./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label45_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_97017beb-989e-4953-a741-c9282b8200d3/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_97017beb-989e-4953-a741-c9282b8200d3/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_97017beb-989e-4953-a741-c9282b8200d3/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_97017beb-989e-4953-a741-c9282b8200d3/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label45_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_97017beb-989e-4953-a741-c9282b8200d3/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_97017beb-989e-4953-a741-c9282b8200d3/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 3a5c86310b0cee0c3fda3eee1e81be72e3f86b95 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-03 05:44:54,548 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 05:44:54,549 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 05:44:54,555 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 05:44:54,555 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 05:44:54,556 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 05:44:54,556 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 05:44:54,557 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 05:44:54,558 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 05:44:54,558 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 05:44:54,559 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 05:44:54,559 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 05:44:54,559 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 05:44:54,560 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 05:44:54,560 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 05:44:54,561 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 05:44:54,561 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 05:44:54,562 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 05:44:54,563 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 05:44:54,563 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 05:44:54,564 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 05:44:54,565 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 05:44:54,566 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 05:44:54,566 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 05:44:54,566 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 05:44:54,566 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 05:44:54,567 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 05:44:54,567 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 05:44:54,568 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 05:44:54,569 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 05:44:54,569 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 05:44:54,569 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 05:44:54,569 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 05:44:54,569 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 05:44:54,570 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 05:44:54,570 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 05:44:54,571 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_97017beb-989e-4953-a741-c9282b8200d3/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-03 05:44:54,578 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 05:44:54,578 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 05:44:54,579 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 05:44:54,579 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 05:44:54,579 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 05:44:54,580 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 05:44:54,580 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 05:44:54,580 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 05:44:54,580 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 05:44:54,580 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 05:44:54,580 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 05:44:54,580 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-03 05:44:54,581 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 05:44:54,581 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 05:44:54,581 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 05:44:54,582 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 05:44:54,582 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 05:44:54,582 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 05:44:54,582 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 05:44:54,582 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 05:44:54,582 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 05:44:54,583 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 05:44:54,583 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 05:44:54,583 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 05:44:54,583 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 05:44:54,583 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 05:44:54,583 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 05:44:54,583 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 05:44:54,584 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 05:44:54,584 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 05:44:54,584 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 05:44:54,584 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 05:44:54,584 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 05:44:54,584 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 05:44:54,584 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 05:44:54,584 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 05:44:54,584 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_97017beb-989e-4953-a741-c9282b8200d3/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 -> 3a5c86310b0cee0c3fda3eee1e81be72e3f86b95 [2018-12-03 05:44:54,608 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 05:44:54,616 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 05:44:54,618 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 05:44:54,620 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 05:44:54,620 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 05:44:54,620 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_97017beb-989e-4953-a741-c9282b8200d3/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem14_label45_true-unreach-call_false-termination.c [2018-12-03 05:44:54,657 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_97017beb-989e-4953-a741-c9282b8200d3/bin-2019/utaipan/data/42ec4fc3c/a981f83f97ac4df88cd1b2ec2b81937b/FLAG48ea4fa31 [2018-12-03 05:44:55,162 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 05:44:55,162 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_97017beb-989e-4953-a741-c9282b8200d3/sv-benchmarks/c/eca-rers2012/Problem14_label45_true-unreach-call_false-termination.c [2018-12-03 05:44:55,169 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_97017beb-989e-4953-a741-c9282b8200d3/bin-2019/utaipan/data/42ec4fc3c/a981f83f97ac4df88cd1b2ec2b81937b/FLAG48ea4fa31 [2018-12-03 05:44:55,178 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_97017beb-989e-4953-a741-c9282b8200d3/bin-2019/utaipan/data/42ec4fc3c/a981f83f97ac4df88cd1b2ec2b81937b [2018-12-03 05:44:55,180 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 05:44:55,181 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 05:44:55,181 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 05:44:55,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 05:44:55,183 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 05:44:55,184 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 05:44:55" (1/1) ... [2018-12-03 05:44:55,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fdfc843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:44:55, skipping insertion in model container [2018-12-03 05:44:55,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 05:44:55" (1/1) ... [2018-12-03 05:44:55,190 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 05:44:55,215 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 05:44:55,404 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 05:44:55,407 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 05:44:55,511 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 05:44:55,520 INFO L195 MainTranslator]: Completed translation [2018-12-03 05:44:55,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:44:55 WrapperNode [2018-12-03 05:44:55,520 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 05:44:55,521 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 05:44:55,521 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 05:44:55,521 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 05:44:55,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:44:55" (1/1) ... [2018-12-03 05:44:55,536 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:44:55" (1/1) ... [2018-12-03 05:44:55,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 05:44:55,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 05:44:55,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 05:44:55,541 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 05:44:55,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:44:55" (1/1) ... [2018-12-03 05:44:55,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:44:55" (1/1) ... [2018-12-03 05:44:55,550 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:44:55" (1/1) ... [2018-12-03 05:44:55,550 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:44:55" (1/1) ... [2018-12-03 05:44:55,567 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:44:55" (1/1) ... [2018-12-03 05:44:55,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:44:55" (1/1) ... [2018-12-03 05:44:55,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:44:55" (1/1) ... [2018-12-03 05:44:55,583 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 05:44:55,583 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 05:44:55,583 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 05:44:55,583 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 05:44:55,584 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:44:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_97017beb-989e-4953-a741-c9282b8200d3/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 [2018-12-03 05:44:55,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 05:44:55,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 05:44:55,622 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-12-03 05:44:55,622 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-12-03 05:44:55,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 05:44:55,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 05:44:55,623 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 05:44:55,623 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 05:44:56,328 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 05:44:56,328 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-03 05:44:56,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:44:56 BoogieIcfgContainer [2018-12-03 05:44:56,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 05:44:56,329 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 05:44:56,329 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 05:44:56,332 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 05:44:56,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 05:44:55" (1/3) ... [2018-12-03 05:44:56,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61d5c05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 05:44:56, skipping insertion in model container [2018-12-03 05:44:56,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:44:55" (2/3) ... [2018-12-03 05:44:56,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61d5c05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 05:44:56, skipping insertion in model container [2018-12-03 05:44:56,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:44:56" (3/3) ... [2018-12-03 05:44:56,335 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label45_true-unreach-call_false-termination.c [2018-12-03 05:44:56,344 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 05:44:56,351 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 05:44:56,365 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 05:44:56,386 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 05:44:56,386 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 05:44:56,386 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 05:44:56,386 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 05:44:56,387 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 05:44:56,387 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 05:44:56,387 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 05:44:56,387 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 05:44:56,402 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2018-12-03 05:44:56,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-12-03 05:44:56,406 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:44:56,407 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] [2018-12-03 05:44:56,408 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 05:44:56,411 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:44:56,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1020079963, now seen corresponding path program 1 times [2018-12-03 05:44:56,413 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 05:44:56,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:44:56,444 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:44:56,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:44:56,444 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 05:44:56,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:44:56,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 05:44:56,567 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 05:44:56,567 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-03 05:44:56,567 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 05:44:56,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-03 05:44:56,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-03 05:44:56,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-03 05:44:56,580 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 4 states. [2018-12-03 05:44:57,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:44:57,456 INFO L93 Difference]: Finished difference Result 890 states and 1606 transitions. [2018-12-03 05:44:57,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-03 05:44:57,457 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2018-12-03 05:44:57,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:44:57,466 INFO L225 Difference]: With dead ends: 890 [2018-12-03 05:44:57,467 INFO L226 Difference]: Without dead ends: 554 [2018-12-03 05:44:57,470 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 [2018-12-03 05:44:57,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2018-12-03 05:44:57,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 372. [2018-12-03 05:44:57,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2018-12-03 05:44:57,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 524 transitions. [2018-12-03 05:44:57,507 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 524 transitions. Word has length 42 [2018-12-03 05:44:57,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:44:57,508 INFO L480 AbstractCegarLoop]: Abstraction has 372 states and 524 transitions. [2018-12-03 05:44:57,508 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-03 05:44:57,508 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 524 transitions. [2018-12-03 05:44:57,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-12-03 05:44:57,510 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:44:57,510 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 05:44:57,511 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 05:44:57,511 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:44:57,511 INFO L82 PathProgramCache]: Analyzing trace with hash 2050989129, now seen corresponding path program 1 times [2018-12-03 05:44:57,511 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 05:44:57,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:44:57,512 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:44:57,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:44:57,512 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 05:44:57,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:44:57,598 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 05:44:57,599 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 05:44:57,599 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-03 05:44:57,599 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 05:44:57,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-03 05:44:57,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-03 05:44:57,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-03 05:44:57,600 INFO L87 Difference]: Start difference. First operand 372 states and 524 transitions. Second operand 4 states. [2018-12-03 05:44:58,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:44:58,286 INFO L93 Difference]: Finished difference Result 1466 states and 2091 transitions. [2018-12-03 05:44:58,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-03 05:44:58,287 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 125 [2018-12-03 05:44:58,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:44:58,289 INFO L225 Difference]: With dead ends: 1466 [2018-12-03 05:44:58,290 INFO L226 Difference]: Without dead ends: 736 [2018-12-03 05:44:58,291 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 [2018-12-03 05:44:58,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2018-12-03 05:44:58,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 554. [2018-12-03 05:44:58,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2018-12-03 05:44:58,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 809 transitions. [2018-12-03 05:44:58,306 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 809 transitions. Word has length 125 [2018-12-03 05:44:58,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:44:58,306 INFO L480 AbstractCegarLoop]: Abstraction has 554 states and 809 transitions. [2018-12-03 05:44:58,306 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-03 05:44:58,306 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 809 transitions. [2018-12-03 05:44:58,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-12-03 05:44:58,308 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:44:58,308 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 05:44:58,308 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 05:44:58,308 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:44:58,308 INFO L82 PathProgramCache]: Analyzing trace with hash 488627185, now seen corresponding path program 1 times [2018-12-03 05:44:58,308 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 05:44:58,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:44:58,309 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:44:58,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:44:58,309 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 05:44:58,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:44:58,360 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 05:44:58,360 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 05:44:58,361 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-03 05:44:58,361 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 05:44:58,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-03 05:44:58,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-03 05:44:58,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-03 05:44:58,361 INFO L87 Difference]: Start difference. First operand 554 states and 809 transitions. Second operand 4 