:03,608 INFO L423 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 03:07:03,608 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:07:03,609 INFO L82 PathProgramCache]: Analyzing trace with hash -318110582, now seen corresponding path program 1 times [2018-12-09 03:07:03,609 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 03:07:03,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:07:03,609 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:07:03,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:07:03,609 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 03:07:03,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:07:06,821 INFO L134 CoverageAnalysis]: Checked inductivity of 10523 backedges. 2000 proven. 6738 refuted. 0 times theorem prover too weak. 1785 trivial. 0 not checked. [2018-12-09 03:07:06,822 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 03:07:06,822 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 03:07:06,822 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1846 with the following transitions: [2018-12-09 03:07:06,822 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [666], [667], [670], [671], [675], [679], [683], [686], [687], [690], [691], [695], [699], [703], [707], [711], [715], [719], [723], [726], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [778], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [935], [939], [943], [946], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-09 03:07:06,824 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 03:07:06,824 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 03:07:14,246 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 03:07:14,246 INFO L272 AbstractInterpreter]: Visited 203 different actions 820 times. Merged at 13 different actions 41 times. Widened at 1 different actions 2 times. Performed 9180 root evaluator evaluations with a maximum evaluation depth of 22. Performed 9180 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 21 fixpoints after 11 different actions. Largest state had 24 variables. [2018-12-09 03:07:14,247 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:07:14,247 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 03:07:14,248 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 03:07:14,248 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1eeaa1bb-610b-42cd-b35d-fa3afcb9f176/bin-2019/utaipan/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 03:07:14,254 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:07:14,254 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 03:07:14,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:07:14,436 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 03:07:15,417 INFO L134 CoverageAnalysis]: Checked inductivity of 10523 backedges. 4681 proven. 6 refuted. 0 times theorem prover too weak. 5836 trivial. 0 not checked. [2018-12-09 03:07:15,417 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 03:07:17,238 INFO L134 CoverageAnalysis]: Checked inductivity of 10523 backedges. 3110 proven. 349 refuted. 0 times theorem prover too weak. 7064 trivial. 0 not checked. [2018-12-09 03:07:17,254 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 03:07:17,254 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 8, 8] total 38 [2018-12-09 03:07:17,254 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 03:07:17,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-12-09 03:07:17,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-12-09 03:07:17,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=1260, Unknown=0, NotChecked=0, Total=1406 [2018-12-09 03:07:17,255 INFO L87 Difference]: Start difference. First operand 4100 states and 4237 transitions. Second operand 33 states. [2018-12-09 03:07:23,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 03:07:23,865 INFO L93 Difference]: Finished difference Result 8893 states and 9390 transitions. [2018-12-09 03:07:23,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2018-12-09 03:07:23,865 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 1845 [2018-12-09 03:07:23,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 03:07:23,871 INFO L225 Difference]: With dead ends: 8893 [2018-12-09 03:07:23,871 INFO L226 Difference]: Without dead ends: 4219 [2018-12-09 03:07:23,876 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3826 GetRequests, 3717 SyntacticMatches, 1 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3432 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=2075, Invalid=9915, Unknown=0, NotChecked=0, Total=11990 [2018-12-09 03:07:23,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4219 states. [2018-12-09 03:07:23,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4219 to 3898. [2018-12-09 03:07:23,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3898 states. [2018-12-09 03:07:23,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3898 states to 3898 states and 3975 transitions. [2018-12-09 03:07:23,926 INFO L78 Accepts]: Start accepts. Automaton has 3898 states and 3975 transitions. Word has length 1845 [2018-12-09 03:07:23,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 03:07:23,926 INFO L480 AbstractCegarLoop]: Abstraction has 3898 states and 3975 transitions. [2018-12-09 03:07:23,927 INFO L481 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-12-09 03:07:23,927 INFO L276 IsEmpty]: Start isEmpty. Operand 3898 states and 3975 transitions. [2018-12-09 03:07:23,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1938 [2018-12-09 03:07:23,940 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 03:07:23,941 INFO L402 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-12-09 03:07:23,941 INFO L423 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 03:07:23,941 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:07:23,941 INFO L82 PathProgramCache]: Analyzing trace with hash -2043261290, now seen corresponding path program 1 times [2018-12-09 03:07:23,941 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 03:07:23,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:07:23,942 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:07:23,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:07:23,942 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 03:07:24,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:07:25,040 INFO L134 CoverageAnalysis]: Checked inductivity of 11762 backedges. 