states. [2018-12-03 05:44:59,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:44:59,076 INFO L93 Difference]: Finished difference Result 2194 states and 3264 transitions. [2018-12-03 05:44:59,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-03 05:44:59,076 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 137 [2018-12-03 05:44:59,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:44:59,080 INFO L225 Difference]: With dead ends: 2194 [2018-12-03 05:44:59,080 INFO L226 Difference]: Without dead ends: 1646 [2018-12-03 05:44:59,081 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 [2018-12-03 05:44:59,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2018-12-03 05:44:59,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1646. [2018-12-03 05:44:59,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1646 states. [2018-12-03 05:44:59,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 2286 transitions. [2018-12-03 05:44:59,109 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 2286 transitions. Word has length 137 [2018-12-03 05:44:59,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:44:59,110 INFO L480 AbstractCegarLoop]: Abstraction has 1646 states and 2286 transitions. [2018-12-03 05:44:59,110 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-03 05:44:59,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 2286 transitions. [2018-12-03 05:44:59,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2018-12-03 05:44:59,114 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:44:59,114 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, 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] [2018-12-03 05:44:59,114 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 05:44:59,114 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:44:59,114 INFO L82 PathProgramCache]: Analyzing trace with hash -1957605909, now seen corresponding path program 1 times [2018-12-03 05:44:59,115 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 05:44:59,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:44:59,115 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:44:59,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:44:59,115 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 05:44:59,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:44:59,240 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 163 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 05:44:59,240 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 05:44:59,240 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 05:44:59,241 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 257 with the following transitions: [2018-12-03 05:44:59,242 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], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [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], [598], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [694], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 05:44:59,268 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 05:44:59,269 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 05:44:59,468 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-03 05:44:59,469 INFO L272 AbstractInterpreter]: Visited 124 different actions 124 times. Never merged. Never widened. Performed 1129 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1129 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 24 variables. [2018-12-03 05:44:59,473 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:44:59,473 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-03 05:44:59,699 INFO L227 lantSequenceWeakener]: Weakened 247 states. On average, predicates are now at 77.72% of their original sizes. [2018-12-03 05:44:59,699 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-03 05:44:59,736 INFO L418 sIntCurrentIteration]: We unified 255 AI predicates to 255 [2018-12-03 05:44:59,737 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-03 05:44:59,737 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-03 05:44:59,738 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-12-03 05:44:59,738 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 05:44:59,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-03 05:44:59,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-03 05:44:59,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-03 05:44:59,739 INFO L87 Difference]: Start difference. First operand 1646 states and 2286 transitions. Second operand 6 states. [2018-12-03 05:45:09,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:45:09,402 INFO L93 Difference]: Finished difference Result 3105 states and 4347 transitions. [2018-12-03 05:45:09,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-03 05:45:09,402 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 256 [2018-12-03 05:45:09,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:45:09,405 INFO L225 Difference]: With dead ends: 3105 [2018-12-03 05:45:09,405 INFO L226 Difference]: Without dead ends: 1647 [2018-12-03 05:45:09,407 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 256 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-03 05:45:09,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2018-12-03 05:45:09,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1646. [2018-12-03 05:45:09,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1646 states. [2018-12-03 05:45:09,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 2254 transitions. [2018-12-03 05:45:09,427 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 2254 transitions. Word has length 256 [2018-12-03 05:45:09,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:45:09,427 INFO L480 AbstractCegarLoop]: Abstraction has 1646 states and 2254 transitions. [2018-12-03 05:45:09,427 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-03 05:45:09,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 2254 transitions. [2018-12-03 05:45:09,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2018-12-03 05:45:09,430 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:45:09,431 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, 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, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 05:45:09,431 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 05:45:09,431 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:45:09,431 INFO L82 PathProgramCache]: Analyzing trace with hash 453969074, now seen corresponding path program 1 times [2018-12-03 05:45:09,431 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 05:45:09,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:45:09,432 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:45:09,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:45:09,432 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 05:45:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:45:09,809 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 191 proven. 173 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-03 05:45:09,809 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 05:45:09,810 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 05:45:09,810 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 341 with the following transitions: [2018-12-03 05:45:09,810 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], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [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], [598], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [694], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 05:45:09,812 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 05:45:09,813 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 05:45:09,940 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-03 05:45:09,940 INFO L272 AbstractInterpreter]: Visited 128 different actions 249 times. Merged at 3 different actions 3 times. Never widened. Performed 2341 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2341 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-12-03 05:45:09,943 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:45:09,943 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-03 05:45:10,156 INFO L227 lantSequenceWeakener]: Weakened 337 states. On average, predicates are now at 77.66% of their original sizes. [2018-12-03 05:45:10,156 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-03 05:45:10,197 INFO L418 sIntCurrentIteration]: We unified 339 AI predicates to 339 [2018-12-03 05:45:10,197 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-03 05:45:10,197 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-03 05:45:10,197 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 20 [2018-12-03 05:45:10,197 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 05:45:10,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-03 05:45:10,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-03 05:45:10,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-03 05:45:10,198 INFO L87 Difference]: Start difference. First operand 1646 states and 2254 transitions. Second operand 10 states. [2018-12-03 05:45:44,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:45:44,021 INFO L93 Difference]: Finished difference Result 3502 states and 4775 transitions. [2018-12-03 05:45:44,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-03 05:45:44,021 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 340 [2018-12-03 05:45:44,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:45:44,024 INFO L225 Difference]: With dead ends: 3502 [2018-12-03 05:45:44,024 INFO L226 Difference]: Without dead ends: 1829 [2018-12-03 05:45:44,026 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 348 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-12-03 05:45:44,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1829 states. [2018-12-03 05:45:44,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1829 to 1828. [2018-12-03 05:45:44,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1828 states. [2018-12-03 05:45:44,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1828 states to 1828 states and 2447 transitions. [2018-12-03 05:45:44,046 INFO L78 Accepts]: Start accepts. Automaton has 1828 states and 2447 transitions. Word has length 340 [2018-12-03 05:45:44,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:45:44,046 INFO L480 AbstractCegarLoop]: Abstraction has 1828 states and 2447 transitions. [2018-12-03 05:45:44,046 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-03 05:45:44,047 INFO L276 IsEmpty]: Start isEmpty. Operand 1828 states and 2447 transitions. [2018-12-03 05:45:44,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2018-12-03 05:45:44,050 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:45:44,050 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, 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, 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] [2018-12-03 05:45:44,050 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 05:45:44,051 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:45:44,051 INFO L82 PathProgramCache]: Analyzing trace with hash 501990874, now seen corresponding path program 1 times [2018-12-03 05:45:44,051 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 05:45:44,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:45:44,051 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:45:44,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:45:44,052 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 05:45:44,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:45:44,245 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 241 proven. 124 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-12-03 05:45:44,245 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 05:45:44,246 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 05:45:44,246 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 381 with the following transitions: [2018-12-03 05:45:44,246 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], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [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], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [694], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 05:45:44,248 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 05:45:44,248 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 05:45:47,465 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-03 05:45:47,465 INFO L272 AbstractInterpreter]: Visited 128 different actions 377 times. Merged at 6 different actions 13 times. Never widened. Performed 3650 root evaluator evaluations with a maximum evaluation depth of 21. Performed 3650 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-12-03 05:45:47,466 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:45:47,466 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-03 05:45:48,044 INFO L227 lantSequenceWeakener]: Weakened 377 states. On average, predicates are now at 80.27% of their original sizes. [2018-12-03 05:45:48,044 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-03 05:45:48,071 INFO L418 sIntCurrentIteration]: We unified 379 AI predicates to 379 [2018-12-03 05:45:48,072 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-03 05:45:48,072 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-03 05:45:48,072 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2018-12-03 05:45:48,072 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 05:45:48,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-03 05:45:48,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-03 05:45:48,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-03 05:45:48,073 INFO L87 Difference]: Start difference. First operand 1828 states and 2447 transitions. Second operand 9 states. [2018-12-03 05:45:58,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:45:58,604 INFO L93 Difference]: Finished difference Result 4228 states and 5814 transitions. [2018-12-03 05:45:58,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-03 05:45:58,605 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 380 [2018-12-03 05:45:58,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:45:58,609 INFO L225 Difference]: With dead ends: 4228 [2018-12-03 05:45:58,609 INFO L226 Difference]: Without dead ends: 2588 [2018-12-03 05:45:58,610 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 386 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2018-12-03 05:45:58,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2588 states. [2018-12-03 05:45:58,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2588 to 2574. [2018-12-03 05:45:58,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2574 states. [2018-12-03 05:45:58,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2574 states to 2574 states and 3373 transitions. [2018-12-03 05:45:58,638 INFO L78 Accepts]: Start accepts. Automaton has 2574 states and 3373 transitions. Word has length 380 [2018-12-03 05:45:58,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:45:58,639 INFO L480 AbstractCegarLoop]: Abstraction has 2574 states and 3373 transitions. [2018-12-03 05:45:58,639 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-03 05:45:58,639 INFO L276 IsEmpty]: Start isEmpty. Operand 2574 states and 3373 transitions. [2018-12-03 05:45:58,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2018-12-03 05:45:58,644 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:45:58,644 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, 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, 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] [2018-12-03 05:45:58,644 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 05:45:58,644 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:45:58,644 INFO L82 PathProgramCache]: Analyzing trace with hash -1385945670, now seen corresponding path program 1 times [2018-12-03 05:45:58,644 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 05:45:58,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:45:58,645 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:45:58,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:45:58,645 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 05:45:58,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:45:59,048 INFO L134 CoverageAnalysis]: Checked inductivity of 659 backedges. 318 proven. 233 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2018-12-03 05:45:59,048 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 05:45:59,048 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 05:45:59,048 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 440 with the following transitions: [2018-12-03 05:45:59,049 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], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [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], [598], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [694], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 05:45:59,050 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 05:45:59,050 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 05:45:59,164 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-03 05:45:59,164 INFO L272 AbstractInterpreter]: Visited 129 different actions 252 times. Merged at 4 different actions 4 times. Never widened. Performed 2331 root evaluator evaluations with a maximum evaluation depth of 16. Performed 2331 inverse root evaluator evaluations with a maximum inverse evaluation depth of 16. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-12-03 05:45:59,167 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:45:59,167 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-03 05:45:59,370 INFO L227 lantSequenceWeakener]: Weakened 436 states. On average, predicates are now at 77.59% of their original sizes. [2018-12-03 05:45:59,370 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-03 05:45:59,414 INFO L418 sIntCurrentIteration]: We unified 438 AI predicates to 438 [2018-12-03 05:45:59,414 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-03 05:45:59,414 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-03 05:45:59,414 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 22 [2018-12-03 05:45:59,414 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 05:45:59,415 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-03 05:45:59,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-03 05:45:59,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-03 05:45:59,415 INFO L87 Difference]: Start difference. First operand 2574 states and 3373 transitions. Second operand 10 states. [2018-12-03 05:46:13,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:46:13,126 INFO L93 Difference]: Finished difference Result 4778 states and 6365 transitions. [2018-12-03 05:46:13,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-03 05:46:13,126 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 439 [2018-12-03 05:46:13,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:46:13,129 INFO L225 Difference]: With dead ends: 4778 [2018-12-03 05:46:13,130 INFO L226 Difference]: Without dead ends: 2576 [2018-12-03 05:46:13,131 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 446 GetRequests, 430 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-12-03 05:46:13,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2576 states. [2018-12-03 05:46:13,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2576 to 2574. [2018-12-03 05:46:13,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2574 states. [2018-12-03 05:46:13,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2574 states to 2574 states and 3365 transitions. [2018-12-03 05:46:13,157 INFO L78 Accepts]: Start accepts. Automaton has 2574 states and 3365 transitions. Word has length 439 [2018-12-03 05:46:13,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:46:13,157 INFO L480 AbstractCegarLoop]: Abstraction has 2574 states and 3365 transitions. [2018-12-03 05:46:13,158 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-03 05:46:13,158 INFO L276 IsEmpty]: Start isEmpty. Operand 2574 states and 3365 transitions. [2018-12-03 05:46:13,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2018-12-03 05:46:13,160 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:46:13,160 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, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 05:46:13,161 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 05:46:13,161 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:46:13,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1323887270, now seen corresponding path program 1 times [2018-12-03 05:46:13,161 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 05:46:13,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:46:13,162 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:46:13,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:46:13,162 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 05:46:13,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:46:13,308 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 436 proven. 