732 proven. 0 refuted. 0 times theorem prover too weak. 11030 trivial. 0 not checked. [2018-12-09 03:07:25,040 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 03:07:25,040 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 03:07:25,040 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 03:07:25,041 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 03:07:25,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 03:07:25,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 03:07:25,041 INFO L87 Difference]: Start difference. First operand 3898 states and 3975 transitions. Second operand 3 states. [2018-12-09 03:07:25,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 03:07:25,277 INFO L93 Difference]: Finished difference Result 3898 states and 3975 transitions. [2018-12-09 03:07:25,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 03:07:25,277 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1937 [2018-12-09 03:07:25,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 03:07:25,278 INFO L225 Difference]: With dead ends: 3898 [2018-12-09 03:07:25,278 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 03:07:25,280 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 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 03:07:25,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 03:07:25,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 03:07:25,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 03:07:25,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 03:07:25,281 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1937 [2018-12-09 03:07:25,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 03:07:25,281 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 03:07:25,281 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 03:07:25,281 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 03:07:25,281 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 03:07:25,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 03:07:25,305 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 03:07:25,398 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 03:07:25,401 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 03:07:25,420 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 03:07:25,432 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 03:07:25,475 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 03:07:25,476 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 03:07:25,507 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 03:07:25,514 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 03:07:25,585 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 03:07:25,650 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 03:07:25,979 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 03:07:26,107 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 03:07:26,131 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 03:07:26,161 WARN L180 SmtUtils]: Spent 748.00 ms on a formula simplification. DAG size of input: 657 DAG size of output: 555 [2018-12-09 03:07:26,170 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 03:07:26,197 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 03:07:26,198 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 03:07:26,243 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 03:07:26,321 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 03:07:26,591 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 03:07:26,649 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 03:07:26,803 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 03:07:26,819 WARN L180 SmtUtils]: Spent 657.00 ms on a formula simplification. DAG size of input: 633 DAG size of output: 541 [2018-12-09 03:07:28,066 WARN L180 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 319 DAG size of output: 110 [2018-12-09 03:07:31,135 WARN L180 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 546 DAG size of output: 96 [2018-12-09 03:07:34,248 WARN L180 SmtUtils]: Spent 3.11 s on a formula simplification. DAG size of input: 542 DAG size of output: 100 [2018-12-09 03:07:34,250 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 03:07:34,250 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a12~0 |old(~a12~0)|) (<= |old(~a12~0)| ~a12~0) (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= |old(~a15~0)| ~a15~0)) [2018-12-09 03:07:34,250 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 03:07:34,250 INFO L448 ceAbstractionStarter]: For program point L432(lines 432 870) no Hoare annotation was computed. [2018-12-09 03:07:34,250 INFO L448 ceAbstractionStarter]: For program point L366(lines 366 870) no Hoare annotation was computed. [2018-12-09 03:07:34,250 INFO L448 ceAbstractionStarter]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,250 INFO L448 ceAbstractionStarter]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,251 INFO L448 ceAbstractionStarter]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,251 INFO L448 ceAbstractionStarter]: For program point L235(lines 235 870) no Hoare annotation was computed. [2018-12-09 03:07:34,251 INFO L448 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-12-09 03:07:34,251 INFO L448 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-12-09 03:07:34,251 INFO L448 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-12-09 03:07:34,251 INFO L448 ceAbstractionStarter]: For program point L764(lines 764 870) no Hoare annotation was computed. [2018-12-09 03:07:34,251 INFO L448 ceAbstractionStarter]: For program point L632(lines 632 870) no Hoare annotation was computed. [2018-12-09 03:07:34,251 INFO L448 ceAbstractionStarter]: For program point L500(lines 500 870) no Hoare annotation was computed. [2018-12-09 03:07:34,251 INFO L448 ceAbstractionStarter]: For program point L831(lines 831 870) no Hoare annotation was computed. [2018-12-09 03:07:34,251 INFO L448 ceAbstractionStarter]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,251 INFO L448 ceAbstractionStarter]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,251 INFO L448 ceAbstractionStarter]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,251 INFO L448 ceAbstractionStarter]: For program point L700(lines 700 870) no Hoare annotation was computed. [2018-12-09 03:07:34,251 INFO L448 ceAbstractionStarter]: For program point L568(lines 568 870) no Hoare annotation was computed. [2018-12-09 03:07:34,251 