2 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2018-12-03 05:46:13,308 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 05:46:13,308 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 05:46:13,308 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 454 with the following transitions: [2018-12-03 05:46:13,309 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], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [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], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [694], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 05:46:13,310 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 05:46:13,310 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 05:46:17,124 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 05:46:17,125 INFO L272 AbstractInterpreter]: Visited 130 different actions 513 times. Merged at 8 different actions 26 times. Never widened. Performed 5130 root evaluator evaluations with a maximum evaluation depth of 21. Performed 5130 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 7 fixpoints after 2 different actions. Largest state had 24 variables. [2018-12-03 05:46:17,127 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:46:17,127 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 05:46:17,127 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 05:46:17,127 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_97017beb-989e-4953-a741-c9282b8200d3/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 [2018-12-03 05:46:17,133 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:46:17,133 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 05:46:17,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:46:17,210 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 05:46:17,308 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 436 proven. 2 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2018-12-03 05:46:17,308 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 05:46:17,435 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 436 proven. 2 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2018-12-03 05:46:17,450 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 05:46:17,450 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-12-03 05:46:17,450 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 05:46:17,451 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-03 05:46:17,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-03 05:46:17,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-12-03 05:46:17,451 INFO L87 Difference]: Start difference. First operand 2574 states and 3365 transitions. Second operand 9 states. [2018-12-03 05:46:18,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:46:18,503 INFO L93 Difference]: Finished difference Result 6594 states and 9337 transitions. [2018-12-03 05:46:18,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-03 05:46:18,504 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 453 [2018-12-03 05:46:18,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:46:18,519 INFO L225 Difference]: With dead ends: 6594 [2018-12-03 05:46:18,519 INFO L226 Difference]: Without dead ends: 4392 [2018-12-03 05:46:18,523 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 923 GetRequests, 907 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2018-12-03 05:46:18,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4392 states. [2018-12-03 05:46:18,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4392 to 3378. [2018-12-03 05:46:18,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3378 states. [2018-12-03 05:46:18,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3378 states to 3378 states and 4444 transitions. [2018-12-03 05:46:18,586 INFO L78 Accepts]: Start accepts. Automaton has 3378 states and 4444 transitions. Word has length 453 [2018-12-03 05:46:18,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:46:18,586 INFO L480 AbstractCegarLoop]: Abstraction has 3378 states and 4444 transitions. [2018-12-03 05:46:18,586 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-03 05:46:18,586 INFO L276 IsEmpty]: Start isEmpty. Operand 3378 states and 4444 transitions. [2018-12-03 05:46:18,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2018-12-03 05:46:18,590 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:46:18,590 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, 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, 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] [2018-12-03 05:46:18,590 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 05:46:18,590 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:46:18,591 INFO L82 PathProgramCache]: Analyzing trace with hash -1301052626, now seen corresponding path program 1 times [2018-12-03 05:46:18,591 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 05:46:18,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:46:18,591 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:46:18,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:46:18,591 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 05:46:18,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:46:18,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 330 proven. 136 refuted. 0 times theorem prover too weak. 598 trivial. 0 not checked. [2018-12-03 05:46:18,798 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 05:46:18,798 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 05:46:18,798 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 545 with the following transitions: [2018-12-03 05:46:18,798 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], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [494], [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], [598], [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], [694], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 05:46:18,800 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 05:46:18,800 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 05:46:22,487 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 05:46:22,487 INFO L272 AbstractInterpreter]: Visited 131 different actions 516 times. Merged at 8 different actions 25 times. Never widened. Performed 5156 root evaluator evaluations with a maximum evaluation depth of 21. Performed 5156 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 8 fixpoints after 5 different actions. Largest state had 24 variables. [2018-12-03 05:46:22,489 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:46:22,489 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 05:46:22,489 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 05:46:22,489 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_97017beb-989e-4953-a741-c9282b8200d3/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 [2018-12-03 05:46:22,495 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:46:22,495 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 05:46:22,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:46:22,563 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 05:46:22,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 789 proven. 2 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2018-12-03 05:46:22,655 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 05:46:22,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 330 proven. 136 refuted. 0 times theorem prover too weak. 598 trivial. 0 not checked. [2018-12-03 05:46:22,815 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 05:46:22,815 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 12 [2018-12-03 05:46:22,815 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 05:46:22,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-03 05:46:22,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-03 05:46:22,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-12-03 05:46:22,816 INFO L87 Difference]: Start difference. First operand 3378 states and 4444 transitions. Second operand 10 states. [2018-12-03 05:46:23,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:46:23,852 INFO L93 Difference]: Finished difference Result 7562 states and 10143 transitions. [2018-12-03 05:46:23,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-03 05:46:23,853 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 544 [2018-12-03 05:46:23,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:46:23,862 INFO L225 Difference]: With dead ends: 7562 [2018-12-03 05:46:23,862 INFO L226 Difference]: Without dead ends: 4368 [2018-12-03 05:46:23,866 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1124 GetRequests, 1098 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=192, Invalid=458, Unknown=0, NotChecked=0, Total=650 [2018-12-03 05:46:23,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4368 states. [2018-12-03 05:46:23,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4368 to 4176. [2018-12-03 05:46:23,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4176 states. [2018-12-03 05:46:23,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4176 states to 4176 states and 5313 transitions. [2018-12-03 05:46:23,914 INFO L78 Accepts]: Start accepts. Automaton has 4176 states and 5313 transitions. Word has length 544 [2018-12-03 05:46:23,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:46:23,915 INFO L480 AbstractCegarLoop]: Abstraction has 4176 states and 5313 transitions. [2018-12-03 05:46:23,915 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-03 05:46:23,915 INFO L276 IsEmpty]: Start isEmpty. Operand 4176 states and 5313 transitions. [2018-12-03 05:46:23,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2018-12-03 05:46:23,918 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:46:23,919 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, 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, 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] [2018-12-03 05:46:23,919 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 05:46:23,919 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:46:23,919 INFO L82 PathProgramCache]: Analyzing trace with hash 642600657, now seen corresponding path program 1 times [2018-12-03 05:46:23,919 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 05:46:23,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:46:23,920 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:46:23,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:46:23,920 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 05:46:23,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:46:24,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1076 backedges. 471 proven. 427 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2018-12-03 05:46:24,442 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 05:46:24,442 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 05:46:24,442 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 548 with the following transitions: [2018-12-03 05:46:24,442 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], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [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], [598], [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], [694], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 05:46:24,444 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 05:46:24,444 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 05:46:28,149 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 05:46:28,149 INFO L272 AbstractInterpreter]: Visited 131 different actions 521 times. Merged at 9 different actions 30 times. Never widened. Performed 5182 root evaluator evaluations with a maximum evaluation depth of 21. Performed 5182 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 8 fixpoints after 3 different actions. Largest state had 24 variables. [2018-12-03 05:46:28,151 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:46:28,151 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 05:46:28,151 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 05:46:28,151 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_97017beb-989e-4953-a741-c9282b8200d3/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 [2018-12-03 05:46:28,157 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:46:28,157 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 05:46:28,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:46:28,218 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 05:46:28,317 INFO L134 CoverageAnalysis]: Checked inductivity of 1076 backedges. 568 proven. 2 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2018-12-03 05:46:28,318 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 05:46:28,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1076 backedges. 568 proven. 2 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2018-12-03 05:46:28,478 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 05:46:28,479 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 19 [2018-12-03 05:46:28,479 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 05:46:28,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-12-03 05:46:28,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-12-03 05:46:28,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2018-12-03 05:46:28,480 INFO L87 Difference]: Start difference. First operand 4176 states and 5313 transitions. Second operand 17 states. [2018-12-03 05:46:30,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:46:30,745 INFO L93 Difference]: Finished difference Result 7611 states and 10052 transitions. [2018-12-03 05:46:30,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-12-03 05:46:30,746 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 547 [2018-12-03 05:46:30,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:46:30,754 INFO L225 Difference]: With dead ends: 7611 [2018-12-03 05:46:30,755 INFO L226 Difference]: Without dead ends: 2737 [2018-12-03 05:46:30,764 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1173 GetRequests, 1112 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1086 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=819, Invalid=2963, Unknown=0, NotChecked=0, Total=3782 [2018-12-03 05:46:30,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2737 states. [2018-12-03 05:46:30,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2737 to 2618. [2018-12-03 05:46:30,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2618 states. [2018-12-03 05:46:30,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2618 states to 2618 states and 2775 transitions. [2018-12-03 05:46:30,809 INFO L78 Accepts]: Start accepts. Automaton has 2618 states and 2775 transitions. Word has length 547 [2018-12-03 05:46:30,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:46:30,810 INFO L480 AbstractCegarLoop]: Abstraction has 2618 states and 2775 transitions. [2018-12-03 05:46:30,810 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-12-03 05:46:30,810 INFO L276 IsEmpty]: Start isEmpty. Operand 2618 states and 2775 transitions. [2018-12-03 05:46:30,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 677 [2018-12-03 05:46:30,816 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:46:30,816 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 05:46:30,816 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 05:46:30,816 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:46:30,816 INFO L82 PathProgramCache]: Analyzing trace with hash -142539850, now seen corresponding path program 1 times [2018-12-03 05:46:30,817 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 05:46:30,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:46:30,817 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:46:30,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:46:30,817 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 05:46:30,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:46:31,114 INFO L134 CoverageAnalysis]: Checked inductivity of 1294 backedges. 527 proven. 119 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2018-12-03 05:46:31,114 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 05:46:31,114 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 05:46:31,114 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 677 with the following transitions: [2018-12-03 05:46:31,115 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], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [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], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [694], [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], [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] [2018-12-03 05:46:31,116 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 05:46:31,116 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 05:46:34,861 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 05:46:34,862 INFO L272 AbstractInterpreter]: Visited 191 different actions 768 times. Merged at 9 different actions 37 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 9 fixpoints after 3 different actions. Largest state had 24 variables. [2018-12-03 05:46:34,864 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:46:34,864 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 05:46:34,864 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 05:46:34,864 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_97017beb-989e-4953-a741-c9282b8200d3/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 [2018-12-03 05:46:34,870 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:46:34,870 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 05:46:34,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:46:34,941 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 05:46:35,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1294 backedges. 934 proven. 2 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2018-12-03 05:46:35,077 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 05:46:35,316 INFO L134 CoverageAnalysis]: Checked inductivity of 1294 backedges. 527 proven. 