INFO L448 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-12-09 03:07:34,251 INFO L448 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-12-09 03:07:34,251 INFO L448 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-12-09 03:07:34,251 INFO L448 ceAbstractionStarter]: For program point L305(lines 305 870) no Hoare annotation was computed. [2018-12-09 03:07:34,251 INFO L448 ceAbstractionStarter]: For program point L438(lines 438 870) no Hoare annotation was computed. [2018-12-09 03:07:34,251 INFO L448 ceAbstractionStarter]: For program point L372(lines 372 870) no Hoare annotation was computed. [2018-12-09 03:07:34,251 INFO L448 ceAbstractionStarter]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,251 INFO L448 ceAbstractionStarter]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,251 INFO L448 ceAbstractionStarter]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,252 INFO L448 ceAbstractionStarter]: For program point L241(lines 241 870) no Hoare annotation was computed. [2018-12-09 03:07:34,252 INFO L448 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-12-09 03:07:34,252 INFO L448 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-12-09 03:07:34,252 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-12-09 03:07:34,252 INFO L448 ceAbstractionStarter]: For program point L638(lines 638 870) no Hoare annotation was computed. [2018-12-09 03:07:34,252 INFO L448 ceAbstractionStarter]: For program point L506(lines 506 870) no Hoare annotation was computed. [2018-12-09 03:07:34,252 INFO L448 ceAbstractionStarter]: For program point L837(lines 837 870) no Hoare annotation was computed. [2018-12-09 03:07:34,252 INFO L448 ceAbstractionStarter]: For program point L771(lines 771 870) no Hoare annotation was computed. [2018-12-09 03:07:34,252 INFO L448 ceAbstractionStarter]: For program point L573(lines 573 870) no Hoare annotation was computed. [2018-12-09 03:07:34,252 INFO L448 ceAbstractionStarter]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,252 INFO L448 ceAbstractionStarter]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,252 INFO L448 ceAbstractionStarter]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,252 INFO L448 ceAbstractionStarter]: For program point L706(lines 706 870) no Hoare annotation was computed. [2018-12-09 03:07:34,252 INFO L448 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-12-09 03:07:34,252 INFO L448 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-12-09 03:07:34,252 INFO L448 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-12-09 03:07:34,252 INFO L448 ceAbstractionStarter]: For program point L311(lines 311 870) no Hoare annotation was computed. [2018-12-09 03:07:34,252 INFO L448 ceAbstractionStarter]: For program point L444(lines 444 870) no Hoare annotation was computed. [2018-12-09 03:07:34,252 INFO L448 ceAbstractionStarter]: For program point L378(lines 378 870) no Hoare annotation was computed. [2018-12-09 03:07:34,252 INFO L448 ceAbstractionStarter]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,252 INFO L448 ceAbstractionStarter]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,252 INFO L448 ceAbstractionStarter]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,252 INFO L448 ceAbstractionStarter]: For program point L247(lines 247 870) no Hoare annotation was computed. [2018-12-09 03:07:34,252 INFO L448 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-12-09 03:07:34,252 INFO L448 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-12-09 03:07:34,253 INFO L448 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-12-09 03:07:34,253 INFO L448 ceAbstractionStarter]: For program point L842(lines 842 870) no Hoare annotation was computed. [2018-12-09 03:07:34,253 INFO L448 ceAbstractionStarter]: For program point L644(lines 644 870) no Hoare annotation was computed. [2018-12-09 03:07:34,253 INFO L448 ceAbstractionStarter]: For program point L512(lines 512 870) no Hoare annotation was computed. [2018-12-09 03:07:34,253 INFO L448 ceAbstractionStarter]: For program point L777(lines 777 870) no Hoare annotation was computed. [2018-12-09 03:07:34,253 INFO L448 ceAbstractionStarter]: For program point L579(lines 579 870) no Hoare annotation was computed. [2018-12-09 03:07:34,253 INFO L448 ceAbstractionStarter]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,253 INFO L448 ceAbstractionStarter]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,253 INFO L448 ceAbstractionStarter]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,253 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,253 INFO L448 ceAbstractionStarter]: For program point L712(lines 712 870) no Hoare annotation was computed. [2018-12-09 03:07:34,253 INFO L448 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-12-09 03:07:34,253 INFO L448 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-12-09 03:07:34,253 INFO L448 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-12-09 03:07:34,253 INFO L448 ceAbstractionStarter]: For program point L449(lines 449 870) no Hoare annotation was computed. [2018-12-09 03:07:34,253 INFO L448 ceAbstractionStarter]: For program point L317(lines 317 870) no Hoare annotation was computed. [2018-12-09 03:07:34,253 INFO L448 ceAbstractionStarter]: For program point L384(lines 384 870) no Hoare annotation was computed. [2018-12-09 03:07:34,253 INFO L448 ceAbstractionStarter]: For program point L252(lines 252 870) no Hoare annotation was computed. [2018-12-09 03:07:34,253 INFO L448 ceAbstractionStarter]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,253 INFO L448 ceAbstractionStarter]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,253 INFO L448 ceAbstractionStarter]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,253 INFO L448 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-12-09 03:07:34,253 INFO L448 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-12-09 03:07:34,253 INFO L448 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-12-09 03:07:34,253 INFO L448 ceAbstractionStarter]: For program point L848(lines 848 870) no Hoare annotation was computed. [2018-12-09 03:07:34,254 INFO L448 ceAbstractionStarter]: For program point L650(lines 650 870) no Hoare annotation was computed. [2018-12-09 03:07:34,254 INFO L448 ceAbstractionStarter]: For program point L518(lines 518 870) no Hoare annotation was computed. [2018-12-09 03:07:34,254 INFO L448 ceAbstractionStarter]: For program point L783(lines 783 870) no Hoare annotation was computed. [2018-12-09 03:07:34,254 INFO L448 ceAbstractionStarter]: For program point L585(lines 585 870) no Hoare annotation was computed. [2018-12-09 03:07:34,254 INFO L448 ceAbstractionStarter]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,254 INFO L448 ceAbstractionStarter]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,254 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,254 INFO L448 ceAbstractionStarter]: For program point L718(lines 718 870) no Hoare annotation was computed. [2018-12-09 03:07:34,254 INFO L448 ceAbstractionStarter]: For program point L454(lines 454 870) no Hoare annotation was computed. [2018-12-09 03:07:34,254 INFO L448 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-12-09 03:07:34,254 INFO L448 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-12-09 03:07:34,254 INFO L448 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-12-09 03:07:34,254 INFO L448 ceAbstractionStarter]: For program point L323(lines 323 870) no Hoare annotation was computed. [2018-12-09 03:07:34,254 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse7 (= ~a12~0 |old(~a12~0)|)) (.cse4 (= ~a24~0 |old(~a24~0)|)) (.cse5 (= ~a21~0 |old(~a21~0)|)) (.cse3 (<= ~a12~0 |old(~a12~0)|)) (.cse16 (<= |old(~a12~0)| ~a12~0)) (.cse8 (= ~a21~0 9)) (.cse9 (= |old(~a15~0)| ~a15~0)) (.cse10 (= 1 ~a24~0)) (.cse32 (= 9 |old(~a21~0)|)) (.cse1 (not (= 1 |old(~a24~0)|))) (.cse19 (= 5 |old(~a15~0)|))) (let ((.cse2 (not .cse19)) (.cse17 (= 10 ~a21~0)) (.cse14 (not (= 10 |old(~a21~0)|))) (.cse22 (or .cse32 .cse1)) (.cse13 (not (= 6 |old(~a15~0)|))) (.cse11 (< 0 (+ |old(~a12~0)| 43))) (.cse31 (and .cse3 .cse16 .cse8 .cse9 .cse10)) (.cse24 (< 73282 |old(~a12~0)|)) (.cse12 (< 7 |old(~a15~0)|)) (.cse0 (not (= 6 |old(~a21~0)|))) (.cse23 (and .cse7 .cse4 .cse5 .cse9)) (.cse28 (not (= 8 |old(~a15~0)|))) (.cse29 (= |calculate_output_#in~input| 0)) (.cse27 (and .cse3 .cse16 .cse5 (= 8 ~a15~0) (= ~a24~0 1))) (.cse15 (< 11 |old(~a12~0)|)) (.cse21 (and .cse3 .cse16 .cse4 .cse5 .cse9)) (.cse25 (not (= 8 |old(~a21~0)|))) (.cse6 (not .cse32)) (.cse30 (not (= 7 |old(~a15~0)|))) (.cse26 (not (= 7 |old(~a21~0)|))) (.cse18 (< |old(~a12~0)| 19)) (.cse20 (and .cse3 .cse16 .cse5 .cse9 .cse10))) (and (or .cse0 .cse1 .cse2 (and .cse3 .cse4 .cse5 (= ~a15~0 |old(~a15~0)|))) (or .cse6 .cse1 (and .cse7 .cse8 .cse9 .cse10) .cse11 .cse12) (or .cse13 (= 6 ~a15~0)) (or .cse14 .cse1 .cse15 (and .cse3 .cse16 .cse9 .cse10 .cse17)) (or .cse14 .cse18 .cse19 .cse1 .cse20) (or .cse0 .cse21 .cse11 .cse12) (or .cse22 .cse23 .cse24 .cse25) (or (and .cse7 .cse5 .cse9 .cse10) .cse26 (< 76 |old(~a12~0)|) .cse22 .cse12) (or (or .cse22 .cse24) .cse14 .cse2 (and .cse7 .cse9 .cse10 .cse17)) (or .cse27 (or .cse28 .cse29 .cse26 .cse1 .cse15)) (or .cse23 .cse14 .cse22 .cse30) (or .cse6 .cse31 .cse18 .cse19 .cse1) (or (<= (+ ~a12~0 43) 0) .cse13 .cse11) (or .cse0 .cse18 .cse19 .cse20 .cse1) (or .cse6 (< |old(~a12~0)| 12) .cse31 .cse1 .cse24 .cse12) (or .cse0 .cse1 .cse30 .cse23) (or .cse28 .cse29 .cse6 .cse27 .cse1 .cse15) (or .cse19 .cse1 .cse21 .cse25) (or (and .cse7 .cse8 (= 7 ~a15~0) .cse10) .cse6 .cse1 .cse30) (or .cse26 .cse18 .cse19 .cse1 .cse20)))) [2018-12-09 03:07:34,254 INFO L448 ceAbstractionStarter]: For program point L390(lines 390 870) no Hoare annotation was computed. [2018-12-09 03:07:34,254 INFO L448 ceAbstractionStarter]: For program point L258(lines 258 870) no Hoare annotation was computed. [2018-12-09 03:07:34,254 INFO L448 ceAbstractionStarter]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,254 INFO L448 ceAbstractionStarter]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,254 INFO L448 ceAbstractionStarter]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,254 INFO L448 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-12-09 03:07:34,254 INFO L448 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-12-09 03:07:34,255 INFO L448 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-12-09 03:07:34,255 INFO L448 ceAbstractionStarter]: For program point L854(lines 854 870) no Hoare annotation was computed. [2018-12-09 03:07:34,255 INFO L448 ceAbstractionStarter]: For program point L656(lines 656 870) no Hoare annotation was computed. [2018-12-09 03:07:34,255 INFO L448 ceAbstractionStarter]: For program point L524(lines 524 870) no Hoare annotation was computed. [2018-12-09 03:07:34,255 INFO L448 ceAbstractionStarter]: For program point L789(lines 789 870) no Hoare annotation was computed. [2018-12-09 03:07:34,255 INFO L448 ceAbstractionStarter]: For program point L591(lines 591 870) no Hoare annotation was computed. [2018-12-09 03:07:34,255 INFO L448 ceAbstractionStarter]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,255 INFO L448 ceAbstractionStarter]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,255 INFO L448 ceAbstractionStarter]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,255 INFO L448 ceAbstractionStarter]: For program point L724(lines 724 870) no Hoare annotation was computed. [2018-12-09 03:07:34,255 INFO L448 ceAbstractionStarter]: For program point L460(lines 460 870) no Hoare annotation was computed. [2018-12-09 03:07:34,255 INFO L448 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-12-09 03:07:34,255 INFO L448 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-12-09 03:07:34,255 INFO L448 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-12-09 03:07:34,255 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 870) no Hoare annotation was computed. [2018-12-09 03:07:34,255 INFO L448 ceAbstractionStarter]: For program point L396(lines 396 870) no Hoare annotation was computed. [2018-12-09 03:07:34,255 INFO L448 ceAbstractionStarter]: For program point L264(lines 264 870) no Hoare annotation was computed. [2018-12-09 03:07:34,255 INFO L448 ceAbstractionStarter]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,255 INFO L448 ceAbstractionStarter]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,255 INFO L448 ceAbstractionStarter]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,255 INFO L448 ceAbstractionStarter]: For program point L859(lines 859 870) no Hoare annotation was computed. [2018-12-09 03:07:34,255 INFO L448 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-12-09 03:07:34,255 INFO L448 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-12-09 03:07:34,255 INFO L448 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-12-09 03:07:34,255 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 145) no Hoare annotation was computed. [2018-12-09 03:07:34,256 INFO L448 ceAbstractionStarter]: For program point L662(lines 662 870) no Hoare annotation was computed. [2018-12-09 03:07:34,256 INFO L448 ceAbstractionStarter]: For program point L530(lines 530 870) no Hoare annotation was computed. [2018-12-09 03:07:34,256 INFO L448 ceAbstractionStarter]: For program point L795(lines 795 870) no Hoare annotation was computed. [2018-12-09 03:07:34,256 INFO L448 ceAbstractionStarter]: For program point L597(lines 597 870) no Hoare annotation was computed. [2018-12-09 03:07:34,256 INFO L448 ceAbstractionStarter]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,256 INFO L448 ceAbstractionStarter]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,256 INFO L448 ceAbstractionStarter]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,256 INFO L448 ceAbstractionStarter]: For program point L730(lines 730 870) no Hoare annotation was computed. [2018-12-09 03:07:34,256 INFO L448 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-12-09 03:07:34,256 INFO L448 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-12-09 03:07:34,256 INFO L448 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-12-09 03:07:34,256 INFO L448 ceAbstractionStarter]: For program point L467(lines 467 870) no Hoare annotation was computed. [2018-12-09 03:07:34,256 INFO L448 ceAbstractionStarter]: For program point L335(lines 335 870) no Hoare annotation was computed. [2018-12-09 03:07:34,256 INFO L448 ceAbstractionStarter]: For program point L269(lines 269 870) no Hoare annotation was computed. [2018-12-09 03:07:34,256 INFO L448 ceAbstractionStarter]: For program point L402(lines 402 870) no Hoare annotation was computed. [2018-12-09 03:07:34,256 INFO L448 ceAbstractionStarter]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,256 INFO L448 ceAbstractionStarter]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,256 INFO L448 ceAbstractionStarter]: For program point L865(lines 865 870) no Hoare annotation was computed. [2018-12-09 03:07:34,256 INFO L448 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-12-09 03:07:34,256 INFO L448 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-12-09 03:07:34,256 INFO L448 ceAbstractionStarter]: For program point L668(lines 668 870) no Hoare annotation was computed. [2018-12-09 03:07:34,256 INFO L448 ceAbstractionStarter]: For program point L536(lines 536 870) no Hoare annotation was computed. [2018-12-09 03:07:34,256 INFO L448 ceAbstractionStarter]: For program point L801(lines 801 870) no Hoare annotation was computed. [2018-12-09 03:07:34,256 INFO L448 ceAbstractionStarter]: For program point L735(lines 735 870) no Hoare annotation was computed. [2018-12-09 03:07:34,256 INFO L448 ceAbstractionStarter]: For program point L603(lines 603 870) no Hoare annotation was computed. [2018-12-09 03:07:34,256 INFO L448 ceAbstractionStarter]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,257 INFO L448 ceAbstractionStarter]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,257 INFO L448 ceAbstractionStarter]: For program point L472(lines 472 870) no Hoare annotation was computed. [2018-12-09 03:07:34,257 INFO L448 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-12-09 03:07:34,257 INFO L448 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-12-09 03:07:34,257 INFO L448 ceAbstractionStarter]: For program point L341(lines 341 870) no Hoare annotation was computed. [2018-12-09 03:07:34,257 INFO L448 ceAbstractionStarter]: For program point L275(lines 275 870) no Hoare annotation was computed. [2018-12-09 03:07:34,257 INFO L448 ceAbstractionStarter]: For program point L408(lines 408 870) no Hoare annotation was computed. [2018-12-09 03:07:34,257 INFO L448 ceAbstractionStarter]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,257 INFO L448 ceAbstractionStarter]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,257 INFO L448 ceAbstractionStarter]: For program point L541(lines 541 870) no Hoare annotation was computed. [2018-12-09 03:07:34,257 INFO L448 ceAbstractionStarter]: For program point L211(lines 211 870) no Hoare annotation was computed. [2018-12-09 03:07:34,257 INFO L448 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-12-09 03:07:34,257 INFO L448 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-12-09 03:07:34,257 INFO L448 ceAbstractionStarter]: For program point L674(lines 674 870) no Hoare annotation was computed. [2018-12-09 03:07:34,257 INFO L448 ceAbstractionStarter]: For program point L807(lines 807 870) no Hoare annotation was computed. [2018-12-09 03:07:34,257 INFO L448 ceAbstractionStarter]: For program point L741(lines 741 870) no Hoare annotation was computed. [2018-12-09 03:07:34,257 INFO L448 ceAbstractionStarter]: For program point L609(lines 609 870) no Hoare annotation was computed. [2018-12-09 03:07:34,257 INFO L448 ceAbstractionStarter]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,257 INFO L448 ceAbstractionStarter]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,257 INFO L448 ceAbstractionStarter]: For program point L478(lines 478 870) no Hoare annotation was computed. [2018-12-09 03:07:34,257 INFO L448 ceAbstractionStarter]: For program point L280(lines 280 870) no Hoare annotation was computed. [2018-12-09 03:07:34,257 INFO L448 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-12-09 03:07:34,257 INFO L448 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-12-09 03:07:34,257 INFO L448 ceAbstractionStarter]: For program point L677(lines 677 870) no Hoare annotation was computed. [2018-12-09 03:07:34,257 INFO L448 ceAbstractionStarter]: For program point L347(lines 347 870) no Hoare annotation was computed. [2018-12-09 03:07:34,257 INFO L448 ceAbstractionStarter]: For program point L414(lines 414 870) no Hoare annotation was computed. [2018-12-09 03:07:34,257 INFO L448 ceAbstractionStarter]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,258 INFO L448 ceAbstractionStarter]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,258 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,258 INFO L448 ceAbstractionStarter]: For program point L547(lines 547 870) no Hoare annotation was computed. [2018-12-09 03:07:34,258 INFO L448 ceAbstractionStarter]: For program point L217(lines 217 870) no