119 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2018-12-03 05:46:35,340 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 05:46:35,340 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2018-12-03 05:46:35,340 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 05:46:35,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 05:46:35,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 05:46:35,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-12-03 05:46:35,341 INFO L87 Difference]: Start difference. First operand 2618 states and 2775 transitions. Second operand 7 states. [2018-12-03 05:46:36,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:46:36,011 INFO L93 Difference]: Finished difference Result 5910 states and 6668 transitions. [2018-12-03 05:46:36,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-03 05:46:36,012 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 676 [2018-12-03 05:46:36,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:46:36,019 INFO L225 Difference]: With dead ends: 5910 [2018-12-03 05:46:36,019 INFO L226 Difference]: Without dead ends: 3664 [2018-12-03 05:46:36,022 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1366 GetRequests, 1353 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2018-12-03 05:46:36,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3664 states. [2018-12-03 05:46:36,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3664 to 3556. [2018-12-03 05:46:36,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3556 states. [2018-12-03 05:46:36,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3556 states to 3556 states and 3814 transitions. [2018-12-03 05:46:36,059 INFO L78 Accepts]: Start accepts. Automaton has 3556 states and 3814 transitions. Word has length 676 [2018-12-03 05:46:36,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:46:36,060 INFO L480 AbstractCegarLoop]: Abstraction has 3556 states and 3814 transitions. [2018-12-03 05:46:36,060 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 05:46:36,060 INFO L276 IsEmpty]: Start isEmpty. Operand 3556 states and 3814 transitions. [2018-12-03 05:46:36,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 803 [2018-12-03 05:46:36,064 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:46:36,065 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 05:46:36,065 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 05:46:36,065 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:46:36,065 INFO L82 PathProgramCache]: Analyzing trace with hash -39341501, now seen corresponding path program 1 times [2018-12-03 05:46:36,065 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 05:46:36,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:46:36,066 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:46:36,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:46:36,066 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 05:46:36,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:46:37,099 INFO L134 CoverageAnalysis]: Checked inductivity of 1896 backedges. 571 proven. 883 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2018-12-03 05:46:37,099 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 05:46:37,099 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 05:46:37,100 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 803 with the following transitions: [2018-12-03 05:46:37,100 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], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [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], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [694], [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], [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] [2018-12-03 05:46:37,102 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 05:46:37,102 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 05:46:40,854 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 05:46:40,854 INFO L272 AbstractInterpreter]: Visited 191 different actions 764 times. Merged at 9 different actions 33 times. Widened at 1 different actions 1 times. Performed 8409 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8409 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 9 fixpoints after 4 different actions. Largest state had 24 variables. [2018-12-03 05:46:40,855 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:46:40,855 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 05:46:40,855 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 05:46:40,855 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_97017beb-989e-4953-a741-c9282b8200d3/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 [2018-12-03 05:46:40,861 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:46:40,861 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 05:46:40,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:46:40,952 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 05:46:41,349 INFO L134 CoverageAnalysis]: Checked inductivity of 1896 backedges. 1210 proven. 2 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2018-12-03 05:46:41,349 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 05:46:41,732 INFO L134 CoverageAnalysis]: Checked inductivity of 1896 backedges. 695 proven. 119 refuted. 0 times theorem prover too weak. 1082 trivial. 0 not checked. [2018-12-03 05:46:41,747 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 05:46:41,747 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 6, 6] total 20 [2018-12-03 05:46:41,747 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 05:46:41,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-12-03 05:46:41,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-12-03 05:46:41,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2018-12-03 05:46:41,748 INFO L87 Difference]: Start difference. First operand 3556 states and 3814 transitions. Second operand 18 states. [2018-12-03 05:46:43,757 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2018-12-03 05:46:44,198 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2018-12-03 05:46:44,956 WARN L180 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2018-12-03 05:46:45,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:46:45,409 INFO L93 Difference]: Finished difference Result 7528 states and 8176 transitions. [2018-12-03 05:46:45,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-12-03 05:46:45,410 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 802 [2018-12-03 05:46:45,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:46:45,425 INFO L225 Difference]: With dead ends: 7528 [2018-12-03 05:46:45,425 INFO L226 Difference]: Without dead ends: 4344 [2018-12-03 05:46:45,431 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1678 GetRequests, 1620 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 869 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=706, Invalid=2716, Unknown=0, NotChecked=0, Total=3422 [2018-12-03 05:46:45,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4344 states. [2018-12-03 05:46:45,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4344 to 4122. [2018-12-03 05:46:45,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4122 states. [2018-12-03 05:46:45,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4122 states to 4122 states and 4422 transitions. [2018-12-03 05:46:45,487 INFO L78 Accepts]: Start accepts. Automaton has 4122 states and 4422 transitions. Word has length 802 [2018-12-03 05:46:45,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:46:45,488 INFO L480 AbstractCegarLoop]: Abstraction has 4122 states and 4422 transitions. [2018-12-03 05:46:45,488 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-12-03 05:46:45,488 INFO L276 IsEmpty]: Start isEmpty. Operand 4122 states and 4422 transitions. [2018-12-03 05:46:45,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 836 [2018-12-03 05:46:45,492 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:46:45,492 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, 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, 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, 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] [2018-12-03 05:46:45,492 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 05:46:45,492 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:46:45,492 INFO L82 PathProgramCache]: Analyzing trace with hash 733851430, now seen corresponding path program 1 times [2018-12-03 05:46:45,492 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 05:46:45,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:46:45,493 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:46:45,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:46:45,493 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 05:46:45,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:46:46,974 INFO L134 CoverageAnalysis]: Checked inductivity of 1943 backedges. 771 proven. 841 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2018-12-03 05:46:46,974 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 05:46:46,974 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 05:46:46,974 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 836 with the following transitions: [2018-12-03 05:46:46,974 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], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [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], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [694], [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], [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] [2018-12-03 05:46:46,976 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 05:46:46,977 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 05:46:50,728 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 05:46:50,728 INFO L272 AbstractInterpreter]: Visited 192 different actions 766 times. Merged at 9 different actions 31 times. Never widened. Performed 8449 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8449 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 11 fixpoints after 3 different actions. Largest state had 24 variables. [2018-12-03 05:46:50,729 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:46:50,729 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 05:46:50,729 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 05:46:50,729 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_97017beb-989e-4953-a741-c9282b8200d3/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 [2018-12-03 05:46:50,736 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:46:50,736 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 05:46:50,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:46:50,823 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 05:46:51,034 INFO L134 CoverageAnalysis]: Checked inductivity of 1943 backedges. 1250 proven. 2 refuted. 0 times theorem prover too weak. 691 trivial. 0 not checked. [2018-12-03 05:46:51,035 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 05:46:51,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1943 backedges. 728 proven. 119 refuted. 0 times theorem prover too weak. 1096 trivial. 0 not checked. [2018-12-03 05:46:51,378 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 05:46:51,378 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 5, 5] total 22 [2018-12-03 05:46:51,378 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 05:46:51,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-12-03 05:46:51,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-12-03 05:46:51,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2018-12-03 05:46:51,379 INFO L87 Difference]: Start difference. First operand 4122 states and 4422 transitions. Second operand 20 states. [2018-12-03 05:46:52,830 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 28 [2018-12-03 05:46:53,079 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 22 [2018-12-03 05:46:54,728 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 31 [2018-12-03 05:46:55,334 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 30 [2018-12-03 05:46:56,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:46:56,531 INFO L93 Difference]: Finished difference Result 7908 states and 8564 transitions. [2018-12-03 05:46:56,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2018-12-03 05:46:56,532 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 835 [2018-12-03 05:46:56,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:46:56,539 INFO L225 Difference]: With dead ends: 7908 [2018-12-03 05:46:56,539 INFO L226 Difference]: Without dead ends: 3976 [2018-12-03 05:46:56,543 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1779 GetRequests, 1705 SyntacticMatches, 5 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1389 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=823, Invalid=4147, Unknown=0, NotChecked=0, Total=4970 [2018-12-03 05:46:56,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3976 states. [2018-12-03 05:46:56,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3976 to 3920. [2018-12-03 05:46:56,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3920 states. [2018-12-03 05:46:56,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 4127 transitions. [2018-12-03 05:46:56,573 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 4127 transitions. Word has length 835 [2018-12-03 05:46:56,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:46:56,574 INFO L480 AbstractCegarLoop]: Abstraction has 3920 states and 4127 transitions. [2018-12-03 05:46:56,574 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-12-03 05:46:56,574 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 4127 transitions. [2018-12-03 05:46:56,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1009 [2018-12-03 05:46:56,580 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:46:56,580 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, 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, 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, 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] [2018-12-03 05:46:56,580 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 05:46:56,580 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:46:56,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1300355757, now seen corresponding path program 1 times [2018-12-03 05:46:56,580 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 05:46:56,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:46:56,581 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:46:56,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:46:56,581 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 05:46:56,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:46:58,101 INFO L134 CoverageAnalysis]: Checked inductivity of 3037 backedges. 665 proven. 1393 refuted. 0 times theorem prover too weak. 979 trivial. 0 not checked. [2018-12-03 05:46:58,101 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 05:46:58,101 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 05:46:58,101 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1009 with the following transitions: [2018-12-03 05:46:58,101 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], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [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], [694], [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], [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] [2018-12-03 05:46:58,103 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 05:46:58,103 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 05:47:01,858 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 05:47:01,858 INFO L272 AbstractInterpreter]: Visited 194 different actions 774 times. Merged at 10 different actions 31 times. Never widened. Performed 8559 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8559 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 14 fixpoints after 6 different actions. Largest state had 24 variables. [2018-12-03 05:47:01,860 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:47:01,860 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 05:47:01,860 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 05:47:01,860 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_97017beb-989e-4953-a741-c9282b8200d3/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 [2018-12-03 05:47:01,867 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:47:01,867 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 05:47:01,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:47:01,967 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 05:47:02,296 INFO L134 CoverageAnalysis]: Checked inductivity of 3037 backedges. 1025 proven. 2 refuted. 0 times theorem prover too weak. 2010 trivial. 0 not checked. [2018-12-03 05:47:02,297 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 05:47:03,142 INFO L134 CoverageAnalysis]: Checked inductivity of 3037 backedges. 1025 proven. 2 refuted. 0 times theorem prover too weak. 2010 trivial. 0 not checked. [2018-12-03 05:47:03,157 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 05:47:03,158 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 5, 5] total 20 [2018-12-03 05:47:03,158 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 05:47:03,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-12-03 05:47:03,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-12-03 05:47:03,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2018-12-03 05:47:03,159 INFO L87 Difference]: Start difference. First operand 3920 states and 4127 transitions. Second operand 18 states. [2018-12-03 05:47:05,464 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 27 [2018-12-03 05:47:05,735 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2018-12-03 05:47:06,061 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 32 [2018-12-03 05:47:06,516 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2018-12-03 05:47:07,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:47:07,437 INFO L93 Difference]: Finished difference Result 7698 states and 8157 transitions. [2018-12-03 05:47:07,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-12-03 05:47:07,437 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 1008 [2018-12-03 05:47:07,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:47:07,444 INFO L225 Difference]: With dead ends: 7698 [2018-12-03 05:47:07,444 INFO L226 Difference]: Without dead ends: 3764 [2018-12-03 05:47:07,449 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2090 GetRequests, 2032 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 908 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=643, Invalid=2779, Unknown=0, NotChecked=0, Total=3422 [2018-12-03 05:47:07,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3764 states. [2018-12-03 05:47:07,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3764 to 3720. [2018-12-03 05:47:07,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3720 states. [2018-12-03 05:47:07,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3720 states to 3720 states and 3856 transitions. [2018-12-03 05:47:07,485 INFO L78 Accepts]: Start accepts. Automaton has 3720 states and 3856 transitions. Word has length 1008 [2018-12-03 05:47:07,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:47:07,485 INFO L480 AbstractCegarLoop]: Abstraction has 3720 states and 3856 transitions. [2018-12-03 05:47:07,485 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-12-03 05:47:07,485 INFO L276 IsEmpty]: Start isEmpty. Operand 3720 states and 3856 transitions. [2018-12-03 05:47:07,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1138 [2018-12-03 05:47:07,492 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:47:07,492 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, 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, 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, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-03 05:47:07,492 INFO L423 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 05:47:07,492 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:47:07,493 INFO L82 PathProgramCache]: Analyzing trace with hash 1908903455, now seen corresponding path program 1 times [2018-12-03 05:47:07,493 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 05:47:07,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:47:07,493 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:47:07,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:47:07,493 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 05:47:07,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:47:08,072 INFO L134 CoverageAnalysis]: Checked inductivity of 3950 backedges. 1648 proven. 355 refuted. 