Hoare annotation was computed. [2018-12-09 03:07:34,258 INFO L448 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-12-09 03:07:34,258 INFO L448 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-12-09 03:07:34,258 INFO L448 ceAbstractionStarter]: For program point L747(lines 747 870) no Hoare annotation was computed. [2018-12-09 03:07:34,258 INFO L448 ceAbstractionStarter]: For program point L615(lines 615 870) no Hoare annotation was computed. [2018-12-09 03:07:34,258 INFO L448 ceAbstractionStarter]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,258 INFO L448 ceAbstractionStarter]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,258 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-12-09 03:07:34,258 INFO L448 ceAbstractionStarter]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,258 INFO L448 ceAbstractionStarter]: For program point L814(lines 814 870) no Hoare annotation was computed. [2018-12-09 03:07:34,258 INFO L448 ceAbstractionStarter]: For program point L484(lines 484 870) no Hoare annotation was computed. [2018-12-09 03:07:34,258 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 870) no Hoare annotation was computed. [2018-12-09 03:07:34,258 INFO L448 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-12-09 03:07:34,258 INFO L448 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-12-09 03:07:34,258 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-12-09 03:07:34,258 INFO L448 ceAbstractionStarter]: For program point L683(lines 683 870) no Hoare annotation was computed. [2018-12-09 03:07:34,258 INFO L448 ceAbstractionStarter]: For program point L353(lines 353 870) no Hoare annotation was computed. [2018-12-09 03:07:34,258 INFO L448 ceAbstractionStarter]: For program point L552(lines 552 870) no Hoare annotation was computed. [2018-12-09 03:07:34,258 INFO L448 ceAbstractionStarter]: For program point L420(lines 420 870) no Hoare annotation was computed. [2018-12-09 03:07:34,258 INFO L448 ceAbstractionStarter]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,258 INFO L448 ceAbstractionStarter]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,258 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,258 INFO L448 ceAbstractionStarter]: For program point L223(lines 223 870) no Hoare annotation was computed. [2018-12-09 03:07:34,258 INFO L448 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-12-09 03:07:34,259 INFO L448 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-12-09 03:07:34,259 INFO L448 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-12-09 03:07:34,259 INFO L448 ceAbstractionStarter]: For program point L752(lines 752 870) no Hoare annotation was computed. [2018-12-09 03:07:34,259 INFO L448 ceAbstractionStarter]: For program point L819(lines 819 870) no Hoare annotation was computed. [2018-12-09 03:07:34,259 INFO L448 ceAbstractionStarter]: For program point L621(lines 621 870) no Hoare annotation was computed. [2018-12-09 03:07:34,259 INFO L448 ceAbstractionStarter]: For program point L555(lines 555 870) no Hoare annotation was computed. [2018-12-09 03:07:34,259 INFO L448 ceAbstractionStarter]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,259 INFO L448 ceAbstractionStarter]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,259 INFO L448 ceAbstractionStarter]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,259 INFO L448 ceAbstractionStarter]: For program point L688(lines 688 870) no Hoare annotation was computed. [2018-12-09 03:07:34,259 INFO L448 ceAbstractionStarter]: For program point L490(lines 490 870) no Hoare annotation was computed. [2018-12-09 03:07:34,259 INFO L448 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-12-09 03:07:34,259 INFO L448 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-12-09 03:07:34,259 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-12-09 03:07:34,259 INFO L448 ceAbstractionStarter]: For program point L359(lines 359 870) no Hoare annotation was computed. [2018-12-09 03:07:34,259 INFO L448 ceAbstractionStarter]: For program point L293(lines 293 870) no Hoare annotation was computed. [2018-12-09 03:07:34,259 INFO L448 ceAbstractionStarter]: For program point L426(lines 426 870) no Hoare annotation was computed. [2018-12-09 03:07:34,259 INFO L448 ceAbstractionStarter]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,259 INFO L448 ceAbstractionStarter]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,259 INFO L448 ceAbstractionStarter]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,259 INFO L448 ceAbstractionStarter]: For program point L229(lines 229 870) no Hoare annotation was computed. [2018-12-09 03:07:34,259 INFO L448 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-12-09 03:07:34,259 INFO L448 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-12-09 03:07:34,259 INFO L448 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-12-09 03:07:34,259 INFO L448 ceAbstractionStarter]: For program point L758(lines 758 870) no Hoare annotation was computed. [2018-12-09 03:07:34,259 INFO L448 ceAbstractionStarter]: For program point L626(lines 626 870) no Hoare annotation was computed. [2018-12-09 03:07:34,260 INFO L448 ceAbstractionStarter]: For program point L825(lines 825 870) no Hoare annotation was computed. [2018-12-09 03:07:34,260 INFO L448 ceAbstractionStarter]: For program point L561(lines 561 870) no Hoare annotation was computed. [2018-12-09 03:07:34,260 INFO L448 ceAbstractionStarter]: For program point L495(lines 495 870) no Hoare annotation was computed. [2018-12-09 03:07:34,260 INFO L448 ceAbstractionStarter]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,260 INFO L448 ceAbstractionStarter]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,260 INFO L448 ceAbstractionStarter]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2018-12-09 03:07:34,260 INFO L448 ceAbstractionStarter]: For program point L694(lines 694 870) no Hoare annotation was computed. [2018-12-09 03:07:34,260 INFO L448 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-12-09 03:07:34,260 INFO L448 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-12-09 03:07:34,260 INFO L448 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-12-09 03:07:34,260 INFO L448 ceAbstractionStarter]: For program point L299(lines 299 870) no Hoare annotation was computed. [2018-12-09 03:07:34,260 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 03:07:34,260 