0 times theorem prover too weak. 1947 trivial. 0 not checked. [2018-12-03 05:47:08,072 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 05:47:08,072 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 05:47:08,073 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1138 with the following transitions: [2018-12-03 05:47:08,073 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], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [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], [667], [671], [675], [679], [683], [686], [687], [691], [694], [695], [699], [703], [707], [711], [715], [719], [723], [726], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [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] [2018-12-03 05:47:08,075 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 05:47:08,075 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 05:47:11,852 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 05:47:11,852 INFO L272 AbstractInterpreter]: Visited 195 different actions 783 times. Merged at 12 different actions 36 times. Never widened. Performed 8618 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8618 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 16 fixpoints after 4 different actions. Largest state had 24 variables. [2018-12-03 05:47:11,854 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:47:11,854 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 05:47:11,854 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 05:47:11,854 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_97017beb-989e-4953-a741-c9282b8200d3/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 [2018-12-03 05:47:11,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:47:11,860 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 05:47:11,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:47:11,981 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 05:47:12,383 INFO L134 CoverageAnalysis]: Checked inductivity of 3950 backedges. 2434 proven. 6 refuted. 0 times theorem prover too weak. 1510 trivial. 0 not checked. [2018-12-03 05:47:12,383 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 05:47:12,997 INFO L134 CoverageAnalysis]: Checked inductivity of 3950 backedges. 1648 proven. 359 refuted. 0 times theorem prover too weak. 1943 trivial. 0 not checked. [2018-12-03 05:47:13,013 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 05:47:13,014 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 14 [2018-12-03 05:47:13,014 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 05:47:13,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-03 05:47:13,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-03 05:47:13,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2018-12-03 05:47:13,015 INFO L87 Difference]: Start difference. First operand 3720 states and 3856 transitions. Second operand 9 states. [2018-12-03 05:47:13,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:47:13,710 INFO L93 Difference]: Finished difference Result 7664 states and 8001 transitions. [2018-12-03 05:47:13,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-03 05:47:13,710 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1137 [2018-12-03 05:47:13,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:47:13,716 INFO L225 Difference]: With dead ends: 7664 [2018-12-03 05:47:13,716 INFO L226 Difference]: Without dead ends: 4134 [2018-12-03 05:47:13,720 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2297 GetRequests, 2275 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2018-12-03 05:47:13,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4134 states. [2018-12-03 05:47:13,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4134 to 3904. [2018-12-03 05:47:13,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3904 states. [2018-12-03 05:47:13,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3904 states to 3904 states and 4044 transitions. [2018-12-03 05:47:13,758 INFO L78 Accepts]: Start accepts. Automaton has 3904 states and 4044 transitions. Word has length 1137 [2018-12-03 05:47:13,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:47:13,759 INFO L480 AbstractCegarLoop]: Abstraction has 3904 states and 4044 transitions. [2018-12-03 05:47:13,759 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-03 05:47:13,759 INFO L276 IsEmpty]: Start isEmpty. Operand 3904 states and 4044 transitions. [2018-12-03 05:47:13,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1386 [2018-12-03 05:47:13,768 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:47:13,769 INFO L402 BasicCegarLoop]: trace histogram [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, 12, 12, 12, 12, 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, 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, 7, 7, 7, 7, 7, 7, 7, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 05:47:13,769 INFO L423 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 05:47:13,769 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:47:13,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1054917965, now seen corresponding path program 1 times [2018-12-03 05:47:13,769 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 05:47:13,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:47:13,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:47:13,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:47:13,770 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 05:47:13,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:47:15,543 INFO L134 CoverageAnalysis]: Checked inductivity of 6102 backedges. 1295 proven. 3040 refuted. 0 times theorem prover too weak. 1767 trivial. 0 not checked. [2018-12-03 05:47:15,543 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 05:47:15,544 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 05:47:15,544 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1386 with the following transitions: [2018-12-03 05:47:15,544 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], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [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], [667], [671], [675], [679], [683], [686], [687], [690], [691], [694], [695], [699], [703], [707], [711], [715], [719], [723], [726], [727], [731], [735], [738], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [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] [2018-12-03 05:47:15,546 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 05:47:15,546 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 05:47:19,323 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 05:47:19,323 INFO L272 AbstractInterpreter]: Visited 197 different actions 792 times. Merged at 12 different actions 37 times. Widened at 1 different actions 1 times. Performed 8856 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8856 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 18 fixpoints after 9 different actions. Largest state had 24 variables. [2018-12-03 05:47:19,327 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:47:19,327 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 05:47:19,327 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 05:47:19,327 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_97017beb-989e-4953-a741-c9282b8200d3/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 [2018-12-03 05:47:19,333 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:47:19,333 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 05:47:19,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:47:19,469 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 05:47:20,070 INFO L134 CoverageAnalysis]: Checked inductivity of 6102 backedges. 3163 proven. 2 refuted. 0 times theorem prover too weak. 2937 trivial. 0 not checked. [2018-12-03 05:47:20,070 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 05:47:21,231 INFO L134 CoverageAnalysis]: Checked inductivity of 6102 backedges. 1339 proven. 244 refuted. 0 times theorem prover too weak. 4519 trivial. 0 not checked. [2018-12-03 05:47:21,246 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 05:47:21,247 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 5, 5] total 22 [2018-12-03 05:47:21,247 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 05:47:21,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-12-03 05:47:21,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-12-03 05:47:21,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2018-12-03 05:47:21,248 INFO L87 Difference]: Start difference. First operand 3904 states and 4044 transitions. Second operand 20 states. [2018-12-03 05:47:24,057 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 35 [2018-12-03 05:47:24,901 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 28 [2018-12-03 05:47:25,388 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 29 [2018-12-03 05:47:25,704 WARN L180 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 36 [2018-12-03 05:47:26,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:47:26,650 INFO L93 Difference]: Finished difference Result 8456 states and 9331 transitions. [2018-12-03 05:47:26,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2018-12-03 05:47:26,650 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 1385 [2018-12-03 05:47:26,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:47:26,666 INFO L225 Difference]: With dead ends: 8456 [2018-12-03 05:47:26,666 INFO L226 Difference]: Without dead ends: 4742 [2018-12-03 05:47:26,673 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2861 GetRequests, 2790 SyntacticMatches, 1 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1478 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=978, Invalid=4134, Unknown=0, NotChecked=0, Total=5112 [2018-12-03 05:47:26,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4742 states. [2018-12-03 05:47:26,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4742 to 3904. [2018-12-03 05:47:26,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3904 states. [2018-12-03 05:47:26,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3904 states to 3904 states and 4030 transitions. [2018-12-03 05:47:26,751 INFO L78 Accepts]: Start accepts. Automaton has 3904 states and 4030 transitions. Word has length 1385 [2018-12-03 05:47:26,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:47:26,752 INFO L480 AbstractCegarLoop]: Abstraction has 3904 states and 4030 transitions. [2018-12-03 05:47:26,752 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-12-03 05:47:26,752 INFO L276 IsEmpty]: Start isEmpty. Operand 3904 states and 4030 transitions. [2018-12-03 05:47:26,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1691 [2018-12-03 05:47:26,764 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:47:26,764 INFO L402 BasicCegarLoop]: trace histogram [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, 14, 14, 14, 14, 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, 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, 9, 9, 9, 8, 8, 8, 8, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2018-12-03 05:47:26,764 INFO L423 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 05:47:26,764 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:47:26,764 INFO L82 PathProgramCache]: Analyzing trace with hash 245384140, now seen corresponding path program 1 times [2018-12-03 05:47:26,764 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 05:47:26,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:47:26,765 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:47:26,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:47:26,765 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 05:47:26,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:47:30,045 INFO L134 CoverageAnalysis]: Checked inductivity of 8825 backedges. 1915 proven. 5275 refuted. 0 times theorem prover too weak. 1635 trivial. 0 not checked. [2018-12-03 05:47:30,045 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 05:47:30,045 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 05:47:30,045 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1691 with the following transitions: [2018-12-03 05:47:30,045 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], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [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], [667], [670], [671], [675], [679], [683], [686], [687], [690], [691], [694], [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], [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] [2018-12-03 05:47:30,047 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 05:47:30,047 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 05:47:33,846 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 05:47:33,846 INFO L272 AbstractInterpreter]: Visited 202 different actions 812 times. Merged at 11 different actions 37 times. Widened at 1 different actions 2 times. Performed 9123 root evaluator evaluations with a maximum evaluation depth of 21. Performed 9123 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 20 fixpoints after 11 different actions. Largest state had 24 variables. [2018-12-03 05:47:33,848 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:47:33,848 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 05:47:33,848 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 05:47:33,849 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_97017beb-989e-4953-a741-c9282b8200d3/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 [2018-12-03 05:47:33,855 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:47:33,855 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 05:47:34,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:47:34,022 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 05:47:34,845 INFO L134 CoverageAnalysis]: Checked inductivity of 8825 backedges. 2841 proven. 82 refuted. 0 times theorem prover too weak. 5902 trivial. 0 not checked. [2018-12-03 05:47:34,845 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 05:47:36,370 INFO L134 CoverageAnalysis]: Checked inductivity of 8825 backedges. 2915 proven. 121 refuted. 0 times theorem prover too weak. 5789 trivial. 0 not checked. [2018-12-03 05:47:36,386 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 05:47:36,387 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 8, 9] total 39 [2018-12-03 05:47:36,387 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 05:47:36,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-12-03 05:47:36,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-12-03 05:47:36,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=1312, Unknown=0, NotChecked=0, Total=1482 [2018-12-03 05:47:36,388 INFO L87 Difference]: Start difference. First operand 3904 states and 4030 transitions. Second operand 33 states. [2018-12-03 05:47:45,572 WARN L180 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 34 [2018-12-03 05:47:46,283 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 26 [2018-12-03 05:47:46,586 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 31 [2018-12-03 05:47:47,047 WARN L180 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 40 [2018-12-03 05:47:47,527 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 28 [2018-12-03 05:47:49,644 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 32 [2018-12-03 05:47:51,823 WARN L180 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 56 [2018-12-03 05:47:52,097 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 32 [2018-12-03 05:47:52,699 WARN L180 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 36 [2018-12-03 05:47:54,133 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 32 [2018-12-03 05:47:54,566 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 37 [2018-12-03 05:47:55,592 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 30 [2018-12-03 05:47:56,485 WARN L180 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 35 [2018-12-03 05:47:59,918 WARN L180 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2018-12-03 05:48:01,104 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 33 [2018-12-03 05:48:05,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:48:05,463 INFO L93 Difference]: Finished difference Result 8533 states and 8986 transitions. [2018-12-03 05:48:05,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2018-12-03 05:48:05,463 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 1690 [2018-12-03 05:48:05,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:48:05,471 INFO L225 Difference]: With dead ends: 8533 [2018-12-03 05:48:05,472 INFO L226 Difference]: Without dead ends: 4631 [2018-12-03 05:48:05,478 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3560 GetRequests, 3412 SyntacticMatches, 3 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6944 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=3414, Invalid=18048, Unknown=0, NotChecked=0, Total=21462 [2018-12-03 05:48:05,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4631 states. [2018-12-03 05:48:05,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4631 to 4090. [2018-12-03 05:48:05,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4090 states. [2018-12-03 05:48:05,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4090 states to 4090 states and 4188 transitions. [2018-12-03 05:48:05,524 INFO L78 Accepts]: Start accepts. Automaton has 4090 states and 4188 transitions. Word has length 1690 [2018-12-03 05:48:05,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:48:05,525 INFO L480 AbstractCegarLoop]: Abstraction has 4090 states and 4188 transitions. [2018-12-03 05:48:05,525 INFO L481 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-12-03 05:48:05,525 INFO L276 IsEmpty]: Start isEmpty. Operand 4090 states and 4188 transitions. [2018-12-03 05:48:05,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1943 [2018-12-03 05:48:05,539 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:48:05,540 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, 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, 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, 11, 11, 11, 10, 10, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 6, 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, 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] [2018-12-03 05:48:05,540 INFO L423 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 05:48:05,540 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:48:05,540 INFO L82 PathProgramCache]: Analyzing trace with hash 1961048688, now seen corresponding path program 1 times [2018-12-03 05:48:05,540 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 05:48:05,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:48:05,541 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:48:05,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:48:05,541 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 05:48:05,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:48:09,155 INFO L134 CoverageAnalysis]: Checked inductivity of 11966 backedges. 2511 proven. 6788 refuted. 0 times theorem prover too weak. 2667 trivial. 0 not checked. [2018-12-03 05:48:09,155 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 05:48:09,155 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 05:48:09,156 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1943 with the following transitions: [2018-12-03 05:48:09,156 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], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [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], [667], [670], [671], [675], [679], [683], [686], [687], [690], [691], [694], [695], [699], [703], [707], [711], [715], [718], [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], [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] [2018-12-03 05:48:09,158 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 05:48:09,158 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 05:48:12,944 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 05:48:12,944 INFO L272 AbstractInterpreter]: Visited 203 different actions 816 times. Merged at 11 different actions 37 times. Widened at 1 different actions 1 times. Performed 9193 root evaluator evaluations with a maximum evaluation depth of 21. Performed 9193 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 21 fixpoints after 12 different actions. Largest state had 24 variables. [2018-12-03 05:48:12,946 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:48:12,946 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 05:48:12,946 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 05:48:12,946 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_97017beb-989e-4953-a741-c9282b8200d3/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 [2018-12-03 05:48:12,953 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:48:12,954 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 05:48:13,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:48:13,144 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 05:48:15,136 WARN L180 SmtUtils]: Spent 897.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 25 [2018-12-03 05:48:16,108 INFO L134 CoverageAnalysis]: Checked inductivity of 11966 backedges. 5770 proven. 12 refuted. 0 times theorem prover too weak. 6184 trivial. 0 not checked. [2018-12-03 05:48:16,108 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 05:48:19,768 INFO L134 CoverageAnalysis]: Checked inductivity of 11966 backedges. 4301 proven. 718 refuted. 0 times theorem prover too weak. 6947 trivial. 0 not checked. [2018-12-03 05:48:19,785 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 05:48:19,785 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 9, 11] total 41 [2018-12-03 05:48:19,785 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 05:48:19,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-12-03 05:48:19,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-12-03 05:48:19,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=1447, Unknown=1, NotChecked=0, Total=1640 [2018-12-03 05:48:19,787 INFO L87 Difference]: Start difference. First operand 4090 states and 4188 transitions. Second operand 33 states. [2018-12-03 05:48:21,407 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 21 [2018-12-03 05:48:30,873 WARN L180 SmtUtils]: Spent 2.49 s on a formula simplification. DAG size of input: 79 DAG size of output: 42 [2018-12-03 05:48:40,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:48:40,378 INFO L93 Difference]: Finished difference Result 10131 states and 10674 transitions. [2018-12-03 05:48:40,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2018-12-03 05:48:40,378 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 1942 [2018-12-03 05:48:40,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:48:40,385 INFO L225 Difference]: With dead ends: 10131 [2018-12-03 05:48:40,385 INFO L226 Difference]: Without dead ends: 5845 [2018-12-03 05:48:40,390 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4076 GetRequests, 3917 SyntacticMatches, 3 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7789 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=3995, Invalid=20809, Unknown=2, NotChecked=0, Total=24806 [2018-12-03 05:48:40,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5845 states. [2018-12-03 05:48:40,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5845 to 4268. [2018-12-03 05:48:40,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4268 states. [2018-12-03 05:48:40,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4268 states to 4268 states and 4341 transitions. [2018-12-03 05:48:40,439 INFO L78 Accepts]: Start accepts. Automaton has 4268 states and 4341 transitions. Word has length 1942 [2018-12-03 05:48:40,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:48:40,440 INFO L480 AbstractCegarLoop]: Abstraction has 4268 states and 4341 transitions. [2018-12-03 05:48:40,440 INFO L481 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-12-03 05:48:40,440 INFO L276 IsEmpty]: Start isEmpty. Operand 4268 states and 4341 transitions. [2018-12-03 05:48:40,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2201 [2018-12-03 05:48:40,457 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:48:40,458 INFO L402 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 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, 13, 12, 12, 12, 11, 11, 11, 11, 10, 9, 8, 8, 8, 8, 8, 8, 7, 7, 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, 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] [2018-12-03 05:48:40,458 INFO L423 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 05:48:40,458 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:48:40,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1114158568, now seen corresponding path program 1 times [2018-12-03 05:48:40,458 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 05:48:40,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:48:40,458 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:48:40,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:48:40,459 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 05:48:40,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:48:42,421 INFO L134 CoverageAnalysis]: Checked inductivity of 15194 backedges. 6664 proven. 2405 refuted. 0 times theorem prover too weak. 6125 trivial. 0 not checked. [2018-12-03 05:48:42,421 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 05:48:42,421 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 05:48:42,422 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 2201 with the following transitions: [2018-12-03 05:48:42,422 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], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [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], [670], [671], [675], [679], [683], [686], [687], [690], [691], [694], [695], [699], [703], [707], [711], [715], [718], [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], [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] [2018-12-03 05:48:42,423 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 05:48:42,424 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 05:48:46,173 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 05:48:46,173 INFO L272 AbstractInterpreter]: Visited 204 different actions 820 times. Merged at 11 different actions 37 times. Widened at 1 different actions 1 times. Performed 9221 root evaluator evaluations with a maximum evaluation depth of 21. Performed 9221 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 22 fixpoints after 13 different actions. Largest state had 24 variables. [2018-12-03 05:48:46,176 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:48:46,176 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 05:48:46,176 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 05:48:46,176 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_97017beb-989e-4953-a741-c9282b8200d3/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 [2018-12-03 05:48:46,197 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:48:46,197 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 05:48:46,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:48:46,407 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 05:48:47,488 INFO L134 CoverageAnalysis]: Checked inductivity of 15194 backedges. 5616 proven. 2 refuted. 0 times theorem prover too weak. 9576 trivial. 0 not checked. [2018-12-03 05:48:47,488 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 05:48:48,802 INFO L134 CoverageAnalysis]: Checked inductivity of 15194 backedges. 2474 proven. 244 refuted. 0 times theorem prover too weak. 12476 trivial. 0 not checked. [2018-12-03 05:48:48,818 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 05:48:48,819 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 11 [2018-12-03 05:48:48,819 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 05:48:48,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-03 05:48:48,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-03 05:48:48,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-03 05:48:48,820 INFO L87 Difference]: Start difference. First operand 4268 states and 4341 transitions. Second operand 10 states. [2018-12-03 05:48:49,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:48:49,540 INFO L93 Difference]: Finished difference Result 7974 states and 8106 transitions. [2018-12-03 05:48:49,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-03 05:48:49,540 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 2200 [2018-12-03 05:48:49,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:48:49,545 INFO L225 Difference]: With dead ends: 7974 [2018-12-03 05:48:49,545 INFO L226 Difference]: Without dead ends: 3896 [2018-12-03 05:48:49,548 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4433 GetRequests, 4414 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2018-12-03 05:48:49,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3896 states. [2018-12-03 05:48:49,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3896 to 3894. [2018-12-03 05:48:49,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3894 states. [2018-12-03 05:48:49,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3894 states to 3894 states and 3944 transitions. [2018-12-03 05:48:49,587 INFO L78 Accepts]: Start accepts. Automaton has 3894 states and 3944 transitions. Word has length 2200 [2018-12-03 05:48:49,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:48:49,588 INFO L480 AbstractCegarLoop]: Abstraction has 3894 states and 3944 transitions. [2018-12-03 05:48:49,588 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-03 05:48:49,589 INFO L276 IsEmpty]: Start isEmpty. Operand 3894 states and 3944 transitions. [2018-12-03 05:48:49,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2324 [2018-12-03 05:48:49,608 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:48:49,608 INFO L402 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 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, 14, 13, 13, 13, 12, 12, 12, 12, 11, 10, 9, 9, 9, 9, 9, 9, 8, 8, 6, 6, 6, 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, 3, 3, 3, 3, 3, 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] [2018-12-03 05:48:49,609 INFO L423 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 05:48:49,609 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:48:49,609 INFO L82 PathProgramCache]: Analyzing trace with hash 415764510, now seen corresponding path program 1 times [2018-12-03 05:48:49,609 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 05:48:49,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:48:49,610 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:48:49,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:48:49,610 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 05:48:49,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:48:54,923 INFO L134 CoverageAnalysis]: Checked inductivity of 17161 backedges. 6668 proven. 6104 refuted. 0 times theorem prover too weak. 4389 trivial. 0 not checked. [2018-12-03 05:48:54,923 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 05:48:54,923 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 05:48:54,924 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 2324 with the following transitions: [2018-12-03 05:48:54,924 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], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [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], [670], [671], [675], [679], [683], [686], [687], [690], [691], [694], [695], [699], [703], [707], [711], [715], [718], [719], [723], [726], [727], [731], [735], [738], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [778], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [906], [907], [911], [915], [919], [923], [926], [927], [931], [934], [935], [939], [943], [946], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-03 05:48:54,925 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 05:48:54,925 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 05:48:59,261 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 05:48:59,261 INFO L272 AbstractInterpreter]: Visited 206 different actions 1046 times. Merged at 13 different actions 59 times. Widened at 1 different actions 3 times. Performed 12207 root evaluator evaluations with a maximum evaluation depth of 21. Performed 12207 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 40 fixpoints after 14 different actions. Largest state had 24 variables. [2018-12-03 05:48:59,262 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:48:59,263 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 05:48:59,263 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 05:48:59,263 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_97017beb-989e-4953-a741-c9282b8200d3/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 [2018-12-03 05:48:59,270 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:48:59,271 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 05:48:59,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:48:59,527 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 05:49:00,968 INFO L134 CoverageAnalysis]: Checked inductivity of 17161 backedges. 7301 proven. 2 refuted. 0 times theorem prover too weak. 9858 trivial. 0 not checked. [2018-12-03 05:49:00,969 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 05:49:03,607 INFO L134 CoverageAnalysis]: Checked inductivity of 17161 backedges. 2546 proven. 372 refuted. 0 times theorem prover too weak. 14243 trivial. 0 not checked. [2018-12-03 05:49:03,623 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 05:49:03,624 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 5, 5] total 22 [2018-12-03 05:49:03,624 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 05:49:03,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-12-03 05:49:03,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-12-03 05:49:03,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2018-12-03 05:49:03,625 INFO L87 Difference]: Start difference. First operand 3894 states and 3944 transitions. Second operand 20 states. [2018-12-03 05:49:06,650 WARN L180 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 33 [2018-12-03 05:49:07,473 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 31 [2018-12-03 05:49:08,211 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 29 [2018-12-03 05:49:08,683 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 32 [2018-12-03 05:49:08,961 WARN L180 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37 [2018-12-03 05:49:09,569 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 28 [2018-12-03 05:49:09,913 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 33 [2018-12-03 05:49:10,206 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 30 [2018-12-03 05:49:10,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:49:10,630 INFO L93 Difference]: Finished difference Result 5030 states and 5123 transitions. [2018-12-03 05:49:10,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-12-03 05:49:10,632 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 2323 [2018-12-03 05:49:10,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:49:10,636 INFO L225 Difference]: With dead ends: 5030 [2018-12-03 05:49:10,637 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 05:49:10,644 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4734 GetRequests, 4674 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 887 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=730, Invalid=2930, Unknown=0, NotChecked=0, Total=3660 [2018-12-03 05:49:10,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 05:49:10,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 05:49:10,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 05:49:10,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 05:49:10,645 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2323 [2018-12-03 05:49:10,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:49:10,646 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 05:49:10,646 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-12-03 05:49:10,646 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 05:49:10,646 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 05:49:10,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-03 05:49:10,707 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 05:49:10,714 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 05:49:10,717 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 05:49:10,723 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 05:49:10,724 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 05:49:10,725 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 05:49:10,756 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 05:49:10,790 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 05:49:10,793 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 05:49:11,007 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 05:49:11,029 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 05:49:11,378 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 05:49:11,643 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 05:49:11,676 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 05:49:11,763 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 05:49:11,904 WARN L180 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 818 DAG size of output: 701 [2018-12-03 05:49:11,989 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 05:49:12,105 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 05:49:12,125 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 05:49:12,606 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 05:49:12,646 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 05:49:12,701 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 05:49:12,844 WARN L180 SmtUtils]: Spent 938.00 ms on a formula simplification. DAG size of input: 798 DAG size of output: 678 [2018-12-03 05:49:14,326 WARN L180 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 404 DAG size of output: 139 [2018-12-03 05:49:20,412 WARN L180 SmtUtils]: Spent 6.07 s on a formula simplification. DAG size of input: 695 DAG size of output: 116 [2018-12-03 05:49:24,131 WARN L180 SmtUtils]: Spent 3.71 s on a formula simplification. DAG size of input: 675 DAG size of output: 121 [2018-12-03 05:49:24,133 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-03 05:49:24,133 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= |old(~a15~0)| ~a15~0)) [2018-12-03 05:49:24,133 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-03 05:49:24,133 INFO L448 ceAbstractionStarter]: For program point L432(lines 432 870) no Hoare annotation was computed. [2018-12-03 05:49:24,133 INFO L448 ceAbstractionStarter]: For program point L366(lines 366 870) no Hoare annotation was computed. [2018-12-03 05:49:24,133 INFO L448 ceAbstractionStarter]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,133 INFO L448 ceAbstractionStarter]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,133 INFO L448 ceAbstractionStarter]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,133 INFO L448 ceAbstractionStarter]: For program point L235(lines 235 870) no Hoare annotation was computed. [2018-12-03 05:49:24,133 INFO L448 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-12-03 05:49:24,133 INFO L448 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-12-03 05:49:24,133 INFO L448 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-12-03 05:49:24,133 INFO L448 ceAbstractionStarter]: For program point L764(lines 764 870) no Hoare annotation was computed. [2018-12-03 05:49:24,133 INFO L448 ceAbstractionStarter]: For program point L632(lines 632 870) no Hoare annotation was computed. [2018-12-03 05:49:24,133 INFO L448 ceAbstractionStarter]: For program point L500(lines 500 870) no Hoare annotation was computed. [2018-12-03 05:49:24,133 INFO L448 