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 8 ~a15~0) (= (+ ~a12~0 49) 0) (= ~a24~0 1) (= ~a21~0 7)) [2018-12-09 03:07:34,260 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 03:07:34,260 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 03:07:34,260 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (= 8 |old(~a15~0)|)) (not (= 7 |old(~a21~0)|)) (and (= 7 ~a21~0) (<= |old(~a12~0)| ~a12~0) (<= (+ ~a12~0 49) 0) (= |old(~a15~0)| ~a15~0) (= ~a24~0 1)) (not (= 1 |old(~a24~0)|)) (not (= 0 (+ |old(~a12~0)| 49)))) [2018-12-09 03:07:34,260 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2018-12-09 03:07:34,260 INFO L444 ceAbstractionStarter]: At program point L888(line 888) the Hoare annotation is: (let ((.cse8 (= 9 ~a21~0)) (.cse0 (= 1 ~a24~0)) (.cse20 (or (not (= 6 |old(~a21~0)|)) (not (= 5 |old(~a15~0)|)))) (.cse5 (= 5 ~a15~0))) (let ((.cse4 (= 6 ~a21~0)) (.cse12 (not .cse5)) (.cse18 (= ~a21~0 10)) (.cse16 (and (not .cse8) .cse0 .cse20))) (let ((.cse13 (and (not (= 10 |old(~a21~0)|)) .cse18 .cse16)) (.cse11 (<= ~a12~0 11)) (.cse9 (not (= main_~input~0 0))) (.cse10 (= ~a15~0 8)) (.cse2 (<= ~a15~0 7)) (.cse1 (<= (+ ~a12~0 43) 0)) (.cse17 (and .cse0 .cse20 .cse12)) (.cse3 (= ~a21~0 9)) (.cse15 (= 7 ~a15~0)) (.cse19 (and .cse4 .cse0 .cse20 .cse12)) (.cse6 (<= ~a12~0 73282)) (.cse7 (= ~a21~0 7)) (.cse14 (<= 19 ~a12~0))) (or (not (= 8 |old(~a15~0)|)) (and (and .cse0 .cse1) .cse2 .cse3) (and .cse4 .cse0 .cse5) (and (<= 12 ~a12~0) (and (and .cse6 .cse2 .cse3) .cse0)) (= 6 ~a15~0) (not (= 7 |old(~a21~0)|)) (not (= 0 (+ |old(~a12~0)| 49))) (and (<= ~a12~0 76) .cse0 .cse2 .cse7) (and (and .cse8 (and .cse9 .cse10 (= ~a24~0 1))) .cse11) (and .cse12 .cse13 .cse14) (and .cse15 .cse13) (and .cse16 (= 8 ~a21~0) .cse12) (and (and .cse17 .cse3) .cse14) (and .cse16 .cse18 .cse11) (and .cse5 (and .cse6 .cse13)) (and .cse19 .cse14) (and (and .cse11 (and (= 7 ~a21~0) .cse9 .cse10)) .cse0) (and .cse2 (and .cse4 .cse1)) (and .cse17 .cse15 .cse3) (and .cse15 .cse19) (and .cse6 .cse16 (= ~a21~0 8)) (and (and .cse0 .cse7) .cse12 .cse14) (not (= 1 |old(~a24~0)|)))))) [2018-12-09 03:07:34,260 INFO L448 ceAbstractionStarter]: For program point L888-1(line 888) no Hoare annotation was computed. [2018-12-09 03:07:34,260 INFO L448 ceAbstractionStarter]: For program point L885(line 885) no Hoare annotation was computed. [2018-12-09 03:07:34,261 INFO L444 ceAbstractionStarter]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse10 (= 9 ~a21~0)) (.cse0 (= 1 ~a24~0)) (.cse20 (or (not (= 6 |old(~a21~0)|)) (not (= 5 |old(~a15~0)|)))) (.cse5 (= 5 ~a15~0))) (let ((.cse4 (= 6 ~a21~0)) (.cse12 (not .cse5)) (.cse18 (= ~a21~0 10)) (.cse16 (and (not .cse10) .cse0 .cse20))) (let ((.cse7 (= ~a15~0 8)) (.cse8 (= ~a24~0 1)) (.cse9 (<= ~a12~0 11)) (.cse13 (and (not (= 10 |old(~a21~0)|)) .cse18 .cse16)) (.cse2 (<= ~a15~0 7)) (.cse1 (<= (+ ~a12~0 43) 0)) (.cse17 (and .cse0 .cse20 .cse12)) (.cse3 (= ~a21~0 9)) (.cse15 (= 7 ~a15~0)) (.cse19 (and .cse4 .cse0 .cse20 .cse12)) (.cse6 (<= ~a12~0 73282)) (.cse11 (= ~a21~0 7)) (.cse14 (<= 19 ~a12~0))) (or (not (= 8 |old(~a15~0)|)) (and (and .cse0 .cse1) .cse2 .cse3) (and .cse4 .cse0 .cse5) (and (<= 12 ~a12~0) (and (and .cse6 .cse2 .cse3) .cse0)) (= 6 ~a15~0) (and (and (= 7 ~a21~0) .cse7 .cse8) .cse9) (not (= 7 |old(~a21~0)|)) (and .cse9 (and (and .cse7 .cse8) .cse10)) (not (= 0 (+ |old(~a12~0)| 49))) (and (<= ~a12~0 76) .cse0 .cse2 .cse11) (and .cse12 .cse13 .cse14) (and .cse15 .cse13) (and .cse16 (= 8 ~a21~0) .cse12) (and (and .cse17 .cse3) .cse14) (and .cse16 .cse18 .cse9) (and .cse5 (and .cse6 .cse13)) (and .cse19 .cse14) (and .cse2 (and .cse4 .cse1)) (and .cse17 .cse15 .cse3) (and .cse15 .cse19) (and .cse6 .cse16 (= ~a21~0 8)) (and (and .cse0 .cse11) .cse12 .cse14) (not (= 1 |old(~a24~0)|)))))) [2018-12-09 03:07:34,261 INFO L448 ceAbstractionStarter]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2018-12-09 03:07:34,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:07:34 BoogieIcfgContainer [2018-12-09 03:07:34,269 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 03:07:34,269 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 03:07:34,269 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 03:07:34,270 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 03:07:34,270 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:03:52" (3/4) ... [2018-12-09 03:07:34,272 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 03:07:34,276 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 03:07:34,276 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-12-09 03:07:34,276 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 03:07:34,283 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-09 03:07:34,284 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 03:07:34,302 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((!(8 == \old(a15)) || (((1 == a24 && a12 + 43 <= 0) && a15 <= 7) && a21 == 9)) || ((6 == a21 && 1 == a24) && 5 == a15)) || (12 <= a12 && ((a12 <= 73282 && a15 <= 7) && a21 == 9) && 1 == a24)) || 6 == a15) || (((7 == a21 && a15 == 8) && a24 == 1) && a12 <= 11)) || !(7 == \old(a21))) || (a12 <= 11 && (a15 == 8 && a24 == 1) && 9 == a21)) || !(0 == \old(a12) + 49)) || (((a12 <= 76 && 1 == a24) && a15 <= 7) && a21 == 7)) || ((!(5 == a15) && (!(10 == \old(a21)) && a21 == 10) && (!(9 == a21) && 1 == a24) && (!(6 == \old(a21)) || !(5 == \old(a15)))) && 19 <= a12)) || (7 == a15 && (!(10 == \old(a21)) && a21 == 10) && (!(9 == a21) && 1 == a24) && (!(6 == \old(a21)) || !(5 == \old(a15))))) || ((((!(9 == a21) && 1 == a24) && (!(6 == \old(a21)) || !(5 == \old(a15)))) && 8 == a21) && !(5 == a15))) || ((((1 == a24 && (!(6 == \old(a21)) || !(5 == \old(a15)))) && !(5 == a15)) && a21 == 9) && 19 <= a12)) || ((((!(9 == a21) && 1 == a24) && (!(6 == \old(a21)) || !(5 == \old(a15)))) && a21 == 10) && a12 <= 11)) || (5 == a15 && a12 <= 73282 && (!(10 == \old(a21)) && a21 == 10) && (!(9 == a21) && 1 == a24) && (!(6 == \old(a21)) || !(5 == \old(a15))))) || ((((6 == a21 && 1 == a24) && (!(6 == \old(a21)) || !(5 == \old(a15)))) && !(5 == a15)) && 19 <= a12)) || (a15 <= 7 && 6 == a21 && a12 + 43 <= 0)) || ((((1 == a24 && (!(6 == \old(a21)) || !(5 == \old(a15)))) && !(5 == a15)) && 7 == a15) && a21 == 9)) || (7 == a15 && ((6 == a21 && 1 == a24) && (!(6 == \old(a21)) || !(5 == \old(a15)))) && !(5 == a15))) || ((a12 <= 73282 && (!(9 == a21) && 1 == a24) && (!(6 == \old(a21)) || !