ceAbstractionStarter]: For program point L831(lines 831 870) no Hoare annotation was computed. [2018-12-03 05:49:24,134 INFO L448 ceAbstractionStarter]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,134 INFO L448 ceAbstractionStarter]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,134 INFO L448 ceAbstractionStarter]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,134 INFO L448 ceAbstractionStarter]: For program point L700(lines 700 870) no Hoare annotation was computed. [2018-12-03 05:49:24,134 INFO L448 ceAbstractionStarter]: For program point L568(lines 568 870) no Hoare annotation was computed. [2018-12-03 05:49:24,134 INFO L448 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-12-03 05:49:24,134 INFO L448 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-12-03 05:49:24,134 INFO L448 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-12-03 05:49:24,134 INFO L448 ceAbstractionStarter]: For program point L305(lines 305 870) no Hoare annotation was computed. [2018-12-03 05:49:24,134 INFO L448 ceAbstractionStarter]: For program point L438(lines 438 870) no Hoare annotation was computed. [2018-12-03 05:49:24,134 INFO L448 ceAbstractionStarter]: For program point L372(lines 372 870) no Hoare annotation was computed. [2018-12-03 05:49:24,134 INFO L448 ceAbstractionStarter]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,134 INFO L448 ceAbstractionStarter]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,134 INFO L448 ceAbstractionStarter]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,134 INFO L448 ceAbstractionStarter]: For program point L241(lines 241 870) no Hoare annotation was computed. [2018-12-03 05:49:24,134 INFO L448 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-12-03 05:49:24,134 INFO L448 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-12-03 05:49:24,134 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-12-03 05:49:24,134 INFO L448 ceAbstractionStarter]: For program point L638(lines 638 870) no Hoare annotation was computed. [2018-12-03 05:49:24,134 INFO L448 ceAbstractionStarter]: For program point L506(lines 506 870) no Hoare annotation was computed. [2018-12-03 05:49:24,134 INFO L448 ceAbstractionStarter]: For program point L837(lines 837 870) no Hoare annotation was computed. [2018-12-03 05:49:24,134 INFO L448 ceAbstractionStarter]: For program point L771(lines 771 870) no Hoare annotation was computed. [2018-12-03 05:49:24,134 INFO L448 ceAbstractionStarter]: For program point L573(lines 573 870) no Hoare annotation was computed. [2018-12-03 05:49:24,134 INFO L448 ceAbstractionStarter]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,134 INFO L448 ceAbstractionStarter]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,135 INFO L448 ceAbstractionStarter]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,135 INFO L448 ceAbstractionStarter]: For program point L706(lines 706 870) no Hoare annotation was computed. [2018-12-03 05:49:24,135 INFO L448 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-12-03 05:49:24,135 INFO L448 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-12-03 05:49:24,135 INFO L448 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-12-03 05:49:24,135 INFO L448 ceAbstractionStarter]: For program point L311(lines 311 870) no Hoare annotation was computed. [2018-12-03 05:49:24,135 INFO L448 ceAbstractionStarter]: For program point L444(lines 444 870) no Hoare annotation was computed. [2018-12-03 05:49:24,135 INFO L448 ceAbstractionStarter]: For program point L378(lines 378 870) no Hoare annotation was computed. [2018-12-03 05:49:24,135 INFO L448 ceAbstractionStarter]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,135 INFO L448 ceAbstractionStarter]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,135 INFO L448 ceAbstractionStarter]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,135 INFO L448 ceAbstractionStarter]: For program point L247(lines 247 870) no Hoare annotation was computed. [2018-12-03 05:49:24,135 INFO L448 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-12-03 05:49:24,135 INFO L448 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-12-03 05:49:24,135 INFO L448 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-12-03 05:49:24,135 INFO L448 ceAbstractionStarter]: For program point L842(lines 842 870) no Hoare annotation was computed. [2018-12-03 05:49:24,135 INFO L448 ceAbstractionStarter]: For program point L644(lines 644 870) no Hoare annotation was computed. [2018-12-03 05:49:24,135 INFO L448 ceAbstractionStarter]: For program point L512(lines 512 870) no Hoare annotation was computed. [2018-12-03 05:49:24,135 INFO L448 ceAbstractionStarter]: For program point L777(lines 777 870) no Hoare annotation was computed. [2018-12-03 05:49:24,135 INFO L448 ceAbstractionStarter]: For program point L579(lines 579 870) no Hoare annotation was computed. [2018-12-03 05:49:24,135 INFO L448 ceAbstractionStarter]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,135 INFO L448 ceAbstractionStarter]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,135 INFO L448 ceAbstractionStarter]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,135 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,136 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 112) no Hoare annotation was computed. [2018-12-03 05:49:24,136 INFO L448 ceAbstractionStarter]: For program point L712(lines 712 870) no Hoare annotation was computed. [2018-12-03 05:49:24,136 INFO L448 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-12-03 05:49:24,136 INFO L448 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-12-03 05:49:24,136 INFO L448 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-12-03 05:49:24,136 INFO L448 ceAbstractionStarter]: For program point L449(lines 449 870) no Hoare annotation was computed. [2018-12-03 05:49:24,136 INFO L448 ceAbstractionStarter]: For program point L317(lines 317 870) no Hoare annotation was computed. [2018-12-03 05:49:24,136 INFO L448 ceAbstractionStarter]: For program point L384(lines 384 870) no Hoare annotation was computed. [2018-12-03 05:49:24,136 INFO L448 ceAbstractionStarter]: For program point L252(lines 252 870) no Hoare annotation was computed. [2018-12-03 05:49:24,136 INFO L448 ceAbstractionStarter]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,136 INFO L448 ceAbstractionStarter]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,136 INFO L448 ceAbstractionStarter]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,136 INFO L448 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-12-03 05:49:24,136 INFO L448 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-12-03 05:49:24,136 INFO L448 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-12-03 05:49:24,136 INFO L448 ceAbstractionStarter]: For program point L848(lines 848 870) no Hoare annotation was computed. [2018-12-03 05:49:24,136 INFO L448 ceAbstractionStarter]: For program point L650(lines 650 870) no Hoare annotation was computed. [2018-12-03 05:49:24,136 INFO L448 ceAbstractionStarter]: For program point L518(lines 518 870) no Hoare annotation was computed. [2018-12-03 05:49:24,136 INFO L448 ceAbstractionStarter]: For program point L783(lines 783 870) no Hoare annotation was computed. [2018-12-03 05:49:24,136 INFO L448 ceAbstractionStarter]: For program point L585(lines 585 870) no Hoare annotation was computed. [2018-12-03 05:49:24,136 INFO L448 ceAbstractionStarter]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,136 INFO L448 ceAbstractionStarter]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,136 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,136 INFO L448 ceAbstractionStarter]: For program point L718(lines 718 870) no Hoare annotation was computed. [2018-12-03 05:49:24,136 INFO L448 ceAbstractionStarter]: For program point L454(lines 454 870) no Hoare annotation was computed. [2018-12-03 05:49:24,136 INFO L448 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-12-03 05:49:24,137 INFO L448 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-12-03 05:49:24,137 INFO L448 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-12-03 05:49:24,137 INFO L448 ceAbstractionStarter]: For program point L323(lines 323 870) no Hoare annotation was computed. [2018-12-03 05:49:24,137 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse25 (= 1 ~a24~0)) (.cse22 (= 7 |old(~a21~0)|)) (.cse26 (= ~a24~0 1)) (.cse17 (= ~a12~0 |old(~a12~0)|)) (.cse18 (= ~a24~0 |old(~a24~0)|)) (.cse19 (= ~a21~0 |old(~a21~0)|)) (.cse0 (= |old(~a15~0)| ~a15~0))) (let ((.cse2 (not (= 5 |old(~a15~0)|))) (.cse11 (and .cse17 .cse18 .cse19 .cse0)) (.cse3 (not (= 6 |old(~a15~0)|))) (.cse23 (<= (+ ~a12~0 43) 0)) (.cse20 (< 0 (+ |old(~a12~0)| 43))) (.cse13 (not (= 10 |old(~a21~0)|))) (.cse9 (not (= 6 |old(~a21~0)|))) (.cse15 (not (= 8 |old(~a15~0)|))) (.cse12 (and .cse17 .cse19 (= 8 ~a15~0) .cse26)) (.cse4 (not (= 9 |old(~a21~0)|))) (.cse14 (< 11 |old(~a12~0)|)) (.cse1 (not .cse22)) (.cse24 (< 7 |old(~a15~0)|)) (.cse6 (and .cse17 .cse19 .cse25 (= 9 ~a15~0))) (.cse5 (not (= 9 |old(~a15~0)|))) (.cse16 (= |calculate_output_#in~input| 0)) (.cse7 (<= |old(~a12~0)| 80)) (.cse21 (not (= |old(~a15~0)| 8))) (.cse10 (not (= 8 |old(~a21~0)|))) (.cse8 (not (= 1 |old(~a24~0)|)))) (and (or (and .cse0 (= 7 ~a21~0)) .cse1 .cse2) (or .cse3 (= 6 ~a15~0)) (or .cse4 .cse5 .cse6 .cse7 .cse8) (or .cse9 (< 80 |old(~a12~0)|) .cse8 (<= ~a12~0 80) .cse2) (or .cse5 (and .cse1 .cse10) .cse8 .cse7 .cse11) (or .cse12 (or .cse13 .cse8 .cse14 .cse15 .cse16)) (or (and .cse17 .cse18 .cse19 (= 5 ~a15~0)) .cse9 .cse20 .cse2) (or .cse18 .cse2 .cse8) (or .cse13 .cse12 .cse8 .cse15 .cse16 .cse7) (or .cse6 .cse10 .cse5 .cse8 .cse14) (or (or (or .cse16 .cse1 .cse14) .cse8) .cse21 .cse12) (or .cse6 .cse5 (or .cse9 .cse8) (< 95434 |old(~a12~0)|) (<= |old(~a12~0)| 95380)) (or (or (= 0 |old(~a21~0)|) (< 76 |old(~a12~0)|) .cse22 .cse16) .cse12 (< |old(~a12~0)| 19) .cse8 .cse21) (or .cse5 (or .cse13 .cse7) .cse11 .cse8) (or .cse23 .cse3 .cse20) (or .cse9 .cse23 .cse8 .cse24 .cse20) (or .cse5 .cse13 .cse8 .cse14 .cse6) (or .cse8 (and .cse18 .cse19 .cse0) .cse24 .cse22) (or .cse12 (< |old(~a12~0)| 286349) (or .cse9 .cse8 .cse15 .cse16)) (or .cse12 (or .cse4 .cse14 .cse16) .cse8 .cse21) (or (< 0 (+ |old(~a12~0)| 460233)) .cse1 .cse8 (and .cse17 .cse19 .cse0 .cse25) .cse24) (or (< 72 |old(~a12~0)|) .cse10 .cse6 .cse5 .cse8 (<= |old(~a12~0)| 18)) (or (and .cse17 (= ~a21~0 8) .cse0 .cse26) .cse16 .cse7 .cse21 .cse10 .cse8 (< 73282 |old(~a12~0)|))))) [2018-12-03 05:49:24,137 INFO L448 ceAbstractionStarter]: For program point L390(lines 390 870) no Hoare annotation was computed. [2018-12-03 05:49:24,137 INFO L448 ceAbstractionStarter]: For program point L258(lines 258 870) no Hoare annotation was computed. [2018-12-03 05:49:24,137 INFO L448 ceAbstractionStarter]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,137 INFO L448 ceAbstractionStarter]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,137 INFO L448 ceAbstractionStarter]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,137 INFO L448 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-12-03 05:49:24,137 INFO L448 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-12-03 05:49:24,137 INFO L448 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-12-03 05:49:24,137 INFO L448 ceAbstractionStarter]: For program point L854(lines 854 870) no Hoare annotation was computed. [2018-12-03 05:49:24,137 INFO L448 ceAbstractionStarter]: For program point L656(lines 656 870) no Hoare annotation was computed. [2018-12-03 05:49:24,137 INFO L448 ceAbstractionStarter]: For program point L524(lines 524 870) no Hoare annotation was computed. [2018-12-03 05:49:24,137 INFO L448 ceAbstractionStarter]: For program point L789(lines 789 870) no Hoare annotation was computed. [2018-12-03 05:49:24,137 INFO L448 ceAbstractionStarter]: For program point L591(lines 591 870) no Hoare annotation was computed. [2018-12-03 05:49:24,137 INFO L448 ceAbstractionStarter]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,137 INFO L448 ceAbstractionStarter]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,138 INFO L448 ceAbstractionStarter]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,138 INFO L448 ceAbstractionStarter]: For program point L724(lines 724 870) no Hoare annotation was computed. [2018-12-03 05:49:24,138 INFO L448 ceAbstractionStarter]: For program point L460(lines 460 870) no Hoare annotation was computed. [2018-12-03 05:49:24,138 INFO L448 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-12-03 05:49:24,138 INFO L448 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-12-03 05:49:24,138 INFO L448 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-12-03 05:49:24,138 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 870) no Hoare annotation was computed. [2018-12-03 05:49:24,138 INFO L448 ceAbstractionStarter]: For program point L396(lines 396 870) no Hoare annotation was computed. [2018-12-03 05:49:24,138 INFO L448 ceAbstractionStarter]: For program point L264(lines 264 870) no Hoare annotation was computed. [2018-12-03 05:49:24,138 INFO L448 ceAbstractionStarter]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,138 INFO L448 ceAbstractionStarter]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,138 INFO L448 ceAbstractionStarter]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,138 INFO L448 ceAbstractionStarter]: For program point L859(lines 859 870) no Hoare annotation was computed. [2018-12-03 05:49:24,138 INFO L448 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-12-03 05:49:24,138 INFO L448 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-12-03 05:49:24,138 INFO L448 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-12-03 05:49:24,138 INFO L448 ceAbstractionStarter]: For program point L662(lines 662 870) no Hoare annotation was computed. [2018-12-03 05:49:24,138 INFO L448 ceAbstractionStarter]: For program point L530(lines 530 870) no Hoare annotation was computed. [2018-12-03 05:49:24,138 INFO L448 ceAbstractionStarter]: For program point L795(lines 795 870) no Hoare annotation was computed. [2018-12-03 05:49:24,138 INFO L448 ceAbstractionStarter]: For program point L597(lines 597 870) no Hoare annotation was computed. [2018-12-03 05:49:24,138 INFO L448 ceAbstractionStarter]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,138 INFO L448 ceAbstractionStarter]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,138 INFO L448 ceAbstractionStarter]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,138 INFO L448 ceAbstractionStarter]: For program point L730(lines 730 870) no Hoare annotation was computed. [2018-12-03 05:49:24,138 INFO L448 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-12-03 05:49:24,138 INFO L448 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-12-03 05:49:24,139 INFO L448 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-12-03 05:49:24,139 INFO L448 ceAbstractionStarter]: For program point L467(lines 467 870) no Hoare annotation was computed. [2018-12-03 05:49:24,139 INFO L448 ceAbstractionStarter]: For program point L335(lines 335 870) no Hoare annotation was computed. [2018-12-03 05:49:24,139 INFO L448 ceAbstractionStarter]: For program point L269(lines 269 870) no Hoare annotation was computed. [2018-12-03 05:49:24,139 INFO L448 ceAbstractionStarter]: For program point L402(lines 402 870) no Hoare annotation was computed. [2018-12-03 05:49:24,139 INFO L448 ceAbstractionStarter]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,139 INFO L448 ceAbstractionStarter]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,139 INFO L448 ceAbstractionStarter]: For program point L865(lines 865 870) no Hoare annotation was computed. [2018-12-03 05:49:24,139 INFO L448 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-12-03 05:49:24,139 INFO L448 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-12-03 05:49:24,139 INFO L448 ceAbstractionStarter]: For program point L668(lines 668 870) no Hoare annotation was computed. [2018-12-03 05:49:24,139 INFO L448 ceAbstractionStarter]: For program point L536(lines 536 870) no Hoare annotation was computed. [2018-12-03 05:49:24,139 INFO L448 ceAbstractionStarter]: For program point L801(lines 801 870) no Hoare annotation was computed. [2018-12-03 05:49:24,139 INFO L448 ceAbstractionStarter]: For program point L735(lines 735 870) no Hoare annotation was computed. [2018-12-03 05:49:24,139 INFO L448 ceAbstractionStarter]: For program point L603(lines 603 870) no Hoare annotation was computed. [2018-12-03 05:49:24,139 INFO L448 ceAbstractionStarter]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,139 INFO L448 ceAbstractionStarter]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,139 INFO L448 ceAbstractionStarter]: For program point L472(lines 472 870) no Hoare annotation was computed. [2018-12-03 05:49:24,139 INFO L448 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-12-03 05:49:24,139 INFO L448 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-12-03 05:49:24,139 INFO L448 ceAbstractionStarter]: For program point L341(lines 341 870) no Hoare annotation was computed. [2018-12-03 05:49:24,139 INFO L448 ceAbstractionStarter]: For program point L275(lines 275 870) no Hoare annotation was computed. [2018-12-03 05:49:24,139 INFO L448 ceAbstractionStarter]: For program point L408(lines 408 870) no Hoare annotation was computed. [2018-12-03 05:49:24,139 INFO L448 ceAbstractionStarter]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,139 INFO L448 ceAbstractionStarter]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,139 INFO L448 ceAbstractionStarter]: For program point L541(lines 541 870) no Hoare annotation was computed. [2018-12-03 05:49:24,140 INFO L448 ceAbstractionStarter]: For program point L211(lines 211 870) no Hoare annotation was computed. [2018-12-03 05:49:24,140 INFO L448 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-12-03 05:49:24,140 INFO L448 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-12-03 05:49:24,140 INFO L448 ceAbstractionStarter]: For program point L674(lines 674 870) no Hoare annotation was computed. [2018-12-03 05:49:24,140 INFO L448 ceAbstractionStarter]: For program point L807(lines 807 870) no Hoare annotation was computed. [2018-12-03 05:49:24,140 INFO L448 ceAbstractionStarter]: For program point L741(lines 741 870) no Hoare annotation was computed. [2018-12-03 05:49:24,140 INFO L448 ceAbstractionStarter]: For program point L609(lines 609 870) no Hoare annotation was computed. [2018-12-03 05:49:24,140 INFO L448 ceAbstractionStarter]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,140 INFO L448 ceAbstractionStarter]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,140 INFO L448 ceAbstractionStarter]: For program point L478(lines 478 870) no Hoare annotation was computed. [2018-12-03 05:49:24,140 INFO L448 ceAbstractionStarter]: For program point L280(lines 280 870) no Hoare annotation was computed. [2018-12-03 05:49:24,140 INFO L448 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-12-03 05:49:24,140 INFO L448 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-12-03 05:49:24,140 INFO L448 ceAbstractionStarter]: For program point L677(lines 677 870) no Hoare annotation was computed. [2018-12-03 05:49:24,140 INFO L448 ceAbstractionStarter]: For program point L347(lines 347 870) no Hoare annotation was computed. [2018-12-03 05:49:24,140 INFO L448 ceAbstractionStarter]: For program point L414(lines 414 870) no Hoare annotation was computed. [2018-12-03 05:49:24,140 INFO L448 ceAbstractionStarter]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,140 INFO L448 ceAbstractionStarter]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,140 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,140 INFO L448 ceAbstractionStarter]: For program point L547(lines 547 870) no Hoare annotation was computed. [2018-12-03 05:49:24,140 INFO L448 ceAbstractionStarter]: For program point L217(lines 217 870) no Hoare annotation was computed. [2018-12-03 