(5 == \old(a15)))) && a21 == 8)) || (((1 == a24 && a21 == 7) && !(5 == a15)) && 19 <= a12)) || !(1 == \old(a24)) [2018-12-09 03:07:34,354 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1eeaa1bb-610b-42cd-b35d-fa3afcb9f176/bin-2019/utaipan/witness.graphml [2018-12-09 03:07:34,354 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 03:07:34,355 INFO L168 Benchmark]: Toolchain (without parser) took 223002.08 ms. Allocated memory was 1.0 GB in the beginning and 4.8 GB in the end (delta: 3.7 GB). Free memory was 948.1 MB in the beginning and 2.0 GB in the end (delta: -1.0 GB). Peak memory consumption was 2.7 GB. Max. memory is 11.5 GB. [2018-12-09 03:07:34,355 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 03:07:34,355 INFO L168 Benchmark]: CACSL2BoogieTranslator took 347.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -166.8 MB). Peak memory consumption was 47.1 MB. Max. memory is 11.5 GB. [2018-12-09 03:07:34,356 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 03:07:34,356 INFO L168 Benchmark]: Boogie Preprocessor took 56.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 03:07:34,356 INFO L168 Benchmark]: RCFGBuilder took 720.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 983.0 MB in the end (delta: 123.8 MB). Peak memory consumption was 123.8 MB. Max. memory is 11.5 GB. [2018-12-09 03:07:34,356 INFO L168 Benchmark]: TraceAbstraction took 221765.40 ms. Allocated memory was 1.2 GB in the beginning and 4.8 GB in the end (delta: 3.6 GB). Free memory was 983.0 MB in the beginning and 2.0 GB in the end (delta: -1.0 GB). Peak memory consumption was 4.0 GB. Max. memory is 11.5 GB. [2018-12-09 03:07:34,356 INFO L168 Benchmark]: Witness Printer took 85.02 ms. Allocated memory is still 4.8 GB. Free memory was 2.0 GB in the beginning and 2.0 GB in the end (delta: 38.8 MB). Peak memory consumption was 38.8 MB. Max. memory is 11.5 GB. [2018-12-09 03:07:34,357 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 347.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -166.8 MB). Peak memory consumption was 47.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 56.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 720.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 983.0 MB in the end (delta: 123.8 MB). Peak memory consumption was 123.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 221765.40 ms. Allocated memory was 1.2 GB in the beginning and 4.8 GB in the end (delta: 3.6 GB). Free memory was 983.0 MB in the beginning and 2.0 GB in the end (delta: -1.0 GB). Peak memory consumption was 4.0 GB. Max. memory is 11.5 GB. * Witness Printer took 85.02 ms. Allocated memory is still 4.8 GB. Free memory was 2.0 GB in the beginning and 2.0 GB in the end (delta: 38.8 MB). Peak memory consumption was 38.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 145]: 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: 880]: Loop Invariant Derived loop invariant: (((((((((((((((((((((!(8 == \old(a15)) || (((1 == a24 && a12 + 43 <= 0) && a15 <= 7) && a21 == 9)) || ((6 == a21 && 1 == a24) && 5 == a15)) || (12 <= a12 && ((a12 <= 73282 && a15 <= 7) && a21 == 9) && 1 == a24)) || 6 == a15) || (((7 == a21 && a15 == 8) && a24 == 1) && a12 <= 11)) || !(7 == \old(a21))) || (a12 <= 11 && (a15 == 8 && a24 == 1) && 9 == a21)) || !(0 == \old(a12) + 49)) || (((a12 <= 76 && 1 == a24) && a15 <= 7) && a21 == 7)) || ((!(5 == a15) && (!(10 == \old(a21)) && a21 == 10) && (!(9 == a21) && 1 == a24) && (!(6 == \old(a21)) || !(5 == \old(a15)))) && 19 <= a12)) || (7 == a15 && (!(10 == \old(a21)) && a21 == 10) && (!(9 == a21) && 1 == a24) && (!(6 == \old(a21)) || !(5 == \old(a15))))) || ((((!(9 == a21) && 1 == a24) && (!(6 == \old(a21)) || !(5 == \old(a15)))) && 8 == a21) && !(5 == a15))) || ((((1 == a24 && (!(6 == \old(a21)) || !(5 == \old(a15)))) && !(5 == a15)) && a21 == 9) && 19 <= a12)) || ((((!(9 == a21) && 1 == a24) && (!(6 == \old(a21)) || !(5 == \old(a15)))) && a21 == 10) && a12 <= 11)) || (5 == a15 && a12 <= 73282 && (!(10 == \old(a21)) && a21 == 10) && (!(9 == a21) && 1 == a24) && (!(6 == \old(a21)) || !(5 == \old(a15))))) || ((((6 == a21 && 1 == a24) && (!(6 == \old(a21)) || !(5 == \old(a15)))) && !(5 == a15)) && 19 <= a12)) || (a15 <= 7 && 6 == a21 && a12 + 43 <= 0)) || ((((1 == a24 && (!(6 == \old(a21)) || !(5 == \old(a15)))) && !(5 == a15)) && 7 == a15) && a21 == 9)) || (7 == a15 && ((6 == a21 && 1 == a24) && (!(6 == \old(a21)) || !(5 == \old(a15)))) && !(5 == a15))) || ((a12 <= 73282 && (!(9 == a21) && 1 == a24) && (!(6 == \old(a21)) || !(5 == \old(a15)))) && a21 == 8)) || (((1 == a24 && a21 == 7) && !(5 == a15)) && 19 <= a12)) || !(1 == \old(a24)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. SAFE Result, 221.7s OverallTime, 21 OverallIterations, 16 TraceHistogramMax, 83.8s AutomataDifference, 0.0s DeadEndRemovalTime, 8.9s HoareAnnotationTime, HoareTripleCheckerStatistics: 1272 SDtfs, 34151 SDslu, 2543 SDs, 0 SdLazy, 45643 SolverSat, 5403 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 64.0s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 33486 GetRequests, 32839 SyntacticMatches, 15 SemanticMatches, 632 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9182 ImplicationChecksByTransitivity, 11.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6172occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 84.8s AbstIntTime, 17 AbstIntIterations, 4 AbstIntStrong, 0.9975651635636338 AbsIntWeakeningRatio, 0.07822533566841798 AbsIntAvgWeakeningVarsNumRemoved, 16.261529480443667 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 21 MinimizatonAttempts, 2958 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 414 PreInvPairs, 534 NumberOfFragments, 1470 HoareAnnotationTreeSize, 414 FomulaSimplifications, 20879333 FormulaSimplificationTreeSizeReduction, 1.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1708281 FormulaSimplificationTreeSizeReductionInter, 7.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.5s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 20.2s InterpolantComputationTime, 35012 NumberOfCodeBlocks, 35012 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 50439 ConstructedInterpolants, 0 QuantifiedInterpolants, 208426001 SizeOfPredicates, 41 NumberOfNonLiveVariables, 21336 ConjunctsInSsa, 125 ConjunctsInUnsatCore, 47 InterpolantComputations, 4 PerfectInterpolantSequences, 178476/199500 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...