05:49:24,140 INFO L448 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-12-03 05:49:24,140 INFO L448 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-12-03 05:49:24,140 INFO L448 ceAbstractionStarter]: For program point L747(lines 747 870) no Hoare annotation was computed. [2018-12-03 05:49:24,140 INFO L448 ceAbstractionStarter]: For program point L615(lines 615 870) no Hoare annotation was computed. [2018-12-03 05:49:24,140 INFO L448 ceAbstractionStarter]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,140 INFO L448 ceAbstractionStarter]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,141 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-12-03 05:49:24,141 INFO L448 ceAbstractionStarter]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,141 INFO L448 ceAbstractionStarter]: For program point L814(lines 814 870) no Hoare annotation was computed. [2018-12-03 05:49:24,141 INFO L448 ceAbstractionStarter]: For program point L484(lines 484 870) no Hoare annotation was computed. [2018-12-03 05:49:24,141 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 870) no Hoare annotation was computed. [2018-12-03 05:49:24,141 INFO L448 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-12-03 05:49:24,141 INFO L448 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-12-03 05:49:24,141 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-12-03 05:49:24,141 INFO L448 ceAbstractionStarter]: For program point L683(lines 683 870) no Hoare annotation was computed. [2018-12-03 05:49:24,141 INFO L448 ceAbstractionStarter]: For program point L353(lines 353 870) no Hoare annotation was computed. [2018-12-03 05:49:24,141 INFO L448 ceAbstractionStarter]: For program point L552(lines 552 870) no Hoare annotation was computed. [2018-12-03 05:49:24,141 INFO L448 ceAbstractionStarter]: For program point L420(lines 420 870) no Hoare annotation was computed. [2018-12-03 05:49:24,141 INFO L448 ceAbstractionStarter]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,141 INFO L448 ceAbstractionStarter]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,141 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,141 INFO L448 ceAbstractionStarter]: For program point L223(lines 223 870) no Hoare annotation was computed. [2018-12-03 05:49:24,141 INFO L448 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-12-03 05:49:24,141 INFO L448 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-12-03 05:49:24,141 INFO L448 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-12-03 05:49:24,141 INFO L448 ceAbstractionStarter]: For program point L752(lines 752 870) no Hoare annotation was computed. [2018-12-03 05:49:24,141 INFO L448 ceAbstractionStarter]: For program point L819(lines 819 870) no Hoare annotation was computed. [2018-12-03 05:49:24,141 INFO L448 ceAbstractionStarter]: For program point L621(lines 621 870) no Hoare annotation was computed. [2018-12-03 05:49:24,141 INFO L448 ceAbstractionStarter]: For program point L555(lines 555 870) no Hoare annotation was computed. [2018-12-03 05:49:24,141 INFO L448 ceAbstractionStarter]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,141 INFO L448 ceAbstractionStarter]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,141 INFO L448 ceAbstractionStarter]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,141 INFO L448 ceAbstractionStarter]: For program point L688(lines 688 870) no Hoare annotation was computed. [2018-12-03 05:49:24,142 INFO L448 ceAbstractionStarter]: For program point L490(lines 490 870) no Hoare annotation was computed. [2018-12-03 05:49:24,142 INFO L448 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-12-03 05:49:24,142 INFO L448 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-12-03 05:49:24,142 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-12-03 05:49:24,142 INFO L448 ceAbstractionStarter]: For program point L359(lines 359 870) no Hoare annotation was computed. [2018-12-03 05:49:24,142 INFO L448 ceAbstractionStarter]: For program point L293(lines 293 870) no Hoare annotation was computed. [2018-12-03 05:49:24,142 INFO L448 ceAbstractionStarter]: For program point L426(lines 426 870) no Hoare annotation was computed. [2018-12-03 05:49:24,142 INFO L448 ceAbstractionStarter]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,142 INFO L448 ceAbstractionStarter]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,142 INFO L448 ceAbstractionStarter]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,142 INFO L448 ceAbstractionStarter]: For program point L229(lines 229 870) no Hoare annotation was computed. [2018-12-03 05:49:24,142 INFO L448 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-12-03 05:49:24,142 INFO L448 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-12-03 05:49:24,142 INFO L448 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-12-03 05:49:24,142 INFO L448 ceAbstractionStarter]: For program point L758(lines 758 870) no Hoare annotation was computed. [2018-12-03 05:49:24,142 INFO L448 ceAbstractionStarter]: For program point L626(lines 626 870) no Hoare annotation was computed. [2018-12-03 05:49:24,142 INFO L448 ceAbstractionStarter]: For program point L825(lines 825 870) no Hoare annotation was computed. [2018-12-03 05:49:24,142 INFO L448 ceAbstractionStarter]: For program point L561(lines 561 870) no Hoare annotation was computed. [2018-12-03 05:49:24,142 INFO L448 ceAbstractionStarter]: For program point L495(lines 495 870) no Hoare annotation was computed. [2018-12-03 05:49:24,142 INFO L448 ceAbstractionStarter]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,142 INFO L448 ceAbstractionStarter]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,142 INFO L448 ceAbstractionStarter]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2018-12-03 05:49:24,142 INFO L448 ceAbstractionStarter]: For program point L694(lines 694 870) no Hoare annotation was computed. [2018-12-03 05:49:24,142 INFO L448 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-12-03 05:49:24,142 INFO L448 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-12-03 05:49:24,142 INFO L448 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-12-03 05:49:24,142 INFO L448 ceAbstractionStarter]: For program point L299(lines 299 870) no Hoare annotation was computed. [2018-12-03 05:49:24,143 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-03 05:49:24,143 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)) [2018-12-03 05:49:24,143 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-03 05:49:24,143 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-03 05:49:24,143 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)|)) (not (= 1 |old(~a24~0)|)) (not (= 0 (+ |old(~a12~0)| 49))) (and (= (+ ~a12~0 49) 0) (= 7 ~a21~0) (= |old(~a15~0)| ~a15~0) (= ~a24~0 1))) [2018-12-03 05:49:24,143 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2018-12-03 05:49:24,143 INFO L444 ceAbstractionStarter]: At program point L888(line 888) the Hoare annotation is: (let ((.cse8 (= 7 ~a21~0)) (.cse19 (not (= 1 |old(~a24~0)|))) (.cse2 (= 9 ~a21~0))) (let ((.cse1 (= 1 ~a24~0)) (.cse20 (not .cse2)) (.cse21 (or (not (= 6 |old(~a21~0)|)) (not (= 5 |old(~a15~0)|)) .cse19)) (.cse22 (not (= ~a21~0 0))) (.cse17 (not .cse8)) (.cse9 (not (= main_~input~0 0))) (.cse23 (= ~a15~0 8)) (.cse24 (= ~a24~0 1))) (let ((.cse6 (and .cse22 .cse17 .cse9 .cse23 .cse24)) (.cse0 (= 5 ~a15~0)) (.cse11 (= 8 ~a15~0)) (.cse18 (<= ~a15~0 7)) (.cse13 (= ~a24~0 |old(~a24~0)|)) (.cse16 (= ~a21~0 6)) (.cse14 (= 8 ~a21~0)) (.cse7 (<= 19 ~a12~0)) (.cse5 (and .cse20 .cse22 .cse17 .cse9 .cse23 .cse24 .cse21)) (.cse10 (<= ~a12~0 11)) (.cse12 (= ~a21~0 10)) (.cse15 (and .cse20 .cse17 .cse1 .cse21)) (.cse3 (< 80 ~a12~0)) (.cse4 (= 9 ~a15~0))) (or (and .cse0 (= 6 ~a21~0) (<= (+ ~a12~0 43) 0)) (not (= 8 |old(~a15~0)|)) (and .cse1 .cse2 .cse3 .cse4) (and (and (<= ~a12~0 73282) (and .cse5 (= ~a21~0 8))) .cse3) (and (and (<= ~a12~0 76) .cse6) .cse7) (= 6 ~a15~0) (and (and (and (and .cse8 .cse9) .cse10) .cse11) .cse1) (and (and .cse10 .cse12) .cse13 .cse4) (and .cse2 .cse10 .cse6) (and (or (and .cse1 .cse8) (and .cse14 .cse15)) .cse3 .cse4) (not (= 7 |old(~a21~0)|)) (not (= 0 (+ |old(~a12~0)| 49))) (and .cse8 .cse0) (and (and (and .cse15 .cse10) .cse14) .cse4) (and (<= 286349 ~a12~0) (and (and (and .cse16 .cse9) .cse11) .cse1)) (and .cse17 .cse1 .cse18) (and (<= (+ ~a12~0 460233) 0) .cse1 .cse18) (and .cse13 .cse4 (and (<= ~a12~0 95434) .cse16 (< 95380 ~a12~0))) (and (and (and .cse14 .cse15 (<= ~a12~0 72)) .cse7) .cse4) .cse19 (and .cse3 (and .cse5 .cse12)) (and (and .cse5 .cse10) .cse12) (and (and .cse12 .cse15 .cse3) .cse4))))) [2018-12-03 05:49:24,143 INFO L448 ceAbstractionStarter]: For program point L888-1(line 888) no Hoare annotation was computed. [2018-12-03 05:49:24,143 INFO L448 ceAbstractionStarter]: For program point L885(line 885) no Hoare annotation was computed. [2018-12-03 05:49:24,143 INFO L444 ceAbstractionStarter]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse20 (not (= 1 |old(~a24~0)|))) (.cse13 (= 7 ~a21~0)) (.cse5 (= 9 ~a21~0))) (let ((.cse4 (= 1 ~a24~0)) (.cse21 (not .cse5)) (.cse8 (not (= ~a21~0 0))) (.cse9 (not .cse13)) (.cse10 (= ~a15~0 8)) (.cse11 (= ~a24~0 1)) (.cse22 (or (not (= 6 |old(~a21~0)|)) (not (= 5 |old(~a15~0)|)) .cse20))) (let ((.cse15 (= 8 ~a15~0)) (.cse3 (= 5 ~a15~0)) (.cse2 (<= ~a12~0 11)) (.cse19 (<= ~a15~0 7)) (.cse14 (= ~a24~0 |old(~a24~0)|)) (.cse16 (= ~a21~0 6)) (.cse17 (= 8 ~a21~0)) (.cse12 (<= 19 ~a12~0)) (.cse1 (and .cse21 .cse8 .cse9 .cse10 .cse11 .cse22)) (.cse0 (= ~a21~0 10)) (.cse18 (and .cse21 .cse9 .cse4 .cse22)) (.cse6 (< 80 ~a12~0)) (.cse7 (= 9 ~a15~0))) (or (and .cse0 (and .cse1 .cse2)) (and .cse3 (= 6 ~a21~0) (<= (+ ~a12~0 43) 0)) (not (= 8 |old(~a15~0)|)) (and .cse4 .cse5 .cse6 .cse7) (and (and (<= ~a12~0 76) (and .cse8 .cse9 .cse10 .cse11)) .cse12) (and (and .cse13 .cse2) .cse14 (= |old(~a15~0)| ~a15~0)) (and .cse15 .cse5 .cse14 .cse2) (and (<= 286349 ~a12~0) (and (and .cse16 .cse14) .cse15)) (= 6 ~a15~0) (and (and .cse2 .cse0) .cse14 .cse7) (and (or (and .cse4 .cse13) (and .cse17 .cse18)) .cse6 .cse7) (not (= 7 |old(~a21~0)|)) (not (= 0 (+ |old(~a12~0)| 49))) (and .cse13 .cse3) (and (and (and .cse18 .cse2) .cse17) .cse7) (and .cse6 (and (<= ~a12~0 73282) (and .cse1 (= ~a21~0 8)))) (and .cse9 .cse4 .cse19) (and (<= (+ ~a12~0 460233) 0) .cse4 .cse19) (and .cse14 .cse7 (and (<= ~a12~0 95434) .cse16 (< 95380 ~a12~0))) (and (and (and .cse17 .cse18 (<= ~a12~0 72)) .cse12) .cse7) .cse20 (and .cse6 (and .cse1 .cse0)) (and (and .cse0 .cse18 .cse6) .cse7))))) [2018-12-03 05:49:24,143 INFO L448 ceAbstractionStarter]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2018-12-03 05:49:24,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 05:49:24 BoogieIcfgContainer [2018-12-03 05:49:24,152 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 05:49:24,153 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 05:49:24,153 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 05:49:24,153 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 05:49:24,153 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:44:56" (3/4) ... [2018-12-03 05:49:24,155 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-03 05:49:24,159 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-03 05:49:24,159 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-12-03 05:49:24,160 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-03 05:49:24,167 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-03 05:49:24,167 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-03 05:49:24,185 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((a21 == 10 && (((((!(9 == a21) && !(a21 == 0)) && !(7 == a21)) && a15 == 8) && a24 == 1) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && a12 <= 11) || ((5 == a15 && 6 == a21) && a12 + 43 <= 0)) || !(8 == \old(a15))) || (((1 == a24 && 9 == a21) && 80 < a12) && 9 == a15)) || ((a12 <= 76 && ((!(a21 == 0) && !(7 == a21)) && a15 == 8) && a24 == 1) && 19 <= a12)) || (((7 == a21 && a12 <= 11) && a24 == \old(a24)) && \old(a15) == a15)) || (((8 == a15 && 9 == a21) && a24 == \old(a24)) && a12 <= 11)) || (286349 <= a12 && (a21 == 6 && a24 == \old(a24)) && 8 == a15)) || 6 == a15) || (((a12 <= 11 && a21 == 10) && a24 == \old(a24)) && 9 == a15)) || ((((1 == a24 && 7 == a21) || (8 == a21 && ((!(9 == a21) && !(7 == a21)) && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24))))) && 80 < a12) && 9 == a15)) || !(7 == \old(a21))) || !(0 == \old(a12) + 49)) || (7 == a21 && 5 == a15)) || ((((((!(9 == a21) && !(7 == a21)) && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && a12 <= 11) && 8 == a21) && 9 == a15)) || (80 < a12 && a12 <= 73282 && (((((!(9 == a21) && !(a21 == 0)) && !(7 == a21)) && a15 == 8) && a24 == 1) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && a21 == 8)) || ((!(7 == a21) && 1 == a24) && a15 <= 7)) || ((a12 + 460233 <= 0 && 1 == a24) && a15 <= 7)) || ((a24 == \old(a24) && 9 == a15) && (a12 <= 95434 && a21 == 6) && 95380 < a12)) || ((((8 == a21 && ((!(9 == a21) && !(7 == a21)) && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && a12 <= 72) && 19 <= a12) && 9 == a15)) || !(1 == \old(a24))) || (80 < a12 && (((((!(9 == a21) && !(a21 == 0)) && !(7 == a21)) && a15 == 8) && a24 == 1) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && a21 == 10)) || (((a21 == 10 && ((!(9 == a21) && !(7 == a21)) && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && 80 < a12) && 9 == a15) [2018-12-03 05:49:24,233 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_97017beb-989e-4953-a741-c9282b8200d3/bin-2019/utaipan/witness.graphml [2018-12-03 05:49:24,234 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 05:49:24,234 INFO L168 Benchmark]: Toolchain (without parser) took 269054.02 ms. Allocated memory was 1.0 GB in the beginning and 5.0 GB in the end (delta: 4.0 GB). Free memory was 947.0 MB in the beginning and 1.2 GB in the end (delta: -286.9 MB). Peak memory consumption was 3.7 GB. Max. memory is 11.5 GB. [2018-12-03 05:49:24,234 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 05:49:24,234 INFO L168 Benchmark]: CACSL2BoogieTranslator took 339.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -167.1 MB). Peak memory consumption was 39.2 MB. Max. memory is 11.5 GB. [2018-12-03 05:49:24,235 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.95 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: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2018-12-03 05:49:24,235 INFO L168 Benchmark]: Boogie Preprocessor took 41.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 05:49:24,235 INFO L168 Benchmark]: RCFGBuilder took 745.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 978.7 MB in the end (delta: 128.3 MB). Peak memory consumption was 128.3 MB. Max. memory is 11.5 GB. [2018-12-03 05:49:24,235 INFO L168 Benchmark]: TraceAbstraction took 267823.28 ms. Allocated memory was 1.2 GB in the beginning and 5.0 GB in the end (delta: 3.9 GB). Free memory was 978.7 MB in the beginning and 1.2 GB in the end (delta: -255.2 MB). Peak memory consumption was 4.3 GB. Max. memory is 11.5 GB. [2018-12-03 05:49:24,235 INFO L168 Benchmark]: Witness Printer took 81.01 ms. Allocated memory is still 5.0 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 4.2 kB). Peak memory consumption was 4.2 kB. Max. memory is 11.5 GB. [2018-12-03 05:49:24,236 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 339.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -167.1 MB). Peak memory consumption was 39.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.95 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: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 745.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 978.7 MB in the end (delta: 128.3 MB). Peak memory consumption was 128.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 267823.28 ms. Allocated memory was 1.2 GB in the beginning and 5.0 GB in the end (delta: 3.9 GB). Free memory was 978.7 MB in the beginning and 1.2 GB in the end (delta: -255.2 MB). Peak memory consumption was 4.3 GB. Max. memory is 11.5 GB. * Witness Printer took 81.01 ms. Allocated memory is still 5.0 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 4.2 kB). Peak memory consumption was 4.2 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 112]: 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: ((((((((((((((((((((((a21 == 10 && (((((!(9 == a21) && !(a21 == 0)) && !(7 == a21)) && a15 == 8) && a24 == 1) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && a12 <= 11) || ((5 == a15 && 6 == a21) && a12 + 43 <= 0)) || !(8 == \old(a15))) || (((1 == a24 && 9 == a21) && 80 < a12) && 9 == a15)) || ((a12 <= 76 && ((!(a21 == 0) && !(7 == a21)) && a15 == 8) && a24 == 1) && 19 <= a12)) || (((7 == a21 && a12 <= 11) && a24 == \old(a24)) && \old(a15) == a15)) || (((8 == a15 && 9 == a21) && a24 == \old(a24)) && a12 <= 11)) || (286349 <= a12 && (a21 == 6 && a24 == \old(a24)) && 8 == a15)) || 6 == a15) || (((a12 <= 11 && a21 == 10) && a24 == \old(a24)) && 9 == a15)) || ((((1 == a24 && 7 == a21) || (8 == a21 && ((!(9 == a21) && !(7 == a21)) && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24))))) && 80 < a12) && 9 == a15)) || !(7 == \old(a21))) || !(0 == \old(a12) + 49)) || (7 == a21 && 5 == a15)) || ((((((!(9 == a21) && !(7 == a21)) && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && a12 <= 11) && 8 == a21) && 9 == a15)) || (80 < a12 && a12 <= 73282 && (((((!(9 == a21) && !(a21 == 0)) && !(7 == a21)) && a15 == 8) && a24 == 1) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && a21 == 8)) || ((!(7 == a21) && 1 == a24) && a15 <= 7)) || ((a12 + 460233 <= 0 && 1 == a24) && a15 <= 7)) || ((a24 == \old(a24) && 9 == a15) && (a12 <= 95434 && a21 == 6) && 95380 < a12)) || ((((8 == a21 && ((!(9 == a21) && !(7 == a21)) && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && a12 <= 72) && 19 <= a12) && 9 == a15)) || !(1 == \old(a24))) || (80 < a12 && (((((!(9 == a21) && !(a21 == 0)) && !(7 == a21)) && a15 == 8) && a24 == 1) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && a21 == 10)) || (((a21 == 10 && ((!(9 == a21) && !(7 == a21)) && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && 80 < a12) && 9 == a15) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. SAFE Result, 267.7s OverallTime, 20 OverallIterations, 19 TraceHistogramMax, 151.8s AutomataDifference, 0.0s DeadEndRemovalTime, 13.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 1486 SDtfs, 52738 SDslu, 4066 SDs, 0 SdLazy, 71250 SolverSat, 8504 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 103.0s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 33546 GetRequests, 32703 SyntacticMatches, 25 SemanticMatches, 818 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21748 ImplicationChecksByTransitivity, 35.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4268occurred in iteration=18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 53.1s AbstIntTime, 17 AbstIntIterations, 4 AbstIntStrong, 0.997245757025407 AbsIntWeakeningRatio, 0.09071580439404678 AbsIntAvgWeakeningVarsNumRemoved, 16.20340184266478 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 20 MinimizatonAttempts, 5325 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 360 PreInvPairs, 472 NumberOfFragments, 1662 HoareAnnotationTreeSize, 360 FomulaSimplifications, 59674831 FormulaSimplificationTreeSizeReduction, 2.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 9294930 FormulaSimplificationTreeSizeReductionInter, 11.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.5s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 26.2s InterpolantComputationTime, 32803 NumberOfCodeBlocks, 32803 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 48299 ConstructedInterpolants, 256 QuantifiedInterpolants, 261959032 SizeOfPredicates, 21 NumberOfNonLiveVariables, 21567 ConjunctsInSsa, 98 ConjunctsInUnsatCore, 46 InterpolantComputations, 3 PerfectInterpolantSequences, 193303/224280 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...